baber/WOPTO huggingface dataset:
Patent GB-1440160-A (GB)
Title: 2,4-dioxo-1-pyrimidinyl penicillin and cephalosporin deri vatives
IPC: A23K20/195
Filed: 1974-11-06
Abstract: 1440160 Cutting oils; fuels RICHARDSONMERRELL Inc 6 Nov 1974 [7 Nov 1973] 47923/74 Headings C5F and C5G [Also in Division C2] Compounds of the Formula (I) wherein R 1  is H or CH 3 ; R 2  is H, halogen, OH, C 1-4  alkyl, CF 3 , NO 2 , NH 2 , CH 3 CO, CN, COOH, COOCH 3 , or COOC 2 H 5 ; R 3  is H, CH 3 , phenyl, COOH, COOCH 3  or COOC 2 H 5 ; R 4  is either of the radicals where X is H, OH, CH 3 COO, N-pyridinium, 5 - methyl - 1,3,4 - thiadiazol - 2 - ylthio or 1 - methyl - 1,2,3,4 - tetrazol - 5 - ylthio; and pharmaceutically acceptable salts thereof, are useful as additives for materials subject to microbial deterioration, such as cutting oils and fuel oils.
Patent GB-1248105-A (GB)
Title: Porous supports for chromatography
Inventor: KIRKLAND JOSEPH JACK
IPC: G01N30/56
Filed: 1969-09-30
Abstract: 1,248,105. Coated glass particles. E. I. DU PONT DE NEMOURS & CO. 30 Sept., 1969 [10 Oct., 1968], No. 47993/69. Heading C1M. [Also in Divisions B1 and B2] A packing suitable for use in chromatography columns comprises a central impervious macroparticulate core 11 of spherical glass beads surrounded by a porous coating consisting of a number of monolayers of microparticles 18, each monolayer being unlike (as regards charge and/or composition) its adjacent monolayers and at least one of the monolayers comprising a sorptively active organic material. On to the core are alternately deposited monolayers of silica and carbon, natural latex, natural gum, a protein, a synthetic polymer or, most preferably an ion exchange resin. In the most preferred form, the glass core has a diameter of 37-44 Á, and is surrounded to a total thickness of 0À1- 2 Á by alternate monolayers of silica microparticles having a diameter of about 15 mÁ and ion exchange resin microparticles having an average diameter of 0À1-0À5 Á. The coatings are deposited by cleaning negatively charged glass beads with an alkaline glass cleaner and then contacting the negatively charged beads first with a positively charged strongly basic anion exchange resin and then, after washing and drying, with a negatively charged silica sol obtained by adding contrasting ground silicon metal which has been activated by contact with hydrofluoric acid to a sol of 0À1 Á silica in ammonia solution from which excess ammonia is then boiled off leaving a sol of 0À2 Á silica. The product is again washed and the alternate coating process repeated three times after which the beads are washed with isopropanol and dried.
Patent GB-1501360-A (GB)
Title: Casing for an electrochemical cell
IPC: H01M2/12
Filed: 1976-11-19
Abstract: 1501360 Vents for batteries SAFT-SOC DES ACCUMULATEURS FIXES ET DE TRACTION 19 Nov 1976 [21 Nov 1975] 48457/76 Heading H1B An electric cell has a deformable sealing member 3, and the can 1 has a hole 8 punched in it, at such a position that when the pressure in the cell increases above a limit, the member 3 rises and allows gas to escape through the hole 8. When the pressure drops, the member 3 reseals the hole. The cover 2 may be of metal or of plastics with a terminal extending therethrough.
Patent GB-1373463-A (GB)
Title: 4-tetrazol-5-yl- butyltripenhylphosphonium bromide
IPC: C07F9/6524
Filed: 1972-01-06
Abstract: 1373463 4-(Teirazo-5-yl)butyltriphenylphosphonium bromide PFIZER Inc 6 Jan 1972 [1 Sept 1971] 48458/73 Divided out of 1373461 Heading C2P The novel title compound is prepared by heating sodium azide with 4-cyanobutyltriphenylphosphonium bromide, obtained by reacting 5- bromovaleronitrile with triphenylphosphine, in the presence of ammonium chloride, lithium chloride and dimethylformamide.
Patent GB-1476593-A (GB)
Title: Welded joint
IPC: E02F3/815
Filed: 1975-11-26
Abstract: 1476593 Welding by fusion and pressure CATERPILLAR TRACTOR CO 26 Nov 1975 [9 April 1975] 48562/75 Heading B3R [Also in Division E1] A method of welding to a first plate member 20 having a curved surface portion 25 an edge portion 26 of a second plate member 22 comprises the following steps: welding, in a first welding stage, an elongate backing piece 27 to the surface portion 25 of the first member, perpendicular to its lines of maximum curvature, the backing piece 27, edge portion 26 and surface portion 25 defining a weld space 36, and arc welding, in a second welding stage the piece 27 and portions 26, 25 to form a weld 10. The backing piece 27 prevents metal blow-through and acts as a heat sink during the arc welding. The first welding stage may comprise a spot or arc welding process or, as shown in Fig. 5, continuously resistance welding a circular cross-section rod 27 to the surface portion 25 using a roller electrode 32 (Fig. 5) and, if desired, an opposing roller electrode 34 (Fig. 4, not shown). The method may be used in fabricating bulldozer blades (Fig. 1, not shown) in which the first member is convexly curved, e.g. cylindrical, at the surface portion 25.
Patent GB-1262980-A (GB)
Title: Stepping motors
Inventor: COOK KENNETH MEYNELL
IPC: H02K37/12
Filed: 1969-10-02
Abstract: 1,262,980. Electric motors; core constructions. SMITHS INDUSTRIES Ltd. 2 Oct., 1970 [2 Oct., 1969], No. 48578/69. Heading H2A. A stepping motor comprises a rotor having salient poles 39 and angularly displaced magnetized poles so that when stator poles 26, 27, 30, 31, of the motor are energized the rotor moves until the salient poles 39 are aligned with the stator poles (Fig. 4, not shown) and then, on deenergizing the stator poles, the rotor moves on until the magnetized poles are aligned with the stator poles. The stator poles are arranged in two pairs 26, 27 and 30, 31 offset by 90 degrees and magnetized by a coil 33, Figs. 1, 2 (not shown), to have opposite polarity. The rotor includes a discoidal permanent magnet 34 magnetized to have two adjacent N poles and two adjacent S poles. The poles 39 are formed on a soft iron disc 35 abutting the magnet 34. The motor shown moves anti-clockwise by 90 degrees each time the winding 33 is excited. The motor includes a housing 10 and end plates (11, 12) made of aluminium. In an alternative arrangement the magnet 34 may have alternate N and S poles and the stator may be arranged to produce, when energized, two adjacent N poles and two adjacent S poles.
Patent GB-1241965-A (GB)
Title: Sheathed electrical cable
IPC: H01B7/17
Filed: 1968-10-15
Abstract: 1,241,965. Insulating laminates; seaming non - metallic sheet material. GENERAL CABLE CORP. 15 Oct., 1968 [11 Dec., 1967], No. 48743/68. Headings B5K and B5N. [Also in Division H1] A multicore telephone cable is made fluidtight by folding about the cores 12 a laminate comprising insulating layers 18, 20, 24 around a metal foil 16, preferably Al 0À3-1 mil. thick, the layer 18 also enclosing the edges of the foil 16. The insulation 18, 20 is polyolefin copolymer, 5-10 and 2-4 mil. thick; respectively, preferably polythene modified with reactive carboxyl groups to bond with the foil 16. The layer 24 of high density polyethylene 4-6 mil. thick is fused to the layer 20 and has a melting point high enough to be unaffected by a seaming process. This process comprises fusing the lower region of the layer 18 at the projecting edges of the foil, and then fusing and compressing the upper region so that the layer 18 spills out over the edges at 40.
Patent GB-1197774-A (GB)
Title: A Method of Testing the Value of Young's Modulus in Carbon Fibres.
Inventor: JOHNSON JOHN WILLIAM
IPC: G01N27/02
Filed: 1967-10-27
Abstract: 1,197,774. Determining Young's modulus. ROLLS ROYCE Ltd. Oct. 15, 1968 [Oct. 27, 1967], No.48911/67. Heading G1N. In a method of testing the value of Young's modulus in carbon fibres manufactured by heating a carboniferous fibre to drive off the majority of constituents other than carbon and "graphitizing" the fibre at a temperature above 700‹ C., the resistivity of the resultant fibre is measured and the value of Young's modulus is determined by reading a graph of the relationship between Young's modulus and resistivity. Alternatively a computer may give a read-out of the value of Young's modulus The measuring of the resistivity of the fibre may be a continuous process and may be achieved either by passing the fibre through a coil in the grid circuit of a tuned oscillator and measuring the output of the oscillator, or by measuring the resistance of a known length of fibre in a bridge circuit and measuring its cross-section. In both these methods the fibre may be passed over two spaced rollers, the rollers acting as electrodes in the latter method. In this way any malfunctioning of the manufacturing process is immediately detected.
Patent GB-1106220-A (GB)
Title: Improvements in or relating to information storage and retrieval
IPC: G03H1/26
Filed: 1965-11-18
Abstract: 1,106,220. Producing holograms. AMERICAN OPTICAL CO. Nov.18, 1965 [Dec.2, 1964], No.49025/65. Heading G2C. Apparatus for sequentially recording information from a number of transparencies 26, 28, 30, 32, one at a time, on to a single film 22 comprises a coherent light-source 12 emitting a beam 14 which is split by a mirror 16 to produce a reference beam 18 and an object beam 20, the ratio of the reference beam intensity to the object beam intensity being approximately 10:1. The object beam is diffused by a ground glass plate 24 and, after passing through one transparency (e.g. 26) interferes with the beam 18 to form a hologram of the transparency 26 on the photographic plate 22. The transparency 26 is then replaced by another (e.g. 28) in a different plane in space, a hologram of which is also formed on the plate 22. In another embodiment Fig. 3 (not shown) holograms of several opaque objects (46), (48), (50), (52) are formed on the plate (22), but in this case the ratio of the reference beam intensity to the object beam intensity is 1:10, and the objects themselves act as diffusers. Retrieval of the information stored on the film 22 is achieved by illuminating, with coherent light of variable radius wave front Fig. 2 (not shown), the film, the information content of the film then being carried by a beam (40). The radius of the wave front is varied by use of a zoom lens system (36) to produce on a screen (42) only one image at a time, the radius being varied in such a manner that the larger the radius of curvature, the nearer the object, the image of which is seen on the screen (42), to the lightsource 12. The hologram producing systems are arranged so as to give rise to off axis images to prevent "cross-talk" between different images.
Patent GB-1244648-A (GB)
Title: Improvements in or relating to frequency-changer circuits
IPC: H03D7/00
Filed: 1968-10-17
Abstract: 1,244,648. Frequency changers; radio receiving circuits. SIEMENS A.G. 17 Oct., 1968 [18 Oct., 1967], No. 49188/68. Headings H3Q and H3T. A superheterodyne signal amplifier has a frequency changer circuit in which selective frequency conversion is effected by a pulsescanned N-path filter operated at a scanning frequency which is a sub-harmonic of the signal frequency. A signal of frequency f 1'  Fig. 1, applied to an input terminal E is fed to an N-path filter 1 which is scanned by scanning pulses from a scanning generator 2. The output of the N-path filter 1 is connected to a band-pass filter 3 which passes the frequency f 2 . The invention, which is stated to be particularly suitable for use as a second mixer stage in a double superheterodyne receiver, depends upon the property of the N-pass filter that if the input signal has the frequency, e.g. 3f 0 , where f 0  is the scanning frequency there will be in the output not only components of the frequencies 4# 0 , 5# 0  &c. but also the frequencies # 0  and 2# 0 . In a second embodiment the N-path filter is followed by three band-pass filters giving outputs at different frequencies (Fig. 2, not shown). A further embodiment comprises an A.F./F.M. receiver which comprises a double superheterodyne on F.M., the incoming signal f 1 , Fig. 3, being converted to a first intermediate frequency ZF 1  in a first mixer 31, and passed via band-pass filter 33 and switch S to a second frequency changer, comprising N-path filter 1 having scanning generator 2, the second intermediate frequency ZF 2  being selected by bandpass filter 35. A.M. signals of frequency f 1 <SP>1</SP> are converted directly to the final intermediate frequency 2F2 by means of mixer 32 which is followed by band-pass filter 34. The output of filter 34 is fed via switch S in reversed position to N-path filter 1, which on this waveband operates purely as a filter.
Patent GB-1318608-A (GB)
Title: Process and apparatus for the extrusion of expansible plastics material
IPC: B29C48/90
Filed: 1970-10-16
Abstract: 1318608 Extruding expansible plastics UGINE KUHLMANN 16 Oct 1970 [22 Oct 1969] 49244/70 Addition to 1184688 Heading B5A [Also in Division C3] An expansible plastics material 312 is extruded from a die outlet 305 having part only of its contour contiguous with, and the remainder of its contour circumscribed by the contour of a cooled sizing die 307 through which the extrusion is pulled, e.g. by a double belt device, the expansible material contacting the contiguous sizing die surface being cooled to a harder, denser, and glossier surface skin than, and prior to, the material which expands into contact with the remaining surfaces of the sizing die 307. Various sections of extrusion and sizing die are illustrated, including to produce a rectangular section extrudate with the skin formed along one side only, or along three sides thereof, or various sections combining curved and straight sides, e.g. as in Fig. 7, or by using a pair of die outlets 305, e.g. each for differently coloured material, and the sizing die 307 of Fig. 10. The sizing die, may be regulated in temperature by circulation of a fluid, e.g. at from 20‹ to - 40‹ C. The extruded section may incorporate wires or rods. Two examples are given of the extrusion of polystyrene expanded by sodium carbonate. It is stated that the plastics may also comprise polyvinyl chloride, acrylonitrile-butadiene-styrene copolymer, or mixtures thereof, polyamides, polycarbonates, or polyurethanes.
Patent GB-1389145-A (GB)
Title: Treatment of sulphidic minerals
IPC: C22B23/02
Filed: 1973-10-23
Abstract: 1389145 Recovery of metals from sulphidic materials INTERNATIONAL NICKEL CO OF CANADA Ltd 23 Oct 1973 [27 Oct 1972]  49278/73 Heading C7D  Non-ferrous metals, as alloys with iron, are obtained from ferruginous sulphidic minerals containing the non-ferrous values by heating mineral particles at 800 to 1000‹C for sufficient time to cause a major amount of the non-ferrous metal to diffuse into metallic iron present or formed in situ, cooling, and separating a metallic fraction from the non-metallic fraction. Preferably the mineral, e.g. a pyrrhotite concentrate, is mixed with iron oxide and a reducing agent, e.g. coal, coke or charcoal; agglomerated into a briquette or pellet; heated in a non-oxidizing- atmosphere, at 850-925‹C for up to 30 minutes, which causes nickel to diffuse into the metallic iron formed in situ; cooled, crushed and magnetically separated to yield a metallic fraction containing the majority of the nickel, and less sulphur than in the mineral. In alternative embodiments, the mixture of iron oxide and reducing agent can be replaced by particulate  metallic iron; or the iron oxide may be supplied by a calcine which may be the mineral starting material roasted to a low sulphur content; or the iron oxide may be replaced by an oxide of alkali metal or alkaline earth metal, the metallic iron being produced in situ from the mineral.
Patent GB-1408185-A (GB)
Title: Resolution enhancement of image intensification apparatus
IPC: H01J31/50
Filed: 1972-10-26
Abstract: 1408185 Image intensifiers; cathode-ray tube circuits INTERNATIONAL STANDARD ELECTRIC CORP 26 Oct 1972 [4 Nov 1971] 49453/72 Headings H4F and H4T [Also in Division H1] Image intensification apparatus comprises a photo-cathode 14<SP>1</SP> on an input window, a luminescent screen 15<SP>1</SP> on an output window, a channel type electron multiplier therebetween, a first polarizer 19<SP>1</SP> on the outside of the envelope at the input, a first transparent device 20<SP>1</SP> adjacent the input window deflecting light rays passing therethrough according to an applied oscillatory signal, utilization means outside the envelope at the output and control means connected to the transparent device and utilization means to operate them synchronously so that the oscillated image is apparent at the output as a stationary image. The apparatus improves image resolution. Fig. 1 (not shown) includes a glass cylinder (11), fibre optic windows (12, 13), electron multiplier (16), lens (18), polarizer (19), electrically active double refracting crystal (20), crystal (22) which may or may not be the same as crystal (20) and analyser (23) which may not be the same as polarizer (19). The oscillator output may be sawtooth triangular wave or sine wave, the frequency may be 16 Hz or a range higher or lower than 10 to 20 Hz is possible. Fig. 3 includes vidicon 39, fibre optic window 41, and photoconductive layer 42 connected to output circuit 43 with utilization device 44 such as a kinescope for closed circuit TV or a TV transmitter. Deflection may be magnetic or electrostatic. Auxiliary circuit 47 connected to the vertical plates for example, includes analogue adder 54 with two inputs as shown, and modulates the output of the sweep generator in proportion to the oscillator output so that the vidicon electron beam is positioned in synchronism with the oscillating input image. The vidicon may be replaced by any conventional scanning type camera tube. Image oscillation may be in any direction.
Patent GB-1117111-A (GB)
Title: Improvements in or relating to composite steel and concrete structures
IPC: E01D2/04
Filed: 1963-12-16
Abstract: 1,117,111. Steel and concrete bridge deck. CHRISTIANI & NIELSEN Ltd. and F. HANSEN. 16 Dec., 1964 [16 Dec., 1963], No. 49636/63. Headings E1G and E1W. A steel and concrete bridge deck or beam (Fig. 9, not shown) comprises a steel platelike or lattice web 4 having outstanding shear connectors 8 on both faces along opposite marginal portions embedded in the concrete 2, 3. The shear connectors may be in the form of headed projections welded to the web, or may be constituted by transverse prestressing elements, e.g. cables or rods passing through apertures in the web. In the bridge described, the concrete embedding the marginal portions of the web forms upper and lower decks connected by webs 4 extending both transversely and longitudinally of the bridge. The upper deck has a side walk 5, Fig. I (not shown) and the deck structure is carried by piers 1.
Patent GB-497325-A (GB)
IPC: F16F9/28
Abstract: 497,325. Hydraulic shock - absorbers. ARMSTRONG, F. G. G. May 22, 1937, No. 14252. [Class 108 (iii)] The resilient load on a valve controlling flow between the chambers of a piston or rotary vane type shock-absorber, is provided by a lever pivoted to the shock-absorber casing, a displaceable pin bearing at one end on the lever, and a coiled spring between the other end of the pin and the valve ; the lever being angularly displaceable by a cam face on the shock-absorber shaft to vary the valve loading in accordance with piston displacement and by a remote control, e.g. from the vehicle dashboard, to vary the load independently of piston displacement. As shown, the valve 27, which has a stem provided with a flanged sleeve 28 to enable it to open in response to pressure in both directions, seats in a portion 23a of a member 23 screwed into a bore 22 of the casing passages 20, 19 communicating with the chambers. The valve is loaded by a spring 31, pin 33 and lever 34, the latter being displaceable by a cam surface 35 on the shaft 14 and by a remote control through rotation of a spindle 40, the end of which has a cam surface engaging a similar surface on the end of the lever. The lever is normally maintained in engagement with one or other cam surface by a spring 41. In modifications, the spindle 40 is replaced by a spindle having a quick thread engagement with the casing or by a plunger adapted to be displaced by a hydraulically-operated bellows.
Patent GB-1466640-A (GB)
Title: Multiple layer of anti-reflection coatings for optical purposes
IPC: G02B1/113
Filed: 1975-12-05
Abstract: 1466640 Anti-reflection coatings LEYBOLDHERAEUS-VERWALTUNG GmbH 5 Dec 1975 [5 Dec 1974] 50084/75 Heading G2J An anti-reflection coating formed by vacuum deposition on an optical substrate comprises at least one layer of a material having a higher refractive index and at least one layer of material having a lower refractive index, the high refractive index material containing between 80 and 92% ZrO 2 , the balance being two materials which improve the homogeneity of the ZRO 2 ; these two materials are Al 2 O 3  and TiO 2  or SiO 2  and TiO 2 .
Patent GB-1064859-A (GB)
Title: Improvements relating to seam welding of non-magnetic tubing
Inventor: JOHNSON OLIVER SANDERS
IPC: B23K37/08
Filed: 1964-12-09
Abstract: 1,064,859. Rolling; making electric conductors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Dec. 6, 1965 [Dec. 9, 1964], No. 50149/64. Headings B3A and B3M. A non-magnetic cable sheath (1) is formed by folding aluminium strip (2) around the cable core (3) by rollers (5), welding the seam (4) at (W), and smoothing the internal bead of the seam by rollers (11) as the sheath moves to the left, Fig. 1 (not shown). The sheath is formed over size, so as to leave a space (6), and is later corrugated or drawn down on to the core. A rigid steel strip (7) is inserted into space (6) and anchored by rods (8). One or more rollers (11) are carried by the strip, and the strip forms an armature for an electromagnet (12). External rollers (14) maintain the clearance between the polepieces (13) and the sheath, and also serve to smooth the outer weld bead as the rollers (11) are pulled on to the inside of the sheath by the magnet.
Patent GB-1111643-A (GB)
Title: Making methane-rich gas
Inventor: HUGHES DAVID OWEN
Filed: 1963-12-19
Abstract: A methane-rich gas mixture is made by reacting with at least the minimum amount of hydrogen required for complete conversion to methane of the non-aromatic hydrocarbons present in the feedstock, in the presence of a fixed bed methanation catalyst, a hydrocarbon comprising liquefied propane and butane, or a petroleum distillate boiling up to 350 DEG  C.  The catalyst is preferably nickel or cobalt, optionally promoted by a precious metal of Group VIII and on a refractory support; e.g. the catalyst, before reduction, may comprise nickel chromite or cobalt chromite on a magnesia support, or nickel on alumina.  The hydrogen may be provided by steam-reforming hydrocarbons, but the hydrogen-containing gas mixture should not contain more than 15% Co equivalent or more than 10% steam. Pressures of 0 to 750 p.s.i.g. are mentioned. Two specific examples are given.  The product gas may be used to enrich a lean gas, e.g. water gas.ALSO:Three catalysts employed in a comparative example concerned with making a methane-rich gas by reacting hydrogen with a light petroleum distillate comprise:- nickel chromite comprising 52.6% NiO and 47.4% Cr2O3: nickel chromite on magnesia comprising 21.2% NiO, 17.8% Cr2O3, 0.4% Al2O3, 60.6% MgO; and coprecipitated nickel on alumina comprising 71.3% NiO, 28.7% Al2O3.  Each catalyst was reduced with hydrogen at 450 DEG C.
Patent GB-1110030-A (GB)
Title: Process for the preparation of chlorinated aromatic hydrocarbons
Inventor: HELDEN ROBERT VAN
IPC: C07C17/361
Filed: 1966-11-09
Abstract: In Example 1, 3,5-di-tert-butyltoluene is prepared by the AlCl3-catalysed reaction of toluene with tert-butyl chloride or with isobutene.ALSO:Compounds of formula <FORM:1110030/C2/1> wherein R1 is C1- 3 alkyl and R2, R3 are each C4- 6 tert-alkyl, are prepared by reacting the corresponding unchlorinated or monochlorinated precursor with Cl2 in a polar medium in presence of a Lewis acid.  The product may be dealkylated to give 2,6-Cl2C6H3-R1.