baber/WOPTO huggingface dataset:
Patent GB-972313-A (GB)
Title: Feed device on backward extrusion presses
IPC: B21C33/00
Filed: 1961-12-07
Abstract: 972,313. Extruding. L. SCHULER A.G. Dec. 7, 1961 [Jan. 11, 1961], No. 43852/61. Heading B3P. A horizontal backward extrusion press has means 5, 6 for feeding blanks 4 thereto and holding means 10, 11 for locating the blanks in front of the extrusion die 1, the holding means being moved out of the path of the backwardly extruding material to prevent scoring thereof. The blanks fall by gravity along guide rails 5, 6, until stopped by one or other of pins 37, 38 on a spring-loaded pivoted lever 35 which releases the blanks individually to fall against shoulders 14, 15 respectively on a fixed guide member-9 and a pivoted guide member 8. A lever 20 pivoted at 21 and loaded by a spring 30 carries an end pawl 32 pivoted thereto at 31 and biased to an operative position by spring 33. When the lever 20 is moved clockwise by a cam 28 acting through bellcrank 23, the pawl 32 engages the blank and pushes it into jaws 10, 11 of the guide members. Here it is held off-centre of the die 1 but can be pushed therein by the advancing punch 49, Fig. 2 (not shown). During this inserting movement the guide member 8 is moved anticlockwise about its pivot 16 by the punch and during actual extrusion the jaw 11 is moved out of the path of the backwardly flowing material by a rod 44 actuated by the punch and which engages a roller 43 on member 8. During the return movement of lever 20 an adjustable stop 42 thereon actuates the lever 35 to release another blank. A contact 56 stops the press if a blank jams in the die. In another embodiment, Fig. 4, the blanks fall down guides 65, 66 and are moved into alignment with the die by an oscillating lever 68 actuated by cam 73. Here it is held between surface 76 and member 77 whilst being pushed into the die by the punch. During extrusion the lever 68 is retracted and the member 77 is moved upwardly by a rod operated by the advancing punch and engaging roller 43.
Patent GB-1478709-A (GB)
Title: Synchronising a digital data receiver
IPC: H04L25/03
Filed: 1974-10-11
Abstract: 1478709 Data receiver synchronization; telegraphy INTERNATIONAL BUSINESS MACHINES CORP 11 Oct 1974 [6 Nov 1973] 44119/74 Headings H4R and H4P In a digital data receiver for signals from a channel producing intersymbol interference the synchronization of the receiver is controlled in response to an error signal derived by correlation of received unequalized signals and information derived from the received equalized signals. As described the transmission mode is multi-level differential phase modulation in which the information is transmitted as amplitude p and phase # of the transmitted signal. The received signal is split into quadrature related component x; and #x i  and the components fed to respective transversal equalizers 8 and 9, and also to respective delay circuits 10 and 12. The equalizers are preferably of the type of Specification 1,459,465, having a total delay length 2NT with a main tap at NT. Delay circuits 10 and 12 have a delay 0 = (NT-t) and delay circuits 11 and 12 have delays 2t to provide samples at the points P 1  and P 2 , P 3  and P 4  which are equally spaced Œt about the nominal main tap delay of the transversal equalizer, which should correspond to the maximum pulse amplitude at the equalizer sampling instant. The amplitude of the equalized pulse at the sampling points Œt about the main tap sampling point is determined by correlation of the samples at P 1 , P 2 , P 3 , and P 4  with the values cos #‹/P‹ and sin #‹/P‹ determined from the signal at the output of the equalizer 8, 9. Fig. 2 shows the multipliers 14 to 17 combining circuits 18, 21, integrators 19, 22, squarers 20, 22 and combiner 24 used in the derivation of the pulse amplitude d 1  relevant to the samples P 1  and P 3 , i.e. time (T-t). A similar circuit (not shown) derives the amplitude d 2  relevant to the samples P 2  and P 4  i.e. time (T + t) The difference between d 1  and d 2  is determined in 25 and used to modify the contents of a counter 27, via calibrating unit 26, to alter the phase of the clock signal used to sample the input signals x i ‹ and #x i .
Patent GB-1120036-A (GB)
Title: Improved fabrics
Inventor: MANOCK GEOFFREY WINDLE
IPC: D06B13/00
Filed: 1964-12-29
Abstract: Pilling is eliminated or reduced by at least 50% in woven or knitted fabrics made from spun yarns containing high tenacity synthetic fibres which cause pilling, by treating the fabric with at least one ultrasonic beam to attach at least some of the synthetic fibres to the same or to other fibres in the spun yarn and thereby to eliminate or reduce the pilling by preventing p  teasing out and migration of the synthetic fibres to the surface of the fabric during testing or in wear.  In one embodiment, the fabric is treated with ultrasonic vibratory apparatus comprising a head excited by a magnetostrictive or piezoelectric transducer. The fabric passes between the head piece in the form of a strip, roller or bar and an anvil.  In a second embodiment, the anvil is replaced by a second head piece vibrated in synchronism with the first head piece.  The head piece(s) may be cooled internally and maintained below the melting temperature of the synthetic fibres. Preferably, the fabric is treated in narrow rows at right angles to one another and the spacing of the rows is chosen so that the majority of the fibres which give rise to pilling are held in at least one spot along their length in the yarn.  Alternatively, the fibres may be attached to other fibres in a pre-selected pattern. The or each head is preferably an exponential horn made of silver steel.  The head(s) may be spring-loaded and have the shape of a chisel, a round tip, a wheel, a bar, a sphere or other convex shape. To treat the entire width of the fabric the head(s) may be of strip form, the anvil being a rotating roller if only one head is provided. If the strips are wider than 6" several transducers are mounted along the length thereof.  A relay circuit may be provided to interrupt power whenever the head and the anvil or the two heads touch.  The power may be controlled by a micro-switch which is held in the "on" position by the fabric entering the apparatus or by hand or foot control.  The fabric may be fed through the apparatus at a speed of 10-60 cm. per sec. by feed and delivery rollers or by a claw and presser assembly.  The gap between the head and the anvil or the two heads varies between 100% and 50% of the fabric thickness.  A specified fabric contains 67% polyethylene terephthalate crimped fibres and 33% viscose rayon.
Patent GB-1326603-A (GB)
Title: Printing apparatus for printing alphanumeric characters
IPC: G02B27/00
Filed: 1970-09-16
Abstract: 1326603 Selective printing HONEYWELL Inc 16 Sept 1970 [25 Sept 1969] 44261/70 Heading B6F Electromagnetic selective printing.-An electromagnetic recording head 5 (Figs. 1 to 5) is slidably mounted on a bar 9 of rectangular cross-section for linewise movement across a web of recording paper such as that described in Specification 1,306,981. The head is rotated through 180 degrees with respect to the printing position for illustration. A plurality of such printing heads could be used for line printing. Erasing.-Two character sensing and erasing heads 13 and 14 have electromagnetic core elements arranged to provide faces which are identical to the face of the printing head 5 except that there are no horizontal parts. The two heads 13 and 14 are positioned either side of a character to be erased and sense the Characters on either side of this character. The resulting signals are applied via an amplifier 16 to a switching circuit 17. This is under the control of an "erase" key 18, and when activated, supplies signals via an amplifier 19 to certain coils in the sensing and erasing heads 13 and 14 to produce the erasing action. The effect as illustrated in (Fig. 8) is to "reorientate" the magnetic web between the two sensed characters, but not to effect the sensed characters. The character between the sensed characters is however erased.
Patent GB-976379-A (GB)
Title: Process for preparing 4-hydroxy-3-keto-5ª-steroids and ethers of 3-hydroxy-í¸-5ª-steroids intermediates therein
Inventor: ERCOLI ALBERTO
IPC: C07J9/00
Filed: 1962-11-26
Abstract: The invention comprises ethers of 3-hydroxy-D 3-5a -steroids having at rings A and B the general formula <FORM:0976379/C1/1> wherein S represents the remaining portion of the steroid nucleus, Y represents hydrogen or a methyl group, and R represents an aliphatic hydrocarbon radical containing from one to ten carbon atoms, a cycloaliphatic hydrocarbon radical containing 4 to 7 carbon atoms, or a benzyl or aryl hydrocarbon radical, and the preparation thereof by catalytically hydrogenating the corresponding enol ethers of D 4-3-keto-steroids with a mol of hydrogen for each mol of the enol ether reactant in the presence of a catalytic amount of a basic substance, for example an organic base such as pyridine, piperidine or an alkylamine, or an inorganic base such as sodium, potassium or ammonium hydroxide, sodium acetate or sodium phosphate. The preferred ethers of 3-hydroxy-D 3-5a -steroids have the general formulae <FORM:0976379/C1/2> wherein R and Y have the above significance, R1 represents a atom or a hydroxy or an acyloxy group derived from a lower alkanoic acid containing 1 to 7 carbon atoms, R2 represents a hydrogen atom or a hydroxy or acetoxy group, R3 represents a hydrogen atom or a b -hydroxy or ketonic group, and R4 represents a ketonic group or a group of the formula <FORM:0976379/C1/3> wherein X represents a hydrogen atom or the acyl residue of an alkanoic acid and R5 represents a hydrogen atom or a hydrocarbon group containing 1 to 3 carbon atoms.  The above process may be amplified in that the resulting 3-hydroxy-D 3-5a -steroid products are reacted with a peracid or hydrogen peroxide to form the corresponding 4-hydroxy-3-keto-5a -steroids as a mixture of the 4a - and 4b -isomers which may be separated.  4-Bromo- or 4-chloro-3-keto-5a -steroids are prepared by reacting the above ethers of 3-hydroxy-D 3-5a -steroids with N-bromosuccinimide or N-chlorosuccinimide respectively.  Specification 938,638 is referred to.
Patent GB-1117050-A (GB)
Title: Movable pocketed surface projectile toy
IPC: A63F7/38
Filed: 1966-10-06
Abstract: 1,117,050. Game toy. S. T. DUNN. 6 Oct., 1966 No. 44697/66. Heading A6H. (Also in Division G5] A toy comprises top and bottom members, 22 and 24 (Fig. 4), of generally circular configuration interconnected by an intermediate partition 26 there being attached to the upper surface of the bottom member a sheet of paper or other suitable material 36 on which various indicia, e.g. geometrical data, may be printed and attached to the central portion of the undersurface of the partition a circular member 38 of paper or the like. The partition is provided with a plurality of apertures 40 and a central socket 42, both apertures and socket being capable of engaging a metal ball which is held captive between the top member 22 and the intermediate member 26. The apertures 40 may have numberical indicia 50 (Fig. 1) associated therewith. A radial indicating line 52 may be provided on the surface of the intermediate member 26 and the top member 22 may be marked around the circumference in degrees. Games may be played by counting the number of orbits made by the ball and the value of the socket into which the ball finally comes to rest.
Patent GB-1013506-A (GB)
Title: Safety harness for children
IPC: A47D13/08
Filed: 1963-11-13
Abstract: 1,013,506. Safety harness for children. D T. BOOTH. Nov. 9, 1964 [Nov. 13, 1963], No. 44730/63. Heading A3V. A safety harness for a child while out walking comprises a strap secured around the child's wrist and connected by a length of chain or cord to a strap secured around the child's arm above the elbow, the wrist strap being also connected by a length of chain or cord to a wrist strap worn by an accompanying adult.
Patent GB-1091785-A (GB)
Title: Four-way valve with rotary slide
IPC: F16K11/08
Filed: 1964-11-03
Abstract: 1,091,785. Valves. E. KIEBACK, and P. PETER. Nov. 3, 1964 [Jan. 18, 1964], No. 44750/64. Heading F2V. A four-way valve for water heating systems comprises a cylindrical casing containing a rotary slide and has branches 24, 25, 26, 27 to form respectively an inlet from a boiler, an outlet to a consumer, a return from the consumer, and an outlet back to the boiler. Branch 27 comprises an outer passage connecting with a by-pass passage 28 from branch 24, and an inner conduit 29 which in the position shown connects with branch 26. The rotary slide or plug 30 has stub shafts (31), Figs. 2-4 (not shown), and is provided with open-sided passages 32, 33 parallel to and on opposite sides of a diametral central part 35. The bottom of channel 33 at (35) is semi-circular and conforms to the opening in branches 25, 26, and 29. Channel 32 has semi-circular end portions (34) similar to the part 35 and a central portion (36) of larger radius conforming to the branches 24, 27. Portion 36 embraces an angle of about 90 degrees from the plug axis and portions 34 and 36 are blended by well-rounded transition parts (37). Branch 25 and conduit 29 are of curved nozzle shape as shown at 38, 39, 40, and 41 designed in conjunction with the plug shape to give smooth shock-free flow.
Patent GB-1394755-A (GB)
Title: Process for removing aromatic compounds from petroleum fractions
IPC: C10G25/00
Filed: 1972-09-28
Abstract: 1394755 Purifying hydrocarbons by adsorption BRITISH PETROLEUM CO Ltd 28 Sept 1973 [28 Sept 1972] 44794/72 Addition to 1334226 Heading C5E Aromatic hydrocarbons are removed from a kerosine or gas oil which contains at least 90 wt. per cent of normal paraffins and up to 5 wt. per cent aromatics by contacting, e.g. at 0-100‹ C., with adsorbent pellets comprising a vacuum or gas ground graphite having a B.E.T. surface area of 50-200 m<SP>2</SP>/gm. and an alumina binder. The feed can be first treated with a molecular sieve adsorbent to reduce its aromatic content to below 2 wt. per cent. Following the adsorption step the adsorbent is purged with n-butane, npentane or n-hexane, then desorbed with toluene and finally regenerated with nC 2 -nC 10  paraffins, e.g. n-pentane, before contacting with more feedstock.
Patent GB-1090108-A (GB)
Title: Apparatus for measuring the width of a moving elongate body without contact with the body
IPC: G01B11/04
Filed: 1965-10-26
Abstract: 1,090,108. Selective signalling. BROWN, BOVERI & CO. Ltd. Oct. 26, 1965 [Oct. 28, 1964], No. 45219/65. Heading G4H. In a system for measuring the width of a moving web light-guides, arranged at one end in a line transverse to the web and at the other end in a circle, are scanned by a rotating lightguide and a single photo-electric cell.
Patent GB-1002868-A (GB)
Title: Hot-water boiler
IPC: F24H1/48
Filed: 1963-11-15
Abstract: 1,002,868. Hot-water boilers. ACCUM A.G. Nov. 15, 1963 [Nov. 16, 1962], No. 45273/63. Heading F4A. A hot-water boiler comprises coaxial, bellshaped inner and outer water jackets 4, 7 enclosing a combustion chamber 3 and surmounted by a heater 2 for hot water supply, the outer water jacket having flow and return connections 24, 23 to a central heating system whilst the heater 2 has a cold water inlet 18 and a hot water outlet 17 and is heated by a circulation of primary water from the inner jacket up through an annular passage 15 surrounding a combustion air duct containing a burner nozzle 14, through a space 21 and downwards through tubes 20 to the outer water jacket. Combustion gases leave the combustion chamber 3 through an opening 35 and divide to pass horizontally around the top of the inner jacket in the annular space between the jackets above a baffle 34. They then reverse in direction, passing under the baffle 34 and above a baffle 35 and are again reversed by vertical baffles 28 to flow in a third horizontal pass under the baffle 35 to an outlet 27. Preferably, the horizontal baffles are disposed so that the gas passes decrease in height towards the outlet to increase the gas speed therethrough.
Patent GB-1243802-A (GB)
Title: Purification of fluosilicic acid
Inventor: ENGLISH MARTIN
IPC: C01B33/10
Filed: 1968-09-25
Abstract: 1,243,802. Fluosilicic acid purification. L. A. MITCHELL Ltd. 6 Oct., 1969 [25 Sept., 1968], No. 45618/68. Heading C1A. Fluosilicic acid is purified by adding its aqueous solution to a boiling solution of concentrated phosphoric acid, scrubbing the vapour produced with fluosilicic acid of concentration over 30% by weight, then absorbing hydrogen fluoride and silicon fluoride from the vapour in water or fluosilicic acid of concentration less than 30%. In an example, fluosilicic acid, concentration 15-30%, is fed to an evaporator containing phosphoric acid, concentration 45- 55% P 2 0 5 , from which it is evaporated at reduced pressure and at 65-95‹ C. The vapour is then sprayed with saturated fluosilicic acid; in a scrubber, and finally dissolved in cool fluosilicic acid in a scrubbing tower.
Patent GB-1426024-A (GB)
Title: Hydrogen sulphide oxidation
IPC: B01D53/77
Filed: 1973-10-01
Abstract: 1426024 Hydrogen sulphide oxidation INSTITUT FRANCAIS DE PETROLE 1 Oct 1973 [2 Oct 1972 17 Nov 1972] 45738/73 Heading C1A Hydrogen sulphide is oxidized to sulphur by means of molecular oxygen, in homogeneous liquid phase, in an organic solvent having a water content not in excess of 60% by volume during the reaction; in which there is used a solvent selected from amides, phosphoramides, sulphoxides, nitriles and ethers and at least one catalyst selected from: (a) a chelate of a transition metal selected from the metals iron, manganese, copper and cobalt, the chelate being selected from dialkyl dithiocarbamates, alkyl and aryl xanthates, dithiolates, 8-hydroxy quinolates and salicylaldimines, (b) a salt of said transition metal of the formula MX m  where M is the transition metal, X is an anion selected from Cl-, Br-, ClO 4 -, NO 3 - and SCN- and m is 2 or 3. Preferred amides are dimethyl formamide, dimethyl acetamide and N-methyl pyrrolidone; preferred phosphoramides are hexamethyl and hexaethyl phosphoramide; preferred sulphoxides are dimethyl and diethyl sulphoxide. Specified nitriles include acetonitrile and propionitrile; specified ethers include ethylene glycol, monomethyl- and dimethyl ether and tetrahydrofuran. Reaction may be effected in an anhydrous solvent or water may be added thereto; water is of course, formed during the reaction. Oxygen or air is used for the oxidation; sulphur crystallizes out and may be filtered off. The catalyst may be of the general formula MX m L n  where M is the transition metal, X the anion and L an organic ligand selected from amides, phosphoramides, sulphoxides, nitriles and ethers, m is 2 or 3 or n is 2, 4 or 6. From 0À001 to 20% by weight of catalyst, with respect to the solution, may be present and reaction may be effected at from 5 to 180 C. In a preferred method, the solvent is dimethyl formamide and the catalyst is ferric chloride, or has the formula or is trichlorobis (dimethyl formamide) Fe (III). The method is suitable for the removal of hydrogen sulphide from refinery gas or the effluent of a Claus unit.
Patent GB-1391975-A (GB)
Title: Method of making a timepiece
IPC: G04G9/00
Filed: 1972-10-05
Abstract: 1391975 Watches SUWA SEIKOSHA K K 5 Oct 1972 [7 Oct 1971] 46009/72 Heading G3T A timepiece part is made of glass which may be coloured, coated with a lustre and then Au, Pt, Pd or Ag, by heating a liquid metal resinate. In an example a light purple glass dial is provided with figures in pearl lustre by screen printing which are then coated with liquid bright gold. The glass part may also be a watch case, a protecting glass, hands, a calendar display disc, or the sides of a liquid crystal display panel.
Patent GB-1078854-A (GB)
Title: Process for preparation of crystalline high polymers of olefins
IPC: C08F4/64
Filed: 1964-11-12
Abstract: A polymerization catalyst comprises the composition obtained by mixing (1) the reaction product of (a) a halogen compound of a Group IVa, Va, or VIa metal in its highest valency state, and (b) an organometallic compound of a Group Ia, IIa, IIIa or IIb (excluding Hg) element, (2) an Al compound of the formula AlRn(OR1)3- n, wherein R and R1, which may be the same or different, are monovalent hydrocarbon radicals and n is 1 or 2, and (3) a halide of a Group Ib, IIb, IIIb, IVb, or Vb metal, or boron or aluminium.  The Periodic Table is that shown in the "Encyclopedia Britannica" 1951 Edition, Volume 17, page 518.  Exemplified component (1) is TiCl4 reacted with (C2H5)2 AlCl, VOCl3 reacted with (C2H5)2Cd, CrCl3 reacted with butyl lithium, and TiCl4 reacted with phenyl magnesium chloride. Exemplified (2) components are (C2H5)2AlOC2H5, (C2H5)2Al-O-C6H5, C2H5Al(OC3H7)2, (C6H5)2Al-O-C6-H5 and (C4H9)2AlOC4H9.  Exemplified (3) components are CuCl, AlCl3, AlBr3, CuCl2, Hg2Cl2,-HgCl2, CuCl2, SnCl4, SbCl5, PbCl2, and SbCl3. The catalysts are used to polymerize mono-ethylenically unsaturated hydrocarbons, such as ethylene, propylene, n-butene-1, n-pentene, and styrene, and mixtures of these monomers.  The polymerization and recovery of the polymers is effected by conventional "low-pressure" techniques. The polymers may be fractionated by solvent extraction.
Patent GB-1454989-A (GB)
Title: Separation method and apparatus
IPC: B07B13/00
Filed: 1972-10-06
Abstract: 1454989 Sorting solid material NATIONAL RESEARCH DEVELOPMENT CORP 5 Oct 1973 [6 Oct 1972] 46256/72 Heading B2H A method of separating discrete items I of different materials from a mixture comprises: causing the items 1 to make impact with a motionless or non-vibratory rigid plate 11 at substantially uniform speed relative to it; causing the items 1 after such impact to remain in contact with the plate 11, and to travel over it for a distance so that the different materials follow different trajectories 18, 19 due substantially to loss of energy due to friction; and separately collecting the items which have followed the different trajectories 18, 19. The non-vibratory motion of the rigid plate 11 may be spinning motion. The embodiment shows equipment used to separate non-ferrous automobile scrap, where a belt 7 is fed by a hopper 2 and a vibrating channel 3 and accelerates the scrap 1 and projects it towards a stationary plate 11, assisted by an idler roller 9 having a thick foamedplastics surface. Typical angular relationship and projection speeds are quoted.
Patent GB-974059-A (GB)
Title: Improvements in fabricated articles and in the production thereof
Inventor: BURTON FRANK
IPC: E04F13/08
Filed: 1962-12-07
Abstract: 974,059. Laminates. TURNER & BROWN Ltd. Oct. 24, 1963 [Dec. 7, 1962], No. 46390/62. Heading B5N. Fabricated articles of high chemical inertness comprise an outer layer of ceramic tiles bonded by means of a self-hardening synthetic resin cement to a polyester-resin-impregnated laminated glass fibre cloth backing. Suitable synthetic resins include " Asplit ' O ' " (Registered Trade Mark) and furane resin. In making, the tiles are laid face down in a former of the required shape, the synthetic resin cement is applied to the back thereof, followed by a layer of polyester resin-impregnated glass fibre cloth, and the whole cold cured. Open joints in the tiles may be pointed with the cement. The invention is suitable for making tanks, fume cabinets and laboratory working surfaces. According to the Provisional Specification, a cloth of P.V.C. monofilament may be included in the backing layer, and the resin known as " Epicote " (Registered Trade Mark) may be used instead of polyester resin.