baber/WOPTO huggingface dataset:
Patent GB-1326889-A (GB)
Title: Fading resistants for colour photographic images
IPC: C07D211/94
Filed: 1971-05-28
Abstract: 1326889 Piperidine derivatives KONISHIROKU PHOTO INDUSTRY CO Ltd 28 May 1971 [1 June 1970] 18126/71 Headings C2C and C2P [Also in Divisions C3 and G2] Piperidine derivatives of the formula wherein Y is a hydrogen atom, hydroxyl group, oxyl radical, sulphinyl or sulphonyl radical of the formula -SO-R 5  or -SO 2 -R 5  respectively, wherein R 5  is an alkyl or aryl group; R 1 , R 2 , R 3  and R 4  are alkyl groups or, R 1  and R 2  or R 3  and R 4 , together with the carbon atom to which they are attached, form a (C 5 -C 7 ) saturated alicyclic group or a group of the formula and X is a group of the formula wherein R 6  is a cyano or carbamoyl group; R 7  is a hydrogen atom or an alkyl group; R 8  is a phenyl or alkoxy group; Z<SP>1</SP> is a hydrogen atom, an alkyl group, an aralkyl group, an aliphatic or aromatic monovalent acyl group, an N-substituted carbamoyl group, an N-substituted thiocarbamoyl group or a monovalent group obtained by removing one hydroxyl group from an oxyacid; p is 1, 2, 3, 4 or 5; when p = 1, Z<SP>2</SP> is a carbonyl group, a group of the formula wherein R 9  is an aliphatic or aromatic divalent organic radical; when p = 2, Z<SP>2</SP> is a group of the formula wherein R 10  is a trivalent aliphatic or aromatic organic radical; when p = 3, Z<SP>2</SP> is a group of the formula  wherein R 11  is a tetravalent aliphatic or aromatic organic radical, or, for any of the said values of p, Z<SP>2</SP> is an atom or group of valency p + 1 obtained by removing p + 1 hydroxyl groups from an oxyacid, are used as fading resistants for photographic dyes.
Patent GB-467948-A (GB)
Title: Improvements relating to spray nozzles
IPC: F02M61/10
Filed: 1936-06-30
Abstract: 467,948. Spray-producers. FRENCH, L. O. June 30, 1936, No. 18139. [Class 69 (iii)] [Also in Groups XXVII and XI] In a liquid-spraying device, a check valve is normally held against a seating surface by a resilient valve retainer and nozzle member and is opened by the pressure of the liquid to be sprayed. In Fig, 1, the valve 17 is held against a seat on the casing 10 or on a separate member 15 by a steel retainer and nozzle member 22 the outer edge of which is held against a filler member 26 made of bronze, brass or copper by a flanged clamping nut 25. Grooves 19, 20 in the valve lead the fuel to the valve seat and the fuel is sprayed through an opening 24 either through tangentially disposed grooves 28 communicating with a conical recess 27 in the end 21 of the valve or through a diametrically extending groove. The end of the valve may be conical. In the pump-injector unit shown in Fig. 5, the valve 37 is held against an inset seat 36 in a separate member 34 by the valve retainer and nozzle member 40 and the fuel is delivered through a slot 39 in the end of the valve to a detachably mounted nozzle 41. In the construction shown in Fig. 9, the valve 52 has a pin 54 which extends through an opening in a flanged retainer and nozzle member and the fuel is delivered through radial passages 57 to an annular groove 56 around the pin 54. The area of the valve seat is reduced by providing it with undercut grooves 59.
Patent GB-1400636-A (GB)
Title: Thermoplastic sheet materil
IPC: C08L33/02
Filed: 1973-04-16
Abstract: 1400636 Sheet material based on bitumen PERMANITE Ltd 16 April 1973 [18 April 1972] 18142/73 Addition to 1271233 Headings C3N and C3P A flexible waterproof sheet comprises a mixture of bitumen having a softening point of 70‹ C. or above, synthetic elastomeric material compatible therewith and non-fibrous reinforcement filling together with synthetic thermoplastic fibrous reinforcement filling, the said synthetic elastomeric material constituting at most 50% by weight of the mixture and comprising a mixture of chlorosulphonated polyethylene with an elastomer other than polyvinylchloride, vinylidene halide copolymer, atactic polypropylene, styrene-butadiene block copolymer, chlorinated rubber or chlorinated polyethylene. The elastomeric material preferably consists of chlorosulphonated polyethylene and ethylene/vinyl acetate copolymer. The fibrous synthetic thermoplastic filler may be polyester, nylon, polyacrylic, cellulose acetate, polypropylene, rayon or polyvinyl chloride. Mineral, glass, animal or vegetable fibres may be included. Fire resistance may be improved by adding antimony sulphide or antimony oxide and chlorinated paraffins. The non- fibrous filler may be carbon black, silica, polyester resin or calcium carbonate. The specific Examples (1, 2) disclose compositions comprising bitumen, calcium carbonate, carbon black, polyester fibre, chlorinated paraffin and a mixture of chlorosulphonated polyethylene and ethylene-vinyl acetate copolymer
Patent GB-440040-A (GB)
Title: Improvements in hinges and the like for moulded articles
IPC: E05D7/10
Filed: 1934-06-19
Abstract: 440,040. Hinges. POWER, R. F., 18, Chesterford Gardens, Hampstead, London. June 19, 1934, No. 18183. [Class 65 (ii)] A hinge connection between two members moulded from a material such as synthetic resin is formed by moulding a hinge element on one member and a second hinge element on the other and then springing or warping one or each member, preferably while still hot, to effect engagement of the hinge elements, after which the warped member is restored to its original shape. In the form shown in Fig. 2, applied to the flat lid of a box, the lid 2 is formed at the hinging edge a rib having at each end a hemispherical projection 4, while the box 1 has lugs 5 with hemispherical recesses 6 to receive the projections 4; assembly of the parts is effected by bending the lid 2 as shown, the lid then being allowed to spring back to its normal shape. In a modification, when the lid has flanges which prevent bending, the back of the box may be slit for part of its depth just inside each lug 5, so that these lugs can be sprung outwards to receive the lid; the upper edge of the back wall of the box may be shaped to fit the rounded edge of the rear flange of the lid. In these forms assembly may be facilitated by having the box member hot, in which condition the distance between the lugs 5 will be increased, the amount of distortion required thus being reduced. In a further modification, Fig. 12, the lid 2 has a rib 3 with a trunnion 12 projecting from each end, and the box 1 is formed with split sockets 5 to receive the trunnions.
Patent GB-1212420-A (GB)
Title: Arsenic compounds as first stage additives in direct esterification of dicarboxylic acids
IPC: C08G63/85
Filed: 1968-04-17
Abstract: 1,212,420. Arsenic compounds as esterification catalysts. FMC CORP. 17 April, 1968 [26 June, 1967], No. 18204/68. Heading C3R. Polyester prepolymers are prepared by directly esterifying a dicarboxylic acid in the presence of a basic cation arsenite, ammonium arsenate, diammonium arsenate, calcium arsenate, lithium arsenate, sodium arsenate, disodium arsenoacetate monohydrate or an arsenate of which the basic cation has an organic substituent. Other specified catalysts are disodium methyl arsenate, potassium hydrogen arsenite, sodium dimethyl arsenate, sodium arsenite or combinations thereof.
Patent GB-600677-A (GB)
Title: An improved catalyst
IPC: C07C45/00
Filed: 1945-07-17
Abstract: A catalyst comprises a difficultly reducible metal oxide, e.g of zinc, cerium and/or magnesium, admixed with a minor proportion, say 1-6 per cent, of bismuth oxide, and bonded to the surface of a rustable ferrous metal support by a film of rust formed thereon. Suitable materials are chips &c. of pure, wrought or cast iron, of steels, or of ferrous alloys.  The mixed oxides may be slurried with water and coated on the previously rusted support, or on an unrusted support and dried, whereby the rust film is formed.  Alternatively, the coated unoxidized support may be charged directly into the reaction chamber.  The catalyst is suitable for dehydrogenation reactions involving compounds of the formula RR1CHOH, where R is alkyl, aryl, alkaryl, aralkyl or cycloalkyl and R1 is hydrogen, or alkyl, aryl, aralkyl, alkaryl or cycloakkyl, such as methyl, ethyl, propyl, phenyl, benzyl, methyl-phenyl or cyclohexyl.
Patent GB-285307-A (GB)
Title: Improvements relating to the construction of vehicle brake shoes
IPC: F16D51/50
Filed: 1927-07-09
Abstract: 285,307. Clark, D'A. M., (Bendix Brake Co.). July 9, 1927. Blocks and shoes acting on drums; blocks and shoes; compensating for wear.-A construction of brake shoe, particularly for an internal drum brake, comprises an arcuate band for carrying the friction lining, a pair of spaced stiffening flanges secured to the band and a reinforcing member, preferably of channel section and disposed parallel to the band, secured to the flanges. A separate reinforcing member may be secured to that portion of the flanges which forms a pivot arm for the shoe. As shown in Fig. 1, the brake comprises shoes 24, 26 pivoted to the backing plate respectively at 30 and 34 and a shoe 28 connected to the shoe 26 by a floating pivot 52. The shoes are applied to the drum by a cam 68, Fig. 3 engaging rollers 72 on the shoes 24, 28 and carried by a shaft 70 mounted on a plate 76 secured to the backing plate 22 by bolts 78 which pass through slots in the backing plate to permit the cam to centre with respect to the shoes when the brake is applied. The cam is provided with a central rib 74 projecting between the rollers 72 to position the shoes laterally. To maintain a predetermined amount of clearance between the shoe 26 and the drum, the forked end of a member 56 pivoted at 58 with frictional resistance to the backing plate 22 embraces the grooved end of the pivot 52. If the movement of the shoe 26 in applying the brake exceeds the play provided between the pivot 52 and the fork the member 56 is turned on its pivot 58 and the shoe is thus adjusted. The shoe 26 comprises a lining-carrying band 82, Fig. 8, to which is secured, as by welding, a pair of flanges 80. A reinforcing member 88 of channel-section is secured to the flanges 80, preferably as shown at their inner edges. The flanges of the member 88 may be disposed between the flanges 80 as shown or at the outer side of these flanges. A separate channel-section member 92 may be secured to that part of the flanges 80 which forms the pivot arm of the shoe. The ends of the flanges 80 are secured to a bushing 90, Fig. 5, sleeved on the pivot 34. The shoe 24 comprises a pair of flanges secured to the lining-carrying band and straddling the ends of the flanges of the shoe 26. The shoe 28 has a single flange which is attached to the pivot 52 by a bushing lying between bushings secured to the ends of the two flanges of the shoe 26.
Patent GB-235416-A (GB)
Title: A device for imparting a limited angular rotation to a lever
IPC: B61L23/24
Filed: 1924-07-30
Abstract: 235,416. Tyer & Co., Ltd., and Leake, F. W. July 30, 1924. Lever linkages; levers and rods, locking; cam mechanism.-Relates to actuating devices for the releasing mechanism of railway signals and token instruments for single line working or for other purposes, and comprises an arrangement wherein, in order to transmit movement from one lever to a second coaxially pivoted lever, it is necessary to insert a gag or displaceable bar between the free ends of the levers. The first lever may be moved through a limited angle by hand or by a rotary cam, whilst the second lever may normally engage a recess in a slidable bar, acting as a locking device until the gag is brought into position bv electromagnetic, mechanical, or other means. In the form shown, an actuating lever 1 and a double-armed actuated lever 6, 7 are coaxially pivoted about a pin or shaft 2, the lever 1 resting on a supporting pin 11 and being adapted to be raised by a cam swell 3 when the shaft 5 is rotated, whilst the lever 6, 7 is normally held by a spring 10 against a stop 12 with its end 7 in engagement with a notch 8 in a slidable bar 9 which is thereby locked. Movement imparted by the cam 4 to the lever 1 is only transmitted to the lever 6, 7 when a displaceable bar 17 is interposed. The bar 17 is pivoted at 18 and works in the slotted end 20 of an armature lever 13 pivoted at 14 and normally retracted against a stop 22 by a spring 21. When the electromagnet 16 is energized, the bar 17 is interposed between the ends of the levers 1, 6 and enables the cam actuation to effect release of the bar 9.
Patent GB-1267544-A (GB)
Title: Improvements in electrical devices, such as voltage regulators
IPC: H02K11/00
Filed: 1969-04-10
Abstract: 1,267,544. Circuit assemblies. ROBERT BOSCH G.m.b.H. 10 April, 1969 [11 April, 1968], No. 18316/69. Heading HlR. [Also in Division C3] A voltage regulator for a vehicle generator generally similar to that described in Specification 1,256,292 is modified by providing the resistors 53, 55, 56, 57, 58 of that Specification in the form of the parts R5, R4, R3, R2, R1 of a resistance film arranged on a ceramic plate 76, which is secured to various sections of the sheetmetal grid 21 by metal tongues 45, 46, 48, 49, 50, 51 projecting from these sections and engaging the resistance film to make electrical contact therewith. In another embodiment, Figs. 6 to 9 (not shown), the sections and tongues are modified to avoid the need for holes in the ceramic plate. A further embodiment, Figs. 10 to 13 (not shown), uses two sets of tongues engaging respective sides of the plate, with one set contacting appropriate portions of the resistance film. This arrangement prevents damage to the film during assembly and enables all the regulator components to be simultaneously soldered in a dipping bath.
Patent GB-562392-A (GB)
Title: Improvements in or relating to negative feedback amplifiers
IPC: H04B1/74
Filed: 1942-12-24
Abstract: 562,392. Valve amplifying circuits. STANDARD TELEPHONES & CABLES, Ltd., ROCHE, A. H., and ELLIOTT, T. W. Dec. 24, 1942, No. 18319. [Class 40 (v)] Instability during switching operations, as when a reserve negative feed-back amplifier is connected in parallel at a relay point' in a coaxial cable multi-channel carrier current signalling system, is avoided by the provision of means to ensure that the frequency of series resonance of the input and/or output transformer of one amplifier differs from that of the other amplifier. This may be achieved by connecting the second amplifier A2 through impedance networks N1, N2 so as to modify the impedance presented to the transformer of the amplifier A1. The networks will generally comprise reactive impedances and in a balanced system may be constituted by a series inductance in the conductor corresponding to the central conductor of the coaxial cable. In this way the effective leakage inductance of the corresponding transformer is increased. The networks may operate at frequencies outside the signal range and only a single network comprising only a single inductance may be used. The Specification gives an analysis of the effect of a parallel transformer and curves of the gain andphase-shift with frequency obtained.
Patent GB-907059-A (GB)
Title: Production of pyridine bases
Inventor: HARGRAVE KENNETH RAYMOND
IPC: C07D213/09
Filed: 1960-05-25
Abstract: A condensation catalyst comprises silica, alumina, or a mixture of these.  It may also contain as optional constituents titania, zirconia, ceria or thoria and zinc, codmium, tin, lead, tungsten, nickel, cobalt, chromium, molybdenum, iron, copper, palladium or silver either as the metal or a compound thereof.ALSO:Alkyl pyridines are obtained by heating a mixture of a 3-alkoxybutyraldehyde, propionaldehyde and ammonia, preferably in the presence of a condensation catalyst.  The process is preferably carried out at a temperature of 300-500 DEG C.  Suitable catalysts are, for example, silica, alumina or a mixture of these, and may also contain titania, zirconia, ceria or thoria.  In addition the catalyst may contain zinc, cadmium, tin, lead, tungsten, nickel, cobalt, chromium, molybdenum, iron, copper, palladium or silver in metallic form or as a compound.  In the example 3-methoxybutyraldehyde, propionaldehyde and ammonia are heated in the presence of a mixture of silica and alumina to give a mixture of 3,4-lutidine, 3,5-lutidine, and 2-ethyl pyridine and smaller amounts of pyridine and picolines.
Patent GB-174034-A (GB)
Title: Improvement in packings for eggs and the like
IPC: B65D85/32
Filed: 1921-07-07
Abstract: 174,034. Koppelman, M. Jan. 10, 1921. [Convention date]. Packing eggs, incandescent lamps, &c.-Eggs, incandescent lamps, &c. are packed in containers provided with partitions formed by sheets 3, Fig. 1, with circular apertures 4 and spaced apart by vertical sheets 1, 2 notched to cross each other. The upper and lower openings of the compartments are separated by a distance less than the greatest diameter of the article to be packed, and the tiers are, separated by a greater distance than the distance to which the articles project through the openings. In a modification, Fig. 4, the sheets with upper openings are dispensed with and the lower openings are bordered by annular members 7 adapted to prevent the egg &c. in the adjacent partitions from moving. The material may be waterproofed. Specification 166,134 is referred to.
Patent GB-456228-A (GB)
Title: An improved starting mixture control and oil pressure indicator for internal combustion engines
IPC: F01M1/20
Filed: 1935-06-29
Abstract: 456,228. Spray carburetters. JARVIS, J. N., 34, Fairview Road, Oxton, Birkenhead. June 29, 1935, No. 18652. [Class 7 (iii)] A fuel control or air choke valve is connected to a piston rod 5, the piston 4 of which is urged towards the inner end of a cylinder 1 by parallel springs 12 engaging a cross-bar 10 on the rod. The inner position of the piston 4 provides a rich mixture for starting and from this position it is forced outwards by pressure of the lubricating oil to weaken the mixture as the engine becomes warm. The oil is forced along a passage 17, in a valve casing 15 on the end of the cylinder, where it forces a ball valve 19 off its seat and around a U-shaped passage 21 beyond a small controlled passage 23 leading into the cylinder 1. The displacement of the piston 4 brings the cross-bar 10 into contact with an arm 28 forming part of an electrical circuit including a pilot-lamp, the connection being broken at the end position of the piston 4. The springs 12 return the piston when the oil pressure falls, a first rapid displacement to an extent sufficient to fill the tube 21 with oil and re-seat the valve 19 bringing the cross-bar 10 into engagement with the arm 28 to light the pilot lamp. Thereafter, the oil leaks slowly through a controlled byepass 26 until the cold starting position of the piston 4 is reached.
Patent GB-1365551-A (GB)
Title: Seals
IPC: B21D39/00
Filed: 1971-06-02
Abstract: 1365551 Telescopic hydraulic dampers GIRLINGLtd 31 May 1972 [2 June 1971] 18700/71 Heading F2S [Also in Division B3] An hydraulic damper has a rod seal 12 of cold deformable plastics material located within an outer reservoir tube 11 by rolling over the end portion of the tube. A separate sealing gasket between the seal and tube is not used. The plastics material may be thermo-setting, and the rolling over process performed by a roller R1 exerting both radial and axial pressure. A further roller R2 may be moved axially to complete the process.
Patent GB-806047-A (GB)
Title: Improvements in or relating to steroids and the manufacture thereof
IPC: C07J1/00
Filed: 1956-02-20
Abstract: The invention comprises a 9(11)-dehydro-17-alkyltestosterone represented by the formula <FORM:0806047/IV (b)/1> wherein R1 is hydrogen or the acyl radical of a hydrocarbon carboxylic acid containing from 1 to 12 carbon atoms and wherein R is a methyl or ethyl group, and the 3-pyrrolidyl enamines thereof, and the preparation thereof by (a) reacting an 11b -hydroxy-17-alkyltestosterone with N-bromacetamide and sulphur dioxide under anhydrous conditions and, if desired, reacting the product with the anhydride of an organic carboxylic acid containing 1-12 carbon atoms inclusive; or (b) reacting the 3-enamine of 4,9(11) - androstadiene - 3,17 - dione with an alkyl magnesium halide to produce the 3-enamine of a 9,11-dehydro-17-alkyltestosterone, hydrolysing the latter compound with aqueous alkali and reacting the product with the anhydride of an organic carboxylic acid containing 1-12 carbon atoms inclusive.  As an alternative to (a) dehydration may be effected by means of p-toluenesulphonyl chloride followed by reaction with sodium formate.  Examples describe the preparation of 9(11) - dehydro - 17 - methyltestosterone, the 3-pyrrolidyl enamine thereof and 17-esters thereof.  Specifications 724,149 and 750,941 are referred to.
Patent GB-992878-A (GB)
Title: Improvements in or relating to voltage regulating arrangements
Inventor: ILLINGWORTH LEWIS
IPC: G05F3/04
Filed: 1963-05-11
Abstract: 992, 878. Current and voltage stabilizers. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. April 13, 1964 [May 11,1963], No. 18748/63. Heading G3X. [Also in Division H2] A filter L1, C1, supplied with a square wave input voltage has a sinusoidal output which supplies a load (not shown) over a regulator connected in shunt with the load. The regulator comprises a bridge rectifier network constituted by diodes MR1 to MR4, one diagonal of the bridge being connected across the supply leads to the load in series with an inductance L2 and a Zener diode being connected in the other diagonal in such a manner as to oppose flow of current in the rectifier network for applied instantaneous voltages less than the Zener voltage. The arrangement is such that as the load current increases, the voltage output level of the filter tends to decrease whereby the regulator current also decreases; similarly, a decrease in load current brings about an increase in regulator current so that effectively a constant load is presented to the filter and its supply source whereby the output voltage from the filter tends to remain constant.
Patent GB-1405088-A (GB)
Title: Slow release formulation
IPC: A61K9/20
Filed: 1971-06-03
Abstract: 1405088 Sustained release medicaments MUNDIPHARMA AG 4 Aug 1972 [3 June 1971] 18839/71 Heading A5B Sustained release pharmaceutical formulations comprise a blend of active compound(s), higher (C 8-18 ) aliphatic alcohol and hydrated, water-soluble sodium hydroxy alkyl cellulose. The blend may be made by mixing the first two ingredients with anbydrated cellulose derivative and subsequently adding sufficient water to hydrate it to the desired degree (usually 2-3 times its dry weight). The blend may optionally be mixed with further diluents and excipients and tableted or encapsulated.
Patent GB-1095267-A (GB)
Title: Treatment of ion-exchange resins
Inventor: ARDEN THOMAS VICTOR
IPC: B01J49/00
Filed: 1964-05-06
Abstract: Mixed powdered cation and anion exchange resins present as a layer on a filter are regenerated by passing through the layer successively solutions of an alkali metal salt, e.g. 5% w/w NaCl, an alkali metal hydroxide, e.g. 2% w/w NaOH, and ammonium hydroxide, e.g. 2% ww.  The resins are used for treating boiler condensate to remove salts particularly those containing iron, copper, and silicate ions. Resins specified have particle size about 60m  and may be cross-linked styrene polymers, the cation exchangers having sulphonic acid groups and the anion exchangers quaternary ammonium groups.