baber/WOPTO huggingface dataset:
Patent GB-1315734-A (GB)
Title: Phenylalanine derivatives and a process for the manufacture thereof
IPC: C07F5/04
Filed: 1971-10-29
Abstract: 1315734 Pharmaceutical compositions containing phenyl alanine derivatives F HOFFMANN-LA ROCHE & CO AG 29 Oct 1971 [30 Oct 1970] 50332/71 Heading ASB [Also in Division C2] Pharmaceutical compositions having hypotensive, antipyretic and anti-Parkinson activity comprise a compound of formula I: wherein R<SP>1</SP>, R<SP>3</SP> and R<SP>3</SP> each represent a hydrogen atom or an alkyl group or two of the symbols R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> together represent an alkylene group, R<SP>4</SP> represents a hydroxy, alkoxy or phenylalkoxy group or an amino group which may be alkyl-substituted and R<SP>5</SP>, R<SP>6</SP> and R<SP>7</SP> each represent a hydrogen or halogen atom or an alkyl; alkoxy, nitro, cyano or alkylthio group and wherein the two phenolic hydroxy groups denoted by (OH) 2  are present in the ortho-position to one another and the aliphatic groups R<SP>1</SP>-R<SP>7</SP> or the aliphatic portions of the groups R<SP>1</SP>-R<SP>7</SP> each contain up to 18 carbon atoms, provided that the compounds are present in the L-form when R<SP>1</SP>-R<SP>3</SP> and R<SP>5</SP>-R<SP>7</SP> each represent a hydrogen atom and R<SP>4</SP> represents a hydroxy group, or a salt thereof and a diluent or carrier and optionally a decarboxylase inhibitor such as benzylidene acetophenone, L-3-(3, 4-dihydroxyphenyl)-2-methylalanine or a compound of one of formulae: wherein P is H or an aminoalkanoyl group of up to 7 carbon atoms and Q is H or a C 1-7  alkyl group. The compositions can be in conventional forms for oral, rectal or parenteral administration or optionally when incorporating a decarboxylase inhibitor the compound of formula I above and a carrier may form a core provided with a gastric juice resistant coating which is then covered by an external layer containing the decarboxylase inhibitor.
Patent GB-1041526-A (GB)
Title: Improvements relating to copolyamides
IPC: C08G69/14
Filed: 1964-12-11
Abstract: Copolymers of e -caprolactam and e -cyclohexyl-e -caprolactam <FORM:1041526/C3/1> may be prepared using e -caproamide as catalyst. Examples illustrate the effect of varying the proportion of cyclohexylcaprolactam in the copolymer, between 10 and 30 wt. per cent, on the properties of the product which has greater plasticity and transparency with the higher proportions.  The copolymers may be used for textile yarns, bristles, films and moulded products and conventional additives may be incorporated therein.
Patent GB-1032777-A (GB)
Title: Improvements in or relating to magnetic tape recording and reproducing apparatus
Inventor: GWILLIM DAVID THOMAS
IPC: G11B15/38
Filed: 1963-12-23
Abstract: 1,032,777. Feeding magnetic tapes. DECCA Ltd. Nov. 25, 1964 [Dec. 23, 1963], No. 50636/63. Heading G5R. Magnetic tape feeding apparatus comprises a vacuum capstan 81 adapted to feed tape out of and into a removable cassette. The cassette slides into a locating channel 44 on the fixed part of the apparatus and is provided with locating apertures 37 and 38 engaged by spigots 47 and 48. The cassette may be locked in position by a latch operated by a lever 71, and a pair of microswitches 50 and 53 are operated on insertion of the cassette to indicate that the cassette is in place and that transducing may begin. A pair of guides 18 and 26 in the cassette are pressed by respective springs into grooves such as 60 so that the tape is accurately located with respect to the transducer head 49. The tape is pressed against the head by a spring-loaded guide 23 provided with a ferrite plate 23b to control the cross-talk during playback. A concave mirror 22 in the cassette co-operates with a lamp 68 and photo-cell 69 to detect a transparent or translucent end-oftape mark. Before leaving the cassette the tape passes over a vacuum tensioning block 14 supplied with low pressure through connections 56 and 57, and before re-entering the cassette the tape passes over a spring-loaded guide 33, which, when the cassette is not in use, presses the tape against rubber stops 92 on a cover-plate 90 to keep the tape sufficiently taut to engage the capstan when the cassette is replaced in the apparatus. A wedge 36 may be provided in the cassette to break the tape into small folds as it enters. The tape may be endless, or the cassette may be provided with a pair of spools or divided into two scramble bins. The cassette shown is provided with one bay for co-operating with one capstan, but two bays may be provided so that two capstans may be used. The fixed part of the apparatus may be provided with a plurality of coaxial capstans co-operating with a plurality of cassettes, or a single capstan may be provided with a plurality of control valves so that it may selectively drive a number of tapes. The capstan may be as described in Specification 1,032,778.
Patent GB-1073562-A (GB)
Title: Improvements in or relating to optical visibility measuring devices
Inventor: BREWSTER ARTHUR EDWARD
IPC: G01N21/53
Filed: 1965-11-30
Abstract: 1, 073, 562. Measuring visibility. STANDARD TELEPHONES & CABLES Ltd. Nov. 30, 1965, No. 50742/65. Heading G1A. [Also in Division G2] In a visibility measuring arrangement the electrical signal produced by a receiver in response to the receipt of light from a pulsed source is maintained constant by using it to adjust the pulse width of the transmitted light and the pulse width is used as a measure of the visibility which may be displayed recorded and/or transmitted. The receiver signal is integrated so that the mean signal value may be compared with a reference value. The path between the transmitter and receiver may be direct or may be folded by a cubical or tetrahedral corner reflector so that the source and receiver may be at the same location, the source comprising a gallium arsenide diode emitting infrared backed by a concave silvered glass reflector. The use of a single source and detector in conjunction with a number of reflecting devices in different directions is described with reference to Fig. 5 (not shown) and the use of a number of source/ detector units with a common reflector is described with reference to Fig. 6 (not shown). The arrangement is caused to operate an alarm in the absence of received light, and the measuring of slant visibility is discussed. Alternative refracting or reflecting devices may be used instead of a corner reflector. The reflector used may be an active reflector which codes the returned signal in a manner to which the receiver is only responsive.
Patent GB-1523768-A (GB)
Title: Process for recovering usable materials from waste material containing metals and non metals
IPC: B29B11/00
Filed: 1975-12-11
Abstract: 1523768 Wet separating; centrifugal separation STAMICARBON BV 11 Dec 1975 [12 Dec 1974] 50869/75 Headings B2H and B2P A method of recovering materials from particulate metal-containing waste comprises feeding a mixture of water and solids to a hydrocyclone to provide a heavy portion consisting mainly of metals and a relatively light portion mainly consisting of non-metals, and dewatering the separated light and heavy portions. In the embodiment shown, an old car 1 is flattened between rollers 2 and 3 and is then shredded in a device 5. Ferromagnetic material is removed from the resulting scrap by a magnetic separator 7 and the other material passed over a sieve 9. The portion passing through the sieve is mixed with water in a vessel 11 and the resulting mixture fed to a hydrocyclone 14, in which it is separated into two fractions. The heavier fraction containing copper, aluminium and glass is dewatered on a sieve 20 and the lighter fraction containing plastics and rubber is dewtered on a sieve bend 22. A part of the recycled water is passed through a cyclone 31 to remove the fine particles which tend to accumulate therein.
Patent GB-1448595-A (GB)
Title: Nut with a self-locking thread
IPC: F16B39/30
Filed: 1973-11-05
Abstract: 1448595 Self-locking nuts VUMA VYSKUMNY USTAV MECHANIZACIE AAUTOMATIZACIE 5 Nov 1973 [15 Nov 1972] 51329/73 Heading F2H In a nut having self-locking threads the threads 16 are arranged in segmental rows longitudinally of the metal nuts 10 and one or more of the threads 17 in a segment has a different configuration to the threads 16 of the rest of the nut to effect locking engagement with the threads of the co-operating threaded member. The thread segment 17 may have shallow roots 18 on each side, Fig. 3, differently inclined flanks, Fig. 4, a crest extending radially nearer the nut axis, Fig. 5 (not shown), or may be axially displaced relative to adjacent segments, Fig. 6 (not shown). The outer surface of the nut may be hexagonal or of other shape, Fig. 9 (not shown) and may be provided with a bearing face at one end and closed at the other, Figs. 7 and 8 (not shown) or may be open ended.
Patent GB-1365967-A (GB)
Title: Sliding and deformable bearing for insertion between building com ponents
IPC: E04B1/36
Filed: 1971-11-08
Abstract: 1365967 Bearings F KILCHER BAUISOLATIONEN AG 8 Nov 1971 [16 Dec 1970] 51767/71 Heading F2A A bearing for location between building components comprises a hollow member 1 having two internal surfaces which engage one another under load and two side walls 2 connecting the surfaces, which are deformable to permit limited sliding of the surfaces, the member incorporatng a deformable portion. Lubricant 3 may be contained in the hollow member between the sliding surfaces.
Patent GB-1463900-A (GB)
Title: Photosensitive polyamide composition
IPC: G03F7/032
Filed: 1974-11-29
Abstract: 1463900 Water-developable photopolymerizable compositions UNITIKA Ltd 29 Nov 1974 51909/74 Addition to 1411966 Headings C3P and C3R [Also in Division G2] Water-developable, photopolymerizable compositions comprise a polyamide, an unsaturated compound having at least one ethylenic double bond, and a photoinitiator, the polyamide containing isophthaloyl groups in an amount of at least 0À5 moles/1000 g. and (5-sodium sulpho)- and/or (5-potassium sulpho)-isophthaloyl groups in an amount of at least 0À2 mole/1000 g. The unsaturated compound may be for example, a bis-acrylamide, a bis-methacrylamide, an O,N-bis-(a-alkyl)acryloyl compound of an amino alcohol or aminophenol, a poly (α-alkyl)acrylate ester of a polyhydric alcohol or phenol, a tri-N-(meth)acryloyl compound, acrylamide or methacrylamide or a derivative thereof, or a hydroxy-(meth)acrylate ester. Useful photoinitiators include benzophenone, benzoic or anthraquinone and derivatives thereof, and nitro compounds such as pnitroaniline or picramide. Optional components include polymerization inhibitors and colourants. The compositions are useful for producing printing plates for relief, offset, dry offset, silk screen and multicolour printing; as well as for producing electronic components, for ornamenting metal articles, and for aqueous paints. The polyamide component can be prepared by polymerizing (a) isophthalic acid or a suitable derivative thereof, e.g. the acid dichloride or dimethyl or diethyl ester, (b) 5-sodium (or potassium) sulpho-isophthalic acid or a suitable derivative thereof, e.g. the dimethyl ester, and (c) other polyamide-forming components, e.g. # - caprolactam, hexamethylene diammonium adipate and hexamethylenediamine (see the examples).
Patent GB-519221-A (GB)
Abstract: 519.221. Brushes &c. LENG, A. C., and LENG, A. S., (trading as Leng & Sons, C. H.). Oct. 4, 1938, No. 28748. [Class 19] Thdn brushes for painting and graining consist of a handle c which is attached to a ferrule a for the bristles by a tongue e of laminated wood, vulcanized fibre, or any other strong material.
Patent GB-1480949-A (GB)
Title: Preparation of flexible polyurethane foams
IPC: C08G18/24
Filed: 1974-12-02
Abstract: 1480949 Polyurethane foams BASF WYANDOTTE CORP 2 Dec 1974 [3 Dec 1973] 52014/74 Heading C3R A process for the preparation of a flexible polyurethane foam comprises reacting : (a) a polyoxyalkylene ether polyol or polyoxyalkylene ether polyol blend which has an equivalent weight of at least 100 and in which at least 17% of the hydroxyl groups are primary OH groups, (b) an aliphatic polyisocyanate or an aromatic polyisocyanate having at least 2 NCO groups attached to the same aromatic ring, (c) water, in the presence of (d) a surfactant and (e) an organic stannous salt as the sole catalyst. The foams generally have a density of 1-2 1bs./cu. ft. Suitable catalysts are stannous acetate, stannous butyrate, stannous laurate, stannous octoate, stannous stearate, stannous oleate and stannous linoleate. Suitable polyisocyanates are polymethylene diisocyanates and toluene diisocyanates. The NCO/OH ratio is generally from 0À9 : 1 to 1À5 : 1. Suitable surfactants are polysiloxanes, oxyalkylated polysiloxanes and alkylene oxide adducts of organic compounds containing reactive hydrogen atoms. Optional ingredients include fillers, e.g. aluminium silicate, calcium silicate, magnesium silicate, calcium carbonate, barium sulphate, calcium sulphate, carbon black and silica; and inorganic and organic pigments, e.g. TiO 2 , ZnO, iron oxides, antimony oxide, chrome green or yellow, iron blue siennas, molybdate oranges, para reds, benzidine yellow, toluidine red, toners and phthalocyanines. In the examples flexible foams having improved load-bearing properties are prepared from the following formulations: 65/35 or 80/20 2,4-, 2,6-toluene diisocyanate, water, oxyalkylated polysiloxane, stannous octoate or stannous oleate and as the polyol component either (A) a glycerol-propylene oxide-ethylene oxide adduct (e.g. wt., 1000, primary OH content 50%) and/or (B) a trimethylolpropane - propylene oxide - ethylene oxide adduct (e.g. wt. 2200, primary OH content 100%), or a blend of (C) a glycerol-propylene oxide adduct (e.g. wt. 1000, primary OH content 5%) with either polyol (A) or with (D) a glycerol-propylene oxide ethylene oxide adduct (e.g. wt. 1000, primary OH content 100%).
Patent GB-1417999-A (GB)
Title: Fabrication of anodes by plasma spray deposition
IPC: H01G9/048
Filed: 1972-11-10
Abstract: 1417999 Coating with metals by spraying: Electro-etching Ta &c PR MALLORY & CO Inc 10 Nov 1972 [12Nov 1971] 52091/72 Headings C7B and C7F [Also in Division H1 J A capacitor anode of e.g. Ta, Al, Ti or Nb, having an elongated part and a headed part is plasma or flame sprayed with e.g. Ta. The anodes may be sintered at 1800 to 2200‹C. The surface may be grit blasted, chemically etched or electrochemically etched in a methanol solution of ammonium bromide, prior to spraying.
Patent GB-1369617-A (GB)
Title: Nail feed mechanism for feeding successive nails from a nail package
IPC: B25C1/00
Filed: 1971-11-10
Abstract: 1369617 Nail driving devices TEXTRON Inc 10 Nov 1971 [18 March 1971] 52296/71 Heading B4C  The subject matter of the present Specification is the same as that described in Specification 1,369,616 but the claims are concerned with a nail feed mechanism comprising a reciprocable nail feeding means for advancing a strip of nails and a nail holding means for preventing movement of the leading nail of the strip away from a drive track upon a return stroke of the nail feeding means, the holding means including a surface which partially closes the drive track so as to prevent a nail in the drive track from being carried into a nail feeding track accommodating the strip during driving of the nail in the drive track by a nail driving element.
Patent GB-1151128-A (GB)
Title: Bouquet Holder and Carrier.
Inventor: SYFRIG UELI
IPC: A01G5/04
Filed: 1967-11-17
Abstract: 1,151,128. Bouquet holder. U. SYFRIG. 17 Nov., 1967 [29 Dec., 1966], No. 52391/67. Heading A4U. In a plastics bouquet holder, upper and lower lattice cage parts 2, 3 are secured together by the engagement of tongues 4 beneath a ring 5, and the cage is secured to a hollow handle 1 by snap engagement of a ring 6 in a neck 7. The cage is filled with moistened plastics foam into which the flower stems are thrust. In a modification the handle is integral with the part 2.
Patent GB-1168649-A (GB)
Title: Improvements in and relating to Hydrostatic Bearings
Inventor: ARNESON HAROLD ELIAS GRANT
IPC: F16C32/06
Filed: 1966-11-23
Abstract: 1,168,649. Bearings. H. E. G. ARNESON. 23 Nov., 1966 [29 March, 1966], No. 52504/66. Heading F2A. A hydrostatic fluid bearing comprises first and second bearing members 11, 20, one of which contains a fluid supply chamber 15, and the other having a plurality of elongated grooves 9 and an ungrooved portion 20a, 20b. Member 11 comprises two bearing portions 12, 13, each portion having a length greater than 500 times the clearance, the length of the ungrooved portion being greater than 20 times said clearance, and the width of the ribs formed by the grooves being less than 4 times the length of the ungrooved portion. In Fig. 1, liquid passes from inlet 17 and annular supply chamber 15 to the ends of the bearings. The grooves are rectangular or triangular in crosssection.
Patent GB-1353554-A (GB)
Title: Centrifugal pumps
IPC: F04D29/42
Filed: 1971-11-12
Abstract: 1353554 Making pump casings SIGMA VYSKUMNY USTAV CERPACICH ZARIZENI POTRUBI A ARMATUR ODSTEPNY ZAVOD 12 Nov 1971 [14 Nov 1970] 52774/71 Heading B3A [Also in Division F1] A centrifugal pump casing is constructed from at least two welded together sections 11, 12 which are generally shaped as complementary segments of a sphere or ellipsoid, and which have pre-formed or welded on members 13, 15, 16 which define at least one suction port, one discharge port and one further opening for connection of the driving mechanism. The inner working surfaces of the casing are provided with a layer of corrosion resistant material. Hemispherical sections, e.g. pressed from sheets of stainless or low-alloy steel, are supported on and spot welded to ring elements 51 to form a spherical casing. Openings 14, 20, 21 are provided and members 13, 15, 16, which are forged from material similar to that of sections 11, 12, are welded to the sections around the openings to provide the connection opening, inlet and outlet respectively. Alternatively members 13, 15, 16 may be preformed on the sections. The sections are welded together and the ring elements removed. The inner surfaces may then be provided with corrosion resistant layer 17 of oustenitic material which is sprayed or welded on. A pump (Fig. 1, not shown) comprises impeller (203) secured on shaft (202) by a nut (204) and inserted into the casing through the connection opening, a diffuser (201), and a pipe (205) which extends between the inlet and the front of the impeller.
Patent GB-1364157-A (GB)
Title: Process for the preparation of 2-/2-aminobenzoyl/ pyridines
IPC: C07C67/00
Filed: 1972-11-17
Abstract: 1364157 2 - (2 - aminobenzoyl) pyridines F HOFFMANN-LA ROCHE & CO AG 17 Nov 1972 [19 Nov 1971] 53213/71 Heading C2C Compounds of formula wherein R 1  is H, Br, Cl or I and R 2  is H or C 1 -C 7  alkyl, are prepared by reacting a corresponding anthrasilonitrile with a 2-pyridyl metallo reagent such as 2-pyridyl lithium, preferably after first treating the nitrile with one mole of a phenyl metallo reagent.
Patent GB-1513999-A (GB)
Title: Electrochromic display device
IPC: G09G3/38
Filed: 1976-12-22
Abstract: 1513999 Matrix displays and circuits therefor INTERNATIONAL BUSINESS MACHINES CORP 22 Dec 1976 53515/76 Heading G5C To avoid deterioration of "coloured" elements in the stored image of an electrochromic matrix display, the difference of potential between coloured and uncoloured elements is eliminated by, in addition to the major change applied to coloured elements, applying a smaller charge to form an invisible layer on all other elements. To address elements 4, a complete row at a time is addressed by shift register 9 to activate the row conductor 7 to the control electrodes 6 of FET's 5 or other semiconductor switches; the column conductors 12 to the elements selected in the row are connected via respective column drive circuits 13 to ground for "write", passing current via common counterelectrode 3. To write fully all three terminals W1-3 may be energised, but not all for partial coloration. Data for the addressed row is loaded in shift register 14 setting, when bus 20 is activated, the state of the bistable circuit 35 of each column drive circuit 13. The condition set by circuit 35 is periodically overridden for a short interval by a pulse on bus 19, causing a small charge to flow to all electrodes, so forming an invisible layer on those unwritten, and adding to the coloration those written. Erasure of a complete row or one cell can be provided by energising lines 17 or 18, connecting the electrode(s) to buses 21, 22 respectively. Writing may be by means of a series of equal pulses, one of which applied to all electrodes forms the invisible layer on those uncoloured.
Patent GB-1112959-A (GB)
Title: Improvements in and relating to packages for elongated articles
IPC: B65D73/00
Filed: 1966-11-30
Abstract: 1,112,959. Packages. AKERLUND & RAUSING AB. 30 Nov., 1966 [30 Dec., 1965], No. 53669/66. Heading B8C. An article, e.g. a wrench 16, is attached to a display card 1 by flanges 4, 5 of which one flange 4 has two holes 14, 15 and the other, 5, has at least one hole 24. The flanges may be pasted down to the card at 10 and 20 but are preferably held in position by the article itself. A flap 27 is secured to the back of a main panel 3.
Patent GB-1273090-A (GB)
Title: Improvements in drag line loaders
Inventor: MCCAMMONT ROBERT GILMOUR
IPC: E02F3/54
Filed: 1970-11-17
Abstract: 1,273,090. Drag-line scrapers. BPB INDUSTRIES Ltd. 17 Nov., 1970, No. 54679/70. Addition to 938,379. Heading B8E. [Also in Division El] A mobile drag-line scraper, Figs. 1 and 3 is self-propelled by wheels 7 which are driven by hydraulic motors mounted in wheel hubs 8. A tail pulley 21 is supported by a pair of telescopic booms 18, extended by rows 32, and a pair of booms 19. The booms 18 are raised by rams 34 and guided by telescopic guides 36. An engine 13 drives an hydraulic pump 14. The vehicle is controlled from a cab 12. A scraper 24 is operated by a drag-line 23 and a pair of winches 22.
Patent GB-1446530-A (GB)
Title: Spectacles
IPC: G02C1/04
Filed: 1974-12-19
Abstract: 1446530 Spectacles A BOURGEOIS 19 Dec 1974 55068/74 Heading G2J A spectacle frame comprises a brow bar contoured as shown from above in Fig. 1, together with two lens rings 10 each of which is notched adjacent the bridge portion 3 of the brow bar so as to engage over a bent section 4, 5 thereof; lug portions (15) define grooves which receive the hinge end portions of the brow bar, screws 17 passing through bores in the lugs and the adjacent portions of the brow bar to hold the assembly secure.
Patent GB-1425019-A (GB)
Title: Electronic phase-sensitive detector circuit arrangements
IPC: G01R25/00
Filed: 1972-11-30
Abstract: 1425019 Phase sensitive detectors BROOKDEAL ELECTRONICS Ltd 26 Nov 1973 [30 Nov 1972] 55255/72 Heading H3A A phase sensitive detector comprises: two sections each of which comprises a signal translating device Q1 or Q4 and two alternative paths containing switching elements Q2, Q3 or Q5, Q6; means 4, 5 for applying a reference signal to actuate one or other of the switching elements in each section, depending on the phase of the reference signal; means 5 for applying an input signal to at least one of the devices Q1 or Q4; means 8, 9 for deriving an output from the switching elements; and means including an integrator C1, 13 for providing feedback from the output to at least one of the translating devices so as to maintain the mean output level constant. The input and feedback signals are applied to both devices Q1, Q4 either to their emitters as shown, or to their bases.