baber/WOPTO huggingface dataset:
Patent GB-1245928-A (GB)
Title: Improvements in and relating to dental materials
Inventor: DENEREAZ ANDRE
IPC: A61K6/06
Filed: 1967-10-10
Abstract: 1,245,928. Dental cements. AMALGAMATED DENTAL CO. Ltd. 27 Sept., 1968 [10 Oct., 1967], No. 46301/67. Heading C3N. A dental silicate cement of the kind comprising a powder component part comprising a metal silicate and a liquid component part incorporating an acid reactive with the powder component part to cause liberation of silicic acid is characterized by containing as an alcoholic compound an organic mono- or polyhydric alcohol, a mono-ether of a polyhydric alcohol, or a mono-phosphoric ester of a polyhydric alcohol, said mono- or poly-hydric alcohol being derived from aliphatic, aromatic or cyclic hydrocarbons or heterocyclic compounds, which alcoholic compound imparts improved resistance to crazing without the use of water-repellent substances. The maximum amount of alcoholic compound in either one of the component parts of the cement will be generally 20% by weight. Preferably the alcoholic compound is incorporated in said powder component part to a concentration of from 0À07-7À0% by weight of said component part, and in said liquid component part to a concentration of from 0À14-14À0% by weight of said liquid component part. Specified alcoholic compounds are methyl alcohol, ethyl alcohol, propyl alcohol, iso-octyl alcohol; ethylene glycol, propane 1,2-diol, butane 1,3-diol, butane 1,4-diol, 1,4-dihydroxy but-2-ene, 1-4- dihydroxy but-2-yne, pentane 1,5-diol, hexane 1,6-diol; triethylene glycol, dipropylene glycol, "polyethylene glycol 200", "polyethylene glycol 600"; ethylene glycol monomethyl ether, ethylene glycol monobutyl ether, 1,2-propylene glycol-monobutyl ether, triethylene glycol monoethyl ether; diglycerol, glycerol, pentaerythritol, sorbitol, 1,2,4-butanetriol, 1,2,6-hexanetriol; benzyl alcohol, cinnamyl alcohol, 2- phenyl ethanol, 3-phenyl propanol, cyclohexane-1,4 diol, 2,2,4,4-tetramethyl 1,3-cyclobutanediol; and furfuryl alcohol, tetrahydro furfuryl alcohol. In one embodiment the liquid component part comprises a preformed reaction product of phosphoric acid and as alcoholic compound a polyhydric alcohol. Preferably the concentration of the alcoholic compound is from 0À05-5À0% by weight of said dental silicate cement.
Patent GB-923850-A (GB)
Title: Improvements in and relating to polymers
IPC: C08F220/06
Filed: 1961-12-28
Abstract: Latices containing 30-55% by weight of polymeric solids, and comprising the product of the polymerization below 50 DEG C. in the presence of a redox free radical polymerization initiator and in aqueous emulsion, of vinyl acetate admixed with 0,5 to 3,0% by weight of the monomers of acrylic acid, the polymer particles having a diameter smaller than the wave length of visible light, may be prepared by preparing a mixture of the monomers, optionally together with 0,01 to 0,1% by weight of the polymerization system of a cross-linking agent, and an oil soluble oxygen yielding polymerization initiator, adding said monomer mixture to a water solution of the reducing component of the redox polymerization initiator, and agitating the mixture until polymerization is complete.  The polymerization systems may also comprise emulsifiers, e.g. sodium lauryl sulphate, sodium t-octylphenyl sulphonate, sodium dioctyl sulphosuccinate, sodium dihexyl sulphosuccinate, ethylene oxide condensates of long chain amines and acids, stearamidopropyl dimethyl b -hydroxyethyl ammonium phosphate, octylphenoxy polyethoxyethanols, and block copolymers of ethylene oxide and propylene oxide.  The redox initiator system may comprise t-butyl hydroperoxide, cumene hydroperoxide, t-butyl perbenzoate, ammonium and alkali metal persulphates, and bisulphites, hydrosulphites, thiosulphates, ethyl sulphite and sodium formaldehyde sulphoxylate. The cross-linking agent may be diallyl fumarate, vinyl crotonate or the acrylate of 5-hydroxymethyl-bicyclo (2, 2, 1)-hept-2-ene. The latices may be mixed with a pigment slip and used for coating paper, or may be used in latex paints, in textile printing and ceramic coatings.
Patent GB-1426255-A (GB)
Title: Device for cutting sheets of material from a web supply roll and feeding said sheets
IPC: B65H23/18
Filed: 1973-10-04
Abstract: 1426255 Feeding and cutting webs FUJI XEROX CO Ltd 4 Oct 1973 [5 Oct 1972] 46509/73 Heading B8R A device for cutting sheets from a web and feeding "send" sheets comprises a pair of web advancing rollers 13, Fig. 1, and a pair of web or sheet delivering rollers 14 disposed on opposite sides of a web cutter 30 and means for driving the advancing rollers 13 intermittently between consecutive cutting operations of said cutter, the length of the sheet cut from the web and subsequently delivered by the web or sheet delivering rollers 14 being determined by the advancing step of the rollers 13. The delivering rollers 14 are driven at a slower rate than the rollers 13 to form an arched portion of the web between the rollers 13, 14 to permit a cutting operation of the web without jerks. The device is further provided with a pair of web feed rollers 12 forming a loop storage a between rollers 12, 13 under control of a sensor 15. In operation the advancing step of rollers 13 is controlled by a disc 19, Fig. 2, provided with counting holes 19a which when sensed feed signals to a counter, the counter acting on a solenoid 22 which arrests a clutch 16 by means of a lever 21 which also rocks a fulcrum lever 23. The fulcrum lever which controls the cutter 30, lowers a rod 27, which is raised by the lever 21 during web feeding, to enable a lever 28 to pivot a bail 26, Fig. 4, out of contact with a clutch 25 controlling the cutter. The clutch causes a crank 32 to oscillate a connecting rod 33 coupled to a bracket 34 which in turn oscillates a knife blade 30a about a shaft 30b to sever the web when the blade 30a, contacts a stationary blade 30c.
Patent GB-1239784-A (GB)
Title: Improvements in electrical connector and apparatus and method for making same
IPC: H01R4/22
Filed: 1968-10-01
Abstract: 1,239,784. Sleeve couplings. ANACONDA WIRE & CABLE CO. 1 Oct., 1968 [6 March, 1968], No. 46573/68. Heading H2E. In a sleeve connector of the type containing dielectric compound and wherein wires 11, 12 are crimped, comprising a hard metal conductive sleeve 19 having inwardly pointing teeth 21 which pierce the insulation 17 of the wires and make contact with the cores, surrounded by a deformable conductive sleeve 22 and an insulating plastics jacket 24, the jacket 24 is formed with tubular extensions 31, 32 at both ends, one of which 31 is sealed at 33 and the other 32 is formed with a radial constriction 37 so that, on crimping, the flow of the dielectric compound out of the open end is hindered by the constriction, ensuring a good moisture seal. The sealing and formation of the constriction may be accomplished on a device comprising a block 38 of similar cross-section to that of the sleeve 22, surmounted by a pin 39 of width similar to that of the spacing between opposite teeth in the sleeve 19. The conductive sleeves 22, 19, made of brass and bronze respectively, are placed over the pin 39 so that there is a small gap 41 between the sleeve 22 and the block 38 and the whole is surrounded by a length of heat-shrinkable plastics tubing 32 e.g. PVC. A pellet of heatdeformable material 36 is placed on top of the sleeve and the jacket 32 is heat shrunk so that it firmly grips the sleeve 22 and the pellet 36 thus sealing one end of the jacket and forming a radial constriction in the gap 41. The connector is then filled with dielectric compound.
Patent GB-1272898-A (GB)
Title: Improvements in or relating to bags
IPC: B65D33/10
Filed: 1970-10-01
Abstract: 1,272,898. Carrier bags. P & B AGENCIES (PTY) Ltd. Oct.1, 1970 [Oct.8, 1969], No.46726/70. Heading A4B. Handles 12 attached to sheet material 28 before it is folded and severed into bags are folded back upon themselves and temporarily secured into a position 16 so that the sheet 28 may be severed along a line 18 without severing the handles. The handles may be retained in the i.e. folded position by weakly bonding a strip of material which may have perforation lines over them, by weakly gluing the legs of the handles together with spots of glue or by providing the handles with strips of malleable material, e.g. metal, at the fold lines.
Patent GB-1409606-A (GB)
Title: Preparation of non-dusting and non-caking granular fertilisers
Inventor: WEINROTTER FERDINAND PROF DR
IPC: C05G3/20
Filed: 1972-10-11
Abstract: 1409606 Non-dusting, non-caking fertilizers CHEMIE LINZ AG 11 Oct 1972 [25 Oct 1971] 46994/72 Headings C1B and C1A A process for the preparation of a non-dusting and non-caking granular fertilizer containing at least 10% by weight of ammonium nitrate, comprises treating the surface of the granules, so as to form a protective coating thereon, with a substituted s-triazine derivative of the general Formula I: in which R is an optionally branched alkyl group or alkenyl group containing up to 6 carbon atoms and R<SP>1</SP> is an optionally branched alkyl group containing up to 6 carbon atoms and X is a hydrogen atom, an amino group, an alkyl group containing up to four carbon atoms, a phenyl group or a group of the formula wherein R and R<SP>1</SP> are as defined above. The amount of triazine applied preferably is from 0À01 to 0À4% by weight of the granules. The treatment may be preceded by an application of oil or fused paraffin. In examples the fertilizer granules used are calcium ammonium nitrate and a conventional NPK fertilizer. Typical triazines are the N,N<SP>1</SP>-bis-isobutylol melamine- (methyl, ethyl, propyl, isopropyl, butyl, isobutyl, isoamyl and allyl)-ethers.
Patent GB-1017031-A (GB)
Title: Improvements in or relating to electric switching assemblies
Inventor: WARD PETER WILLIAM
IPC: H04Q3/00
Filed: 1963-11-29
Abstract: 1,017,031. Electric selectors. GENERAL ELECTRIC CO. Ltd. Nov. 30, 1964 [Nov. 29, 1963], No. 47248/63. Heading H1L. In a cross-point switching matrix 1, each of the inlets I1 . . . I15 is connectible to four of the outlets O1 . . . 015, and conversely each of the outlets is connectible to four of the inlets. When two such matrices 1, 1<SP>1</SP> are connected in cascade, the outlets of 1 being the inlets of 1<SP>1</SP>, each of the inlets I1 . . . I15 of 1 may be selectively connected to any one of the outlets O<SP>1</SP>1 ... 15 of 1<SP>1</SP>. More generally, each matrix may have K<SP>2</SP>-1 inlets and outlets, with each inlet connectible to K outlets, K being at least 3. The connections at the cross-points may be made by reed relays which may be constructed as a replaceable unit with a plug connector.
Patent GB-1075015-A (GB)
Title: Improvements in or relating to pliers
IPC: B26B17/02
Filed: 1964-11-20
Abstract: 1,075,015. Pliers. C. KUHBIER. Nov. 20, 1964, No. 47388/64. Heading B4W. In pliers comprising a first jaw 12 pivoted at a first pivot 13 to a second jaw 11 having an integral handle 10, the jaw 12 being operatively connected by a second pivot 15 to the other handle 16 of the pliers and the other handle 16 being pivoted at a third pivot 18 to the lever arm 14 of the first jaw 12, a slot is associated with one of the pivots 15, 18 and the arrangement is such that the second pivot is positioned nearer the second jaw than the third pivot and the first pivot is positioned at the end of the lever arm nearest the second jaw. The articulated end of the handle 16 is located between the handle 10 and the short lever arm 14 of the jaw 12; the pivot pin 18 riveted in the handle 16 engaging a slot 19 formed in the jaw 12 and the pin 15 passing through apertures in the handles 10, 16. In a modification, Figs. 4-6 (not shown) the handle (16) has off-set second and third pivots (15, 18) on opposite sides and which may be integral therewith, the second pivot (15) engaging in a slot in the handle (10) which carries the second jaw and the third pivot (18) engaging in a hole in the first jaw (12).
Patent GB-1152128-A (GB)
Title: Process and Intermediates for the Manufacture of 19-Hydroxycholestanes
Inventor: NYSTED LEONARD NORMAN
IPC: C07J9/00
Filed: 1967-10-19
Abstract: 1,152,128. 6#,19 - Oxido - cholestanes and 19-hydroxy-cholestanes. G. D. SEARLE & CO. 19 Oct., 1967, No. 47571/67. Addition to 1,000,890. Heading C2U. Novel steroids of the formula (wherein Z is carbonyl, #-hydroxymethylene or #-alkanoyloxymethylene, the alkanoyl radical containing 1 to 7 carbon atoms; and R is H or C 2 H 5 ) are prepared by contacting the corresponding 3# - alkanoyloxy - 5α - acetoxy - 6#- hydroxy steroids with a heavy metal acetate oxidizing agent to give the required products wherein Z is #-alkanoyloxymethylene, hydrolysing these to the required 3#-ols, and oxidizing these to the required 3-ones; and the 3-ones are converted to the valuable 19-hydroxycholest-4- en-3-one and 24-ethyl-19-hydroxycholest-4-en- 3-one by contacting with zinc in the presence of a Lewis acid. The 3# - alkanoyloxy - 5α - acetoxy - 6# - hydroxy steroid starting materials are prepared by epoxidizing the corresponding 3#-alkanoyloxy- #<SP>5</SP> - 6 - unsubstituted steroids to give the 5,6- epoxides, cleaving these with an inorganic acid to give the corresponding 3#,5α,6#-triol 3-alkanoates, acetylating these to give the triesters, selectively hydrolysing these to the 3#,5α,6#- triol 5-acetates and esterifying these.
Patent GB-1160269-A (GB)
Title: Improvements in or relating to the Manufacture of Polymeric Materials
Inventor: MARKLOW RAYMOND JOSEPH
IPC: C08G18/48
Filed: 1965-11-12
Abstract: 1,160,269. Alkylene oxide polymers; polyurethanes. IMPERIAL CHEMICAL INDUSTRIES Ltd. 28 Oct., 1966 [12 Nov., 1965], No. 48130/65. Addition to 983,916. Headings C3C and C3R. Alkylene oxide polymers are prepared by a modification of the process claimed in U.K. Specification 983,916, characterized in that an alkylene oxide is reacted with a polyhydric alcohol having a melting-point above 100‹ C. or an amine having at least three active hydrogen atoms and no hydroxyl groups in the molecule or a mixture thereof and in that there is present at the start of the reaction between 15 and 50%, based on the total weight of reagents used, of a reaction product of a dihydric alcohol and at least 1 mol. of an alkylene oxide or a reaction product of a trihydric alcohol and from 1 to 4 mols. of an alkylene oxide, said dihydric or trihydric alcohol having a melting- point below 100‹ C. Specified polyhydric alcohols are trimethylolethane, pentaerythritol, methyl glucoside, sorbitol, mannitol, dulcitol, dipentaerythritol, sucrose and glucamine, glucosamine and glucosaminol and their N-alkyl derivatives. Suitable amines include ethylene diamine, diethylene triamine, triethylene tetramine, hexamethylene diamine, 1,2-diaminocyclohexane, phenylene diamines, mixtures of amines obtained by reduction of the dinitration products of toluene, 4,4<SP>1</SP>-diaminodiphenylmethane and reaction products of aniline and formaldehyde. Alkylene oxides which may be used are, for example, ethylene oxide, propylene oxide and butylene oxides and mixtures thereof. Specified dihydric alcohols on which the pre-formed reaction product is based are ethylene glycol, 1,2-propylene glycol, trimethylene glycol, diethylene glycol, butylene glycols and N-methyldiethanolamine, and specified trihydric alcohols are glycerol, trimethylolpropane and other hexanetriols, triethanolamine and tri-isopropanolamine. The resulting alkylene oxide polymers may be reacted with an organic polyisocyanate, e.g. a tolylene diisocyanate or a diphenylmethanediisocyanate, to give cellular or non-cellular polyurethanes in the presence of, as necessary, gas-generating agents, catalysts, surface-active agents and flame-proofing agents.
Patent GB-1127785-A (GB)
Title: Improvements in or relating to the crimping of threads or yarns
IPC: D02G1/14
Filed: 1965-11-12
Abstract: 1,127,785. Crimping yarns. ONDERZOEKINGSINSTITUUT RESEARCH. 12 Nov.. 1965 [26 Nov., 1964], No. 48203/65. Headings D1F and D1W. Thermoplastic, monofilament yarn is crimped by one or more passages under tension between two (or a series of) hard-surfaced, superposed, separable rollers, one in the form of a toothed wheel and the other smooth-faced and heated to a temperature exceeding the softening temperature of the yarn, so that the yarn is locally flattened: the flat spots thereby induced at intervals along the length of the yarn are heatset on one side only. The length of yarn between every two successive passages thereof between the rollers may be periodicaily changed.
Patent GB-1331086-A (GB)
Title: Method of and apparatus for the multiplication of the effective
IPC: C25D5/00
Filed: 1970-10-12
Abstract: 1331086 Electro-plating CENTER OF SCIENTIFIC & APPLIED RESEARCH Ltd 12 Oct 1970 [13 Oct 1969] 48357/70 Heading C7B A porous metallic coating is formed on a metallic substrate to multiply its effective surface area by electroplating in which plating current is passed successively to small areas of the substrate at densities of at least 80A/cm<SP>2</SP> of the exposed substrate surface. The current may be passed as pulses e.g. at a frequency of 3 C/D and a pulse duration of 40ms for a C.D. of 100A/cm<SP>2</SP>. The plating bath 1 may be divided into two compartments by an insulating partition e.g. diaphragm 2 provided with an opening or slit 5 to expose successively only a small part of the surface of the moving substrate e.g. band 4 on one side of the partition to the plating current from the anode 3 on the other. Preferably the slit extends across the width of the band, being of reduced width at its ends adjacent the band edges. Wire may be plated using pulsed current by passing it through a small diameter glass V-tube inside another V-tube provided with an annular opening.
Patent GB-1431596-A (GB)
Title: Support bracket for mounting on a flanged member
IPC: E21D11/24
Filed: 1973-10-17
Abstract: 1431596 Connecting pieces for I-beams GKN MACHINERY Ltd 3 May 1974 [17 Oct 1973] 48369/73 Heading F2M [Also in Divisions E1-E2] A mine roof support bracket for releasably attaching a flanged girder 20 to a further girder 22 consists of two relatively adjustable jawcarrying parts 10, 11 which are interconnected by a wedge 21 adapted to co-operate with one of two slots such as 14 in the member 11 whereby different required spacings of the jaws can be accommodated. The member 22 rests on a bar 23 which is received in opposed slots 24 in the member 10; the bar 23 having spaced shoulders 25.
Patent GB-1179507-A (GB)
Title: Improvements in or relating to Automatic Telecommunication Exchanges
Inventor: EKBERGH EVERT OSKAR
IPC: H04Q3/00
Filed: 1967-10-25
Abstract: 1,179,507. Automatic exchange systems. INTERNATIONAL STANDARD ELECTRIC CORP. 25 Oct., 1967, No. 48470/67. Heading H4K. In an exchange system which uses a cross-bar switching network of the type having primary and secondary cross-bar switches in each stage, provision for overflow working is made by connecting certain inlets of each primary switch to certain inlets of some of the other primary switches. The switches are preferably 8 x 16 cross-bar switches of the type described in Specification 1,124,932, each primary switch unit A1-A8 consisting of two such switches having their horizontal bars strapped so as to form in effect a 16 x 16 switch and also having their horizontal bar magnets connected together for simultaneous operation. The switches are held mechanically. There is full availability between the inlets and outlets of each stage. Overflow working is provided by connecting the 7th and 8th (and 15th and 16th) verticals of each A switch to corresponding verticals in some of the other A switches as opposed to the conventional practice of connecting some outlets from an A switch to some inlets of other A switches. In an embodiment (Fig. 3, not shown) the overflow links are used for connecting a register to an outgoing trunk prior to outpulsing. When sending is completed the original calling line/register and register/trunk paths are dropped and a direct connection between the calling line and the trunk is made. However, if the network is congested and a direct path cannot be found, the call is completed over the original paths, the registers being provided with feedbridges to meet this eventuality. This latter feature forms the basis of Specification 1,179,508.
Patent GB-1163146-A (GB)
Title: Improvements in or relating to Magnetic Wires.
IPC: G11C17/02
Filed: 1966-10-28
Abstract: 1,163,146. Read-only stores. FUJITSU Ltd. 28 Oct., 1966 [29 Oct., 1965], No. 48469/66. Heading G4A. [Also in Division H1] A conductive wire is at least partially covered with a magnetic film, the latter being covered by a non-magnetic conductive film. An insulator may surround the conductive film. A semipermanent matrix memory suitable for use in an electronic computer or electronic exchange uses magnetic wires as above for row "sense" wires and conducting strips as column "word drive" wires, each "word drive" wire travelling up the front and down the back of the planar array of row wires. At each row-column intersection is positioned one of a matrix of magnets stuck on a plate which can be removed to allow the magnets to be selectively magnetized and demagnetized to store data. A pulse applied to a column wire tends to rotate the magnetic vectors in the row wires (produced by direct currents therein) from a circumferential to an axial direction, where the magnets are demagnetized, to produce output pulses in the rows (conductive film), but where the magnets are magnetized the vectors are already in the axial direction and remain unchanged. The magnetic wires may also be applied to twistor memories and temporary magnetic wire memories. The provision of the conductive film on the magnetic wire increases signal transmission speeds by reducing inductance and reduces attenuation of high-frequency signal components.