baber/WOPTO huggingface dataset:
Patent GB-1205226-A (GB)
Title: Process for the isolation of cephalosporin c
IPC: C07D501/28
Filed: 1967-12-05
Abstract: 1,205,226. Purification of cephalosporin C. CIBA Ltd. 5 Dec., 1967 [5 Dec., 1966], No. 55216/67. Heading C2A. Cephalospirin C is purified or isolated from a culture broth by adding 2,4,6-trinitro benzene sulphonic acid, or a salt thereof, to an aqueous solution of cephalosporin C and recovering the so-formed N-2,4,6-trinitro-phenyl cephalosporin C from the solution. The pH of the reaction is 7 to 10 and preferably 8.5 to 9.0. The product is recovered by (a) extraction with a waterimmiscible solvent or mixture of solvents, e.g. methylisobutyl ketone, ethyl acetate or a mixture of n-butyl acetate and n-butanol (1:1) at pH 1 to 3, preferably 1.8 to 2.0, (b) precipitation at pH 1 to 3. The product may be converted to the dibenzhydryl ester by treatment with diphenyldiazomethane. This ester is converted to 7-aminocephalosporanic acid benzhydryl ester by treatment with phosphorus pentachloride in anhydrous methylene chloride and pyridine. 7-ACA benzhydryl ester is converted to 7-aminocephalosporanic acid by treatment with trifluoracetic acid in anisole. Specifications 810,196, 968,324 and 1,041,985 are referred to.
Patent GB-1387328-A (GB)
Title: Stabilized lactone compositions
IPC: C07D305/14
Filed: 1972-11-30
Abstract: 1387328 Stabilizing lactones EASTMAN KODAK CO 30 Nov 1972 [2 Dec 1971] 55358/72 Heading C2C α,α-Disubstituted-#-propiolactones of the formula wherein each R and R<SP>1</SP> are hydrogen, straight or branched chain alkyl groups of from 1 to 10 carbon atoms, substituted or unsubstituted cyclic hydrocarbon groups of from 6 to 10 carbon atoms, or wherein R and R<SP>1</SP> join to form a carbocyclic ring of from 6 to 10 carbon atoms, are stabilized by mixing therewith a stabilizing amount of an ester of the formula (R<SP>2</SP>O) 3 B, wherein each R<SP>2</SP> is (a) a straight or branched chain alkyl group of from 1 to 8 carbon atoms, (b) a substituted or unsubstituted benzyl group of the formula wherein each R<SP>3</SP> is hydrogen or a straight or branched chain alkyl group of from 1 to 8 carbon atoms, or (c) a substituted or unsubstituted phenyl group of the formula wherein each R<SP>4</SP> is hydrogen or a straight or branched chain alkyl group of from 1 to 8 carbon atoms. The borate ester stabilizer is suitably employed in an amount of from 0À001 to 5% based on the weight of the lactone.
Patent GB-1467820-A (GB)
Title: Electronic timepieces
IPC: G04G9/02
Filed: 1974-12-23
Abstract: 1467820 Electronic timepieces DAINI SEIKOSHA KK 23 Dec 1974 [25 Dec 1973] 55470/74 Heading G3T An electronic timepiece has a plurality of display elements 4, Fig. 1, e.g. liquid crystal or light emitting diodes which are caused to assume different operating conditions at different times, the passage of successive short periods of time, e.g. seconds or 10 seconds, being displayed by different combinations of operating conditions displayed by the plurality of elements. The different operating conditions may be at least two of the following:- "lit", uninterrupted steady display for a predetermined short period, "flashing", e.g. every second, and "out". Fig. 2 shows the main blocks of the timepiece. Fig. 3 shows one arrangement of the seconds  de-coder 17 and minutes stage 13 of the frequency divider which is operative to cause a seconds display element 41 to flash once per second during a first period 0-9 seconds, the other elements 42-46 being out. At the tenth second, the element 41 is caused to be continuously lit and element 42 commences flashing and so on - as illustrated in Fig. 4. From 50-59 seconds elements 41-45 are continuously lit and element 46 is flashing. At the end of 60 seconds all the elements are out, shift register 22 is reset and the cycle is repeated. In Fig. 3, the shift register 22 receives 10 second shift pulses at B, OR gates 23a-23e receive 1 second pulses at C from the frequency divider, and a logic "1" is applied at terminal A of the register. After the first 10 seconds the logic "1" signal appears on output lead 22a; after the next 10 seconds it appears on 22b, and so on until all outputs 22a-22f show logic "1" whereupon the register 22 is reset. These outputs are applied to AND gates 24a-24e and to the OR gates 23a-23e together with the 1 second pulses. Consequently the outputs of the gates operate the seconds display elements 41-46 via a driver circuit 20 to give the sequential display pattern described above and shown Fig.4. Various other combinations of seconds display effects are described. In an embodiment Figs. 15, 16 (not shown) all the elements are initially out and are sequentially lit, while in Figs. 17, 18 (not shown) arrangement they are initially all lit and are sequentially switched out. In Figs. 27, 28 (not  shown) the elements flash sequentially, only one being active at a time. In Figs. 13, 14 (not shown) one element is lit at a time, the others flashing. In Figs. 11 (not shown) and 13 the shift register is replaced by a ring counter, in Fig. 15 the shift register is directly connected to the display elements 40-46. Specifications 1377534 and 1349209 are referred to.
Patent GB-560816-A (GB)
Abstract: 560,816. Hinges. INJECTA, AKT.- GES. July 3, 1942, No. 9237. Convention date, July 4, 1941. [Class 65 (ii)] [Also in Group XXXII] A spherical member 4 attached to a bicycle is connected to a trailer by two pivotally interconnected portions 1 and 3, the portion 3 being shaped to fit over the spherical member 4 and to be held down upon it by the-effect of the tension P exerted by the member 4 upon the portion 3, the line M, N of the effective force passing through the sphere centre M and the point of contact O between portion 3 and the sphere so that the' line M, N is in the space between the portion 3 and the line connecting the point of contact O with the centre of the bolt 2. A leaf or helical spring may be provided to hold portion 3. down when member 4 does not exert tension. In a modification shown in Fig. 5 a pivoted locking-lever 10 is provided in a central slit of the pivoted portion 3, being held in the locking position as shown by a surface 14 engaging a stop 16 of the piece 1 to which portion 3 is pivoted at 2. Release is effected by pushing front surface 19 to depress the rear end of the lever 10 and move the lever backwards. Modified forms suitable for manufacture by die-casting and with handles cast on to the lever-carrying part or on to the drawbar are also described.
Patent GB-1484736-A (GB)
Title: Lubricant compositions
IPC: C10M173/00
Filed: 1974-12-31
Abstract: 1484736 Oil-in-water emulsion lubricating composition EXXON RESEARCH & ENG CO 23 Dec 1975 [31 Dec 1974] 56142/74 Heading C5F A lubricant, suitable for use with pneumatic tools, comprises an oil-in-water emulsion containing (a) 1-10 wt. per cent lubricating oil, (b) 3-35 wt. per cent oil-soluble lubricant additives; (c) at least 10 wt. per cent water and (d) 20-50 wt. per cent of at least one watersoluble compound capable of lowering the freezing point of the composition and selected from alcohols, alkanolamines, glycols and higher polyhydric alcohols, and glycol ethers, said components (a) to (d) together forming substantially 100% of the composition. The oil (a) is preferably a mineral oil but may also be an animal or vegetable oil, or synthetic oil. The oil-soluble lubricant additives may include emidsifiers such as alkylaryl polyglycol ethers and/or sodium alkylbenzene sulphonate, bactericides such as 1,3,5-trialkyl hexahydro-striazine, extreme pressure agents such as phosphate esters, chlorinated wax, sulphurized olefins or sulphurized sperm oil, anticorrosive additives such as fatty acid alkanolamines or fatty acid amides, anti-stick-slip agents such as a C 6 -C 24  saturated or unsaturated acid and a solubilizing agent such as 2-butoxy-ethanol. The water-soluble compound (d) is preferably diethylene glycol, ethylene glycol, glycerol or a mixture of glycerol and ethanolamine. A water-soluble bactericide such as 1,2-benzisothiazolone or 6-acetoxy-2,4-dialkyl-m-dioxane is preferably also present.
Patent GB-1315809-A (GB)
Title: Diphenyl sulphone derivatives
IPC: C07C317/44
Filed: 1971-12-03
Abstract: 1315809 Preparation of diphenyl sulphone derivatives GELSENBERG AG 3 Dec 1971 [4 Dec 1970] 56248/71 Heading C2C The invention comprises a process for extracting diphenyl sulphone-4,4<SP>1</SP>-dicarboxylic acid ester from a mixture containing this compound and its isomers by treating the mixture with 1-20 times by weight based on the isomeric mixture of a ketone and/or aromatic hydrocarbon at a temperature of 10‹ to 50‹ C. to preferentially dissolve the said isomers and separating the solid residue enriched with the diphenylsulphonic-4,4<SP>1</SP>-dicarboxylic acid ester from the accompanying solution.
Patent GB-1213462-A (GB)
Title: Acoustic panels
IPC: E04B1/84
Filed: 1967-12-13
Abstract: 1,213,462. Acoustic laminated panels. LE PANNEAU MAGNETIQUE. 13 Dec., 1967 [22 Dec., 1966; 21 Nov., 1967], No. 56556/67. Heading B5K and B5N. [Also in Division E1] A sound insulating panel comprises a sheet of material 2 capable of absorbing sound waves and an acoustic diaphragm formed by a flexible foil 3 having a plurality or projections 4, the foil being discontinuously bonded to the sheet. The absorbent sheet 2 may be a phenolic foam with at least 20% open pores, and the foil 3 may be vacuum-shaped polyvinyl chloride. The projections 4 may comprise truncated square pyramids or prisms of trapezoidal section extending the length of the panel. Holes may be provided in some projections to permit transmission of certain frequencies. The foil 3 may be connected with the sheet 2 at an upturned edge portion 7, either by forcing it around sheet 2 to grip it, by glueing, or by means of pointed fastening members; as shown in Fig. 3a a groove 8a is provided for a re-entrant on the upturned edge 7 of the foil, which is engaged either at elevated temperature or by elastic deformation. Glue-spots may be used at points where the faces of foil and sheet are in contact. However, a small clearance may be left between said faces. The panel may be provided with a magnetic securing member for attachment to steel framework (see Division E1). Several panels may be joined together.
Patent GB-1410989-A (GB)
Title: Imaging system
IPC: G03G7/00
Filed: 1972-12-08
Abstract: 1410989 Liquid crystal compositions XEROX CORP 8 Dec 1972 [14 Dec 1971] 56671/72 Heading C4X [Also in Divisions G2 and H4] A cholesteric liquid crystal composition comprises a nematic liquid crystal material and an optically active non-mesomorphic material. Each material may be a single compound or a mixture of compounds, and lists of suitable compounds are provided. The optically active material preferably forms 2-60% by weight of the composition. A preferred nematic material appears to be p-ethoxybenzylidene-p<SP>1</SP>-n-butylaniline. Substitution of a racemic mixture for the optically active material gives a nematic composition.
Patent GB-1445440-A (GB)
Title: Carbamates of 1-hydroxymethyl-imidazoles and benzimidazoles methods for their preparation and compounds containing them
IPC: C07D235/06
Filed: 1973-12-07
Abstract: 1445440 Carbamates of 1-hydroxymethylimidazoles HOECHST AG 7 Dec 1973 [9 Dec 1972] 56796/73 Heading C2C Novel compounds (I) and their salts in which R 1  and R 2  are hydrogen or together form a group -CH = CH-CH = CH- (which may be substituted by one or more alkyl, halo-alkyl, alkoxy, haloalkoxy or nitro groups or halogen atoms and R 3  and R 4  are hydrogen halogen, alkyl, haloalkyl, alkoxy, haloalkoxy or nitro or together represent (which may be substituted as above) are prepared by reacting a compound III with either an R 3 , R 4 -substituted phenyl isocyanate or an N-(R 3 ,R 4 -substituted phenyl)- carbamic acid halide. Compounds I (R 1  = R 2  = R 3  = H, R 4  = H, Cl, Me, MeO, CF 3 , CF 2 CHF 2 NO 2  ; R 1 =R 2 =H, R 3 =R 4 =Cl, CF 3 ; R 1 =R 2 =H, R 3 +R 4 = -CH=CH-CH=CH-; or R 1 + R 2 = -CH=CH-CH=CH-; R 3 =H, R 4 = CF 3 ) are prepared. Compounds III are prepared by reacting an R 1 ,R 2 -substituted imidazole with formaldehyde. Compounds I exhibit hypolipeamic, antiinflammatory, analgesic, anti-pyretic and anorexigenic activity and certain compounds show a sedative effect and prolong and intensify the action of barbiturates. They form with a carrier a pharmaceutical composition which may be administered orally or parenterally. The compositions may contain further active substances such as cardiac and circulatory agents, anti-diabetics, other hypolipaemics, psychopharmaceutics or vitamins.
Patent GB-1315721-A (GB)
Title: Feeding pressure modulator for hydraulically-operated devices
IPC: F16D48/04
Filed: 1970-11-30
Abstract: 1315721 Controlling clutches G CATTANEO 30 Nov 1970 [29 Nov 1969] 56814/70 Heading F2L [Also in Division F1] To provide gradual engagement of an hydraulically actuated fuction clutch H, a pump A delivers to the engaging chamber 52 of the clutch via a throttle valve 24 and a valve bypass path formed by a circumferential groove 30 in a piston 14. Initally, an operating valve D to initiate clutch engagement, the hydraulic fluid flows rapidly through the open throttle valve 26 and the groove 30 to fill the engaging chamber 52. Further increase in pressure in the chamber to take up play in the clutch plates is effected gradually, the pressure increase acting to move piston 14 up against its spring 16 to cut-off flow through grooves 30 so that the pressure difference across valve 24 moves it against its seat 28, flow taking place through its calibrated opening 26 to complete clutch engagement. Again, Fig. 2 (not shown), the controls are duplicated for two clutches, the pair of pistons (14a), (15) being loaded by a common spring (16a). Also the spring 16 may be replaced by two or more different springs acting successively. Again, a pair of series-arranged valves 24 may be provided, or the valve replaced by a plug member varying the cross-section therethrough in accordance with the pressure difference thereacross.
Patent GB-1165339-A (GB)
Title: Method of Producing Linings of Tunnels, Mine Galleries or the like Structures
Inventor: RANG EMIL
IPC: E21D11/38
Filed: 1966-12-20
Abstract: 1,165,339. Tunnel linings &c. PHILIPP HOLZMANN A.G. 20 Dec., 1966, No. 57067/66. Heading E1F. A method of sealing tunnel, mine gallery and like linings consisting of Tubbing rings assembled from individual tubbing elements, comprises applying a synthetic plastics seal to at least the joint between the less erected ring and the one preceding it in the annular space left between the rings and the surrounding strata. The material may be sprayed or painted on, or be in the form of sheet material glued or welded on. Each ring may be provided, prior to erection, with a synthetic plastics sleeve having a protruding edge, which may have longitudinal slits, to engage and be adhered to the periphery of an adjacent ring. The longitudinal joints between the elements of each ring may also be sealed and the annu- 1ar space is finally filled under pressure with, e.g. cement mortar. Each ring is erected under the shield of the tunneling machine, the shield having a seal sliding on 'the outer periphery of the previously erected sealed rings.
Patent GB-1330876-A (GB)
Title: Process for producing polyolefin resin foam
IPC: B29C41/04
Filed: 1970-12-10
Abstract: 1330876 Foams of olefinically unsaturated compounds ASAHI KASEI KOGYO KK 10 Dec 1970 [12 Dec 1969] 58694/70 Heading C3C Foams of polymers of olefinically unsaturated compounds are made by charging a mixture of a polymer of an olefinically unsaturated compound in powder form and not containing foaming agents or such a polymer containing a foaming agent which decomposes on heating above the melting point of the polymer and beads and/or pellets of such a polymer which contains a foaming agent which decomposes on heating above the melting point of the polymer, into a concave mould, and rotating the mould in an atmosphere heated to a temperature higher than the decomposition temperature of the foaming agent. The product has an unfoamed or foamed surface skin layer integrated with an inner foamed layer of different density. Specified polymers are polyethylene, polypropylene, ethylene-propylene copolymers, ethylene-vinyl acetate copolymers, and ethylene-ethylacrylate copolymers. Specified foaming agents are benzenesulphonyl hydrazide, dintrosopentamethylene tetramine, azodicarbonamide, hydroxybenzenesulphonyl hydrazide, toluenesulphonyl semicarbazide, trihydrazinetriazine, hydroxybenzenesulphonyl semicarbazide, oxalic acid hydrazide, hydrazodicarbonamide, nitroguanidine, barium azodicarboxylate and mixtures. The moulding may be in the form of a sewing dummy.
Patent GB-1284680-A (GB)
Title: Method of preventing or inhibiting scale deposition in aqueous systems
Inventor: SCHULZ GUENTHER
IPC: C11D3/36
Filed: 1970-12-15
Abstract: 1284680 Inhibiting scale deposition JOH A BENCKISER GmbH CHEMISCHE FABRIK 15 Dec 1970 [27 Dec 1969] 59478/70 Addition to 1233128 Heading C1C [Also in Divisions C3 C5 and C7] Scale deposition in aqueous systems is inhibited or prevented by introducing into the system a sub-stoichiometric amount in relation to the hardness in the water, of a modified starch obtained by treatment with an aqueous solution of an organic phosphonic acid below the glutinization temperature of the starch (see Division C3).
Patent GB-1427817-A (GB)
Title: Automatic locking sliders for sliding clasp fasteners
IPC: D01F6/38
Filed: 1973-12-21
Abstract: 1427817 Slider for sliding clasp fasteners YOSHIDA KOGYO KK 21 Dec 1973 [29 Dec 1972] 59509/73 Heading E2S An automatic locking slider 10 of the kind comprising a slider body, a pull tab 24 and a locking spring member 23 comprises an upper wing member 12 and a lower wing member 13 connected at one end by an integral neck portion 14 to provide a substantially Y-shaped channel therebetween, a locking spring member 23 which has an inwardly bent tongue portion 23a at one end, a locking prong 23d at the other end, and an exposed centre portion 23e, the upper wing member 11 having an aperture 22 disposed for the passage therethrough of the locking prong 23d into the Y-shaped channel and a retaining lug 18 disposed immediately above the neck portion 14, and a pull tab 24 which has a transversely extending trunnion portion 24a between the locking spring member 23 and the upper wing member 12. The trunnion portion is reduced in thickness compared with the remainder of the pull tab so that the outer surface of the pull tab 24 normally lies substantially flush with the exposed surface of the locking spring member 23, and the retaining lug 18 projects slightly above the outer surface of the pull tab and the locking spring member 23. Lifting the pull tab 24 raises the locking spring member 23 to release the connecting elements, not shown, of a sliding clasp fastener, not shown, to which the slider is fitted, the outward movement of the member 23 being limited by a stop member 26, 26a. In a generally similar arrangement, Figs. 3, 4 not shown, an inwardly bent end (23f) of the locking spring member (23) is received in a corresponding recess in the wing (12) beneath the lug (18) the aperture (22) being longitudinally elongated to extend through the rearward end of the wing (12), and the stop member (26) being disposed horizontally in the form of a gate. In a third embodiment, Figs. 5, 6 the upper wing 12 is bifurcated at its forward end to form an opening 27 which has recesses 12b. 12b on opposite sides to receive the ends of a transversely elongated end portion of the spring 23 which is retained by the lug 18.
Patent GB-1362680-A (GB)
Title: Holder for flat articles
IPC: A47B65/00
Filed: 1972-12-20
Abstract: 1362680 Book-holders TOP SECRET Ltd 20 Dec 1972 [23 Dec 1971] 59990/71 Heading A4U A holder for flat articles such as books, cards, flat containers or rectangular boxes containing for example wound tapes or ribbons, comprises an abutment 5 screwed to a base 4, a lip 3 of a resilient coiled strip or band 1 being clamped between the abutment and the base so that it can be incompletely uncoiled along the base to clamp the articles between the abutment and the uncoiled part of the strip or band. The strip or band may be of stainless steel, the base of wood and the abutment of plastics material, e.g. an acrylic plastics material.
Patent GB-1214691-A (GB)
Title: Improvements in or relating to knitting machines
Inventor: FARMER ERNEST LEONARD
IPC: D04B15/66
Filed: 1968-04-05
Abstract: 1,214,691. Programme control of textile machines. WILDT MELLOR BROMLEY Ltd. March 27, 1969 [April 5, 1968; Dec.19, 1968], Nos.16558/68 and 60457/68. Heading G3N. [Also in Division D1] A pattern control arrangement for a knitting machine comprises a pattern band and reading means providing pulses, in accordance with information spots on the bands, for moving selectors into butt-engaging position and pulses for moving the selectors out of butt-engaging position when not required. As shown, a pattern strip 12 carries transverse rows of holes, and each hole in a row is sensed by a photo-cell 17 responsive to the passage of a light-beam through a hole from a source 16. The strip is driven through sprocket holes by teeth on a drum driven in synchronism with a needle cylinder 1 of the knitting machine. The drum is longer than the width of the strip and the extension 14a is perforated with staggered rows of holes. The number of holes in each staggered row equals the number of needles in a group and each group of needles is allocated a perforation in a transverse row of holes in the strip. The multiple of the groups and the number of needles in a group is equal to the total number of needles in the cylinder 1. The holes in the drum extension are sensed by photo-cells 17n responsive to a light source 16n. Each photo-cell 17 is connected through a buffer stage 22 to a multiple input of a logic amplifier block 21 associated with a group of needle selectors 10. Each photo-cell 17n is connected through a trigger circuit 18, a monostable pulse generator 19 to a buffer stage 20 having multiple outputs, equal in number to the number of groups, feeding the blocks 21. One logic amplifier block 21 provides a positive-going pulse causing energization of a selector element 10 for rocking a selector 9 into the butt-engaging position, when pulses derived from photo-cells 17, 17n occur simultaneously and a negative-going pulse, causing retraction of a selector, when there is no pulse from 17 due to the absence of a programmed hole. By this means the selector elements 10 are cyclically pulsed. Each selector element 10 rocks a selector 9 cooperating with a selecting butt 8, on one of six levels, for a rocking presser 7 associated with a jack 4 for moving a needle 2 by a lifting cam 5. The light from each source 16, 16a is monitored by a photo-electric cell 17d and upon failure or incipient failure, a regulator 25 emits an alarm signal or switches off the machine. It is stated that the punched strip can be replaced by a magnetic tape which actuates reed switches.