baber/WOPTO huggingface dataset:
Patent GB-362125-A (GB)
Title: Improvements in or relating to bridge constructions
IPC: E01D6/00
Filed: 1930-11-11
Abstract: 362,125. Bridges. WICHERT, E. M., 35, Eastwood Road, Wilkinsburg, Pennsylvania, U.S.A. Nov. 11, 1930, No. 33946. Convention date, Nov. 29, 1929. [Class 20 (i).] A continuous bridge construction is formed of separate spans with the adjacent ends connected together by pin-jointed polygons which are movably supported on abutments but transmit stresses from span to span. The adjacent ends of the spans 1, 2 are joined at their lower chords by pin-jointed inclined rods 10 carried by a support 14 which is in turn supported on rollers on an abutment 5; the ends 13 of the upper chords are joined to the ends of the lower chords by diagonals 11. The shore span 1 at one end of the bridge is' carried by a fixed abutment 8 while the shore span 3 at the other end of the bridge is supported on a rocking arm 7 so as to give in case of expansion and contraction or of settlement of the intermediate abutments. In a modification, the linked rods 18 joining the ends of adjacent spans may be pivoted at 19, 21 to rocking arms 17 carried by the abutment, or the upper chords of the spans may be directly connected at 22 while the lower chords are connected by rods 23. A further means of connection is shown in Fig. 6, comprising connectors 25 and diagonals, pin-jointed to a rocking arm 26. Expansion joints are provided for the deck of the bridge.
Patent GB-339571-A (GB)
Abstract: 339,571. Weber, E. Feb 3, 1930, [Convention date]. No Patent granted (Sealing fee not paid). Calendars. - A perpetual calendar comprises three concentrically mounted discs, the lower disc a Figs. 1 and 2, has marked on its circumference the date figures and century numbers, the central disc b has marked thereon two concentric series e, e<1>, of yea.r numbers, and the upper disc c has marked on its circumference the day names and month names arranged as shown. The central disc b is provided with an aperture d to expose a century number on the lower disc while the upper disc c is provided with sets of apertures h, h<1>, corresponding to the month for exhihiting selected sets of year numbers on the central disc. The year numbers are separated by gaps g, g', for taking into account leap years the inner series of numbers e being utilized for the months of January and February in leap years.
Patent GB-837680-A (GB)
Title: Triaryl phosphate mixtures
IPC: C07F9/12
Filed: 1956-11-07
Abstract: Hydraulic systems contain as the operative fluid a triaryl phosphate mixture obtainable by reacting an ester-forming derivative of phosphoric acid, e.g. POCl3, P2O5 or PCl5, with a mixture containing by weight 11 to 17% of meta- and para-cresols, 65 to 80% of xylenols and 8 to 12% of higher alkyl monohydric phenols in which the alkyl group or groups of each phenol contain a total of 3 to 6 carbon atoms, e.g. propyl phenol, methyl ether phenol and butyl phenol (see Group IV (b)).  A small proportion (up to 3% by weight, but preferably not more than 1% by weight) of ortho-cresol may also be present in the mixture of phenols to be reacted.  The triaryl phosphate mixtures are also useful as lubricants.ALSO:A triaryl phosphate mixture is obtained by reacting an ester-forming derivative of phosphoric acid, e.g. POCl3, P2O5 or PCl5 with a mixture containing by weight 11 to 17% (preferably 14%) of meta- and para-cresols, 65 to 80% (preferably 75%) of xylenols, and 8 to 12% (preferably 10%) of higher alkyl monohydric phenols, in which the alkyl group or groups of each phenol contain a total of 3 to 6 carbon atoms, e.g. propyl phenol, methyl ethyl phenol and butyl phenol.  The invention also includes the triaryl phosphate mixtures obtainable by such process.  A small proportion, up to 3% by weight, but preferably not more than 1% by weight, of ortho-cresol may also be present.  The reaction may be effected in the presence of a metal halide catalyst, e.g. aluminium chloride or magnesium chloride and a 5 to 8% by weight excess of phenolic hydroxyl is generally employed.  The triaryl phosphate mixtures are suitable for use as lubricants and hydraulic fluids (see Group III) and as plasticizers for various thermoplastic materials (see Group IV (a)).ALSO:A thermoplastic material, e.g. polyvinyl chloride or a cellulosic ester of a saturated aliphatic monocarboxylic acid containing 2 to 4 carbon atoms or a cellulose ether, e.g. ethyl cellulose, is plasticized with a triaryl phosphate mixture obtainable by reacting an ester-forming derivative of phosphoric acid, e.g. POCl3, P2O5 or PCl5, with a mixture containing by weight 11 to 17% of meta- and para-cresols, 65 to 80% of xylenols, and 8 to 12% of higher alkyl monohydric phenols in which the alkyl group or groups of each phenol contain a total of 3 to 6 carbon atoms, e.g. propyl phenol, methyl ethyl phenol, and butyl phenol (see Group IV (b)).  A small proportion-up to 3% by weight, but preferably not greater than 1% by weight-of ortho cresol may also be present. In an example 40 parts of a triaryl phosphate obtained by reacting a phenolic mixture containing by weight 14% of meta- and para-cresols, 75% of xylenols and 10% of the higher alkyl phenols with POCl3 are blended with 60 parts of polyvinyl chloride and 1.0 part of lead stearate added.
Patent GB-618718-A (GB)
Title: Improvements in and relating to coal cutter picks, and the pick-holders and pick-boxes therefor
IPC: E21C35/19
Filed: 1946-11-18
Abstract: 618,718. Coal-cutting machines. CURRIE, T. R., SCOTT, A., and BAXTER, G. Nov. 18, 1946, No. 34064. [Class 68 (i)] In a pick mounting for a coal-cutting machine, the pick 1 has a cutting-point at each end and a transverse recess 1b centrally of its back, the pick fitting in a recess 2c in the head 2a of a holder provided with a shank 2b which enters a recess in the pick block 3, and the recess 2c having a transverse rib 2e adapted to engage the recess in the pick ; a forwardly projecting boss 2f on the holder has an aperture 2g in which is inserted a wedge 2h engaging the face of the pick, the lower end of the wedge bearing against the pick block. The pick holder may be secured by a transverse pin 4 engaging a groove in the shank 2b, the pin having a cut-away part 4a, whereby rotation of the pin frees the shank; other securing means may be used, or the shank may be tapered and engage a tapered hole in the pick box.
Patent GB-1389878-A (GB)
Title: Material holder
IPC: G01K17/00
Filed: 1972-07-21
Abstract: 1389878 Calorimeters PERKIN-ELMER CORP 21 July 1972 [20 Aug 1971] 34314/72 Heading G 1D A device for holding material under investigation in a calorimeter comprises a substantially cylindrical housing 12 enclosing heating and temperature sensing elements and parts for positioning these elements in the housing; the housing, elements and parts all being formed from materials which exhibit substantially the same thermal coefficients of expansion. As shown, the cylindrical housing 12 which may be of gold, palladium platinum or an alloy thereof has a bottom comprising a heater element (86) and a sensing element (72) each sandwiched between pads (88,90) and (66, 74) which are separated by a disc (92) and compressed by end discs (64, 94), the discs all being identical and being both electrically and thermally conductive whereas the pads, which may be woven, are only thermally conductive. The pads are provided with tabs accommodated in crenalations at the base of the housing 12 and the tabs support wires 20, 22, and 24, 26 leading from the sensing and heating elements to connectors 28, 30, 32, 34 in a base support 14 on which the housing 12 is supported by a post 16.
Patent GB-1178695-A (GB)
Title: Improvements in or relating to Tone-Calling Telephone Systems and Telephone Instruments therefor
Inventor: CROOKS STEPHEN JOHN
IPC: H04M1/10
Filed: 1966-04-26
Abstract: 1,178,695. Intercommunication systems; sub-sets. GENERAL ELECTRIC & ENGLISH ELECTRIC COMPANIES Ltd. 2 June, 1967 [26 April, 1966], No. 34454/67. Divided out of 1,178,693. Headings H4J and H4K. The description is identical to that of Specification 1,178,693, but the claims relate to the provision of a reed relay hook switch in the hand set operated by a magnet in the subset body to reduce the level of a calling tone when the hand set is removed from the rest position on the sub-set body.
Patent GB-1113865-A (GB)
Title: Improvements in or relating to ammunition for toy guns
IPC: F42B39/08
Filed: 1965-08-12
Abstract: 1,113,865. Percussion caps for toys. G. FERRI and J. MARINAI. 12 Aug., 1965 [21 Aug., 1964], No. 34484/65. Heading F3A. Percussion caps 1 for use in toy guns are spaced at regular intervals along a strip having stop means for engagement by the gun, so that the strip may be advanced step-by-step to fire the caps. Each cap comprises a cup-shaped member housing an explosive charge, the cups being connected together by stalks 2 integral therewith and made of synthetic resins or cardboard. The stalks 2 project laterally of the centre line of the cups and are so inclined that they form rack teeth 2a having a stop surface 2b which co-operates with advancing means of a gun. For ease in manufacture the strip may be provided with zones of weakness at which separation into shorter strips may take place (Fig. 6). Means for connecting strips endto-end is provided in Fig. 2, and consists of studs 6 at one end of a strip co -operating with matching holes 9 at the other end. An extension 7 at one end of the strip guides the last cap of a strip in the gun magazine. The strips are used in a gun which has shear means to separate each cap as it is advanced along a line T. The stops may be on the cap body.
Patent GB-1083483-A (GB)
Title: Subjective color system
IPC: H04N11/00
Filed: 1964-08-24
Abstract: 1,083,483. Colour television. BATTELLE DEVELOPMENT CORPORATION. Aug. 24, 1964 [Sept. 10, 1963], No. 34501/64. Heading H4F. [Also in Division G2] Colour images are produced by a black-andwhite television system by causing the production of light in a predetermined time sequence of light (white) and no light (black), whereby a subjective colour effect is produced in accordance with the Fechuer-Benham phenomenon. The original scene is viewed by the camera through a rotating filter disc, Fig. 4, comprised of an opaque sector 28 and cyan, magenta and yellow filter sectors 29, 30, 31. The filter sectors cause the complementary colours, i.e. respectively red, green and blue, to appear as black in the image reproduced at the receiver against a white or light background due to the other colours. The sequence of images is interrupted by a period of black (i.e. no light) when the sector 28 obscures the scene. The filter disc rotates in the direction of arrow 32. Thus in a sequence of six intervals, red elements in the scene result in reproduced light (black B and white W) in the sequence B,B B,W,W,B, green elements in the sequence B, B, B, W, B, W, and blue elements in the sequence B, B, B, B, W, W. In accordance with the Fechuer-Benham phenomenon these sequences give rise to the subjective colour impressions of red, green and blue. The filter disc may be rotated at a rate of 2 to 100 revolutions per second. It is preferable however to synchronize the rotation rate with the television scanning rate such that each of the six intervals referred to above corresponds to a television frame interval, i.e. two interlaced fields. A filter drum may be used in place of a disc, Fig. 8 (not shown). Flicker in the reproduced colours may be reduced by subdividing the filter into a series of concentric annular areas in which the opaque sectors are displaced by 90 degrees in successive areas, Fig. 6 (not shown). A half-tone screen, Fig. 5 (not shown), formed of a pattern of small transparent areas in a translucent ground may be included in the camera optical system for causing large uniform areas of one colour to be broken up into smaller areas surrounded by white with the object of enhancing the reproduction of subjective colour. The invention may be applied to a two-colour system based on red-orange and blue-green filters. A colour film may be adapted to reproduce colour in accordance with the invention, when transmitted by a black-andwhite television system, by printing the film 63, Fig. 11, on to a black-and-white film 65 through a colour filter 64 arranged as shown. As an alternative to the use of a filter disc (or drum) at the transmitter, the scene may be viewed by a three-tube camera 74, 79, 84 Fig. 12, operating with cyan, magenta and yellow filters 71, 76, 81, and the corresponding sequence of signals established by means of a distributer switch 86.
Patent GB-332167-A (GB)
Title: Welded spigot and socket safety joint
IPC: F16L13/02
Filed: 1929-11-12
Abstract: 332,167. Strenger, M. Dec. 4, 1928, [Convention date]. Joints formed by welding.-In a spigot- and-socket joint of the. kind in which the end of the socket is bent over an enlargement 3 of the spigot and is welded to the spigot at 4, slots 1 are provided in the base of the socket, and are filled by welding.
Patent GB-1101203-A (GB)
Title: Cementing compositions
Inventor: BRYANT PATRICK SAMUEL
IPC: C04B24/26
Filed: 1965-08-12
Abstract: An aqueous dispersion of a copolymer, for use in cement compositions, comprises at least 70% by wt. of units derived from vinylidene chloride and 4 to 30% of units derived from a monomeric component (i) comprising at least one monoethylenically unsaturated compound that is soluble in water to the extent of at least 0.5 gm. per 100 ml. of water at 50 DEG  C. and contains no non-ionic surface-active agent and from 0 to 0.1% by wt., based on the weight of the copolymer, of an ionic surface-active agent. The monomeric component (i) may be acrylonitrile or a C1-C6 alkyl acrylate and preferably forms 4 to 27% by wt. of the copolymer.  The copolymer may also contain 0.5 to 5% by wt. of units derived from a mono-ethylenically unsaturated carboxylic acid or anhydride or from a partial ester of a monoethylenically unsaturated polycarboxylic acid, e.g. acrylic or methacrylic acids. The faster polymerizing monomer, e.g. acrylonitrile, may be added continuously or intermittently during polymerization. The dispersion may be formed by copolymerizing vinylidene chloride with monomeric component (i) in an aqueous medium in the presence of (a) a water-soluble salt of a peroxyacid, and (b) a water-soluble sulphur containing acid having reducing properties or alkali metal salt thereof, and either in the absence of any surface-active agent or with at most 0.1% by wt. of an ionic surface-active agent.  (a) may be alkali metal and ammonium peracetates, percarbonates and persulphates, used in amount 0.2 to 1% by wt. of the monomer \sHmixture, (b) may be sulphurous acid, sodium and potassium sulphites, hydrosulphites, thiosulphites, formaldehyde sulphoxylates and metabisulphites used in amount 0.1 to 1% by wt. of the monomer mixture.ALSO:A cement composition comprises an hydraulic cement optionally aggregates, and 5-40% by weight based on the weight of the cement, of a copolymer containing at least 70% by weight of units derived from vinylidene chloride and 4-30% by weight of units derived from a monomeric component (i) comprising at least one monoethylenically unsaturated compound that is soluble in water to the extent of at least 0.5 gm. per 100 ml. of water at 50 DEG  C., said copolymer being in the form of an aqueous dispersion containing no non-ionic surface-active agent and from 0 to 0.1% by weight, based on the weight of the copolymer, of an ionic surface-active agent. The monomeric component (i) may be acrylonitrile or an alkyl acrylate in which the alkyl group contains up to 6 carbon atoms and preferably forms 4 to 27% by weight of the copolymer.  The copolymer may also contain 0.5 to 5% by weight of units derived from a monoethylenically unsaturated carboxylic acid or anhydride or from a partial ester of a monoethylenically unsaturated polycarboxylic acid, e.g. acrylic or methacrylic acids.  The composition preferably contains no ionic surface-active agent.  The cement may be Portland or plaster of Paris and the aggregate may be sand, lime or gravel.
Patent GB-1181059-A (GB)
Title: Improvements in or relating to Fuel Supply Systems for Engines
Inventor: CARMICHAEL THOMAS
IPC: F02B1/00
Filed: 1967-09-01
Abstract: 1,181,059. Vehicle fuel systems. T. CARMICHAEL, and D. U. HOWARD. 1 Sept., 1967 [7 Sept., 1966], No. 34560/69. Divided out of 1,178,598. Heading B7H. A fuel supply system for a vehicle engine comprises a main fuel tank, an auxiliary fuel tank 18 which receives fuel from the main tank, as by a pipe 16, a fuel pump arranged to pump fuel from a given level in the tank 18, as through a pipe 26, and a second selectively operable fuel pump 76 arranged to pump fuel from the tank 18 at a level below the given level, the outputs of both pumps being connected to a common fuel supply line for the engine, the output of the second pump 76 being connected to the supply line downstream of the first pump. The second pump is preferably actuated by an eloctrie switch 74 which is also connected to a warning signal lamp 80. ,
Patent GB-1140841-A (GB)
Title: Improved cutting tool
Inventor: MOORE ARTHUR IVAN WALTER
IPC: B23C5/06
Filed: 1965-01-24
Abstract: 1,140,841. Cutting tools. PRODUCTION ENG. RESEARCH ASSOCIATION OF GREAT BRITAIN. 21 Jan., 1966 [24 Jan., 1965; 1 Nov., 1965], Nos. 34571/64 and 46098/65. Headings B3B, B3K and B3L. In a method of machining such as turning, milling and planing in which a slice-like cutter bit 12 secured to a holder 11 is fed into a workpiece transversely to the cutting direction, the bit has a cutting edge formed at the juncture of its face with its side wall and is orientated in relation to the workpiece so that its face is the clearance face 15 and the side wall 14 forms the rake face, the angle of obliquity of the cutting edge to the cutting direction being the maximum which achieves effective cutting. The angle of obliquity is defined as the angle between a tangent to the cutting edge and the direction of cutting. In addition to the orientation of the cutting bit as set out above, the bit may also be inclined to the axis of the holder. The bit is secured to the holder by means of a screw and a split sleeve (see Specification 1,140,843) and may be invertable and indexable so as to present a new cutting edge to a workpiece when required. The various forms of cutter bit (see Specifications 1,140,842 and 1,140,844) may be circular or polygonal and the cutting edges may be formed by a plurality of successive arcuate portions. Also a narrow land may be provided along part or all of the cutting edge depending on the shape of the bit and the cutting conditions required.
Patent GB-1190045-A (GB)
Title: Induction Liquid Flow Meters
Inventor: WADA ICHIRO
IPC: G01F1/58
Filed: 1967-07-27
Abstract: 1,190,045. Induction flow-meters. TOKYO SHIBAURA ELECTRIC CO. Ltd. July 27, 1967 [July 28, 1966], No. 34591/67. Heading G1N. In an induction flow meter, to compensate for the effects of non-linearity of the applied magnetic field and fluid-flow, two or more systems of coils and electrodes are arranged round the flow tube and energized and metered in succession, the outputs being combined to produce the required fluid-flow rate signal. In one embodiment, Figs. 1, 2 (former not shown) the pairs of coils 4a, 4b and electrodes 2a, 2b are orientated at right angles to each other round the tube. The coils are connected by diodes 11, 12 respectively to an A. C. supply 10 so that one pair of coils is energized during the positive half cycle and the other during the negative half cycle of the A. C. The amplified outputs from the electrodes are combined in transformer 14 to produce an A. C. signal, Fig. 3E (not shown), or a D. C. signal, Fig. 3F (not shown), by phasing inverting one signal. In a second embodiment, Fig. 4 (not shown), six equally spaced pairs of coils and electrodes are provided to be energized in succession. As a modification, combinations of the coils may be energized to produce three parallel magnetic fluxes, Figs. 6A-6F (not shown), the resultant induced current being detected by the pairs of electrodes perpendicular to the fluxes.
Patent GB-1087679-A (GB)
Title: Improved control units for electrical appliances
Inventor: MCKAY HUGH KEITH
IPC: G05D23/275
Filed: 1966-08-02
Abstract: 1,087,679. Automatic temperature control. BRITISH PETROLEUM CO. Ltd. Aug. 2, 1966, No.34608/66. Heading G3R. An automatic control system for an electrical appliance such as an electrically heated bath used in research work comprises a heating element 11 controlled by a contact 10 of a relay 9, the temperature of the bath being sensed by a device 5, for example, a contact making thermometer, the device 5 being effective to cause illumination of a lamp 4 which co-operates with a photo-resistor 7 to control the relay 9 and contact 10 in an ON-OFF manner. In a second embodiment a manually controlled boost heater may be added to the system whereby to provide rapid initial heating of the bath, the subsequent maintenance of the bath temperature being provided by the heater 11. The system may be used to control fluid level, pressure or flow using electrically operated pumps or solenoids and also systems for controlling air temperature.
Patent GB-605413-A (GB)
Title: Cellulose ether compositions
IPC: C08L1/28
Filed: 1945-12-21
Abstract: Cellulose ether moulding compositions comprising a cellulose ether, e.g. ethyl cellulose and a plasticiser are stabilised against the action of heat and light by incorporating therewith a polybasic aliphatic acid or an ester thereof containing one or more free carboxyl groups in amount 0.01-5 per cent of the weight of the ether. Specified polybasic acids are citric, tartaric, oxalic, succinic, malic, itaconic, aconitic, maleic, adipic and sebacic acids, and specified esters are mono- and di-ethyl citrates.  Specified plasticisers are dibutyl phthalate, tricresyl and triphenyl phosphate and ethylene glycol mono-butyl-ether mono-stearate.  Specification 369,294, [Group V], is referred to.
Patent GB-415928-A (GB)
Title: Improvements in or relating to the production of warp knitted fabrics on a warp machine having one row of needles
IPC: D04B21/00
Filed: 1933-12-11
Abstract: 415,928. Knitted fabrics. SCHONFELD, P., 2b, Prinzenstrasse, Chemnitz, Germany. Dec. 11, 1933, No. 34785. Convention date, Feb. 4. [Class 74 (ii).] A ribbed warp fabric, produced by two lapping machines on a machine having one row of needles as described in Specification 389,995, has a rubber thread 8 incorporated therein at one or more points to enhance the elasticity of the ribs. Each rubber thread is supplied to the needles, without lateral racking, between the groups of threads 1 of the upper ground fabric forming machine and the groups of threads 2 of the lower rib fabric forming machine.
Patent GB-1478281-A (GB)
Title: 11,12-secoprostaglandins
IPC: C07C59/215
Filed: 1975-08-21
Abstract: Novel compounds of the formula (II) <IMAGE> are prepared by reacting the ester of a corresponding 12,13-epoxy compound with a compound of the formula R<6>OH or R<6>SH where -O-R<6> or -S-R<6> is equal to R<3>, and hydrolysing the resulting ester to give an acid of the formula (II). The meaning of the symbols is evident from claim 1. The secoprostaglandins are suitable in veterinary medicine as fertility regulators for oestrus synchronisation and for treating infertility, and in human medicine as postcoital contraceptives.