baber/WOPTO huggingface dataset:
Patent GB-1252967-A (GB)
IPC: B41M5/36
Filed: 1969-01-29
Abstract: 1,252,967. Thermographic materials. RICOH K.K. Jan.29, 1969 [Jan.30, 1968], No.4931/69. Heading G2L. A coloured polypropylene film having a heat shrinkage when heated to 120‹C. for one minute of either 5% or less in its two bi-axial directions or 1% or less in one axial direction and 15% or less in the other axial direction, or a coloured polystyrene film having a shrinkage when heated to 100‹C. for one minute of 8% or less in two biaxial directions; the coloured film being between 20Á and 200Á thick and transmitting at least 40% of the wavelength of maximum absorption is imagewise exposed to heat to soften the film and produce a wrinkled image of lower transmissivity which may be used as a projection slide. In the examples, cadmium red pigment is added to polypropylene resin and rolled to form a coloured film. This form is heated in contact with an original containing infrared absorbent images to produce a wrinkled image. The film may be projected to show a black image on a red background. The pigment may be replaced by phthalocyanine blue or a yellow dye and stretched polystyrene may be used as the polymer.
Patent GB-1264312-A (GB)
IPC: G08B21/18
Filed: 1968-02-21
Abstract: 1,264,312. Urea. IMPERIAL CHEMICAL INDUSTRIES Ltd. 21 Feb., 1969 [21 Feb., 1968], No. 8425/68. Heading C2C. [Also in Divisions G4 and H3] In a prilling tower for the production of urea, fans are provided at the top of the tower to extract dust. An electronic circuit (see Division H3) is arranged to be sensitive to the vibration of the fan blades due to accumulation of dust and moisture thereon and operates an alarm in the event of excessive vibration so that the build up of dust and moisture may be removed by injection of water on to the blades. In the event of further excessive vibration, the motor is automatically tripped off.
Patent GB-1289850-A (GB)
IPC: C07D501/20
Filed: 1969-12-05
Abstract: 1289850 7-Amino-cephalosporanic acid related compounds CIBA-GEIGY AG 5 Dec 1969 [11 Dec 1968 8 July 1969] 59612/69 Headings C2A and C2C Novel compounds I (including salts and isomers thereof): where R 1  is H or the organic residue of an alcohol, R 2  is H or acyl and R is methylene mono- or di-substituted by functional groups, optionally substituted-hydrocarbon residues, -heterocyclic or -heterocyclic-aliphatic residues (heterocyclic groups possess aromatic character), are made by ring closing compounds II, under acidic conditions, where R<SP>0</SP> 2  is H or acyl(Ac<SP>0</SP>) easily removable under acidic conditions, R 3  is an organic residue and R 4  is H when R<SP>0</SP> 2  is Ac<SP>0</SP>, or R 3  and R 4  together signify a disubstituted carbon atom when R<SP>0</SP> 2  is H or Ac<SP>0</SP>, and R 0  is a methyl residue having at least one H and being appropriately mono- or di-substituted as for R. Products can be acylated, deacylated, esterified and/or saponified to afford other compounds I. Pharmaceutical preparations active against micro-organisms, especially against gram-positive bacteria, contain I as active ingredient; administration is enterally or parenterally.
Patent GB-1296070-A (GB)
IPC: G01C15/00
Filed: 1969-12-30
Abstract: 1296070 Electro-optical levelling instruments JUNGNER INSTRUMENT A B 30 Dec 1969 [13 Jan 1969] 63337/69 Heading G1A An optical device for use in a levelling instrument comprises a laser light source 1 whose beam is split in unit 7 to fall on two photo-cells 4, 5 housed in detector 6. One of the split beams is given an additional reflection so that for a small angular deflection of the beam leaving laser 1 the oplit beams are deflected up and down respectively so that the balance of illumination on the two photo-cells is not disturbed. As shown the beam is reflected in prism 2 and split in prism 3 with the beam for photo-cell 4 being subjected to an extra reflection. In alternative embodiments different kinds of prisms may be used, e.g. a divided pentagon prism, Fig. 4 (not shown) and by use of a lens or prism system only a single photocell need be used, Figs. 2 and 3 (not shown). The apparatus can be modified to act as an autocollimator and define a plane by providing one photo-cell in the support for the laser and a second in the position detector together with a prism for reflecting light on to the one photo-cell, Fig. 6 (not shown).
Patent GB-1296096-A (GB)
IPC: H01L29/00
Filed: 1970-02-25
Abstract: 1296096 Semi-conductors WESTERN ELECTRIC CO Inc 25 Feb 1970 [26 Feb 1969] 9068/70 Heading H1K A Schottky barrier rectifying contact is formed upon an N-type gallium arsenide crystal 11 by etching, coating with a flux of SnCl 2  or SnBr 2  directly from solvent or by evaporation through a mask and depositing a layer of tin 12 upon the coated region by evaporation or pulse melting. Thereafter, contacts comprising overlays of Ti 13, Pt 14 and Au 15 are applied, the barrier being indicated at 17.
Patent GB-1301459-A (GB)
IPC: C07C59/64
Filed: 1970-01-20
Abstract: 1301459 Preparation of methoxynaphthylpropionic acid SYNTEX CORP 20 Jan 1970 [30 Sept 1969] 31649/72 Divided out of 1300591 Addition to 1211134 Heading C2C 2 - (6 - Methoxy - 2 - naphthyl) propionic acid is prepared by treating a 1-6C alkyl 6-methoxy-2-naphthyl-acetate with a base selected from alkali metal hydrides, triphenylmethyl alkali metals and amides MNR 1 R 2  (M is alkali metal, R 1  and R 2  are H or 1-6C alkyl) and methyl chloride, bromide, or iodide, dimethylsulphate or methyl alkanesulphonate, arenesulphonate or aralkanesulphonate in an ether solvent, and hydrolysing the ester group of the ester formed. A dl-mixture may, if desired, be resolved. Pharmaceutical compositions comprising 2-(6- methoxy-2-naphthyl) propionic acid, when prepared as above, and an excipient, are used in treating inflammation, pain and pyrexia.
Patent GB-1308976-A (GB)
Title: Bulk transporters
IPC: B60P1/16
Filed: 1970-06-27
Abstract: 1308976 Bulk transporters CARMICHAEL & SONS (WORCESTER) Ltd 25 June 1971 [27 June 1970] 31273/70 Heading B7B The rear end closure 23 of a tipping road vehicle transporter container 14 is formed by a fixed upper plate 28 and a lower plate 29 pivotally connected thereto, a valve controlled discharge opening 30 being defined in plate 29. The plate 29 is pivoted to an open position to allow discharge of non-free flowing material, whereas when the container is filled with free flowing material plate 29 is locked in a closed position and discharge occurs via opening 30. The container 14 is mounted on a sub-frame 15 pivotally connected at 19 to a trailer or vehicle chassis 11, tipping means 21 being provided at the front end of the container. Charging hatches 24-27 are provided.
Patent GB-1309131-A (GB)
Title: Random copolymer
IPC: C08F212/08
Filed: 1970-03-13
Abstract: 1309131 Copolymers of styrene/isobutylene and compositions thereof VELSICOL CHEMICAL CORP 13 March 1970 12060/70 Headings C3P and C3Q Solid, homogeneous and random copolymers of styrene and isobutylene have a number average molecular weight of 1000 to 4000, a heterogeneity index defined as the ratio of the weight average molecular weight to the number average molecular weight of 1À50 to 2À25 and a styrene content of 40 to 90% by weight. The copolymers are made by a process comprising contacting styrene and isobutylene at a temperature of 10‹ to 50‹ C. in the presence of a hydrocarbon solvent, and a primary catalyst which is at least one alkyl aluminium dihalide, wherein the alkyl group contains 1-5 carbon atoms, and at least one co-catalyst selected from water, an alcohol, an alkyl halide, or a hydrogen halide, maintaining the monomers in contact with the catalyst system for such a time as to insure complete polymerization, and recovering the resulting copolymer. The styrene and isobutylene may be in hydrocarbon solution when contacted with the catalyst/solvent mixture, or they may be added as two separate streams, or preferably a mixed stream. In Example 1 a series of such copolymers is made using a solvent of hexane, or heptane, a primary catalyst of ethyl aluminium dichloride with co-catalysts of water, tert.-butyl chloride or tert.-butyl alcohol. At the end of the copolymerization the catalyst was removed by adding ethanol and solid Ca(OH) 2  to neutralize the catalyst, and then adding an acid acting clay to adsorb the neutralized catalyst residue, and then filtering and evaporating the solvent. The copolymers may be used to make a hot melt adhesive composition by compounding with wax and an ethylene/ vinyl acetate copolymer or to make a pressuresensitive adhesive composition by compounding with an elastomer such as natural rubber.
Patent GB-1309757-A (GB)
Title: Machine tools or the like
IPC: B23Q1/54
Filed: 1969-10-01
Abstract: 1309757 Machine tool S R KILNER 29 Sept 1970 [1 Oct 1969] 48193/69 Heading B3C A machine tool comprises a work-table 1, having work-locating-guides 6, 7 or 6<SP>1</SP>, 7<SP>1</SP>, a circular rotary table 3, a circular tool head 4 whose axis K is arranged as a fixed position from the axis O of table 3 and a tool spindle 15 located in an aperture P, whose distance from axis K is the same as the distance O, K. Table 1 can move vertically to feed the workpiece 2 to the tool spindle 5. The co-ordinate position of spindle 5 is set by rotating table 3 and tool head 4. A formula is used to convert the co-ordinate settings to an angular setting. (For Figures see next page.)
Patent GB-1313654-A (GB)
Title: Apparatus for indicating rates of change of velocities
IPC: G01P15/04
Filed: 1969-07-17
Abstract: 1313654 Accelerometers INERTIA SWITCH Ltd 15 July 1970 [17 July 1969] 36083/69 Heading G1K Apparatus for indicating rates of change of velocity comprises a housing 1, with walls defining inter-connected sloping channels with upper and lower ends separated by vertical drops 5 and successively increasing slopes 4, the walls also providing concave stops 8 at the upper ends of the channels, and a seismic roller 3A freely movable along and between the channels from a first to a second position, the extent of such movement being dependent on the magnitude of the rate of change of velocity experienced by the housing 1 and the concave stops 8 having substantially the same radius, e.g. “ inch, as the seismic roller 3A. To measure the acceleration of a motor vehicle or the retardation due to the application of its brakes, the apparatus is secured in the appropriate direction fore and aft by hooking on a window, by clamping or by suction pads and has a slope indicator 6, 6A to facilitate levelling it with the portions 5 vertical. Housing parts 1, 1A and 1B may be moulded in plastics material and may be joined by bolting or by adhesive or may be integral. If the material is not transparent, viewing windows are provided adjacent the lower ends of the channels. Each channel has the same horizontal and vertical extent, the latter being equal to the diameter of the roller, shown as a sphere 3A.
Patent GB-1316676-A (GB)
Title: Joint prosthesis
IPC: A61F2/30
Filed: 1970-05-14
Abstract: 1316676 Joint prosthesis R F CATHCART 14 May 1970 23447/70 Heading A5R A joint prosthesis comprises a domed head 12 joined by way of a common periphery 24 to a tapered spindle 14. The radius of curvature X 1  of a portion of the common periphery differs from the radius of curvature X 3  of the domed head. X 3  may be greater or smaller than X 1 . Portions of the periphery may have radii X 1  and X 2  both of which differ from X 3 . The ratio X 1  X 2  may be 1:31/32 and the ratio X 1  : X 3  may be 1:1 1/32. (For Figures see next column)
Patent GB-1321912-A (GB)
Title: Device for use in teaching children simple arithmetic
IPC: G09B19/02
Filed: 1970-07-23
Abstract: 1321912 Abacuses; educational appliances A MACKENZIE 18 Oct 1971 [23 July 1970] 35857/70 Headings G4B and G5G An arithmetic teaching device of the abacus type comprises a base 11 divided by upstanding walls 12 into twenty compartments, in each of which is located a slide 14, Fig. 6, slidable in its compartment by means of a peg 15 to display a selected one of three differently coloured sections 16, 17, 18 in the gap between cover-plates 19 and 20. Cover-plate 19 bears numerals 1 to 20 in correspondence with the twenty compartments. The device also includes a bar 30 bearing numerals 1 to 10 on one side and 10 to 1, Fig. 5 (not shown), on the other side. Bars 22, 23 limit the extent of possible movement of pegs 15 and therefore of the slides 14. Fig. 7 shows the device used to add six and five. The first five slides are moved to display coloured sections 16. Bar 30 is then positioned as shown and the next six slides are moved until their pegs 15 abut bar 30 and coloured sections 17 are displayed. The sum is indicated by the numerals on cover-plate 19.
Patent GB-1322151-A (GB)
Title: Method for slitting metal strip
IPC: B23D19/06
Filed: 1971-01-06
Abstract: 1322151 Shearing ALCAN RESEARCH & DEVELOPMENT Ltd 6 Jan 1971 700/71 Heading B3W To slit metal, e.g. aluminium, strip without producing burr projecting from the faces of the slit strips adjacent the slit edges, strip is scored to form a V-section groove, preferably by scoring discs, on both faces, and sheared along the score line. Bending of the edge zone is prevented or reduced by using stepped shearing rolls 5 which restrain the strip adjacent the score line. A suitable score depth for aluminium or its alloys is 20% of the strip thickness on each face.
Patent GB-1328496-A (GB)
Title: Glossmeters
IPC: G01N21/57
Filed: 1969-09-15
Abstract: 1328496 Glossmeter E E JELPKE 14 Dec 1970 [15 Sept 1969] 45328/69 Heading G1A A glossmeter is arranged for transverse movement with respect to a moving web of material. In the embodiment described, Figs. 1, 2 (not shown) two glossmeters (2) of the type described in Specification 930730 are mounted one above and one below the web to be tested which passes between rollers 7, Fig. 2 (not shown). The glossmeters may be traversed by a hand wheel sprocket drive or motor driven (reversible) Figs. 3-5 (not shown). The rollers maintain the material at constant distance from the meters. The cables to the meters are tensioned to avoid fouling.
Patent GB-1332297-A (GB)
Title: Building blocks and structures made therefrom
IPC: E04B2/02
Filed: 1970-11-09
Abstract: 1332297 Building blocks B PARFREMENT and F JAMES 9 Nov 1970 [7 Nov 1969] 54703/69 Heading E1B A dry wall comprises concrete blocks interconnected by joggles 36 made of concrete metal or plastics engaged in undercut grooves 14 in the top surface and in recesses 24 of similar profile at the opposite ends of the bottom surface. Shoulders 20 at the sides of the top edge mate with corresponding projections 30 at the bottom edge. The end blocks of a wall engage between flanges of a pillar and half blocks are provided to offset joints in alternate layers. Grooves 34 in one end face receive ribs of the opposed end face of an adjacent block.
Patent GB-1337531-A (GB)
Title: Mix for use in the production of refractory gas concrete
IPC: C04B28/26
Filed: 1972-03-08
Abstract: 1337531 Refractory gas concrete NAUCHNO-ISSLEDOVATELSKY INSTITUT BETONI I ZHELEZOBETONA GOSSTROYA SSSR 8 March 1972 10719/72 Heading C1H Refractory gas concrete is made from a mix comprising water, a binder including sodium silicate and a substance containing dicalcium silicate, a filler comprising chrome-alumina slag and a refractory containing not less than 62 wt. per cent aluminium oxide each in an amount of 22-32% by weight of the mix and a gas-developing agent. The mix can comprise an aqueous solution of sodium silicate, sodium hydroxide, ground sodium silicate, the powdered filler components, nepheline slurry or ferrochrome slag as the substance containing dicalcium silicate, and aluminium powder as the gas developing agent. The mix is poured into moulds, allowed to set and cured in an autoclave at 170-180‹ C. The concrete produced can be used for lining furnaces and can be used at up to 1200‹ C.
Patent GB-1337807-A (GB)
Title: Rehabilitating chairs for handicapped persons
IPC: A61G5/14
Filed: 1971-07-09
Abstract: 1337807 Invalid chairs K E S WRETHANDER 9 July 1971 32308/71 Heading A4J [Also in Divisions B7 and B8] In a wheel chair which is provided with a lifting mechanism for helping a handicapped person to stand up or sit down, the lifting mechanism comprises, at each side of the chair frame 1, an arm having two pivotally inter-connected parts 8 and 7, the upper part 8 being slidably mounted in a plate 12 connected to the chair frame, having an armpit support 19 at the upper end thereof and such that being pivotally connected to the upper end of a piston rod 17 of a piston and cylinder unit 9 such that upward movement of the piston rod causes upward and forward movement of the upper part of the arm. The front wheels 2 may be connected to the lower part 7 through a linkage (30-36) Fig.2 (not shown) such that on upward movement of the upper part of the arm the front wheels move forwardly to maintain the stability of the chair. Foot rests mounted on the chair may be connected to the arm in such a way that the foot rest is raised or swung away as the arm is straightened out and lowered or swung forwards as the arm is lowered. The motor which controls the pumping of oil to the hydraulic unit may be  used to drive the chair. The upper portion (8') Figs.3 and 4 (not shown) of the upper part 8 of the arm may be vertically adjustable with respect to the lower portion to which the piston rod 17 is attached. A vertically adjustable backrest (37) and seat member (38) which fits in a recess in the chair seat (39) may be attached to a post (40) one end of which is pivoted to the upper portion 8'. Laterally adjustable shoulder yokes (43) may be provided. The armpit supports may be laterally adjustable.
Patent GB-1342235-A (GB)
Title: Manufacture of chains
IPC: B21L15/00
Filed: 1970-01-20
Abstract: 1342235 Making chairs; welding by pressure NORBRIT-PICKERING Ltd 18 Jan 1971 [20 Jan 1970] 2602/70 Headings B3A and B3R A chain of heat treatable metal has its links hot formed with sufficient heat to permit heat treatment on each link immediately after it has been formed. This heat treatment may consist of normalizing or quenching. A stud link chain may be formed at a plurality of stations disposed in a circle around a rotating head which carries the workpiece. The link is made from a cut length of the metal which is heated, bent and then welded in the same heat, or alternatively extra resistance heating may be provided for welding and subsequent fitting of the stud.
Patent GB-1343306-A (GB)
Title: Moulding sintered at a high temperature
IPC: B22F7/00
Filed: 1971-04-19
Abstract: 1343306 Producing sintered mouldings FELDMUHLE ANLAGEM-UND PRODUKTIONS GmbH 19 April 1971 [11 April 1970] 9797/71 Heading C7D A sintered moulding comprising a refractory metal oxide admixed with W +/ or Mo and comprising strata with different metal contents is manufactured by calcining a stratified body containing the refractory metal mixed with tungsten oxide and/ or molybdenum oxide in a reducing atmosphere to form the W and/or Mo in situ. Suitable refractory oxides comprise those of Al, Mg, Be and Y. Calcination is carried out between 600+1000‹C (preferably 800-1000‹C) and may be preceded by an oxidation step at about 500‹ C. The strata may range for example from 100% Mo to 100% aluminium oxide. This facilitates soldering and welding with other metals The body may be used as an electric insulator.
Patent GB-1343572-A (GB)
Title: Containers with safety closures
IPC: B65D50/04
Filed: 1972-05-01
Abstract: 1343572 Safety closures W LEEDS and L A MICALLEF [trading as LEEDS & MICALLEF] 1 May 1972 20137/72 Heading B8T A safety closure .includes a cap 22 having thread elements 36a-36d and a container neck having two threaded zones 38 and 52. When the cap is fully applied, the thread elements 36a- 36d are in the position shown in Fig. 3. In order to remove the cap, it is unscrewed until thread element 36a comes into contact with cam surface 46 which raises the element up into an interference zone 42 where the thread elements 36a- 36d form interference fits in the gaps between corresponding projections 54a-54d on the container neck, Fig. 5 (not shown). The cap must then be both pulled and twisted to clear the interference: further twisting causes the trailing end of the thread element 36d to cam up the surface 48 on the container neck, until the elements 36a-36c engage the under-side of the thread 40, the thread element 36d being the first to disengage as the cap is screwed off. In a modification, Figs. 9-12 (not shown), the thread element (36a<1>) is obstructed.by a vertical surface (46<1>) so that the cap must be pulled axially to force the element (36a<1>) into the interference zone (42<1>) after which further screwing causes the element (36d<1>) to abut a vertical surface (48<1>). The cap must then be screwed in a reverse direction in order to clear the trailing end of the element (36d<1>) from a projection 56 on the thread of the container neck. The thread elements are then in position, Fig. 12 (not shown), for the cap to be screwed off with the element (36d<1>) leading. The container and closure may be made from plastics or glass, and a seal is provided either by a liner (34), Fig. 2a, (not shown), or by an annular lip depending from the inside of the end wall 30 of the cap.
Patent GB-1343605-A (GB)
Title: Vehicle window regulators
IPC: E05F11/44
Filed: 1971-02-08
Abstract: 1343605 Vehicle window regulators WILMOT-BREEDEN Ltd 4 Feb 1972 [8 Feb 1971] 4157/71 Heading E2M A vehicle window regulator comprises a rotatable toothed segment 6 and a window lifting arm 9 which extends across the segment in such a manner that a line L from the rotational axis 7 of the segment and perpendicular to the longitudinal axis A of the arm intersects the arm, the arm being rigidly attached to a mounting 8 on the segment on the side of the line L remote from the end 10 for connection to the window. In order to track non-planar movement of the window the arm 9 and/or bracket 8 may be flexible, or the bracket may include a block of elastomeric material. The components of the regulator can be assembled for either left hand or right hand windows. (For Figure see next column)
Patent GB-1346603-A (GB)
Title: Hovercraft
IPC: B60V1/00
Filed: 1971-02-18
Abstract: 1346603 Air cushion vehicles F C GUNTHER 18 Feb 1971 21032/73 Divided out of 1346602 Heading B7K The disclosure is the same as that in Specification 1,346,602 with the addition of an embodiment of a toroidal inflatable cushion containing member, (Fig. 7, not shown) the claims being directed to the provision on the surface of the cushion containing member 16 in proximity to the surface over which the craft operates of a plurality of planing steps 28 having their axes inclined to the longitudinal axis of the craft and cavitation occurs forming passageways for cushion air to pass under the cushion containing member.