baber/WOPTO huggingface dataset:
Patent GB-1008792-A (GB)
Title: Forced flow, once through vapour generators
IPC: F22G5/02
Filed: 1962-07-27
Abstract: 1,008,792. Forced flow steam boilers; regulating steam temperature. SULZER FRERES S.A. July 27, 1962 [July 27, 1961], No. 29026/ 62. Heading F4A. In a forced-flow, once-through steam boiler operating with reheat and at subcritical or supercritical pressure and having two independently-fired furnaces the outer walls of which are lined with parallel-connected heat exchange tubes and which are separated by a tubulous partition of parallel-connected heat exchange tubes, the furnaces discharging gases into a common pass, the wall lining tubes and partition tubes and further heat exchange surfaces in the gas pass are serially connected for flow of the working medium and the or each reheater is exposed primarily to the gases produced in one of the two furnaces. As shown in Fig. 1 the boiler has a pair of furnaces 12, 14 respectively fired by tangential tilting burners 16, 18 and discharging gases into a common gas pass 20. Water is supplied by a pump 22 through a regulator valve 24 to an economizer 26 in the gas pass. From the economizer it flows through a mixing vessel 30, a recirculating pump 32 and a lower header 34 to enter the tubes 38 lining the outer walls of the furnaces. The tubes are diametrically finned and welded together. Steam or steam-water mixture flows from the tubes into a header 40 and thence through lines 42 and a header 44 to enter the partition tubes 48 which may also be welded together or may be contiguous and unwelded. From these tubes steam flows serially through superheaters 54, 58 to a turbine 62. First and second stage reheaters 66, 72 are disposed in the gas pass 20 so as to be substantially wholly in the flow of gases from the furnaces 12 and 14 respectively. Reheat temperature is controlled by independently adjusting burner tilt in or gas recirculation to the two furnaces and the range of control may be extended by differentially firing the furnaces. When starting or at low loads when the flow velocity in the wall lining tubes 38 and partition tubes 48 is below a critical value, a recirculation of working medium through these tubes is superimposed on the through-flow system by starting the pump 32. In a modification, Fig. 9 (not shown) there is a single stage of reheat, the reheater being aligned with the gas flow from the furnace 14. In this installation the major portion of the superheater is aligned with the gas flow from the furnace 12.
Patent GB-429021-A (GB)
Title: Improvements in or relating to zinc alloys
IPC: C22C18/00
Filed: 1933-10-21
Abstract: An alloy contains at least 99 per cent of zinc, ,05 to ,60 per cent of nickel or cobalt or both and a small proportion of silicon not greater than that required to form a silicide or silicides with the nickel or cobalt or both.  The alloy may also contain not more than ,9 per cent of cadmium, aluminium or lead. A zinc-nickel-silicon alloy may be prepared from a pre-alloy comprising 20 per cent of silicon and 80 per cent of nickel, such pre-alloy being subdivided by pouring into water and dissolved in zinc to form a secondary pre-alloy containing about 5 per cent of nickel: the latter pre-alloy is then added to molten zinc.  The alloy is preferably formed by melting in an induction furnace. After casting, the alloy may be cold worked or hot worked at or above 350 DEG  C.: thereafter, heating to 350-380 DEG  C. does not seriously affect the grain size.  The alloy may be used for engraving or lithographic sheets, for extrusion into rods or for rolling or drawing into wire.  According to the Provisional Specification, up to 5 per cent of nickel may be comprised in the alloy, the silicon content being correspondingly increased: also in an alloy containing nickel and aluminium, the content of the latter should not exceed one half that of the former. After working, the alloy may be heated to 350-400 DEG  C.
Patent GB-433508-A (GB)
Title: Improvements relating to electrolysis furnaces for the production of aluminium
IPC: C25C3/12
Filed: 1934-10-11
Abstract: 433,508. Electrolytic furnaces. SIEMENS-PLANIAWERKE AKT.-GES. FUR KOHLEFABRIKATE, 128, Herzbergstrasse, Lichtenberg, Berlin. Oct. 11, 1934, No. 29183. Convention date, Oct. 24, 1933. [Class 39 (iii)] In a furnace for producing aluminium, contact surfaces are machined on the electrodes 2 during the feeding of the latter by means of a cutting edge 11 of hard metal, such as a tungsten-cobalt alloy, provided on the contact plates 3. The plates are of soft metal and are pressed against the electrodes by crossbars 4 suspended on members 6 carried by a horizontally movable frame 7 supported on pivoted links 10. The electrodes may be forced downwards by hand wheels 8. The frame 7 is oscillated periodically by hand, by means of the hand wheel 9, or continuously by an electric drive.
Patent GB-744874-A (GB)
Title: Improvements relating to direct current track circuits for railway signalling systems
IPC: B61L1/18
Filed: 1953-10-23
Abstract: 744,874. Railway signalling track circuits. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., DUCKITT, H., and TILLOTSON, P. July 29, 1954 [Oct. 23, 1953], No. 29298/53. Class 105. In a D.C. railway track relay circuit on a track having one rail in insulated sections and the other continuous as a return conductor for A.C. traction currents and being fed from a D.C. source in series with impedance, said source being trickle-charged from an A.C. source through a full-wave bridge-connected rectifier, means are provided for preventing, when the D.C. source is disconnected, the development across the output terminals of the rectifier of an A.C. voltage which is at any instant greater than the alternating voltage of the A.C. source and is due to A.C. circulating currents through the feed circuit caused by traction currents in the return rail. As shown, an impedance in the form of a relay 13 is connected across the output terminals of the rectifier 10 which trickle-charges the cell or cells 8 through a variable resistance 9 with rectified current from an A.C. source connected to the primary winding of transformer 11, the relay having such impedance that the voltage developed across it by.the A.C. circulating currents due to traction currents in the continuous rail 4, when the source 8 is disconnected, is, with the maximum possible traction current flowing, not greater than the voltage applied to the rectifier by the transformer 11 and a front contact 14 of the relay 13 is included between the rectifier 10 and a track rail, e.g. 4, so that release of the relay, as when the supply to the transformer 11 fails, disconnects the rectifier 10 from the track rails. The impedance across the rectifier 10 may be the primary winding of an auxiliary current transformer in series with the D.C. source 8 and fed from the transformer 11, the secondary winding of the auxiliary transformer feeding through a rectifier the relay 13 with its front contact 14 connected between the rectifier 10 and one of the rails. In a modification the primary winding of the auxiliary transformer may be connected in the trickle charging circuit of the source 8 utilizing the ripple component of the charging current to excite the relay winding. The auxiliary transformer and its associated rectifier may be replaced by an alternating current relay.
Patent GB-481818-A (GB)
Title: Improvements in standard and table lamps
IPC: F21S6/00
Filed: 1936-10-28
Abstract: 481,818. Lamp standards. PENDRY, L. C. Oct. 28, 1936, No. 29306. [Class 75 (iii)] A tubular standard is provided with a tubular translucent or semiopaque insert e containing a low-wattage electric lamp h, the ends of the insert being screwed on the adjacent ends of the parts b, c of the standard or a threaded member f thereon. The lamp h is preferably connected in parallel with the main lamp in a holder d, which may include a switch and means for holding a sliade. The member f is provided with vent holes. The member e may be made of glass, a urea product, cellulose acetate, casein or other plastic material and may be ornamented as by embossed figures or contour or silhouette figures or designs.
Patent GB-876794-A (GB)
Title: Improvements in circular knitting machines of the superimposed needle cylinder type
Inventor: DEANS FREDERICK EDWARD
IPC: D04B9/10
Filed: 1956-09-26
Abstract: 876,794. Knitting-machines. BENTLEY ENGINEERING CO. Ltd. Sept. 26, 1957 [Sept. 26, 1956], No. 29407/56. Addition to 742,871. Class 74 (2). The bottom cam box 4, 10 for the sliders and jacks of a superposed cylinder machine is directly or indirectly supported from the bottom plate 5 supporting the bottom cylinder. The cam box is suitably spaced from the bottom plate and its support is such as to permit patterning mechanism 9 to act on the jacks. The support may be a flange 13 formed on the cylinder which engages on a groove formed in the cam box to support the cam box. Adjustable arms 20, 21, 22 secured to the cam box and vertical pillars 23, 24, 25 anchor and centralize the cam box with respect to the needle cylinder. Alternatively the cam box may be supported by arms extending upwardly from and secured to the base plate 5.
Patent GB-244904-A (GB)
Title: New or improved closure for steam pressure boilers for vulcanizing and other purposes
IPC: A61C13/14
Filed: 1924-12-08
Abstract: 244,904. Boyle, H. H. Dec. 8, 1924. Doors and covers. - The cover plate B of a steam pressure boiler for vulcanizing and other purposes is secured to the boiler by partial rotation in a hinged arm D, and a closure plate J carried by the cover plate is pressed upon its seating by a clamping screw K in the cover plate. A. spring N between the cover plate and a head O on the spindle of the closure plate raises the closure plate from its seating when the pressure of the clamping screw is relaxed. The cover plate may have an interrupted flange or screw thread adapted to engage with a corresponding flange or screw thread on the boiler.
Patent GB-1256209-A (GB)
Title: Ammoniacal etching solution
IPC: C23F1/32
Filed: 1970-06-18
Abstract: 1,256,209. Etching. KENVERT INTERNATIONAL CORP. 18 June, 1970 [18 June, 1969; 6 May, 1970], No. 29582/70. Heading B6J. Copper, zinc, cadmium, brass or aluminium are etched with a composition comprising (1) 0À5-2À0 gram moles per litre of a haloacetic acid constituent containing the radical CXnH(3-n)COO-, in which X is chlorine, bromine or iodine and n is 1, 2 or 3, (2) 2À5-10À0 gram moles per litre of an ammoniacal constituent, and (3) a constituent providing ions of iodine, bromine or a noble metal or a mixture of such ions. (1) The acid may be trichloroacetic acid, dichloroacetic acid or dibromoacetic acid. (2) The ammoniacal constituent may be ammonium chloride or ammonium hydroxide. (3) The noble metal may be mercury, palladium, gold or silver. Examples of the ion-providing constituent are potassium iodide, sodium bromide, mercuric acid and potassium iodide, and silver nitrate. The pH of the composition is at least 7À5, preferably 8-11, and may be adjusted by adding sodium hydroxide or hydrochloric acid. The composition may also contain (4) 0À1-0À6 gram ion per litre of cupric ion, provided by cupric chloride, copper sulphate or copper acetate, and/or 0À2-3À0 gram ion per litre of chloride ion, provided by cupric chloride, ammonium chloride, sodium chloride or potassium chloride, and (5) 0À05-0À5 gram moles per litre of phosphate radical, provided by trisodium phosphate or phosphoric acid. The composition can be regenerated by adding more of the same composition together with ammonium chloride. The metal is etched at a temperature of at least 100‹ F., preferably 110-130‹ F.
Patent GB-519279-A (GB)
Title: Improvements in and relating to bridles for animals
IPC: B68B1/04
Filed: 1938-10-14
Abstract: 519,279. Bridles. ORAM, S. Oct. 14, 1938, No. 29629. [Class 62] A bridle comprises a nose band 1, Fig. 1, which encircles the animal's head above the nostrils and is provided at each side with a guide member 8 through which slides a curbing rein 11, the ends of the rein being attached to a chain or like curb 12 disposed between the guide members and adapted to lie under the animal's lower jaw, A flexible reinforcement or tension member 4, Fig. 3, composed of metal wires, a chain or other flexible non-elastic material is housed within or attached to the front of the band 1 and is connected at its ends to spring- closed hooks 5 to which the guide members 8 are attached. Each guide member comprises a loop with a roller 9 through which the round part 10 of the curbing rein is passed. An adjustable washer or clamp 13, which may be a rubber ring, is fitted to the part 10 to limit the extent to which the rein will fall through the guide member 8. The curbing attachment can be removed when desired by detaching the guide members 8 from the spring-closed hooks 5. The bridle is used in conjunction with ordinary bridles and bits.
Patent GB-396362-A (GB)
Title: Improvements in and relating to methods of making rubber coating mixtures
IPC: C08L7/02
Filed: 1931-10-27
Abstract: Water-soluble or insoluble oils, such as "vaseline oil," castor oil, paraffin oil, "textile oil," are added to rubber compositions containing water.  The oils are stated to emulsify the water and prevent the shrinkage of the composition when used for coating purposes.
Patent GB-204934-A (GB)
Title: Improvements in color harmony charts
IPC: G01J3/52
Filed: 1922-10-31
Abstract: 204,934. Mitchell, J. L. Oct. 31, 1922. Colour scales. - Relates to colour-harmony charts of the kind in which a member to which a variety of colours is applied is arranged beneath a relatively rotatable apertured member. The rotatable colour disc 12 is divided into a number of concentric rings each of which is divided into a number of small uniformly-coloured areas. The innermost ring has applied to it the colours of the spectrum, the next two rings have tints of the spectrum colours and the remaining rings have applied to them subdued tints and shades of the diametrically-opposite spectrum colours. The stationary cover 13 is provided with a number of apertures 30 - - 36 each exposing a single colour and so arranged that colours appearing through diametrically-disposed apertures are complementary whilst those appearing through circumferentially disposed apertures are analogous. The disc 12 is also marked with a number of indicating characters 40 which are visible singly through an aperture 41. Specifications 10668/11 and 167,024 are referred to.
Patent GB-739723-A (GB)
Title: Improvements in or relating to a knitting machine with a device for temporarily securing the needles in their position during a working operation
IPC: D04B15/82
Filed: 1952-11-25
Abstract: 739,723. Knitting-machines. DUBIED & CIE SOC. ANON., E. Nov. 25, 1952 [Jan. 25, 1952], No. 29865/52. Class 74 (2). In a machine having long and short butted needles 1, 2 and raising and lowering cams 15, 16 adjustable either to a position in which they engage all the butts or only the long butts, each needle 1, 2 is provided with a shoulder 4 and a recess 3 and a guard member 19 is mounted upon the cam slide 7 to engage either the recess 3, or as shown in Fig. 3 the shoulder 4, to prevent unwanted longitudinal movement of the needles as they approach the clearing cam 12. The shoulder and recess may be arranged below the knitting butt 2<SP>1</SP>.
Patent GB-1504259-A (GB)
Title: Immunological control of fertility
IPC: A61K39/00
Filed: 1976-07-19
Abstract: 1504259 The immunological control of fertility MERCK & CO Inc 19 July 1976 29972/76 Heading ASB [Also in Division C3] Vaccines for the immunological control of fertility in the female mammal comprise solubilized zona pellucida prepared by heating zona pellucida at from 65 to 100‹C and a carrier or diluent. Antisera compositions comprise the antibody, anti-solubilized zona pellucida together with a carrier or diluent. The vaccines and antisera compositions may be administered by injection.
Patent GB-1209321-A (GB)
Title: Process for the production of epoxides
Inventor: HAYDEN PERCY
IPC: C07D301/06
Filed: 1967-06-29
Abstract: 1,209,321. Epoxides. IMPERIAL CHEMICAL INDUSTRIES Ltd. 17 June, 1968 [29 June, 1967], No. 30023/67. Heading C2C. A process for the production of epoxides comprises contacting an olefinic compound in a liquid phase with oxygen, a catalyst which comprises Cr, Ti, Zr, Hf, V, Nb, Ta, Mo, W, Re, Th or U or a compound thereof and either (a) hydrogen and a diketone containing the functional groups: -CO-CO- or -CO-(X)-CO- in which X represents a -CHR- or -CR = CR- group in which R is a phenyl or alkoxyphenyl group, an alkyl or cycloalkyl group having 1 to 6 carbon atoms, or hydrogen or X represents a group in which R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> are hydrogen, alkyl, cycloalkyl or alkoxy groups or (b) a reduced form of such a diketone in which at least one of the CO groups has been reduced to a C-OH group. Suitable olefinic compounds are ethylene, propylene, a butene, cyclohexene, butadiene, styrene, allyl alcohol, methyl vinyl ketone and allyl and vinyl acetate. The metal catalyst is preferably in the form of a compound soluble in the liquid phase, e.g. as a carbonyl, naphthenate or stearate or the metal catalyst and diketone may be supplied together as a complex. Suitable diketones include benzoquinone, anthraquinone, duraquinone, 2-ethyl or 2-tert.-butyl anthraquinone and acetylacetone. The preparation of 1,2-epoxy octane is described using chromium acetylacetonate and using molybdenum carbonyl and a reduced form of 2-ethyl anthraquinone.
Patent GB-391492-A (GB)
Title: Improvement in knitting machines and methods of knitting
IPC: D04B9/06
Filed: 1931-10-30
Abstract: 391,492. Knitting-machines. HEMPHILL CO., Central Falls, Rhode Island, U.S.A.-(Assignees of Lawson, R. H., 55, Cooke Street, and Smith, W. L. ; 122, Englewood Avenue, both in Pawtucket, Rhode Island, U.S.A.) Oct. 30, 1931, No. 30088. Convention date, Nov. 4, 1930. [Class 74 (ii).] A circular rib machine of the needle cylinder and dial type for knitting a stocking &c. having a plain portion, e.g. the sole 5, and an adjacent ribbed portion, e.g. the instep 4, and in which an additional yarn is fed to the cylinder needles only for reinforcing the sole, is provided with means for receiving each of the floats of the additional yarn in turn and for severing the float near one of its ends. The yarn trapping and severing devices 83, 84 are mounted upon the upper face of the dial cap 18, and the movable blade or plate 83 is actuated by connections 74, 68, 66, 59 from a cam 62 which rotates once for each revolution of the needle cylinder. The cam-engaging lever 49, mounted in a forked lower end of the link 59, is held out of engagement with the cant 62, and the severing and trapping device is held closed, by links 32, 35 controlled by projections 27, 28 on a pattern drum 25. The splicing or reinforcing yarn feeder 90 is raised and lowered once per revolution of the needle cylinder by links 97, 101 and a cam 105 on the shaft carrying the cam 62 ; steps 91, 92 are provided on the pattern drum 25, and when a finger 94 carried by a link 96 moves off either of the steps 91, 92 the feeder 90 is lowered to be operated by the cam 105. A brush 111, the bristles of which project downwardly from the dial cam cap, engages a severed float and forces it below the dial needles and to a position within the cylinder needle circle. The needle dial preferably has a flange which substantially fills the space separating the adjacent faces of the dial cap and dial. In forming a stocking &c. knitting is preferably started at the toe 2, and the heel 6 preferably does not extend to the first rib wale of the instep, but provides intervening plain wales 12.
Patent GB-405418-A (GB)
Title: An improvement in or relating to sliding roofs of motor cars
IPC: B60J7/043
Filed: 1932-10-27
Abstract: 405,418. Vehicle opening-tops. NORRIS, S., 9, Hovelands, Taunton, Somerset. Oct. 27, 1932, Nos. 30097 and 30859. [Classes 103 (ii) and 108 (i).] Road vehicle bodies are provided with a rear extension whereby the sliding panels normally closing the roof can be slid to the rear so as to leave the roof clear and whereby the rear extension may be used for accommodation of passengers or luggage. As shown in Fig. 1 the sliding roof panel XY may be slid to the position marked X<1> Y<1> leaving the entire roof open and the rear extension D is provided with seats G for passengers, a rear door E being provided if desired for the admission of luggage and a rear side door for passengers. The sliding panel may be in two detachable parts whereby that part over the driver may be left in position if desired and windows are provided in the panel to register with the windows A, B. A recess C may be provided at the back to receive the panel and also to hold a spare wheel. Fig. 5 shows a skeleton extension to an ordinary saloon body, the frame members providing guides for the panel. A container M, which may be opened, contains and protects the seats G.
Patent GB-1222921-A (GB)
Title: Plugging compound collector
IPC: G21C19/31
Filed: 1969-06-13
Abstract: 1,222,921. Reactors. UNITED STATES ATOMIC ENERGY COMMISSION. 13 June, 1969 [2 July, 1968], No. 30199/69. Heading G6C. In a " plugging meter " type of liquid metal impurity content monitor, in the sodium coolant circuit of a fast reactor, the known relationship between temperature and impurity solubility is employed. Sodium flows downwards into the inlet 28 of monitor 10, into the flutes 27 in the collector 13 and upwards into the outlet 14. The collector is cooled by the external current of air over the nose piece 12, and the sodium in the flutes is cooled to a temperature which promotes precipitation of the impurity on the walls of 27. The thermocouple 15 measures the sodium temperature. In an alternative form, the collector 13 is formed of circular discs provided with radial flutes or grooves.
Patent GB-648096-A (GB)
Title: Improvements relating to drums for mine winding engines and the like
IPC: B66D1/30
Filed: 1948-11-22
Abstract: 648,096. Winding drums. WILD & CO., Ltd., M. B., and BATTY, A. W. H. Nov. 22, 1948, No. 30255 [Glass 99(ii)] A winding drum comprises a central portion made of cast iron or steel, and a peripheral portion and a barrel made of light alloy. The central portion comprises bosses a and spokes b. Peripheral rings d are bolted together and to the spokes. Radial driving pins g, Fig. 3, also connect the rings and spokes. The pins may be located transversely. The barrel j is riveted to the rings d, one of which may be provided with a brake ring w.
Patent GB-432621-A (GB)
Title: Improvements in or relating to suitcases and travelling trunks
IPC: A47K10/28
Filed: 1934-10-23
Abstract: 432,621. Suit cases, trunks, &c. MOSS, H., 159, Balls Pond Road, Islington. London. Oct. 23, 1934, No. 30409. [Class 18] The body or lid of a suit case, trunk, or like is formed by bending a ply-wood member 2 to the form of two end pieces 1, also of ply-wood, and stitching the member 2 to the pieces 1 completely along the edges thereof. A1- ternatively both body and lid may be so formed. The member 2 may be steam-bent or heatbent.