baber/WOPTO huggingface dataset:
Patent GB-1346800-A (GB)
Title: High pressure laminates with deeply embossed surfaces
IPC: B44C5/04
Filed: 1971-11-22
Abstract: 1346800 Laminates ESSO RESEARCH & ENG CO 22 Nov 1971 [1 Dec 1970 9 Aug 1971] 54122/71 Heading B5N A decorative laminate of which the top surface is embossed and debossed to provide a surface variation in thickness greater than 7 mils. in which the debossed portions are fully consolidated, and of which the bottom surface is relatively flat, is produced by (A) assembling in a stack (1) a relatively flat backing die, (2) a plurality of phenolic-formaldehyde resins impregnated paper core sheets, (3) an aminoformaldehyde resin impregnated print sheet, e.g. of α cellulose paper (4) a decorative sheet of thickness variation greater than 7 mils. which may be impregnated with aminoformaldehyde resin, (5) a melamine-resin impregnated α-cellulose overlay sheet, (6) a cushion layer, e.g. a silicone rubber pad of durometer hardness 50-75 or other rubber pad of polyurethane or reinforced neoprene or a thermoplastic layer, and (7) a fronting die, (B) pressing the assembly under 500-1200 p.s.i. and 260-310 F. to effect lamination and to cure the resin impregnated sheets and (C) stripping the dies and cushion layer from the laminate. The decorative sheet may have openings passing therethrough and may be of paper woven cane or burlap, woven paper or lace. The thermoplastic layer used as a cushion layer, which is in a fluid state during the laminating procedure, may comprise extruded polyethylene film of 6-12 mils. thickness. A parting sheet which may be of Kraft paper bonded to aluminium foil or paper impregnated or coated with fluorocarbon resin, silicone oil or resin or sodium alginate, is used between the cushion layer and overlay sheet when the cushion layer is of thermoplastic material. The print sheet may be impregnated with dye or overprinted with a suitable colour and/or design.
Patent GB-1329830-A (GB)
Title: Offshore installations
IPC: E02B17/08
Filed: 1970-11-13
Abstract: 1329830 Offshore platforms with rack and pinion jacks ARMCO STEEL CORP 13 Nov 1970 [14 Nov 1969] 54138/70 Heading B8J Legs 2 of an offshore platform 1 each comprise three columns 5 interconnected by braces 6, 7 and are raised and lowered by rack and pinion jacks 20. Each column 5 has a dual rack 11 (i.e. a rack with two opposed sets of teeth 12, 13) and to avoid disengagement from the drive pinions 41 the latter are arranged in pairs as shown in Fig. 5. Each pinion 41 is driven by its own electric motor 47 via a speed reducing gear-box 47. The flat faces 14 of the racks 11 engage respective guides 62.
Patent GB-1482686-A (GB)
Title: Catalyst compositions especially useful for preparation of unsaturated acids
IPC: C07C51/00
Filed: 1974-12-17
Abstract: 1482686 Oxidation catalyst STANDARD OIL CO 17 Dec 1974 [26 Dec 1973] 54373/74 Heading B1E [Also in Division C2]  An oxidation catalyst composition for the conversion of acrolein or methacrolein to the corresponding acids consists of oxides or oxide complexes of tungsten, vanadium, molybdenum and uranium or thorium or a mixture thereof. It may further contain one or more of Fe, Co, Ni, Zn, Cn, Mg, Mn, Bi, Ti, Zr, Sn, P, alkali metal, alkaline earth metal, lanthanium or the lanthamides and may have the empirical formula where A is Fe, Co, Ni, Zn, Cu, Mg, Mn, Bi, Ti, Zr, Sn, P, an alkali metal, an alkaline earth metal, lanthanum or a lanthanide or mixture thereof; D is U and/or Th; a is 0 to 5; b, c and d are 0.1 to 10; e is 6 to 16; and x is a number to satisfy valency requirements. The composition may comprise a support, e.g. silica, alumina, zirconia, titania, silicon carbide or boron phosphate. The catalyst may be prepared by combining precursors in an aqueous slurry, evaporating to dryness and calcining. Suitably, the preparation is such as to provide molybdenum in a state partially reduced below the hexavalent. The Examples describe the formation and use of U 2 W 1À2 V 3 Mo 12 O x .
Patent GB-1115793-A (GB)
Title: Improvements in or relating to ventilators
Inventor: LAMBIE HOWARD RUSSELL
IPC: F04D25/14
Filed: 1964-06-22
Abstract: 1,115,793. Ventilators. COLT VENTILATION & HEATING Ltd. 18 June, 1965 [22 June, 1964], No. 55154/66. Divided out of 1,115,791. Heading F4V. The subject-matter of this Specification is substantially the same as that described in Specifications 1,115,791 and 1,115,792 but the claims are concerned in the main with the non- return shutter.
Patent GB-1126660-A (GB)
Title: Improvements relating to photographic apparatus
IPC: G03B17/24
Filed: 1966-12-14
Abstract: 1,126,660. Photographic camera. INTERNATIONAL POLAROID CORP. Dec.14, 1966 [Dec.30, 1965], No.56024/66. Heading G2A. A photographic camera includes a lightattenuating member mounted within the camera for movement into and out of engagement with the photo-sensitive material, and coupling means responsive to operation of the manual shutteractuating means for engaging the member with the sensitive material to cause the configuration of the member to be recorded thereon. As shown in Fig.2, the camera forms two indentical composite images having recorded thereon markings 26, 32 carried by the member 24. The member 24 is pivoted at its upper edge, the lower edge being biased away from the sensitive material folded in a film supply magazine 72. Depression of the shutter release 10 acts, through a biased lever and a projection 16, on an L-shaped lever 18 which causes the member 24 to engage the sensitive material against its bias. The camera may contain two similar vertically separated optical systems, Fig.6 (not shown), each comprising two lens systems, one lens system being within the camera and the other without. The internal lens systems project via a mirror, two similar images of e.g. a record card on to the sensitive material, and the external systems project two images of an external object on to the same material.
Patent GB-1359700-A (GB)
Title: Simultaneous digital transmission in both directions over one line
IPC: H04L5/14
Filed: 1971-12-03
Abstract: 1359700 Two to four wire converters RCA CORPORATION 3 Dec 1971 [9 Dec 1970] 56150/71 Heading H4R Transmitter T is coupled to a line L by resistors R t1  and R t2  and a differential amplifier receiver R is connected to the resistors R t1 , R t2 , by a network of resistors forming a bridge circuit preventing cross talk from the transmitter T to the receiver R while allowing coupling between the transmitter or receiver and the line. The resistors R t1  and R t2  are arranged to terminate the line in the correct impedance. Modifications of the system provide for unipolar signalling, Fig. 2 (not shown), and unbalanced line with either bipolar, Fig. 3 (not shown) or unipolar, Fig. 4 (not shown) signalling.
Patent GB-1410699-A (GB)
Title: Dielectric lens antennas
IPC: H01Q15/02
Filed: 1973-12-06
Abstract: 1410699 Aerials POST OFFICE 6 Dec 1973 [15 Dec 1972] 56635/73 Heading H4A A dielectric lens for a radio wave aerial is formed of a solid dielectric material having a zone cut-out therefrom and filled with an artificial dielectric, that is, an arrangement simulating the properties of a diele tric material by reason of its comprising a three dimensional array of metallic conductors. As described, a planar-hyperboloidal dielectric lens 34, Fig. 3, converts spherical wave-fronts from a radio source 32 into plane wave-fronts 36. A cylindrically shaped zone 44 of depth T is cut from the planar face of the lens 34, and is filled with an artificial dielectric material of, for example, the egg-crate type. To maintain the plane wavefronts 36, it is necessary that the difference between the number of wavelengths over the depth T when containing the original dielectric material, and when containing the artificial dielectric material, is a whole number N. That is : T/(#d/n0)-T/(#d/na)=N or T=N#d/(n0-na), where, #d is the free space wavelength at a design frequency fd; n0 is the index of refraction of the original dielectric material; na is the index of refraction of the artificial dielectric material. With a parallel-slat type of artificial dielectric material construction, the apparent index of refraction n<1>a at any frequency f is given by n<1>a=[1-(#/#c)<2>]<¢> where X is the free space wavelength at the frequency f, and #c is twice the slat-to-slat spacing in the artificial dielectric material. It is shown mathematically in the Specification that the construction with use of an artificial dielectric material improves the operating bandwidth; and it is stated that optimally the product of n0 and na should be unity. A series of stepped zones, instead of a single zone, may be used. Quarter-wave matching sections may be provided on the faces of the lens, and also-at the interface between the normal dielectric material (the latter can be a simple air gap). In another embodiment, a planar-hyperbolic cylindrical lens 60, Fig. 6, has a plate 62 of artificial dielectric material let into its planar face.
Patent GB-1427442-A (GB)
Title: Schiff bases derived from phenanthrene-9,10-diamines and orthohydroxy aldehydes and metal chelate pigments thereof
IPC: C07D215/22
Filed: 1973-12-07
Abstract: 1427442 Phenanthrene-Schiff bases and their metal complexes E I DU PONT DE NEMOURS & CO 7 Dec 1973 [8 Dec 1972] 56832/73 Heading C4P [Also in Division C2] Schiff bases have the formula wherein D 1  represents the atoms necessary to complete a phenanthrene nucleus having the indicated nitrogen atoms in the 9,10 positions and D 2  represents the atoms necessary to complete a nucleus of formula wherein each X is independently Cl or Br. Metal chelates of these compounds have formula wherein Me is Ni, Co or Cu. The pigments are prepared by condensation of a phenanthrene- 9,10-diamine with an o-hydroxyaldehyde, followed by metallization in a high boiling solvent, using the metal salt of an organic acid, and are yellow in colour.
Patent GB-1248608-A (GB)
Title: A machine for the production, filling and closing of a plastics container and a method of sterilising the machine
Inventor: HANSEN GERHARD
IPC: B29C49/30
Filed: 1968-12-03
Abstract: 1,248,608. Blow-moulding; filling. G. HANSEN. 3 Dec., 1968 [20 Dec., 1967], No. 57208/68. Heading B5A. [Also in Division B8] In a machine for the production, filling and closure of thermoplastics containers, an extrusion apparatus 4, 5 extrudes a thermoplastics tube 7 into the lower mould halves 12 which move together to receive the tube 7 and upper mould halves 16, the tube being closed at its base in the mould 12 and being cut off at the top by a knife 8 while being held in a vacuum chamber 14. The moulds 12, 16 then travel on a support 2 to a position below a filling device 6 which is lowered on to the lower mould half 12, and compressed air, blown in through a pipe 9, blow moulds the tube 7 against the wall of the mould. Filling material is then supplied to the container which material forces the air out. After filling, the device 6 is raised and the mould halves 16 close to form the closure of the container. On switching off the source of vacuum to the chamber 14, the mould halves open, the filled container is discharged, and the mould returns to a position beneath the extruder mouth piece 4 to receive another tube 7. A tangential fan may be used to produce a constant pressure in the extruded tube, and air supplied by the fan may be sterilized by a cartridge heater. The air pipe 50 and the extruder mouthpiece 4, the air pipe 9 and the filling device 6 are sterilized before operation (see Division B8).
Patent GB-1377514-A (GB)
Title: Illuminated direction-indicating and advertising device
IPC: G09F11/02
Filed: 1971-12-14
Abstract: 1377514 Illuminated display L M D F F PINTO 14 Dec 1971 [28 Oct 1971] 57945/71 Heading G5C [Also in Division E1] An illuminated display consists of an advertisement display frame 10 fixed or rotatably mounted on a column 1 and illuminated signs 4 indicating place or street names and secured by hinges 5 to the column.
Patent GB-1255649-A (GB)
Title: Stain-resistant moulding compositions
Inventor: STANDISH NORMAN WESTON
IPC: C08G12/26
Filed: 1968-12-06
Abstract: 1,255,649. Modified melamine/aldehyde resins. STANDARD OIL CO. 6 Dec., 1968, No. 58042/68. Heading C3R. A resin is prepared by reaction of 2 : 2<SP>1</SP>- (1 : 2 - cyclobutylene) - bis - (4 : 6 - diamino - striazine), melamine and an aldehyde. Formaldehyde is preferred. The resin is mixed with fillers and additives to give moulding compositions. Suitable fillers are clay, asbestos, cellulose, paper and fibres. Preferred proportions are 0.1-20 moles of the diguanamine per mole of melamine, and aldehyde between 1 mole per mole of diguanamine plus melamine and 8 moles per mole of diguanamine plus 3 moles per mole of melamine. In an example aqueous formaldehyde, melamine and the diguanamine are condensed in a 7 : 3 : 1 molar ratio, and the product blended with TiO 2 , Zn stearate and α-cellulose pulp and dried to give a moulding powder. A table shows the effect of varying these proportions on the properties of the moulded product.
Patent GB-1284010-A (GB)
Title: Improvements in or relating to photoelectric monitoring devices
IPC: G06K13/067
Filed: 1970-12-10
Abstract: 1284010 Feeding and delivering sheets SIEMENS AG 10 Dec 1970 [11 Dec 1969] 58622/70 Heading B8R [Also in Division G1] A photo-electric device for detecting incorrect extraction of single sheet data carriers in data processing systems and for producing a fault signal comprises photo-electric scanners AB1, AB2, one on each side of a conveyer track, e.g. a conveyer path extending out of the plane of Fig. 1, each scanner comprising a light source GL and a photo-electric transducer TF1, (TF2), Fig. 2 (not shown), and having optical conductors L11, L12, (L22) obliquely disposed one to another and to the faces F1, F2 of the scanners which form guide surfaces of the conveyer track, so that light reflected from an opposite guide surface or a sheet thereon can be viewed by the transducers TF1, (TF2), e.g. to detect double feed, the light exit and entry surfaces of the optical conductors being flush with said guide surfaces and a suction passage SK being provided in each scanner to withdraw air from between said opposed guide surfaces, e.g. so that double sheets are attracted one to each scanner, the resultant photo-electric currents being analysed as incorrect feed and causing a fault signal to be generated. Scanning devices may be staggered along the conveyer track to allow overlapping sheets to count as correctly fed sheets. The guide surfaces may be spaced a distance a just sufficient to allow two sheets to pass freely.
Patent GB-1299897-A (GB)
Title: Flexible-band fastening device
Inventor: BILLARANT PATRICK
IPC: A44B18/00
Filed: 1969-12-05
Abstract: 1299897 Fastening device VELCRO-FRANCE 5 Dec 1969 [5 Dec 1968 1 April 1969] 59588/69 Heading E2S A fastening device comprises a flexible band 1 which may be of plastics material on whose surface are rectilinear elements 3 with bulbous heads 4, and a second flexible band 2 which may also be plastics, having loops 5 formed from synthetic textile fibres provided on its face. When the bands 1, 2 are pressed together the elements 3 and loops 5 interengage strongly but can be separated by force. . In a second embodiment. Fig. 2 (not shown) band 2 is formed e.g. by a non-woven fabric of which one face is felted (15). The face (15) may alternatively be formed as a mesh or an openwork fabric of synthetic textile fibres.
Patent GB-1394617-A (GB)
Title: Apparatus equipped with spraying means for the treatment of metal surfaces
IPC: B08B3/08
Filed: 1972-12-27
Abstract: 1394617 Apparatus for spraying metal surfaces with cleaning or corrosion coating solution NIPPON PAINT CO Ltd 27 Dec 1972 [24 Dec 1971] 59683/72 Heading C7E and C7U Metal surfaces are sprayed with e.g. degreasing agents or phosphating, chromating or oxalate solutions by passing articles 11 along an overhead conveyor 12 through a spray chamber 13. The articles are rinsed with water in the chamber, and the rinse water is returned through the treatment stations and removed as vapour. As shown, nozzles 14A to 14E spray degreaser, water zinc phosphating solution, water, and acid solutions respectively, the solutions returning to tanks 16A to 16E. The tanks may be heated and provided with liquid level gauges which may actuate magnetic valves. Excess water is removed as vapour through ducts 30A, 30C. The ducts may be forked Fig. 2, (not shown). Plates 32A, 32C prevent liquid from the chemical solutions being withdrawn. The water is condensed into reservoirs 36, 36<SP>1</SP>, and reused. Fresh air may be introduced through ducts 33A to 33E. In a modification Fig. 3, (not shown) the water instead of overflowing is returned by  spraying.
Patent GB-1375963-A (GB)
Title: Data handling systems
IPC: G06K7/10
Filed: 1970-12-17
Abstract: 1375963 Light pens PLESSEY CO Ltd 9 Dec 1971 [17 Dec 1970] 59870/70 Heading G1A [ Also in Division G4]  A hand held light pen with a light source and photo-electric sensor has a plurality of light fibre guides with a central fibre supplying reflected light from a data carrier to the sensor and further fibres around and contacting the central fibre supplying light from the source to the carrier. The carrier may have data in the form of black and white bars with humanly readable data printed in an ink to which the light pen is not sensitive.
Patent GB-1261030-A (GB)
Title: Steel making installation
IPC: C21C5/28
Filed: 1968-12-18
Abstract: 1,261,030. Transporting special loads. ALLIANCE MACHINE CO. 18 Dec., 1968 [22 Dec., 1967], No. 60241/68. Heading B7L. [Also in Divisions C7 and F4] A basic oxygen-type steelmaking installation includes a mobile converter which moves on intersecting tracks between various operating stations, the converter body being supported on at least four trucks each of which is pivotable about its vertical axis; there is also provided at each rail intersection a lifting device such as a jack to lift the convertor vehicle so that the trucks may be rotated into alignment with the alternative tracks. As illustrated convertor body B held in trunnion ring 10 is mounted in frame C by bearings 11, 12 and is tiltable by gear 21, the frame being recessed to allow pouring. The frame is mounted on four trucks such as H and I which are propelled along paired rails 30, 31 and 32, 33 by motors 76, 76<SP>1</SP>. Each truck consists of a frame 50 on which are mounted four wheels e.g. 72, 73, the frame being rotatable on bearing plates 62, 63 about pillar 50 welded to frame C. At each track intersection there is provided a floor-mounted rack R, the ram 83 of which engages foot 53 to lift the frame enabling the truck to be rotated into alignment with alternative tracks 35 by double-acting fluid pressure cylinders such as 90, 91. The foot 53 may be mounted on the ram of a hydraulic jack M built into the truck as an alternative or additional means of raising the latter.
Patent GB-1214569-A (GB)
Title: Improvements in or relating to apparatus for controlling the number of copies produced by a duplicator
IPC: B41L19/00
Filed: 1968-10-07
Abstract: 1,214,569. Printing apparatus. A. B. DICK CO. 7 Oct., 1968 [19 Oct., 1967], No. 60598/69. Divided out of 1,214,568. Heading B6C. The number of copies produced by a duplicater or printing press from a single master is controlled by electrical comparison of a code, indirectly indicative of the number of copies desired, on the master with an electrical output from a sheet counter. Preferably the master bears a binary coded number, sensed by a plurality of individual sensing units, shutting-off of the duplicator or printing press takes place when the number of sheets printed and the number coded indirectly reach a preset total. The code on the master may be a binary number and be sensed optically, or may be in the form of magnetic ink markings.
Patent GB-1316540-A (GB)
Title: Fuel element for nuclear reactors
IPC: G21C3/28
Filed: 1971-12-30
Abstract: 1316540 Fuel elements COMMISSARIAT A L'ENERGIE ATOMIQUE 30 Dec 1971 [8 Jan 1971 7 Dec 1971] 60669/71 Heading G6C A fuel element for a high-temperature reactor comprises a fuel portion or compact of generally annular shape surrounded internally and externally by a coating formed of a felt or fabric of carbon, especially carbon in the form of graphite, which coating is bonded to the fuel portion. The fuel portion may comprise a stack of annular segments formed from beads of weakly enriched U-oxide or carbide coated with SiC 2  orpyrocarbon, mixed with a graphite powder and then compacted to form the segments. In one embodiment, felt or fabric is bonded to the fuel portion by impregnating the felt or fabric with gaseous hydrocarbons, followed by pyrolysis at between 800 and 1200 C. Cooling fins can be provided on the felt or fabric after this has been placed in position, using the same method of bonding. It is advantageous to incorporate a thermosetting resin in the graphite powder within which the fuel particles are embedded, and also to bond the felt or fabric to the fuel portion by means of a mixture of graphite powder and thermosetting resin with which the felt or fabric is impregnated. A heat treatment which is carried out on the fuel portion either before or at the same time as a similar heat treatment of the felt or fabric comprises heating to 180 C. to polymerize the resin, followed by a curing treatment at 800 C. which results in partial decomposition of the resin, and this is followed in turn, if necessary, by a final heating operation in vacuo at 1800 C. to ensure elimination of gas. Suitable resins are those of the phenol-formaldehyde or phenolic resin types.
Patent GB-664397-A (GB)
IPC: C21D9/56
Abstract: 664,397. Counter-balancing apparatus. DREVER CO. June 25; 1947. [June 27, 1946] No. 16746/47. Class 78 (ii). [Also in Group XII] To provide a continuous feed of strip metal to an annealing furnace from an intermittent supply from separate coils, the strip is passed through a looper 20. The looper includes a frame 21 in the upper part of which are journalled rollers 24, and a lower vertically movable carriage 22 carrying rollers 23, the strip passing up and down in vertical loops over the rollers 23, 24, movement of the carriage 22 taking up surplus strip or allowing it to be fed out. A torque motor 26 driving hoisting drums 27 mounted on the frame 21 is constantly energized to exert a controllable upward force on the carriage 22 sufficient partially to counterbalance its weight but not to raise it.