baber/WOPTO huggingface dataset:
Patent GB-1447072-A (GB)
Title: Window regulators for
IPC: E05F11/38
Filed: 1973-11-01
Abstract: 1447072 Vehicle window regulating mechanism REGIE NATIONALE DES USINES RENAULT and AUTOMOBILES PEUGEOT 1 Nov 1973 [17 Nov 1972] 50772/73 Heading E2M  In a vehicle window regulator, particularly suitable for a curved window 6, of the type in which a hand cranked gear 11 acts, via a gear 10, on a sector plate 9 to raise and lower the window through two parallel link arms 1 and 2, two curved guide channels 12 and 18 receive the sides of the window and a curved guide rail 19 mounted fast with channel 18 receives a roller  20 which extends from the lower edge of the window, the rail having end portions 19a, b which act via the roller to guide the window in the front to rear as well as the up and down direction. The link arms 1, 2 are pivoted at' O' 1  and O' 3  to a mounting plate 8 and at O 1  and O 2  to, respectively, a roller 4 slidable in a channel along the bottom of the window and an arm 7 fast with the bottom of the window. Sector plate 9 is fixed to arm 1.
Patent GB-1431719-A (GB)
Title: Cigarettes cigars or cigarillos
IPC: A24D1/10
Filed: 1973-11-02
Abstract: 1431719 Cigarettes; filter sections TABAK ENG GmbH TECHNISCHE ENTWICKLUNGEN 2 Nov 1973 [3 Nov 1972] 50920/73 Heading A2C A cigarette cigar or cigarillo with a cylinder of tobacco divided into a smoking section and a filter section by a glow-extinguishing zone is characterised by having a plurality of capsules distributed in said glow-extinguishing zone, each of said capsules which may be microcapsules having a liquid-tight casing and containing an extinguishing liquid, said casings being arranged to release the liquid content in response to a predetermined increase in temperature caused by the burning of the tobacco and said liquid, when released, serving to extinguish the cigarette, cigar or cigarillo. The extinguishing liquid is preferably water and constituents improving the taste of the smoke, e.g. ethyl alcohol or essential oils may be added thereto. The casing of each capsule may be of cellulose, a cellulose derivative, or a synthetic resin, e.g. a polyolefin. In one embodiment (Fig. 1) a cigarette consists of a wrapping 2 of cigarette paper and a cylinder 4 enclosed thereby and consisting of tobacco. A large number of capsules 8 are distributed in the cylinder in a glow-extinguishing zone 6 over the entire cross-section of the cylinder of tobacco. The filter section 12 is marked by a paper tip 14. In another embodiment the capsules are distributed in the cylinder in the glow-extinguishing zone only to a certain depth. The tobacco of the filter section may be of a lower quality than that of the smoking section. The capsules may be introduced into or on to the tobacco by blowing, spraying, or spreading them on or by dripping a suspension of microcapsules onto the cylinder of tobacco.
Patent GB-1359879-A (GB)
Title: Preparation of organic acids and esters
IPC: C07C51/31
Filed: 1971-11-04
Abstract: 1359879 Hydroxycaproic acid; adipic acid; formyl valeric acid; esters thereof TEIJIN Ltd 4 Nov 1971 [28 July 1971] 51390/71 Heading C2C A mixture of #-hydroxycaproic acid, adipic acid, and #-formylvaleric acid is produced continuously by oxidizing cyclohexane with O 2 , withdrawing at least part of the reaction mixture, extracting the acids from the withdrawn reaction mixture such that under steady state conditions the COOH concentration is reduced to not more than 1À2 gm. equ./litre, and recycling part or all of the extraction residue containing cyclohexane, cyclohexanol and cyclohexanone to the reaction system. Extraction may be effected by countercurrent contact with an aqueous solution of product acids containing 4-7 gm. equ./litre COOH, recycled from the foot of the contact tower, water also being fed in at the top (1/30-1/5 parts by volume). The extraction residue may then be passed to a second stage where it is contacted with water or acids containing 0-1À5 gm. equ./litre COOH. 1-5% of the extraction residue may be withdrawn and distilled to separate cyclohexane &c. which is recycled. Alternatively, extraction may be effected with 1,2-propane diol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, or diethylene glycol, alone or in aqueous solution. The glycol is then extracted from the extraction residue by washing with water. The oxidation reaction may be carried out at 120-150‹ C. and 3-30 atm. pressure.
Patent GB-1165017-A (GB)
Title: Improvements in and relating to Electrophotography.
IPC: G03G13/06
Filed: 1966-11-16
Abstract: 1,165,017. Photo-conductive material. FUJI SHASHIN FILM K.K. 16 Nov., 1966 [17 Nov., 1965], No. 51426/66. Heading H1K. [Also in Division G2] Photo-conductive toner particles for use in electrophotography consist of a core material having a surface coating of photo-conductive material, wherein a 5 Á thick layer of the core material absorbs less than 80% of incident light to which the photo-conductive material is sensitive. The core may be a resin (e.g. polymethylmethacrylate, an acrylic resin or polyvinylchloride), an inorganic salt, a metal oxide or glass and may be coloured or contain a colourforming compound. The photo-conductor may be Se, anthracene, ZnO, ZnMgO 2 , CdSe, TiO 2 , ZnSiO 3 , HgO and/or CdS, optionally dispersed in a resin binder (e.g. polystyrene, silicone or an epoxy ester varnish). The coating may be applied as a melt, by vapour deposition, or as a solution followed by spray or heat drying.
Patent GB-1361708-A (GB)
Title: Process for agglomerating sodium carbonate peroxide
Inventor: MUNDAY T F
IPC: B01J2/28
Filed: 1972-11-08
Abstract: 1361708 Sodium percarbonate agglomerates FMC CORP 8 Nov 1972 [9 Nov 1971] 51581/72 Heading C1A Particles of Na 2 CO 3 .3/2H 2 O 2  are subjected to rotary agitation in a rotating disc or drum, contacted with aq. sodium silicate solution while in motion, allowed to agglomerate in continued motion and dried at 20-80‹ C. such that dry agglomerated particles having a bulk density of 0À4-0À9 g.cm.<SP>-3</SP>. and containing sodium silicate to provide 1-5% by weight of SiO 2 . A specified agitator is a Dravo-Lurgi Disc. The aq. sodium silicate solution may be sprayed on to the particles. The feed is preferably <50 U.S. mesh and the product is preferably 16-40 U.S. mesh. The aq. solution may have a sodium silicate concentration providing 5-20% SiO 2  and the SiO 2  : Na 2 O weight ratio may be 1 : 1 to 3 : 1. The drying of the agglomerated particles may be done in a fluidized bed.
Patent GB-1162028-A (GB)
Title: Process for Preparing 1.4-bis-(mono-alkylamino)-trans-butenes-(2)
IPC: C07C209/08
Filed: 1966-11-17
Abstract: 1,162,028. 1,4-Bis-(monoalkylamino)-transbutenes-(2). FARBWERKE HOECHST A.G. 17 Nov., 1966 [25 Nov., 1965], No. 61604/66. Heading C2C. 1,4 - Bis - (monoalkylamino) - trans - butenes of the general formula in which R is an alkyl group which may be substituted, are prepared by reacting 1,4- dichloro-trans-butene-(2) with at least six times the molar amount of a primary aliphatic amine which may be substituted. The amines used may be substituted by hydroxy, C 1 -C 5  alkoxy or aryl groups. The reaction may be carried out in an aromatic solvent. The products of the invention may then be hydrogenated to give the corresponding saturated compounds.
Patent GB-1403827-A (GB)
Title: Foundry binder containing ketone-aldehyde reaction  products  and polymers
IPC: C08L61/02
Filed: 1973-10-07
Abstract: 1403827 Foundry mix ASHLAND OIL Inc 7 Nov 1973 [17 Nov 1972] 51736/73 Heading C3N A composition suitable for preparing foundry shapes comprises at least 50% yb weight of a foundry aggregate and an effective bonding amount up to 10% by weight based on the weight of the aggregate of a foundry binder, at least a portion of which comprises (a) 20-90% by weight of the portion of a reaction product of an aldehyde and a ketone, optionally in the presence of a modifying agent which is a phenol or an amide, in a mole ratio of aldehyde : ketone in the range 7 : 1-1 : 1, the ketone being cyclohexanone, cyclopentanone, or having the general formula R 3 C(CO)CR 3  in which each R group may be the same or different and represents H, alkyl (C 1-8 ), aryl (C 6-14 ) or cycloalkyl (C 3-8 ) provided at least two R's represent H; and from 10-80% by weight of the portion of furfuryl alcohol and/or a furan resin; or (b) the reaction product of an aldehyde and a ketone (as defined in a)) in the presence of furfuryl alcohol and/or a furan resin, optionally in the presence of a modifying agent which is a phenol or an amide, and in a mole ratio of aldehyde : ketone in the range 7 : 1-1 : 1, and optionally additional furfuryl alcohol and/or a furan resin, the proportion of the binder comprising 20-90% by weight of aldehyde and ketone and a total of 10-80% by weight of furfuryl alcohol and furan resin; any remaining portion of the foundry binders comprising at least one other foundry binder in a total amount up to 50% by weight of the ketone-aldehyde reaction product. The preferred ketone is acetone and the preferred reaction product is an alkali catalysed acetone-aldehyde polymer. An acid catalyst, e.g. paratoluene sulphonic acid may be added to promote the curing of the binder. Other foundry binders which may be included are urea-formaldehyde polymers, phenol-aldehyde polymers and urea modified phenol-aldehyde polymers. Silanes, e.g. gamma aminopropyltriethoxysilane or NH 2 CH 2 CH 2 NH(CH 2 ) 3 Si- (OCH 3 ) 3 , in amounts 0À1-2% by weight based on the binder may be present to improve the adhesion. The foundry mix may also contain iron oxide, ground flax fibres, food cereals, pitch and refractory flours.
Patent GB-1021077-A (GB)
Title: Optical systems
IPC: G06V30/224
Filed: 1964-12-21
Abstract: 1,021,077. Automatic character reading. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 21, 1964 [Dec. 31, 1963], No. 51756/64. Heading G4R. Characters and other specimens are identified by generating a diffraction pattern and angularly scanning this to obtain a series of signals from which the pattern may be identified. Monochromatic light from a lamp 50, such as a mercury-area lamp, passes through mask 52 on to collimating lens 12. Alternatively coherent light from a laser may be used. The character or other specimen 16 is placed in the parallel light emerging from the lens 12. Converging lens 18 focuses the transmitted light at a diffraction plane to form a Fraunhofer diffraction pattern such a pattern is invariant to registration of the specimen 16 being always centred at the centre of disc 24. The disc 24 is a rotary mask having aligned slots 26. In one form the light passing through the slot is received in a single photo-cell the output of which, as the, disc rotates, is a waveform characteristic of the specimen 16. In the form shown the specimen comprises an array of numerals arranged in several lines and each numeral is formed of a series of five parallel lines at an angle defining the numeral For example the numeral " 1 " is composed of a series of vertical lines, numeral " 2 " is composed of lines inclined a few degrees to the right. The diffraction pattern of such a character is a group of dots lying in a line at right angles to the lines of the characters. As the disc 24 rotates therefore, the slit lets through the patterns of the numerals " 1 ", " 2 " &c. in turn. These patterns are re-converted to numerals by image lens 54 so that while the slit 26 is horizontal all the " 1's " appear positioned according to their positions on the input transparency 16. The image is scanned for each position of disc 24 by a four-sided mirror 60 which sweeps the images of the rows across corresponding photo-cells 64. The output signals are stored in their proper positions in store 68. Specimens on an opaque carrier are first transferred to a transparency by being scanned by a television camera and the signals fed to an electron gun. Two glass plates are positioned in the beam of the electron gun and a charge placed between them. One of the plates carries a thin film of conductive oil which is deformed by the beam from the electron gun and the transmissivity thereby varied sufficiently to give a usable input specimen.
Patent GB-1269930-A (GB)
Title: Gunn effect device
IPC: H01L23/29
Filed: 1970-10-30
Abstract: 1,269,930. Gunn effect devices. HITACHI Ltd. 30 Oct., 1970 [31 Oct.1969], No. 51769/70. Heading H1K. A Gunn-effect device is provided with an insulating covering capable of inducing holes in the surface of the body. In an N-type body this is thought to invert the surface thus restricting the domain path to the centre of the body where it is not influenced by atmospheric contact with the surface.  In a first embodiment an N<SP>++</SP> type GaAs substrate 1 is provided with an N- type epitaxial layer 2 by a disproportionation reaction and an N<SP>+</SP> type layer 3 by liquid phase epitaxy. The surface is photo-masked and etched to produce a plurality of mesas, the resist is removed and a layer 7 of Si 3 N 4  is deposited by thermal decomposition. The insulating layer is removed from the tops of the mesas and the wafer is subdivided to produce single devices as shown in Fig. 1, in which layer 2 constitutes the active region and substrate 1 and layer 3 are contact regions. In a second embodiment a P-type substrate (10) is provided with an N-type epitaxial layer (11) by a gas phase disproportionation reaction and the surface is covered with an Al 2 O 3  film (12) by reaction of AlCl 3  and H 2 O, Fig. 7 (not shown). Apertures are etched in the oxide film using a photoresist mask and Sn is diffused-in to form N<SP>++</SP> type contact regions (14), Fig. 8 (not shown). The wafer is then subdivided through the N+ + type regions to form a plurality of diodes, Fig. 6.  A logic element, Fig. 9 (not shown), is produced by forming an N- type epitaxial layer (17) on an I type substrate (16), applying a Si 3 N 4 , film (18) etching windows in the insulating film, diffusing-in a donor to form N<SP>+</SP> type cathode and anode regions (19, 20), applying Au-Ge-Ni alloy to form electrodes (21, 22), on these regions, opening a third window (23) near the cathode region (19) and applying a Au Schottky electrode 24. The Schottky electrode may also be of Al, Mo, Ni, Cr or Ti or may be replaced by a PN junction. The device is operated by biasing the main electrodes to between the sustaining voltage and the domain formation threshold voltage. A negative pulse applied to the third electrode initiates a domain near the cathode region 19. A laminate of Si 3 N 4 , and Al 2 O 3  may be used as the insulating film and the semi-conductor material may also be InP, GaAs 1-x , P x , (0<x< 0À4) or CdTe.
Patent GB-1030219-A (GB)
Title: A process for thermally stabilizing images produced in layers of photochromic material by ultra-violet irradiation
IPC: G03C5/56
Filed: 1964-12-21
Abstract: 1,030,219. Photographic processes using photochromic materials. NATIONAL CASH REGISTER CO. Dec. 21, 1964 [Feb. 26, 1964], No. 51795/64. Heading G2C. Thermally stabilized images are produced in a layer of one or more non-crystalline, photochromic spyropyran compounds by imagewise exposing the material to ultra-violet radiation,treating the imaged layer with nitrogen peroxide vapour and heating the layer until the image turns red. Before exposure, the layer may be treated with hydrochloric acid vapour to form a complex (Specification 1, 030, 217), exposed and then treated with nitrogen peroxide vapour and heated to form a red image. This latter method is used for spiropyran compounds which are not themselves photochromic but the hydrogen halide complex form is.
Patent GB-1135739-A (GB)
Title: System for conducting and distributing the ink on the steel point of ball pens
IPC: B43K1/08
Filed: 1966-11-21
Abstract: 1,135,739. Ball point pens. IANUS S.A. 21 Nov., 1966 [31 Oct., 1966], No. 51928/66. Heading B6P. Each distribution channel 5 in the seat of a ball point pen tip has an initial section which communicates with the central ink duct 2 and being in a first plane passing through the longitudinal axis of the duct 2. The channel 5 then continues in a second plane at an angle to the first plane. As shown, the channel 5 may fork into two branches 6, each branch lying in planes, each at an angle to the first plane.
Patent GB-1534400-A (GB)
Title: Camera
IPC: G03B19/18
Filed: 1975-12-22
Abstract: 1534400 Camera exposure control AGFAGEVAERT AG 22 Dec 1975 [20 Dec 1974] 52352/75 Heading G2A An exposure control system comprises a diaphragm 20 operated by a stepping motor 17, and a photo-sensitive device 3 positioned behind the diaphragm and arranged to control a pulse generator 12, 27, 28, 29 which operates the motor 17 to change the diaphragm aperture to keep the illumination of the device 3 at a constant level; means being provided for causing the pulse frequency to decrease as the correct aperture is approached, in order to prevent overshoot. The generator is turned off on reaching the correct aperture. As shown, a photo-resistor 3 is connected in a bridge circuit 4, 6, 7. If a large increase in illumination takes place the voltage at the output of an amplifier 5 rises sufficiently to trigger both of a pair of trigger stages 21, 23. A NAND 25 then turns on a transistor 26 to short out a resistor 27 from a pulse timing circuit 27, 28, 29. Pulses are thus generated at a first, high frequency to close the diaphragm. This reduces the output of amp 5 and trigger stage 23 turns off. This results in transistor 26 turning off to reinstate resistor 27 and thereby reduce the pulse frequency to a second, lower value. At balance, a voltage discriminator 9 stops further aperture adjustment. The operation is similar when the illumination drops. In Fig. 3 (not shown), when the photo-electric bridge circuit (34-36) is out of balance and one of two LEDs (49, 50) lights up to illuminate a photo-resistor (51) connected in the pulse timing circuit. As balance is approached, the LED brightness falls and pulse frequency thereby continuously decreases.
Patent GB-1512778-A (GB)
Title: Disc brake actuators
IPC: F16D65/18
Filed: 1974-12-04
Abstract: 1512778 Seals AUTOMOTIVE PRODUCTS Ltd 25 Nov 1975 [4 Dec 1974] 52471/74 Heading F2B A disc brake actuator comprising a piston 10, a cylinder 11 and an annular sealing member 20 of flexible resilient material, e.g. ethylene propylene rubber, located in a groove in either the piston 10 or the cylinder 11, is characterized by a space 18 forming part of the groove and which accommodates movement of the sealing member 20 firstly due to expansion and secondly arising from movement of the piston 10 from the rest position in a direction opposite to that of actuator A, e.g. due to disc wobble, resilience of the sealing member 20 providing a force to restore the piston 10 to the rest position. In the embodiment, the groove and the space 18 are shaped as in Fig. 2 (not shown), to provide a restoring force after movement of the piston in either axial direction. The sealing member 20 is initially square in cross-section (20<SP>1</SP>).
Patent GB-1287426-A (GB)
Title: Improvements in or relating to machine tools
IPC: B23B23/00
Filed: 1969-10-31
Abstract: 1287426 Grinding; tailstocks LITTON INDUSTRIES Inc 31 Oct 1969 [31 Oct 1968] 53353/69 Headings B3D and B3T A roll grinding machine or other machine tool includes a tailstock 21, comprising a housing 36 slidably bearing a support member 38, the side of the housing 36 for location adjacent, e.g., the path of a movable grinding wheel support (14), Fig. 2 (not shown), being open to minimize fouling of the path of the support (14). The housing 36 is slidably adjustable by electrically driven means 90, 91 on ways 22 of a base 11, being clampable by means of bolts 29, with adjusting screws 33, 34 allowing transverse adjustment on a lower housing portion 27. The support member 38 rotatably supports a workcentre 31 on a spindle 49 provided with a thrust bearing 53. To adjust the support member 38 axially of the housing 36, a spindle nut 72 engaged on a non-rotatable screwed rod 69 is driven, e.g. by an electric motor 83, connected to a worm-wheel 80 locked to the nut 72 by transmission means 81, 82, 84-89. Resultant axial movement of the rod 69 is transmitted to a piston 64 located within a chamber 63 of the support member 38, and thence to the spindle 49, through fluid pressure, created in the chamber 63 by an hydraulic accumulator 92. Switch brackets 96, 97 borne by the support member 38, are co-operable with a switch lever 99 to limit the range of axial adjustment, a pressure-actuated switch 93 controlled by the accumulator 92 limiting the pressure of the centre 31 against the workpiece (W), Figs. 1-2 (not shown).
Patent GB-1330153-A (GB)
Title: Method of crease-resist finishing of silk fibrous structure
IPC: D06M13/127
Filed: 1970-11-10
Abstract: 1330153 Crease-resist finishing of silk KANEBO Ltd 10 Nov 1970 [10 Nov 1969 21 July 1970 30 July 1970] 53520/70 Heading DIP A crease-resistant finish is given to silk by treatment with a solution containing at least one of urea, thiourea, and an aliphatic, alicyclic or aromatic compound having at least two hydroxyl groups and a molecular weight of no more than 400; drying until the moisture content is no more than 10%; and treating with gaseous formaldehyde at a temperature of no less than 100‹C. Suitable compounds having at least two hydroxyl groups are ethylene glycol, trimethylene glycol, tetramethylene glycol, pentamethylene glycol, triethylene glycol, 1,2,6-hexanetriol, tartaric acid, glycerin, mannitol, cyclohexane-1,3-diol, cyclohexane-1, 4-diol, - cyclohexane-1,2,3-triol, 2,5-dihydroxybenzoic acid 2,4-dihydroxybenzoic acid, 1,2- dihydroxybenzoic acid, 4,6-dihydroxy-o-toluylic acid, 3,5-dihydroxytoluene and 3,5-dihydroxypropyl benzene. The solution may be in water or an organic solvent, such. as methanol or ethanol, and it may include a polymerisation catalyst such as ammonium chloride, ammonium nitrate, ammonium sulphate, magnesium chloride, zinc nitrate or 2-amino-2- methylpropanol hydrochloride. The gaseous formaldehyde may contain steam. The silk may be blended with wool (silk/wool sharkskin) or polyester fibres.
Patent GB-1332677-A (GB)
Title: Polycarbonate moulding compositions containing stabilised titanium dioxide
IPC: C08K9/02
Filed: 1970-11-12
Abstract: 1332677 Polycarbonate moulding compositions BAYER AG 12 Nov 1970 [22 Nov 1969] 53872/70 Heading C3R [Also in Division C1] A polycarbonate moulding composition comprises a titanium dioxide rutile pigment which contains zinc oxide and has been coated with aluminium phosphate. The polycarbonate may be one prepared by the reaction of a dihydric phenol, optionally in admixture with a glycol, with a carbonic acid derivative, optionally with a dicarboxylic acid, and may have an average molecular weight of at least 10;000. The pigment which may be present in the polycarbonate in a proportion of 0À05-5% by weight may be prepared by the addition of an aqueous suspension of zinc oxide to an aqueous suspension of the titanium dioxide followed by filtering and calcination, the dry ground pigment being formed into an aqueous suspension to which are added aqueous solutions of disodium hydrogen phosphate and aluminium sulphate, the aluminium phosphate being precipitated by adjusting the pH to 7À5-7À7 by the addition of aqueous sodium hydroxide and the treated pigment then being filtered off, washed, dried and finely milled. In examples the pigment is incorporated into a polycarbonate having a relative viscosity of 1À3 as measured on a 0À5% by weight solution in methylene chloride at 25C. and prepared by the reaction of bisphenol A and phosgene or diphenyl carbonate, through an extruder, the composition being reduced to a granulate and injection moulded.