baber/WOPTO huggingface dataset:
Patent GB-1483235-A (GB)
Title: Polymer vulcanizates
IPC: C08C19/36
Filed: 1974-11-08
Abstract: 1483235 Polymer vulcanisates BF GOODRICH CO 8 Nov 1974 48350/74 Headings C3B and C3P A cured rubbery vulcanisate comprises: (A) a resinous particulate phase formed from a mixture comprising (I) an epoxy resin having an average of 1À7-2À3 epoxy group per molecule and an epoxide equivalent of 150-6000; (II) a dihydric aromatic compound, (III) a liquid carboxyl-terminated polymer, having a polymeric backbone of C-C or C-O linkages derived from ethylenically unsaturated monomers and having a carboxyl group content of 0À5-10% by wt. and a bulk visicosity of 500-2,000,000 centipoises at 27‹ C.; and (IV) an amine selected from (a) H 2 N(CH 2 ) n NH 2  (n=1-6), (b) aliphatic polyamines, (c) aralkylamines, (d) cyclic polyamines, (e) heterocyclic secondary amines, (f) aliphatic tertiary amines, (g) heterocyclic tertiary amines and (h) unsaturated ring tertiary amines; the said particles having a diameter from 100Š to 5Á; (B) a continuous rubbery phase formed from a mixture comprising III, I, II and IV. The vulcanisate has a total composition comprising (by wt.) 100 parts of I, 3-36 parts of II, 100- 250 parts of III and 2-10 parts of IV. I may be a diglycidyl ether of a dihydric phenol or of a dihydric aliphatic alcohol. II may be bisphenol A. III may be a carboxyl terminated butadiene-acrylonitrile copolymer. IV may be diethylenetriamine, triethylenetetramine, N- methylpiperazine, piperidine, N-aminoethylpiperazine, 2,4,6 - tris(dimethylaminomethyl)- phenol or its 2-ethylhexanoic acid salt. A typical curing cycle is 16 hours at 120‹ C.
Patent GB-1159542-A (GB)
Title: Preparation of Welding Surfaces on Ceramic Materials
IPC: C04B41/52
Filed: 1966-10-28
Abstract: 1,159,542. Coating with metals. TEXAS INSTRUMENTS Inc. Oct.28, 1966 [Oct. 29, 1965], No.48392/66. Heading C7F. A process of metallizing a ceramic such as forstenite comprises first coating with a liquid suspension containing either cuprous oxide powder or a powder mixture of aluminium and another metal such as tin, heating to cause reaction between the applied powder and the ceramic, removing the excess unreacted powder and finally coating with a metal such as nickel by electroless deposition. The powder may be suspended in e.g. amyl acetate, dextrium, gum arabic or gum tragacanth. The aluminium-tin powder is preferably present in a ratio of 2;1 and is fired in H 2  above the melting point of aluminium e.g. 800 C. to form a spinel by reaction with the ceramic. The loose unreacted powder is scraped off and nickel is electrolessly deposited from a bath containing nickel chloride, sodium hypophosphite and buffers. When a suspension of cuprous oxide is applied the coated ceramic is first heated at 1000 C. in air to form cupric oxide and then heated at 1000 C. in H 2 . The unreacted layer of copper formed is stripped and the ceramic is then electrolessly coated with nickel. The nickel coating is then annealed. The ceramic substrate may first be coated with a glass frit which is fired to form a glaze.
Patent GB-1203123-A (GB)
Title: A meth0d of making an image plane plate
IPC: G03F1/00
Filed: 1968-10-15
Abstract: 1,203,123. Photographic processes. PPG INDUSTRIES Inc. Oct.15, 1968 [Oct.17, 1967], No.48822/68. Heading G2C. During exposure of a photo-sensitive coating 11 on a glass base 10 through a master pattern to ultraviolet light 15 an index matching fluid 18 is provided between the bottom surface of the glass plate and an ultraviolet absorbent glass 17 to reduce the internal reflection on light at the bottom surface of the glass plate, thus reducing halation of the photo-sensitive coating. The photosensitive coating is polymerizable under exposure to ultraviolet light, and the coating is selectively hardened. The exposed plate is treated to remove soluble portions of the coating and the unprotected surfaces of the glass plate etched to a desired depth. The etched portions are filled with an ultraviolet light opaque metallic substance to produce and image plane plate which is then used to produce a printed circuit by exposure of the plate in contact with a photo-resist coated copper plate.
Patent GB-961266-A (GB)
Title: Improvements in or relating to variable resistors
IPC: H01C10/14
Filed: 1962-12-31
Abstract: 961,266. Slip couplings. INTERNATIONAL RESISTANCE CO. Dec. 31, 1962 [Jan. 12, 1962], No. 49084/62. Heading F2U. [Also in Division H1] A friction coupling is incorporated in the drive to the wiper of a variable resistor (see Division H1), two alternative couplings being described. Fig. 1 shows a worm-wheel 70 which is moulded on to the flange 64 of a shaft 62 carrying a wiper arm 76, the worm-wheel slipping on flange 64 if it is driven past the point where wiper arm 76 engages a stop 50. In the alternative form of coupling, Fig. 7, a plurality of fingers 156 on a hollow shaft 154 engage slots 180 in the worm-wheel, the wiper arm 172 being held between the end of shaft 154 and the head of a hollow rivet 162 under the pressure of spring 168 such that the wiper arm slips relative to the shaft when the shaft attempts to drive the wiper arm past stop 146.
Patent GB-1287765-A (GB)
Title: Combustion chamber head for internal combustion engines
IPC: F02B23/00
Filed: 1969-10-07
Abstract: 1287765 I C engine combustion chambers BAYERISCHE MOTOREN WERKE A G 7 Oct 1969 [8 Oct 1968J 49169/69 Addition to 1098796 Heading F1B The inlet and exhaust valve 2, 3 are accomodated in part-spherical zones 9, 10 of the combustion chamber each centred on the respective valve axis and the part spherical zones merge into cylindrical portions 11, 12 approximately in the respective planes perpendicular to the valve axes in which the end faces of the respective valve heads are located at maximum opening. The sparking plug 8 is located in a part-spherical combustion chamber zone 6 which extends from the valve seats to the base of the cylinder head 1. The piston 15 has a raised portion 16 which in the piston top dead centre position, co-operates with the cylinder head to reduce the volume of the combustion chamber on the side remote from the plug 8 and provide a squash zone 17.
Patent GB-1015950-A (GB)
Title: Improvements in or relating to a rotary slotting apparatus
IPC: B26D1/24
Filed: 1964-12-03
Abstract: 1,015,950. Slotting-apparatus. KOPPERS CO. Inc. Dec. 3, 1964 [Dec. 3, 1963], No. 49278/64. Addition to 945,870. Heading B4B. Slotting apparatus as set forth in the parent Specification is characterized in that each cutting edge of the means behind the aligning means for cutting slots in paperboard blanks in coaction with the cutting discs is separated from the associated cutting edge of a cutting disc by a clearance in the range 0À003 to 0À007 inches.
Patent GB-1365352-A (GB)
Title: Methods of manufacturing bearing cages
IPC: F16C33/38
Filed: 1971-10-25
Abstract: 1365352 Bearings TRW Inc 25 Oct 1971 [26 Oct 1970 8 Sept 1971] 49464/71 Heading F2A A method of manufacturing a rolling bearing cage comprises the steps of forming a ring of substantially rectangular cross-section, forming a plurality of circumferentially-spaced pockets by removal of material from said ring, and providing each pocket with at least two mutuallyopposed tangs adjacent to the inner or outer circumferential surface of the ring solely by removal of material therefrom. The cage of Figs. 2 and 4 is made by drilling part-way through the thickness of the ring, and then broaching with a notched broach to form the pockets 14 and tangs 20; the inner diameter side walls are then removed by grinding or milling. Side rings may be riveted to the cage (Fig. 3, not shown). In a further embodiment (Fig. 17), a pilot hole is drilled; then a square-cornered hole is made with a notched broach leaving ridges, parts of which will form the tangs 82, 83; then relieved areas 79 are formed with a reamer, milling cutter, or side drill. Additionally, the inner diameter side walls may be removed by grinding or milling. In a further embodiment (Fig. 19), only the middle parts of the ridges are removed by the milling cutter 91, thereby leaving tangs 94, 95 adjacent both inner and outer circumferential surfaces of the ring. The elements are inserted into the pockets of such cage either by expanding the cage by heating, or by using deformable or contracted rolling elements.
Patent GB-1369636-A (GB)
Title: Attachment of walled sole units to shoe bottoms
IPC: A43D25/10
Filed: 1971-10-26
Abstract: 1369636 Boots &c BRITISH UNITED SHOE MACHINERY CO Ltd 26 Oct 1971 [27 Oct 1970] 49587/71 Heading A3B A pad box for use in the attachment of a walled sole unit 50 to a shoe 46 by adhesive means includes a press cushion arrangement 14, 16, 18 for pressing the sole unit 50 against the shoe bottom, a fluid cushion arrangement 13 for pressing the wall portions of the sole unit 50 against the sides of the shoe, and a toe cushion arrangement 15 for pressing the toe end of the wall against the shoe, the toe cushion arrangement operating independently of the size of the shoe. The pad box housing consists of two parts 10, 12, the lower part 10 housing a forepart cushion 14, a plurality of shank cushions 16 and a heel cushion 18. The shape of the shank cushions 16 can be adjusted by eccentric cam 24 and the inclination of the heel cushion 18 can be adjusted by eccentric cam 26. The fluid cushion arrangement 13, which consists of two membranes 36, 38 and a protective cover layer 62, is fixed between the upper part 12 of the housing and a cover plate 40 having an aperture 48 corresponding to the shape of the shoe 46. The membranes 36, 38 lie over the cushions 14, 16, 18 and are supplied with pressure fluid through an inlet 44. The toe cushion arrangement 15 consists of a rubber block 64 located in a frame 68 which is detachably mounted in a guide block 72 by pin 70. The guide block 72 is secured to the piston rod 76 of a piston 77 and cylinder 78, and is prevented from moving upwardly when the cushion 13 is inflated by a slide plate 92 which moves in guides 94 on the cover plate 40. In use, the pad box is placed on a press plate (not shown) which is raised to bring the shoe 46 into contact with a counter pressure member 58, 60 so that the cushions 14, 16, 18 press the sole unit 50 against the shoe bottom. The toe cushions 66 is then pressed against the toe by piston and cylinder 78 and the fluid cushion 13 is inflated to press the walls against the side of the shoe.
Patent GB-1384252-A (GB)
Title: Bolt press
IPC: B21J13/14
Filed: 1972-04-27
Abstract: 1384252 Bolt press HILGELAND Gebr 27 April 1972 [15 July 1971] 49926/71 Heading B3H A bolt press comprises a ram support 4 mounted for swivelling motion on a double arm lever 5 about a pivot 6 under the control of one of a pair of cam discs 11, 12 on a splined shaft 14 which also operates an ejector pin 26 in the press carriage I through a cam disc 18 and a bell-crank lever 21. A bell-crank lever 21 has a cam follower roller 19 on one arm and a bolt 24 mounted in the other arm 22 parallel to the pivot 25. The bolt has a flattened face 23 abutted by the rear end of the pin 26 which has extensions 35-37. The ejector pin 26 is spring- biased at 28 rearwards and the roller 19 is also biased on to the cam disc 18 by a spring 29. The stroke limits of the press carriage may be adjusted by a device 32-34.
Patent GB-1534699-A (GB)
Title: Camouflage assembly
IPC: F41H3/00
Filed: 1975-12-08
Abstract: 1534699 Camouflaging a gun OGUS NETZE-UND WIRKWAREN GmbH & CO KG 8 Dec 1975 [6 Dec 1974] 50195/75 Heading F3X A gun 12 is camouflaged by a camouflage net 32 which is supported by a member 18 having arms which are connected together by a cross-member 26 and are pivotally connected at their free ends to a gun mounting 16. The member 18 can be tilted from the position shown in Fig. 1 where the gun is camouflaged to the position shown in Fig. 3 where the gun is partially exposed. The net 32 has an opening 34 which allows firing of the gun when the gun is camouflaged. Preferably the net 32 is also supported by support members 20 and 22 which are provided with flat cross-members 28, 30 respectively and are pivotally mounted to the gun mounting 16.
Patent GB-1413336-A (GB)
Title: Azo disperse dyes
IPC: C09B39/00
Filed: 1972-11-01
Abstract: 1413336 Mono-azo disperse dyes SUMITOMO CHEMICAL CO Ltd 1 Nov 1972 [1 Nov 1971] 50314/72 Heading C4P [Also in Division C2] Novel dyestuffs of the formula (wherein D is a diazo component residue of the benzene, thiazole, benzothiazole or benzisothiazole series; X is H or C 1-4  alkoxy; Y is H, CH 3 , Cl, Br or acylamino; Z is H, C 1-4  alkyl optionally halo-, aryl-, C 1-4  alkoxy-, aryloxy-, cyano-, acyloxy-, C 2-5  alkoxycarbonyl-, or C 2-5  alkoxycarbonyloxy-substituted, or is C 2-4  alkenyl, -CH 2 CH(V)-Cl or -CH 2 CH(V)- Q-R where Q is O or S, R is optionally substituted C 1-4  alkyl, optionally substituted aryl or C 2-4  alkenyl and V is -CH 2 -Q<SP>1</SP>-R<SP>1</SP> ,  where Q<SP>1</SP> is O or S and R<SP>1</SP> is defined as R) are prepared from the diazotized amine DNH 2  and an appropriate coupling component. They are used to dye hydrophobic fibres, particularly polyesters. In one example a polyester cloth is dyed using (a) one of the novel dyestuffs and (b) a known dye of the formula and the results are compared.
Patent GB-1363118-A (GB)
Title: Liquid-liquid contacting tray system
IPC: B01D11/04
Filed: 1971-11-02
Abstract: 1363118 Contacting column UNIVERSAL OIL PRODUCTS CO 2 Nov 1971 50809/71 Heading B1R A contacting column comprises a first plurality of vertically spaced trays 2 each having elongate areas of multiple perforations 15 elongate non-perforate areas 16 and an open area 4 for vertical flow of the non-dispersed phase, a second plurality of trays 8 interspaced between the first trays, each having a non-perforate area in alignment with the open areas 4, open areas 9 in alignment with the non-perforate areas 16, and perforate areas 10 in alignment with the perforations 15, vertically disposed weirs 12 and curtain walls 13 extending upwardly and downwardly respectively from each tray adjacent the open areas thereof. The trays may be supported by interconnecting struts 21, Figs. 6 and 7 (not shown). The open areas 9 and each half of trays 2 may be segment shaped or annular in cross-section.
Patent GB-1364737-A (GB)
Title: Preparation of epsilon-caprolactone
IPC: C07D315/00
Filed: 1971-11-02
Abstract: 1364737 Ammoniation catalyst TEIJIN Ltd 2 Nov 1971 [4 Nov 1970 20 Nov 1970] 50917/ 71 Heading B1E [Also in Division C2] Catalysts used in the ammoniation of e-caprolactone to form #-caprolactam comprises CuO/TiO 2  (Example 5a), copper chromite/BaO (Example 7a) and CuO/TiO 2 /NiO (Examples 8a and 12a) and are obtained, in the case of the mixed oxides, by calcining the precipitates formed on adding an aqueous Na 2 CO 3  solution to aqueous suspensions of TiO 2  in the nitrates of copper + nickel. The TiO 2  used has diameters of 28 to 35Á. The copper chromite/BaO catalyst is prepared by adding an aqueous solution of (NH 4 ) 2 Cr 2 O 7 /NH 3  to an aqueous solution of the nitrates of copper and barium and calcining the precipitated powder. The catalysts are reduced in situ using H 2  prior to use in the ammoniation reaction.
Patent GB-1214040-A (GB)
Title: Improvements in or relating to projectiles having a sub-calibre shell
Inventor: BIRKIGT LOUIS
IPC: F42B14/06
Filed: 1968-10-28
Abstract: 1,214,040. Projectiles. BREVETS AEROMECANIQUES S.A. 28 Oct., 1968 [3 Nov., 1967], No. 50949/68. Heading F3A. A projectile comprises a sub-calibre shell 1, Fig. 1, e.g. of tungsten carbide or uranium U238, and a front cap 8 which is destroyed only when the projectile has just left the barrel of a gun. The cap is destroyed by an explosive charge 9 which is detonated as a striker 10 is brought against the charge by relative movement of the shell towards the cap. The shell is caused to move forwards under its own inertia as the projectile decelerates as well as under the action of a spring 11 following the expansion of a split locking ring 6 under the action of centrifugal force. The shell carries a tracer charge 12 and separates from an aluminium alloy shoe 3 in flight. In another embodiment the forward movement of the shell is assisted by a propellant charge 13, Fig. 2, which is ignited by a tracer charge 12 as the shell moves forwardly under its own inertia to expose the adjacent surface of the propellant charge.
Patent GB-1370375-A (GB)
Title: Data character recognition systems
IPC: G06V10/24
Filed: 1971-11-02
Abstract: 1370375 Character recognition systems FUJITSU Ltd 2 Nov 1971 [2 Nov 1970] 50971/71 Heading G4R A character recognition system has means for detecting a reference mark which is at a known position relative to a character field. Detection of the mark permits the operation of a processing unit preceding the recognition unit only during a certain period following the detection, during which period the character field is presented to the scanner. As disclosed the character is hand-written in a frame 12, Fig. 2, on a document such that no part of the character touches marks 71, e.g. as in Fig. 11. The frame has an associated reference mark 11. The document is scanned by a column of photocells 20 as it moves beneath them. The signals from the cells are sampled to provide a serial binary video signal, equivalent to a vertical raster scan, of which each bit corresponds to an elementary area of the scanned area. The video signal passes to circuitry, Fig. 5 (not shown), which indicates the presence of the reference mark when 3 successive black bits are detected in each of two vertical scans of the column of cells. At a preset time thereafter, determined by a counter fed with horizontal scan clock pulses, a series of X-clock pulses is delivered, corresponding to successive vertical scans of the photocell column as it passes over frame 12. The video signal also passes to circuitry, Fig. 6 (not shown), which detects the bottom edge of the reference mark and, at a preset time thereafter, generates Y-clock pulses, corresponding to the sampling of those cells of the column that scan frame 12.  The video signal and the X-clock and Y- clock are fed to gating circuitry comprising a number of radius gate circuits, e.g. as in Fig. 10 (not shown). Each radius gate samples points lying on a line that approximates a radial line or part of a radial line from one of the two marks 71 and provides an output 1-bit if any part of the character crosses that line. Fig. 11 shows radii that are crossed by a numeral 2. The radius gate circuit outputs are grouped in 7 groups corresponding to the radial line portions lying in 7 zones of the frame-top, centre, bottom, and upper and lower left and right. The groups of signals passes to zone gates which determine features of the character. For example, one form of zone gate determines whether the zone of the frame has a long character portion in it, e.g. as indicated at 112 and 115, Fig. 11, by summing the relevant radius gate outputs and comparing the sum with a threshold, Fig. 12 (not shown). Such a gate is insensitive to small gaps in the character. Another form determines whether there is an open portion of the character in the zone, e.g. as indicatd at 113,114, Fig. 11, by detecting that no character portion crosses, say, no two adjacent radii, Fig. 13 (not shown). The outputs of the zone gates represent the features present in the character and are unique to the character, so permitting recognition.
Patent GB-512729-A (GB)
Abstract: 512,729. Calculating-apparatus. BARKER, W. J. March 15, 1938, No. 8060. [Class 106 (i)] Apparatus for use in calculating the cost of given quantities of mixtures such as concrete comprises a table movable to indicate the quantities.of the ingredients in various mixtures and other tables adjustable to show the cost of said quantities at various prices. The first table is marked on a band wound on two rollers operated by a shaft 15 carrying-a pinion gearing with both rollers. The band shows at an aperture 18 the number of the mixture and at apertures 19, 20, 21 both the weight and the volume of cement stone and sand in a cubic yard of the mixture for each of four grades A - - D of stone. The cost of the cement is determined from a table on a band 32 wound on two rollers operated by a knob 42. The band 32 is moved until the weight (23 tons) determined from the first table appears in an aperture 33, the cost of this amount, at the various prices per ton marked on the casing at 38, then shows in a slot 34. A cursor 36 carrying a lens may be provided. Similar bands operated by knobs 43, 44 are provided for the stone and sand calculations.
Patent GB-1414709-A (GB)
Title: Disposable diapers
IPC: A61F13/15
Filed: 1973-11-06
Abstract: 1414709 Disposable diapers COLGATEPALMOLIVE CO 6 Nov 1973 [29 Nov 1972] 51382/73 Heading A5R A disposable diaper 10 comprises a liquidimpervious polyethylene sheet 12, an absorbent core 14 overlying the sheet and consisting of a mat of wood fluff 20 sandwiched between absorbent tissues 22 and 24, a layer of powder 16 overlying the core, and an inner sheet 18 of non-absorbent non-woven tissue perforated at 26 and held taught for compacting the powder.
Patent GB-1249406-A (GB)
Title: Twin-screw vessel
IPC: B63H5/08
Filed: 1969-10-22
Abstract: 1,249,406. Twin-screw vessel. MITSUBISHI JUKOGYO K.K. 22 Oct., 1969 [26 Oct., 1968], No. 51855/69. Heading B7V. A twin-screw vessel has two identical screw propellers 2a, 2b symmetrically mounted one on each side of the longitudinal central plane 3 and a rudder 4 aft of the propellers mounted in the central plane. The distance D between the axes of the propellers is greater than the diameter d of each propeller and is equal to or less than the diameter of each propeller plus the thickness of the rudder.
Patent GB-1207348-A (GB)
Title: Improvements in or relating to rotary electrical machines
IPC: G01R31/34
Filed: 1967-11-15
Abstract: 1,207,348. Bearings. ROBERT BOSCH G.m.b.H. 15 Nov., 1967 [16 Nov., 1966], No. 51891/67. Heading F2A. [Also in Division H2] A bearing fault detecting device in a rotary electrical machine, e.g. a vehicle A.C. generator, comprises a stationary substantially annular contact 28 coaxial with the rotor axis and so engageable with a contact 27 rotatable with the rotor 11 that a conductive connection is made between the contacts when the rotor is displaced radially by a distance less than the length of the air gap 30 between the rotor and stator 20. In the embodiment shown, the contact 28 is a ring formed by an extension of the bearing plate 22, and the contact 27 is an extension of a slip ring 15 conveying current to an excitation winding 14 between claw polepieces 12, 13. Both bearings may have such a device and a protective layer 29 may be applied to one ring and the other ring roughened. In a modification, the outer contact 28 is hexagonal. Visual warning of a fault is given by a changing indicator lamp 40 connected between the outputs A, B of two rectifier stalks 31, 34 respectively feeding a battery 32 and other loads 33, and the winding 14; such fault shorts the winding and the lamp is lit by the battery. The device is also applicable to generators having permanent magnet rotors (46) in which case, Fig. 8, a warning device, e.g. a dashboard lamp is operated by a relay (49) connected between the contacts 27, 28 and a 3 ph. stator winding (47) feeding a bridge rectifier (48) which may be controllable. The rings 27, 28 may be of sintered bronze in order to act as emergency bearings.
Patent GB-1486225-A (GB)
Title: Circular saw blade
IPC: B23D61/04
Filed: 1974-12-03
Abstract: 1486225 Circular saw teeth CENTROMETALCUT AB 3 Dec 1974 52238/74 Heading B5L In a circular saw blade, for sawing steel, comprising teeth A, B each having a top clearance surface 4 a cutting surface 3, one or more cutting surface chamfers 3a-3c, and lateral clearance surfaces 1, 2, each tooth has a notch 5 (e.g. in teeth A, Figs. 3, 4) formed in its top clearance surface 4 and the notches of successive teeth A, B are disposed at equal distances from the blade plane of symmetry 6 and alternately on one side and the other of said plane. The notches may trisect the tooth width and may, as shown, extend from the transitions between the chamfers 3a-3c. The teeth may be of hard metal and soldered to a blade body 10.