baber/WOPTO huggingface dataset:
Patent GB-830273-A (GB)
Title: Improvements in mirror systems, particularly for infra-red spectral apparatus
Inventor: RIESENBERG HORST
IPC: G01J3/42
Filed: 1956-09-25
Abstract: 830,273. Optical systems. ZEISS JENA C. VEB. Sept. 25, 1956, No. 29312/56. Class 97(1) A mirror system particularly for infrared spectral apparatus, for obtaining two identical images of a linear light source comprises two concave mirrors of equal curvature with their optic axes parallel and combined with plane mirrors so that the central rays of the beams between each plane mirror and its associated concave mirror are parallel. The system may be used in reverse to produce a single image from two identical images. As shown light from a source L is focused by a concave mirror 13 on to a rotating mirror 11 the beam reflected by the latter being directed by a plane mirror 6 to a concave mirror 9 which forms an image O 1  of the source and the beam passing the mirror 11 being reflected by plane mirrors 7, 8 to a concave mirror 10 to form an image O 2 , the axes of the mirrors 9, 10 being parallel and the axes of the beams between the mirrors 8, 10 and 6, 9 also being parallel. The rotating mirror may be replaced by a beam splitter and the mirror 13 may be omitted. Alternatively two separate beams from the source may face directly on the mirrors 8, 6, the mirror 7 being omitted. Fig. 4 shows a system for infra-red photometering in which two concave mirrors 3, 4 with parallel axes form images O 1 , O 2  of a source L of light reflected by mirrors 1, 2. The images are formed at the cells 14, 15 of a photometer. Light from the image O 1  is focused on a rotating mirror 12 by a concave mirror 10 and plane mirrors 7, 8, while light from the image O 2  is also focused on the mirror 12 by a concave mirror 9 and plane mirror 6. The two beams are alternately directed by the rotating mirror 12 on to a concave mirror 13 which forms images of O, and O 2  at S.
Patent GB-174170-A (GB)
Title: Improvements in variable speed gearing
IPC: F16H37/08
Filed: 1920-10-16
Abstract: 174,170. Aymard, M. r. L. A. Oct. 16, 1920. Variable-speed and reversing gearing, suitable for motor vehicles, of the kind in which a movable disc 1 drives rollers 2, 3, which are connected through an epicyclic train 10, 11, 12, Fig. 1, is combined with an inner differential or balance gear 14<1> having a casing 28. The driven element of the variable-speed gear is the carrier of the planet gears 12, which takes the form of a diametral spindle 14 passing through the casing 28. The rollers 2, 3 are secured respectively to the side gears 10, 11 and supported on ball bearings. The disc 1 may be slid laterally in its own plane, or may be adapted to swing about a pivot 59, Fig. 3. The epicyclic train is contained in a fixed casing 46.
Patent GB-159319-A (GB)
Title: Improvements in or connected with carburetters for internal combustion engines
IPC: F02M1/00
Filed: 1919-11-25
Abstract: 159,319. Kenyon, G., and Needham, T. Nov. 25, 1919. No Patent granted (Sealing fee not paid). Spray carburettors.-A float chamber b supplying a known type of carburettor c has a domed cap f and is connected with the induction pipe a by a pipe k<3> and a passage k formed either in the side or the cap of the chamber. Fuel enters at f<1>, and is controlled by a valve f<2> under the action of a float g and crossed levers h<1>, h<2> engaging a collar i. The fuel is directed by a curved pipe j to that side of the float chamber opposite the suction passage k, the entry of fuel into which is prevented by a baffle k<1>. The cap is cut away at f<3> to allow of the suction being transmitted to the float chamber. Fuel flows to the nezzle through passage e<3>. The carburettor has an air shutter d<1> actuated by an arm d<2>.
Patent GB-795166-A (GB)
Title: Improvements in or relating to the fabrication of hollow airfoil blades
IPC: B21D11/20
Filed: 1956-09-26
Abstract: 795,166. Making airfoil blades; angular bending. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Sept. 26, 1956 [Sept. 29, 1955], No. 29373/56. Classes 83 (2) and 83(4). A machine for forming hollow airfoil blades comprises a mandrel shaped as an airfoil, a pair of forming rolls having parallel axes, means for supporting said rolls adjacent the nose of the mandrel but spaced sufficiently therefrom for a blade blank to be placed between the mandrel nose and the rolls, means for moving said mandrel and a blade blank between said rolls, and means for applying pressure to said rolls for pressing the blade blank against the sides of the mandrel as the mandrel and blank move between the rolls. A blade blank 28 placed on parallel rolls 24 is pressed therebetween by an airfoil-shaped mandrel 20 moved downwardly by fluid-pressure means 23, fluid-pressure means 27 at the ends of each roll 24 forcing the blank 28 into close contact with the sides of the mandrel 20 as the mandrel passes between the rolls. The formed blank is then removed from the mandrel and its trailing edges are pressed together, welded and then machined and ground to remove welding burrs and inequalities. The airfoil blade thus formed is then mounted on the rotor of a centrifugal fan. The mandrel 20 may be of organic material, e.g. wood, for cold forming or of metal for hot forming. The mandrel may be formed of spaced-apart sections 20a, Fig. 6. Instead of the rolls 24 engaging the blank, rolls 30, Fig. 7, backed up by the rolls 24, may do so. A further pair of rolls 34 may be mounted below the rolls 24, Fig. 8, or 30, to press the blank on to the mandrel 20 to reduce spring- back. A tapered mandrel 46, Fig. 10, of airfoil section may be used, in which case the ends of the mandrel 46 may be moved at different rates by fluid-pressure means 49, 50. A cam 64 on a piston-rod 52 of the means 50 may actuate a valve 62 controlling the other fluid-pressure means 49. Independent rolls 70, 71, 72 on common shafts, Fig. 14, or independently mounted urged rolls 70a, 71a, 72a, Fig. 15, may replace the rolls of Fig. 10.
Patent GB-1037257-A (GB)
Title: Contact noise suppressors
IPC: H04L12/02
Filed: 1963-07-25
Abstract: 1,037,257. Transistor circuits for eliminating contact bounce effects; telegraphy. WESTERN ELECTRIC CO. Inc. July 25, 1963 [Aug. 30, 1962], No. 29438/63. Headings H3T and H4P. The effect of bounce of a contact connecting a source to a load is suppressed by discharging a condenser through the load when the contact is opened, the discharge being terminated at a predetermined point so that, for example, the current is sustained during the bounce but is not unduly prolonged when the contact is opened. When the teleprinter contact 2 of a frequency shift system is closed the load 1 is energized and a capacitor 8 connected to a point between the contact and the load is rapidly charged through a transistor 6. If the contact bounces the load current is maintained by discharge of the condenser. The contact is opened at the end of the signal but the current in the load is not unduly prolonged because, when the condenser has discharged to a point determined by the potentiometer 4, 5 connected across the source, the transistor cuts off and the discharge ceases.
Patent GB-1217352-A (GB)
Title: Foamed polylactams and production thereof
IPC: B29C39/24
Filed: 1968-06-20
Abstract: 1,217,352. Moulding plastic substances. E. I. DU PONT DE NEMOURS & CO. 20 June, 1968 [20 June, 1967], No. 29565/68. Heading B5A. [Also in Division C3] A foamed polylactam article is made by adding a blowing agent under pressure to a molten lactam which is then polymerized in the presence of lactam-base salt and polymerization promoter in a mould cavity under a pressure at least sufficiently to maintain the blowing agent in the resulting polylactam, and after the lactam is completely polymerized an exit post communicating with the mould is opened whereby pressure on the polylactam is reduced and the polylactam is ejected out of the mould to form a solid foamed moulded article. The lactam may be caprolactam, caprylolactam and/or laurolactam. The blowing agent may propane, butane and/or pentane or propylene, cyclopropane, argon or nitrogen. The drawing shows the production of a foamed polylactam from #-caprolactam, promoter e.g. poly-{ 2,2 - propane bis-(4-phenylene) carbonate }, anionic catalyst, i.e. lactam-base salt e.g. made from potassium stearate and sodium hydride and rafactant which also acts as mould release agent. The moulded foamed polycaprolactam may be in the form of a hallow cylinder which may be cut and flattened in a press to form a
Patent GB-277529-A (GB)
Title: Improvements in and relating to embossing presses
IPC: B21D37/04
Filed: 1926-11-23
Abstract: 277,529. Brecknell, W. H. Nov. 23, 1926. Embossing-machines.-To facilitate the movement of a pressure-receiving platen 1, which is slidably mounted on an inclined base 2 below a presser member 20 so as to be adjustable for height, the platen is adapted to be raised on to supporting-rollers 27 arranged on pivoted arms 28 connected together by a rod 29, one arm 28 being linked to an operating lever.
Patent GB-1136032-A (GB)
Title: Laser communication system
IPC: H04B10/112
Filed: 1966-07-01
Abstract: 1,136,032. Lasers. INTERNATIONAL STANDARD ELECTRIC CORP. 1 July, 1966 [6 July, 1965], No. 29689/66. Heading H1C. [Also in Division G1] In a laser communication system an auxiliary high power laser beam is provided to vaporize atmospheric moisture along the communication beam path. The diameter of the communication beam is made greater than the high power beam. The wavelengths of the communication and high power beams are chosen for minimum and maximum absorption by moisture respectively. The high power beam may be switched on automatically by means which detects when the interference with the communication beam is greater than a predetermined amount. In a two-way communication system an auxiliary high power laser is provided at each station, and an automatic aiming control system may be provided. The lasers used may be (1) solid including ruby; rareearth, trivalent uranium, or (2) gaseous, including He-Ne, noble gas and caesium vapour, or (3) semi-conductor including GaAs diodes, or (4) fibre cavity lasers or liquid and organic lasers. For the communication beam, the modulation may be external using the Pockel, Kerr or Faraday effect, conductivity modulation and ultrasonic pressure effects. Alternatively, internal modulation such as hair trigger, Zeeman or Stark modulation or geometry variation may be used.
Patent GB-1317942-A (GB)
Title: Printing plates
IPC: H04N1/52
Filed: 1970-06-19
Abstract: 1317942 Printing plates NETHERLANDS CENTRAL ORGANISATION FOR APPLIED SCIENTIFIC RESEARCH 19 June 1970 [19 June 1969] 29894/70 Heading B6C [Also in Division H4] A set of half-tone (screened) colour-separation printing plates are produced by scanning the original once only and forming a first plate for one colour with dots at the corners of squares whose sides have a length of s and one or more other different plates for the other colours whose dots are at the corners of squares whose sides are angularly rotated by an angle having a tangent P/n in relation to the sides of the squares on the first plate and have a length where x is a scale factor e.g. 1 or ¢, and n and p  are integers. As described the original is preferably mounted on a cylinder, the plates for the separate colour-separations being mounted on cylinders coaxial therewith. The original is scanned in a helical path once only, and dots are formed in response to the resulting signals at different points on each of the printing plates e.g. by respective electron beam recorders of the type described in Specification 1,269,156. With the helical pitch equal to s the first plate comprises dots at points P 1 , P 2 , P 3  etc., Fig. 1, and the other printing plates may have dots formed as shown in Figs. 2, 2a, 3, 4 and 5 where n= 1, 1, 2, 3 and 4 respectively, p is 1 in all the Figs. and x is 1 in Figs. 2-5 and ¢ in Fig. 2a. As shown in Figs. 2a, 3, 4 and 5 not all the points lie on the line of the helical scan, and for these displaced dots the electron beam of the particular exposing apparatus is deflected to one side of the helical scan for the appropriate dots The squares may be rotated to the left as shown, or to the right of the helical scanning path.
Patent GB-901558-A (GB)
Title: Process for dyeing wool
Filed: 1960-08-30
Abstract: Wool is dyed from an acid bath containing a 1 : 2-chromium or cobalt-complex compound of a monoazo dyestuff which complex is free from sulphonic and carboxylic acid groups, a water-soluble p  basic organic nitrogen compound that owes its solubility in water to a grouping containing a basic nitrogen atom and contains at least one aliphatic residue with at least 8 interconnected carbon atoms, and a non-ionic or anionic dispersant.  The dyebath may also contain sodium sulphate and may be acidified with acetic, formic or sulphuric acid. Dyeing is effected at temperatures up to the boil.  Amongst the suitable organic nitrogen compounds specified are ethers of N-methylolamides or N-methylolurethanes of higher fatty acids and tertiary hydroxyalkylamines or salts thereof, and various quaternary ammonium compounds containing one or two quaternary ammonium groups. Specified non-ionic dispersants are polyglycol ethers of higher alcohols or alkylphenols.  Specified anionic dispersants are acid esters derived from polybasic acids and polyglycol ethers of higher alcohols or alkylphenols, or salts thereof.
Patent GB-1510425-A (GB)
Title: Tension leg platform with quick release mechanism
IPC: E02B17/00
Filed: 1976-07-19
Abstract: 1510425 Releasable fastenings TEXACO DEVELOPMENT CORP 19 July 1976 [11 Aug 1975] 29913/76 Heading E2A [Also in Division B7] A mooring for an offshore semi-submersible vessel 10, see Grp. B7, comprises couplings 22 in the cables which automatically become disengaged when the tension in the cables is relieved, to release the vessel from its moorings in an emergency. Each cable 17 is attached to a buoy 21, and a bulbous knob 44 of coupling 22 is mounted thereon. Knob 44 engages in a cavity 41 of a coupling fitting 32 mounted on sheave 27. Release of the vessel is effected either by adjusting the cable tension, or by lowering the vessel in the water by ballasting, to cause fitting 32 to slide off the knob 44 which is maintained in position by the buoy 21.
Patent GB-1348738-A (GB)
Title: Suction head for sheet feeders
IPC: B65H3/08
Filed: 1972-06-27
Abstract: 1348738 Feeding sheets MABEG MASCHINENBAU GmbH NACHF HENSE & PLEINES GmbH & CO 27 June 1972 [30 June 1971] 29933/72 Heading B8R A suction head 1, Fig. 1 and 2, for separating sheets from the top of a pile 9, comprises separating suckers 45 reciprocable vertically in a curved path 46 by virtue of being mounted on a draw rail 32 mounted on levers 26, 37 pivoted at 22, 40, the lever 26 being oscillated by a cam 30. Conveying suckers 85 for transporting a separated sheet horizontally are mounted on a horizontal carriage 55 reciprocated by a roller 76 engaging in a vertical guide 74 on the carriage and mounted on a lever 75 pivoted at 22 and oscillated under the control of cams 78, 81. A blower foot 90 rests on the pile and blowers 91 blow air against the sheet sides.
Patent GB-656815-A (GB)
Title: A new or improved building material
IPC: E04C2/32
Filed: 1948-11-17
Abstract: 656,815. Building units. SHAND-KYDD, Ltd., and NEUMANN, S. Nov. 17, 1948, No. 29935. [Class 87(i)] A building unit comprises a corrugated sheet of fabric (e.g. hessian), impregnated or coated with plaster or cement and on one or both sides thereof a flat sheet of similar material and a further layer of plaster or cement. Fibre may be added to the plaster or cement and the corrugations may be filled with sawdust or fibre and their ends closed with plaster &c. Specification 2458/03, [Class 87], is referred to.
Patent GB-414365-A (GB)
Title: Improvements relating to the manufacture of fuel briquettes from carbonaceous material
IPC: C10L9/10
Filed: 1932-10-26
Abstract: 414,365. Agglomerating fuel. ROBERTS, A. A., Imperial House, Kingsway, London. Oct. 26, 1932, No. 29980. [Class 50.] In the manufacture of a briquette from carbonaceous material, the ash content of the material is estimated by analysis, dry cement is added as a combustion retarder and boric acid as a combustion accelerator in sufficient quantity to compensate for the retarder but insufficient to cause slagging of the ash. The preferred quantity of boric acid consists of 1/24-1/12th of the ash content. In examples a coal containing 6 per cent ash is mixed with 2À4 per cent dry cement by weight and “-¢ per cent boric acid; a coal containing 12 per cent ash, with 3-6 per cent cement and ¢-1 per cent boric acid, with or without emulsified bitumen and water respectively. The carbonaceous material may comprise coal, coke, sawdust, tan bark, peat, lignite, anthracite and carbonaceous residuums. Specifications 363,679, 402,107, 402,139, 414,361, 414,363, 414,367, and 414,368 are referred to.
Patent GB-1468413-A (GB)
Title: Process for the manufacture of 1,4-diamino-5-nitro-anthra quinone
IPC: C09B1/22
Filed: 1974-07-08
Abstract: 1468413 Preparing 1,4 - diamino - 5 - nitroanthraquinone CIBA-GEIGY AG 8 July 1974 [31 July 1973] 30233/74 Heading C4P 1,4 - Diamino - 5 - nitroanthraquinone is prepared by reacting one mole 1,4-diaminoanthraquinone with 4-8 moles liquid sulphur trioxide to form the 1,9,4,10-anthraquinone disulphonimide thereby masking the two amino groups, nitrating the intermediate with mixed nitric and sulphuric acids, and then hydrolysing the sulphonimide groups to form 1,4-diamino-5- nitro-anthraquinone, the masking and nitration reactions being carried out using liquid organic solvents inert to the reactants, e.g. dimethyl sulphate, sulpholane, dimethyl sulphone, methyl ethyl sulphone, diethyl sulphone, tetramethylene sulphone and hexamethylene sulphone.
Patent GB-227808-A (GB)
Title: Device for fastening the strengthening rings in transport cans
IPC: B65D8/08
Filed: 1924-12-16
Abstract: 227,808. Aktiebolaget Separator. Jan. 15, 1924, [Convention date]. Binding-hoops. - Sheetmetal milk transport and like cans are provided with a strengthening ring F secured by caulks B welded to the can at the middle and with its ends bent over the ring.
Patent GB-340999-A (GB)
Title: Improvements in or relating to machines for operating upon the soles of boots or shoes
IPC: A43D43/02
Filed: 1929-10-07
Abstract: 340,999. Cutting leather. BRITISH UNITED SHOE MACHINERY CO., Ltd., and MINETT, W. T., Union Works, Belgrave Road, Leicester. Oct. 7, 1929, No. 30290. [Class 31 (i).] Stationary-cutter machines.-In a machine for channelling boot soles &c. the channelling knife is moved into and out of operative position without cutting the channel lip. As applied machines of the kind shown in Specifications 13052/08, [Class 31, Cutting &c.], 16609/09, [Class 31 (i), Cutting and severing machines &c.], in which the knife is reciprocated on the line of the work feed, and the sole is held stationary during cutting, operation of a treadle rod 45 actuates linkage 44, 42, 40, 36, 20 to rock a three-armed lever 16 about a pivot 12. An arm 18 of the lever is adjustably spring pressed, and an arm 27 detachably holds a channel knife 29. The knife moves about the pivot 12 out of the channel without cutting the lip. On further depression of the treadle rod 45 a pin 46 engages a slot in the link 44 to actuate a bell crank 47 to lower a work support 50. Release of the treadle first raises the support 50 and then returns the knife to operating position. Specification 168,403, [Class 112, Sewing &c.], also is referred to.
Patent GB-1136049-A (GB)
Title: Improvements in flame, rot and waterproofing fibrous materials
Inventor: READ ALFRED EDWARD
IPC: D06M11/47
Filed: 1966-07-06
Abstract: 1,136,049. Proofed canvas and cardboard. homograft survival in mammals. CATOMANCE Ltd. 5 July, 1967 [6 July, 1966], No. 30377/66. Heading A5E. [Also in Divisions B1 and Dl] Tent canvas or cardboard is treated with an aqueous emulsion containing paraffin wax; chlorinated or brominated paraffin wax; aluminium, titanium or zirconium alkoxide; and antimony oxide and phosphate. A fungicide, e.g. pentachlorophenol laurate, copper 8- hydroxyquinoline, o-phenyl phenol, dichlorophene, hexachlorophene, or tributyl tin oxide may also be present. Other ingredients may be pva, pvc, styrene-butadiene, acrylic resin, calcium carbonate, clay, barium sulphate, titanium dioxide, white spirit, guar gum, isopropyl alcohol, glue, methyl cellulose, and thymol.
Patent GB-388710-A (GB)
Title: Improvements relating to table tops or counter tops
IPC: A47B13/08
Filed: 1932-10-29
Abstract: 388,710. Counter-tops. MARLEY, W. G., 32, Bute Terrace, DONNELLY, J. A., Kirkley, Primrose Hill, and MARLEY, E., 18, Kells Gardens, all in Low Fell, Gateshead-on-Tyne. Oct. 29, 1932, No. 30420. [Class 116.] A counter-top has, as a part thereof, means for absorbing spilt beverages. As shown in Fig. 1, one or more shallow recesses B with overhung edges D are formed in the top A, and absorbent discs C are slipped into them. They may be removed by a finger or thumb inserted through apertures E. In modifications, a ball or other catch is attached to the edge of each disc C, and engages with a recess in the edges of the recess B, which in this form are vertical.
Patent GB-702628-A (GB)
Title: Improvements in or relating to comber half-laps
IPC: D01G19/10
Filed: 1951-12-31
Abstract: 702,628. Combing-machines. ABBEY, A. (Terrell Machine Co.). Dec. 31, 1951, No. 30499/51. Class 120(1) Each needle bar as at 18 'or 102 of a half-lap combing cylinder comprises a part cylindrical base portion 30 or 132 having opposite side faces of which one has an arcuate profile and the other has a profile shaped to a sliding fit around the arcuate profile, i.e. the profiles are coinciding with, circumscribed around. or inscribed within circular areas. As shown, a comb segment comprising a number of such bars interconnected by flexible tie rods 34 and clamping bars 42, 44, is secured to a body member 12 so that the bars are correctly positioned as a result of their interfitted relationship in conformance with - the arcuate surface 16 on which they bear. Spacing components having the same form as the base portions may be incorporated in the segment. The projection of the needles beyond the bars to which they are secured decreases as the fineness of the needles increases: this is compensated by mounting the member 12 eccentrically on the comb hub by means of a shim 24, or by employing bars having needle carrying portions 28 of increasing length and with base portions of similar or increasing dimensions..