baber/WOPTO huggingface dataset:
Patent GB-260292-A (GB)
Title: Improvements in apparatus for regulating and controlling the operation of steam generator plant
IPC: F22B37/42
Filed: 1926-10-22
Abstract: 260,292. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). Oct. 23, 1925, [Convention date]. Air supply and draught, regulating; fuel, feeding; checking combustion.-In steam-generator control apparatus of the condition-responsive type a safety device is provided whereby, in the event of accidental disturbance on the steam side, e.g. a breakage in the steam pipe, the fuel and air supply is closed down or partially throttled, and if desired closure devices in the steam or feed-water pipes are operated. The steam and feed-water pipes k, l of the boiler a are provided with perforated diaphragms m, n, the opposite sides of which communicate with the opposite sides of diaphragms in the chambers p, q. In the event of the flow of fluid in the pipe k or l becoming excessive, the diaphragm in the chamber p or q is actuated to close an electric circuit at o and operate solenoids at r<1>, s<1>, t<1>. The solenoid r throws out a switch r whereby the driving motors g, h, i of the feed supply device d, and the forced and exhaust draught fans e, f are stopped. The solenoids s<1>, t<1> effect the closure of the air supply and flue dampers s, t.
Patent GB-1263617-A (GB)
Title: Semiconductor devices and methods of making the same
Inventor: KOBAYASHI I
IPC: H01L21/00
Filed: 1969-05-23
Abstract: 1,263,617. Semi-conductor devices. SONY CORP. 23 May, 1969 [25 May, 1968], No. 26433/69. Heading H1K. A semi-conductor device such as the NPN Si transistor Trn shown includes a P(N) type substrate 101 having diffused therein an N(P) type region 103A and a layer 106 vapour deposited thereon. The layer 106 includes an annular N+(P+) type polycrystalline region 106A formed over part of the region 103A and surrounding a monocrystalline N(P) type region 103A<SP>1</SP>, and N+(P+) type regions 136A also form in the monocrystalline material both inside and outside the annulus of the polycrystalline region 106A. The polycrystalline material forms because of pre-treatment of selected areas of the surface of the substrate 101 prior to vapour deposition of the layer 106. This pretreatment may consist of roughening or scratching or deposition of Si or SiO 2 . The layer 106 is basically almost intrinsic, but redistribution of impurities from the surface of the substrate 101 either during or after deposition imparts the desired conductivity properties to the layer 106. Such redistribution occurs far more rapidly in the polycrystalline material than in the monocrystalline material, with the result that the polycrystalline material and the monocrystalline regions in its immediate vicinity become more highly conductive than the bulk of the monocrystalline material. As shown a collector electrode 113AC is applied to the region 106A and base and emitter electrodes are applied to diffused base and emitter regions 108A, 109A in the central N type collector region 103A<SP>1</SP>. Further high conductivity regions 136A may also be diffused adjacent the polycrystalline material 106A simultaneously with formation of the emitter region 109A. The structure illustrated also includes a PNP transistor Trp formed similarly to the transistor Trn, but having an N+ type isolation zone 103B separating it from the substrate 101. A high conductivity N+ type polycrystalline annular region 106B is also formed in the layer 106 above part of'the isolation zone 103B. Further P+ type polycrystalline isolation regions 106C are also provided between the two transistors. The electrodes in the embodiments are of Al.
Patent GB-873611-A (GB)
Title: A process for the manufacture of titanium dioxide
Inventor: WIGGINTON RAYMOND JAMES
IPC: C22B34/12
Filed: 1956-08-30
Abstract: In the production of titanium dioxide from a titanium ore containing more than 0.5% of chromium, by treatment with sulphuric acid to solubilize the titanium values and precipitating titanium dioxide by hydrolysis, the extent of the reaction between the sulphuric acid and the ore is so regulated that the quantity of chromium in the solution to be hydrolyzed is not greater than 0.5% of the weight of titanium in the solution.  The quantity of titanium dissolved preferably does not exceed 23% by weight of the titanium originally present in the ore.  The ores preferably employed do not contain more than 4% of chromium and contain at least 35% by weight of soluble titanium.  The sulphuric acid employed may be from 73 to 93% strength and the reaction time is normally 10 to 70 minutes with a maximum reaction temperature of p  220 DEG C.  According to Examples (1) an ilmenite ore containing 48% TiO2 and 0.85% Cr2O3 together with iron and minor amounts of manganese, vanadium, phosphorus and silica was ground and treated with 82% sulphuric acid at 160 DEG C.  After one hour the dry mass formed was discharged into cold water to produce a solution containing 83% of the original titanium and 8.6% of the original chromium.  The solution contained 0.18% of chromium based on the quantity of titanium in solution: titanium dioxide was subsequently precipitated by hydrolysis.  (5) An ore as in (1) above was slurried in oleum and fed continuously to a pug mill in admixture with water to give a sulphuric acid concentration of 80%.  The reaction temperature rose to 206 DEG C. and the mass was discharged after about 20 minutes at 160 DEG C. 92% of the titanium and 15.2% of the chromium originally present went into solution on leaching the reaction mass.  The solution was hydrolysed to precipitate titanium dioxide.
Patent GB-156945-A (GB)
Title: Improvements relating to electric meters
IPC: G01R11/56
Filed: 1919-10-29
Abstract: 156,945. Cheetham, G. A., and Metropolitan-Vickers Electrical Co., Ltd. Oct. 29, 1919. Electric and magnetic; energy-absorbing elements; permanently-applied. - In an electricity meter in which a retarding-torque is applied to the spindle by a weighted bell-crank lever, so that registration takes place only when the driving- torque exceeds this, electromagnetic means are operated by the bell-crank lever in its highest position to disconnect the lever from the spindle and allow it to return to its lowest position. The bell-crank lever 1, carrying an adjustable weight 2, is connected by a cord 19 to a pulley 15 loose on the spindle 14, which it drives by the engagement of a pin 16 on the pulley with pins 18, 18<1> on a ring 17 horizontally pivoted to the spindle. In the highest position of the bell-crank lever 1, a cap 5, screwed to an auxiliary arm 4 of the lever, operates contacts 6 causing energization of an electromagnet 7. An arm 12 carried by the armature 9 of this electromagnet thereupon engages the lower of the two pins 18, 18', tilts the ring 17, and allows the bell-crank lever to drop, rotnating the pulley 15 through half a revolution so that the pin 16 engages with the opposite pin on the ring 17. The contacts 6 may be arranged to close a normally-open circuit across the supply mains through the winding of the electromagnet 7 in series with a resistance and an inductance. Alternatively the electromagnet winding may be in series with the shunt coil of the meter and normally short-circuited by the contacts 6, which contacts are opened by the cap 5 in the highest position of the bell crank lever.
Patent GB-264601-A (GB)
Title: Improvements in hardening phenol-urea-formaldehyde products
IPC: C08L61/34
Filed: 1925-10-23
Abstract: 264,601. Potter, H. V., Crump, J. W., and Damard Lacquer Co., Ltd. Oct. 23,1925. Urea-aldehyde-phenol condensation products.- The intermediate products prepared by the condensation of ureas, aldehydes and phenols as described in Specification 256,711 are hardened by the addition of strong acids or acidic salts. Acids mentioned are sulphuric, nitric, hydrochloric, phosphoric and oxalic acids; and as salts, aniline hydrochloride, urea nitrate, ammonium chloride, phenylhydrazine hydrcchloride and ammonium sulphocyanide are referred to. The hardening is normally effected in the cold, though heat may also be applied. The rate of hardening depends upon the proportion of phenol to urea used in the preparation of the original syrup, whether an accelerator was employed and if so its type, the nature of the hardening agent and the amount employed. Examples are given of the influence of these factors upon the hardening nf syrups prepared from phenol, urea and formaldehyde. In all cases the hardening agent, which may be employed in quantities of up to 5 per cent of the reacting materials, is stirred into the syrup; at first the latter becomes hard and solid but is still fusible and soluble; finally it becomes infusible and insoluble, though it is slowly disintegrated by alkalies and strong acids.
Patent GB-260303-A (GB)
Title: Manufacture of products for dyeing or printing textile fibres and other materials
IPC: C09B9/00
Filed: 1926-10-25
Abstract: 260,303. Durand et Huguenin Soc. Anon., (Assignees of Farbenfabriken vorm. F. Bayer & Co.). Oct. 26, 1925, [Convention date]. Addition to 186,057. Leuco compounds of vat-dyes, esters of.-The chlorsulphonic acid used in the process of the parent Specification for the production of esterlike derivatives of leuco vat-dyes is replaced by pyrosulphuryl chloride Cl.SO2.O.SO2.Cl. When using the latter the presence of a small amount of water in the leuco compound is not detrimental. According to an example, leuco dibromindigo is treated with pyrosulphuryl chloride in presence of dimethylaniline and chlorobenzene: the reaction product is steam-distilled with sodium carbonate and the sodium salt of the ester salted out from the residue. The Specification as open to inspection under Sect. 91 (3) (a) refers also to the specific use of leuco compounds of 4 : 5<1>-7<1>-trichlorindigo, thioindigo. and dyestuffs of the anthraquinone series. This subject-matter does not appear in the Specification as accepted.
Patent GB-836428-A (GB)
Title: Improvements in or relating to sash-locks
IPC: E05C7/02
Filed: 1956-08-31
Abstract: 836,428. Sash locks. ATVIDABERGS BUTIKSINREDNINGAR A. B. Aug. 31, 1956 [Nov. 4, 1955], No. 26646/56. Class 44 A sash lock for coupled windows, comprises two lock portions 1, 14, the portion 1 carrying a displaceable plate 9 having a hole 15 which registers with a hole 12 in portion 1 in the unlatched position, the portion 14 having a stud 13 which is inserted in the registering holes 12, 15 and has a recess 16 engaged by plate 9 in the locked position, the plate 9 being moved by a lever 4 pivoted to the portion 1 and having a recess 11 in arm 4a engaging a projection 10 on plate 9. The end of plate 9 carrying projection 10 is bent toward arm 4a so that when the lever 4 is moved from the unlocked, Fig. 2, to the locked, Fig. 3, position, the plate resists the initial movement and aids the final movement; the axis of pin 8 by which the lever 4 is pivoted to lugs 2 of portion 1, is in a plane perpendicular to portion 1 and about mid-way between the end positions of projection 10.
Patent GB-852539-A (GB)
Title: Improvements in stop valves
IPC: F16K3/14
Filed: 1957-08-26
Abstract: 852,539. Valves. ZIMMERMANN & JANSEN G.m.b.H. Aug. 26, 1957 [Aug. 31, 1956], No. 26908/57. Class 135. A pair of slide plates 1, 2 of a stop valve are suspended on wedge members 3 by which they are pressed apart to engage their seatings when the valve is closed, the members 3 being accommodated in a recess 9 formed in the plates 1, 2 and having at their upper ends a clearance between surfaces 11, 12 to permit relative movement between them and the plates 1, 2. A ball 5 is interposed between the members 3. The valve is actuated by a spindle 8 having a crosspiece 7 of polygonal crosssection engaging similarly shaped holes in the members 3.
Patent GB-1497276-A (GB)
Title: Dicyanobutene
IPC: C07C253/10
Filed: 1975-06-16
Abstract: 1497276 Dicyano - butene IMPERIAL CHEMICAL INDUSTRIES Ltd 16 June 1975 [18 June 1974] 26918/74 Heading C2C Dicyano-butene is obtained by reacting butadiene with hydrogen cyanide and oxygen or a molecular-oxygen containing gas in the presence of a C 1-6  aliphatic carboxylic acid and a copper catalyst.
Patent GB-247151-A (GB)
Title: An improved fixing device for the magnet of an electricity meter
IPC: G01R11/10
Filed: 1925-10-27
Abstract: 247,151. Soc. Genevoise d'Instruments de Physique. Feb. 3, 1925, [Convention date]. Electric and magnetic.- The brake magnet 1 of an electricity meter is fixed bv a bridge-piece 3 carrying the screws 7 for angular adjustment of the magnet. One of the branches of the bridgepiece forms a clamping nut for the fixing screw 2 passing through the magnet and the main support 5, and the other branch is pressed against the magnet by three set-screws 4 which enable the height of the magnet relatively to support 5 to be adjusted and engage. in cavities in the bridge-piece. By means of these cavities, the bridge piece can be removed and replaced in its exact original position. The magnet is introduced by force into the, bridgepiece, which is slightly elastic.
Patent GB-502979-A (GB)
Title: Improvements in and relating to envelopes
IPC: B65D27/16
Filed: 1937-10-05
Abstract: 502,979. Envelopes. PIRIE APPLETON & CO., Ltd., and WOLFF, H. Oct. 5, 1937, No. 26935. [Class 146 (ii)] Unauthorized access to the interior of a closed self-adhesive envelope is prevented by an elongated strip 9 additional to the protective flap 8 and secured at its ends to the side flaps 5. The flap 8 is formed by the upper part of the back 4 and normally overlies the adhesive 7. In a modification the flap 8 and strip 9 are formed in one piece and is either secured to the wall 4 or forms a continuation thereof. In a further modification the strip 9 is a continuation of the wall 4 and the flap 8 is separate from but secured to the wall 4.
Patent GB-530161-A (GB)
Title: Lug and slot attachment for handles
IPC: A47G21/06
Filed: 1939-10-02
Abstract: 530,161. Knives ; forks ; spoons. BELK, W. P. Oct. 2, 1939, No. 26974. [Classes 30 and 128] A rigid T-headed lug A1 on the handle of a spoon A engages slots B1, Cl on the handles of a fork B and knife C to hold them in a compact combination when not is use.
Patent GB-260765-A (GB)
Title: Improvements in or relating to power hack-saws
IPC: B23D51/20
Filed: 1925-10-28
Abstract: 260,765. Heaton, W. Oct. 28, 1925. Reciprocating-saw machines.-A hack saw is raised on its' return stroke by means of a pivoted quadrant 10 connected through a spring- mounted lever 13 to a rod 15 attached to the pivoted saw guide 4. The quadrant is alternately raised and released by a shoe 26 reciprocated by means of an eccentric 28 and pivoted at 18, below the pivot of the quadrant, to a spring-mounted arm 17, which may yield if the shoe binds on the quadrant. 'The part d, e of the periphery of the quadrant is made eccentric to its pivot, so as to reduce the lift towards the completion of the cut. A cushioning spring is mounted at 16.
Patent GB-1514088-A (GB)
Title: Lamp unit
IPC: G03B15/04
Filed: 1976-06-29
Abstract: 1514088 Flash-lamp units PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 29 June 1976 [2 July 1975] 27024/76 Heading G2X A flash-lamp unit has a reflector with at least one lug which can be elastically bent out of the reflector surface to leave an aperture sufficiently large for the lamp to pass through. The reflector of Fig. 3, has a slot 47 which widens at its ends 48, 49 and which is bounded by two resilient lugs 43, 45. To assemble the lamp and reflector the lamp, which is secured to a support 65, is pushed through the reflector, the lugs then springing back to their original position. The lugs may be elastic, or alternatively they are stiff and are connected to the rest of the reflector by an elastic portion. One lug only may be provided and the initial aperture 47 is not essential. A plurality of reflectors in one foil may be used in forming a multiple flash array.
Patent GB-1506189-A (GB)
Title: Simultaneous marine seismic surveying at different depths of investigation
IPC: G01V1/24
Filed: 1975-06-26
Abstract: 1506189 Marine seismic exploration TEXACO DEVELOPMENT CORP 26 June 1975 [18 July 1974] 27051/75 Heading G1G In principle, a marine seismic exploration method consists in separately recording high, medium and low frequency acoustic reflexions from strata below the sea bed at correspondingly increasing depths, the reflexions resulting from a controlled transmitting pulse. As claimed a method for making a simultaneous survey at three different maximum depths of investigation below the sea bed comprises the steps of transmitting a controlled sharp-peaked impulse into a body of water, receiving reflected acoustic energy in at least three different frequency bands and generating corresponding signals, filtering said signals into at least three bands and recording the filtered signals simultaneously as a function of time. As described, an air gun 13 produces a controlled impulse, echos being received by hydrophones in a streamer cable 18 having a short 15, medium 16 and long 17 section mainly responsive to 100- 250Hz, 30-100Hz and 10-30Hz bands respectively. The received response signals are filtered clean of other frequencies and are then fed to recorders, Fig. 3 (not shown). In an alternative arrangement, Fig. 2 (not shown), the sections 15, 16, 17 are separated.
Patent GB-637599-A (GB)
Title: Improvements in transport containers or boxes for textile materials
IPC: B65D25/10
Filed: 1947-10-08
Abstract: 637,599. Yarn package containers. BRITISH CELANESE, Ltd. Oct. 8, 1947, No. 27068. Convention date, Oct. 9, 1946. [Class 120 (iii)] [ Also in Group XVII] A box or container has yarn package supports 13 pivotally mounted in depressions 12 in the inside wall so that in one extreme position the supports are substantially at right angles to the wall and in the other they lie within the depressions. As shown, the box comprises two hingedly connected sections, ribbed for strengthening purposes and having checks 21 for holding the sections apart. The supports consist of substantially triangular plates. The Specification as open to inspection under Sect. 91 also describes a container with fixed yarn package supports. This subject-matter does not appear in the Specification as accepted.
Patent GB-1338276-A (GB)
Title: Synchronous modulator-demodulators
IPC: H03F3/387
Filed: 1971-04-19
Abstract: 1338276 Transistor amplifying circuits; pulse modulation circuits TRANCHANT ELECTRONIQUE SA 19 April 1971 [24 June 1970] 27073/71 Headings H3T and H4L In a chopper type amplifier in which the earths of the input and output circuits are isolated from each other, the input V e  is applied to transformer primary T31 over the seriesconnected emitter-collector paths of transistors Q31-Q34 which are driven conductive by means of a square waveform applied to the bases over transformer secondaries L31,L33 and series resistors R31-R34. The output from transformer secondary T32 is demodulated by means of a synchronously gated demodulator comprising the series-connected emitter-collector paths of transistors Q35-Q38 which are driven by means of square waves applied to the bases over transformer secondaries L35, L37 and series resistors R35-R38. The output is smoothed by means of a capacitor C40 shunting the load R40. Distortion may be corrected by non-linear means such as the impedance variation of a semiconductor element. The Specification also refers to a known type of modulator comprising four transistors giving full-wave modulation (Fig. 1, not shown) and to a second known type of modulator with transistors connected in series (Fig. 2, not shown).
Patent GB-520232-A (GB)
Title: A device for matching shades
IPC: G01J3/46
Filed: 1938-09-17
Abstract: 520,232. Matching colours. ARISTOC, Ltd., SLATER J. E., and DEIGHTON, S. H. Sept. 17, 1938, No.' 27178. [Class 97 (i)] Apparatus for matching colours comprises two relatively movable parts each carrying a plurality of colours or indications thereof, means movable relatively to one part to indicate a selected colour, and means whereby movement of the indicator causes a matching colour on the other part to be displayed or indicated, the two parts being movable one over the other, and the front or upper one being provided with a display aperture to which the matching colour is brought by the relative movement. As shown, colour indications 17 on a panel 10a having a display aperture 11 are selected by a rotatable pointer 16 on a spindle secured to a disc 12 bearing colours which, when visible through the aperture 11, respectively match the indicated colour 17. The rotatable disc 12, Fig. 3, may have a ball catch 22 and an upstanding boss 12<SP>1</SP> from which extend match strips 19 securing cardboard or other sectors 20 each provided with two or more windows 30 displaying pieces of stocking fabric of different transparencies, preferably over a padding of cotton wool etc.; the members 17 may be covered with dress fabrics. A switch 29 may selectively control an ordinary electric lamp 27 and a daylight lamp 28, both in a cylindrical hood 25 having a transparent or translucent panel 26 and surmounting an arcuate rear wall 24.
Patent GB-766599-A (GB)
Title: Improvements in or relating to chain connectors and methods of forging them
IPC: B65G43/06
Filed: 1954-09-20
Abstract: 766,599. Shackles. KETTLER, O. Sept. 20, 1954 [Sept. 21, 1953], No. 27193/54. Class 24. [Also in Groups XXII and XXX] A shackle for a scraper conveyer is rnanufactured by a forging method such that the forge seams do not lie in the median plane of the finished shackle. As shown, the shackle 10 is thickened at 11 to provide a guide projection which slides along the conveyer channel and prevents wear on the conveyer chains. The arms 12 and 13 extend parallel to one another and provide a gap through which the chain links 14 and 15 can be inserted. A scraper member 24 is secured to the shackle 10 by a bolt 16 and nut 19, the bolt-head 17 and nut 19 being formed with conical shaped surfaces which engage correspondingly shaped surfaces 30 and 31 on the arms 12 and 13. The facing surfaces 21 and 22 of the arms 12 and 13 (Fig. 3) are wedge-shaped and fit into grooves in the sides of the scraper member 24. The shackle is produced by a method comprising at least two successive stages. In the first stage a blank cut to length from a rolled bar is forged in a die comprising parts which are moved towards one another in the plane of the finished shackle, so that the forge seams 27 extend along the upper and lower faces of the blank. The substantially straight blank is then bent to the desired final form in one or more further stages. In the finished shackle the forge seams 27 are readily accessible for removing burrs and do not pass through the points 28 and 29 at which the maximum stresses occur. Furthermore, the grain of the material follows the curves of the shackle and is not interrupted.
Patent GB-889787-A (GB)
Title: Improvements relating to beheading of fish
IPC: A22C25/00
Filed: 1960-08-05
Abstract: 889,787. Fish beheading. BAADER, R. G. T., [trading as NORDISCHER MASCHINENBAU R. BAADER]. Aug. 5, 1960 [Aug. 7, 1959], No. 27291/60. Class 28 (2). Fish are beheaded by a row of cutters inclined at an angle, the fish being at first freely suspended tail downwards by the gill covers or pectoral fins, the head being then tilted backwards and fed past the cutters in that position so as to leave a wedge-shaped end on the body of the fish. The fish is supported by its gills or pectoral fins on spaced guides 12 which are connected together and are under the influence of a spring 23 so that they can adjust themselves according to the size of the fish. The guides may be provided with fin-erectors for use when the fish is supported by the fins. The head of the fish is received between plates 30, also spring-biased to accommodate different sizes of fish, by which the fish is guided between belts 38 which engage its sides and feed it forward. The head then engages a pivoted plate 50, normally locked in an inclined position, which acts to tilt the head backwards. In this position, it is gripped by belts 69 having projections 70 and is carried forward first releasing the plate 50 and then passing between the pair of cutting discs 17.