baber/WOPTO huggingface dataset:
Patent GB-1350478-A (GB)
Title: Expandable article
IPC: A61F13/15
Filed: 1971-05-18
Abstract: 1350478 Diapers &c KENDALL CO 18 May 1971 [28 May 1970] 15594/71 Heading A5R [Also in Division B5] An expandable article (e.g. a diaper, surgical pad, or sanitary pad), comprises a planar assembly of superposed rectangular layers of flexible material, portions of all of which are overlapped in a central region to provide more layers in the central region than elsewhere with some of the layers extending from the control region towards the end only, means retaining the layers in superposed relation in said central region and the remaining portion of the layers being moveable independently of each other when pulled in a direction perpendicular to the overlapped edges of the layers in the central region into an irregularly bent non-planar configuration to retain the article in a patulous condition. The article may be in the form of overlapping sheets 11, 12, 13, 14 bonded in the central portion by adhesive 16 (Fig. 1) which when pulled in the direction of arrow 20 forms the patulous condition shown in Fig. 2. Sheets may be folded in the central region (Fig. 5) or the central portion may be cut and folded inwardly to retain the layers (Fig. 7). A plurality of articles may be secured together along edges perpendicular to the central region of overlap to form tubular product (Fig. 8). The article may be formed of layers of absorbent material, e.g. paper, creped wadding or polyurethane sponge and incorporated as a filler between a fluid impervious backsheet and a fluid pervious cover sheet to form a disposable diaper. The diaper may have a backing sheet 91 which has side flaps 92 extending perpendicular to the central region of overlap and folded inwardly, and secured to the cover sheet 93 so as to enclose and retain the filler 94. The cover sheet 93 and the backing sheet 91 preferably have at least one pleat 96, 95 parallel to the pleats on the central region of overlap. In an alternative embodiment the sheets may be of aluminium foil or pliable metal and a plurality of articles made the reform may be secured together along edges perpendicular to the central region of overlap to form a tubular product (Fig. 8) which may be used as a splint.
Patent GB-1157030-A (GB)
Title: Soundproof Cover for a Calculating or like Office Machine
IPC: B41J29/08
Filed: 1967-04-05
Abstract: 1,157,030. Typewriters. ING. C. OLIVETTI & C. S.p.A. 5 April, 1967 [7 April, 1966], No. 15631/67. Heading B6. A soundproof cover for a typewriter or like office machine has a base frame plate 26 attached through resilient connections 25, to a bottom plate 6, which bears through resilient blocks 36 on to transverse bars 37 provided with vieldable feet 38; the connections 25, the blocks 36 and the feet 38 all being offset in plan. The resilient connections 25 each comprise a hyperboloid rigid member 28 held in a rubber or like ring 31 in the bottom plate 6. The top shell 7 of the cover is attached to the bottom plate 6 by threaded spindles 9, Fig. 5, extending through yieldable rings 11. The spindles are provided with frusto-conical heads 14 which engage behind the forked ends 22 of slides 16 mounted in blocks 19 secured to the bottom plate 6. The shell 7 is provided with an opening 39 to house a keyboard covering plate 41 provided with bent edges 42 having a cushioning strip 47 which bears upon rubber or like cushions 43 inserted on projections 44 and on arms 46 on the shell 7.
Patent GB-1466172-A (GB)
Title: Frequency and phase comparator
IPC: G01R23/02
Filed: 1975-05-22
Abstract: 1466172 Frequency or phase comparison R W HENSON 22 May 1975 [9 April 1974] 15667/74 Heading G1U In order to compare the frequency or phase of two signals F1, F2, four light-emitting diodes 1, 2, 3, 4 arranged physically in a ring are sequentially half energized by successive half-cycles of the first signal Fl, and all the diodes are half-energized by alternate positive, or negative, half-cycles of the second signal F2. The result is that if the signals Fl and F2 are of different frequency the illumination, resulting from a full energization of a diode, progresses around the ring in a direction and speed indicative of the frequency difference, whereas if the signals Fl and F2 are of the same frequency the illumination remains stationary, its position indicating the phase difference.
Patent GB-118364-A (GB)
Title: Improvements relating to Feed Water Heaters.
Inventor: GRESHAM HARRY EDWARD
IPC: F22D1/28
Filed: 1917-10-27
Abstract: 118,364. Gresham, H. E. Oct. 27, 1917. Ejector condensers.- Boiler feed-water is fed under pressure from the feed pump or injector through one or more converging nozzles entraining boiler steam, the water thus heated being delivered into the boiler through a diverging nozzle. The converging nozzles d, g, the diverging nozzle h, and the nozzles of the feed injector c may be enclosed by a common casing. The space c around the converging nozzles is in communication with the boiler steam space, and the heated water passes into the boiler through a port h'. In a modification, the nozzles are placed in the boiler steam space.
Patent GB-1077598-A (GB)
Title: Preparation of n-demethyl tetracyclines
IPC: C07C233/00
Filed: 1966-04-07
Abstract: N-Demethyltetracyclines are prepared by oxidizing the manganese or cerium metal chelate of a 12a-deoxytetracycline having at least a 4-dimethylamino group and the 1-, 11-, and 12-keto groups, i.e. <FORM:1077598/C2/1> (or tautomeric forms thereof), and optionally further substituents, by treating it with an oxidizing agent at a pH of 8 to 10 in an aqueous reaction-inert solvent, and recovering the corresponding N-demethyl product from the reaction mixture. Suitable oxidizing agents are air, oxygen, ozone, hydrogen peroxide, alkali metal peroxides, organic peroxides such as benzoyl-, acetyl-, acetyl-benzoyl-, lauroyl-and stearoyl-peroxide, and organic peracids such as peracetic and perbenzoic acids, the peracids optionally being formed in situ by reaction of acetic or benzoic acid with hydrogen peroxide.  When organic peroxides are used, free radical initiators such as a , a 1-azodiisobutyronitrile; a ,a 1 - azobis - (a ,a 1 - dimethyl-valeronitrile); dimethyl- and diethyl-a ,a 1-azodiisobutyrate; or 1,11-azodiisobutyrocarbonamide, are preferably present. The chelates are either formed in situ prior to the oxidation, by simple admixture in the reaction solvent of an appropriate soluble managanese or cerium salt and the tetracycline, or may be preformed and added as the chelate.  Suitable solvents are water, and aqueous mixtures containing one or more lower alkanols, dimethyl formamide, dioxane, acetonitrile, tetrahydrofuran, and alkyl ethers of glycols.  Any tetracycline having the aforesaid essential groups may be used, many being listed.  The reaction products may be isolated by removal of the metal ion by precipitation, e.g. with H2S, precipitation of the products by adjusting the pH to their isoelectric point, concentration of the reaction mixture followed by solvent extraction of the products, or absorption of the chelating metal on weakly acidic carboxylic acid resin to leave the products in the eluate.  The reaction product mixtures so obtained contain unchanged starting material and other by-products, from which the desired N-demethyltetracycline is isolated by column chromatography. Examples are given for the preparation of the following 6 - deoxytetracyclines:  (1) N - demethyl - 6-demethyl-(in the epi form); (2) N-demethyl-6-demethyl- (in the normal form); and also (3) epi-N-demethyltetracycline and many of its analogues with various listed substituent groups.
Patent GB-651913-A (GB)
Title: Purification of ª-aminocarboxylic acids
Filed: 1948-06-11
Abstract: New compounds are obtained by reacting sodium or potassium carbonate with an a -amino carboxylic acid in an aqueous medium and isolating the product.  Suitable a -amino carboxylic acids are glycine, alanine, valine, leucine, phenylalanine, cysteine, methionine, tyrosine, proline, glutamic acid, lysine and histidine.  The product from glycine and sodium carbonate probably has the formula <FORM:0651913/IV (b)/1> The reaction product may be isolated from the reaction mixture by cooling a hot concentrated aqueous solution or by the addition of methanol to a concentrated aqueous solution at room temperature. The new compounds are useful as intermediates in the synthesis of N-anhydrocarboxy-a -amino acid and of valuable polymeric materials.  The a -amino acids may be regenerated in a purified form from the new compounds, e.g. by acidification of an aqueous solution thereof followed by crystallization and filtration; or the reaction product may be converted by treatment with barium hydroxide into the corresponding barium product which may be boiled in aqueous solution to regenerate the amino acid.  In the examples: (1) sodium carbonate is reacted with (a) glycine, (b) l-leucine, (c) dl-alanine, (d) a -amino-isobutyric acid, (e) phenyl alanine; and (2) the reaction product of (a) sodium carbonate and glycine is treated with saturated aqueous barium hydroxide solution; pure glycine is obtained by boiling an aqueous solution of the barium product; and (b) Na2CO3 and l-leucine is warmed with water, and hydrogen chloride and more water are then added; the mixture is heated and on cooling purified l-leucine separates.  Specification 651,914 is referred to.
Patent GB-867512-A (GB)
Title: Bicycle lantern
IPC: B62J6/02
Filed: 1957-05-17
Abstract: 867,512. Electric battery lamps. NEW, E. T. May 17, 1957 [June 4, 1956], No. 15797/57. Class 39(2). An electric battery lamp of streamlined form for use as a bicycle lamp comprises a casing formed of upper and lower shells 1, 2 abutting along their longitudinal edges 3, a lamp bulb 12 behind which is a reflector 11, a battery holder 9 and a switch 6, a spring 10 being provided to urge the reflector forwards against a peripheral flange on a lens 14 to hold this in place against a split ring 1<SP>11</SP>, 211 the parts of which may be integral with the shells 1, 2, and one part being movable at right angles to the axis of the ring to permit removal of the lens. The shells 1, 2 may be hinged together along one side, and a latching device may be provided to hold the casing closed. The upper part of the casing has a skirt which overlaps the adjacent edge of the lower part and this may be formed with a movable directed U-shaped projection passing through a slot in the lower part and engaging a hinge pin. A spring 8 is mounted on the switch 6 to bear on a battery in the holder 9. Where the split ring forms part of the shells 1, 2 the upper part 1<SP>11</SP> may be extended to form a vizor 13.
Patent GB-560276-A (GB)
Title: Improvements in boilers or kettles for the production of distilled water
IPC: F22B7/00
Filed: 1942-11-09
Abstract: 560,276. Hot water boilers. FOUNTAIN, H, J., and CLARKSON THIMBLE TUBE BOILER CO., Ltd. Nov. 9, 1942, No 15832. [Class 64 (i)] [Also in Group III] A boiler for distilling water has a longitudinally corrugated furnace .flue 6 which is secured to the front and back boiler plates 2 by bolts and wing nuts 12, 18. The nuts 18 also secure the smoke-box to the back plate. The smoke-box is removed to withdraw the flue.
Patent GB-751292-A (GB)
Title: Improvements in or relating to the sheathing of electric cables with light metal
Inventor: DUDDRIDGE GORDON KENNETH
IPC: B21C23/28
Filed: 1954-05-28
Abstract: 751,292. Extruding. STANDARD TELEPHONES & CABLES, Ltd. May 28, 1954, No. 15833/54. Class 83 (4). In a process for extruding a sheath of light metal or alloy, particularly aluminium, on to a cable, the extrusion is performed in two stages ; in the first stage a portion of a relatively large billet is extruded to form a smaller billet and in the second stage the smaller billet is extruded through a die around the cable. A cable sheathing press, Fig. 8, has two main billet containers 1, 1<SP>1</SP> from which the billets are extruded simultaneously by hydraulically operated rams 2, 2<SP>1</SP> into a secondary container 5 containing a secondary hydraulically operated hollow ram 10. During the filling of the secondary container the ram 10 is forced away from the die 6 and thereafter the pressure on the main rams 2, 21 is reduced whilst pressure is applied to the secondary ram 10 to extrude the metal from the secondary container 5 through the die 6. The secondary container is then refilled from the main containers. When the main rams 2, 21 have reached the end of their inward travel, the main containers 1, 1<SP>1</SP> are retracted away from the die block 4 by hydraulic motors 14, and-shears 11 operated by hydraulic motors 19 shear off the discards remaining in the main cylinders. The discards are ejected from the containers during the further retraction of the latter with the rams stationary. The main rams 2, 2<SP>1</SP> which may carry dummy blocks are movable transversely by hydraulic motors 13 to permit insertion of the billets into the main containers. Draw-back motors 15 are provided for the main rams. The cable passes through a hollow stem 17 and a guide tube 7 where it is cooled by compressed air. The extruded sheath emanating from the die is cooled by water jets. The die 6 is held in position by a hydraulically operated bolster 18 which may be retracted to permit the die 6 and any residue metal to be moved downwardly out of the secondary container by the ram 10. In another embodiment (Fig. 6, not shown) only one main container is provided. In a further embodiment, Fig. 10, two or more secondary containers 5, 5<SP>1</SP> with solid rams 10 are fed from one or more main containers. The hydraulic motors may be controlled manually or automatically. New billets inserted in the main container or containers will upon extrusion be united with the sheared-off ends of the previous billets.
Patent GB-1103436-A (GB)
Title: Method of and apparatus for controlling an industrial installation
IPC: G05B13/02
Filed: 1965-04-13
Abstract: 1,103,436. Automatic optimizing control. BATTELLE MEMORIAL INSTITUTE and COMPAGNIE FRANCAIS THOMSON-HOUSTON. April 13, 1965 [April 14, 1964], No.15837/65. Heading G3R. In a system for controlling an industrial installation, successive adjustments of a controlling variable are made in opposite senses and the variable is then adjusted to a value calculated from its values at the points at which sense of adjustment is switched, a similar operation being carried out for any other controlling variables in turn until, finally, there is a pause before the whole series of operations is repeated, if necessary to achieve a desired condition. As described, measurements of several characteristics of an industrial process are applied to a computer the output of which is a quantity which is automatically maintained at a minimum by a system involving flip-flops, condenser memories, transistors and relays. The system first varies one of several controlling variables of the process by applying a control signal through an integrator and this variation continues in the same direction for a predetermined time or until a function of timederivatives of the quantity to be minimized passes through zero from a negative to a positive value. The direction of variation is then reversed for a further predetermined time or until the derivative criterion occurs again. If the first variation is favourable, i.e. towards the minimum, as indicated by the sign of the first derivative, the values of the variable are stored at the end of the first and second variations and the arithmetic mean between them derived. Further adjustment of the variable is then made to bring it to the mean value. If the first variation is unfavourable, i.e. away from the minimum, the values of the variable at the end of the second and third variations are utilized to calculate the mean value to which the variable is finally adjusted. After the first variable has been so controlled, each of the other variables is controlled, in turn, in an exactly similar manner, and, finally, a period allowed for the system to settle down. The whole operation is then repeated until a function of time derivatives of the quantity to be minimized or the change in the quantity after one operation is below a predetermined value. Thereafter the operation is only restarted if (a) a periodic test reveals that the derivative function is above the predetermined value (b) a disturbance greater than a predetermined magnitude occurs in an uncontrolled variable influencing the process or (c) a switch is manually operated. Other criteria such as the first one or two, successive, favourable variations of a controlling variable may be used to determine which values are stored to calculate the value to which the variable is set before proceeding to the next variable.
Patent GB-908179-A (GB)
Title: Digitising device
IPC: H03M1/00
Filed: 1959-05-08
Abstract: 908,179. Electric selective signalling systems. STANDARD TELEPHONES & CABLES Ltd. May 8, 1959 [May 14, 1958], No. 15881/59. Drawings to Specification. Class 40 (1). In a shaft-digitizer ambiguous indications from a coded scale are avoided by using two identical (except as mentioned below) coded scales displaced angularly with respect to each other by half of the smallest scale division, one of the scales carrying an additional track which selects which of the two coded-scales is to be used for indicating the shaft position for every position of the shaft. The scales can be sensed either photo-electrically or by brushes.
Patent GB-1240980-A (GB)
Title: Joint with interfitting parts
Inventor: JONES WILLIAM HENRY
IPC: F16B12/04
Filed: 1970-04-03
Abstract: 1,240,980. Joints. W. H. JONES. 3 April, 1970, No. 15895/70. Heading A4H. In a mortise and tenon joint, the mortise has a generally rectangular cross-section with semi-circular ends 4 and a countersunk shoulder at its front face comprising concave curved end surfaces 7 connected by straight inclined side surfaces 5, and the tenon has semi-circular edges 9 connected by flat sides 10 and shoulders at its rear face comprising convex end and straight inclined side surfaces 12, 11 complementary to surfaces 7 and 5 of the mortise. The mortise may be open at both ends or blind (Fig. 4), and in the former arrangement the tenon may project beyond the rear end of the mortise to receive a wedge (18, Fig. 5). The joint may be secured by adhesive. Wedges (16 or 17, Figs. 3 or 4) may be driven into cuts in the free end of the tenon, or the joint may be transfixed by wood or metal pins, nails, screws or bolts. The mortise may taper from its shoulder towards its rear end, the tenon having a corrresonding taper. The mortise may have a countersunk shoulder at both ends to receive two tenons. Two mortises may meet to receive two tenons at an angle. The invention is applicable to members of round wood furniture, rustic garden furniture, garden screens, arches and pergolas, hurdles, fencing, frames. The members may be round, rough, split, irregular and or converted timber sections, or they may comprise wood fibre or chips, or plastics.
Patent GB-1501135-A (GB)
Title: Phenoxyphenyl ethers and their use as pesticides
IPC: A01N39/00
Filed: 1975-04-17
Abstract: 1501135 Phenoxy-phenyl ethers CIBAGEIGY AG 17 April 1975 [18 April 1974 12 March 1975] 15900/75 Heading C2C The invention comprises compounds of the general Formula I wherein X represents oxygen or sulphur, R 1  represents a C 1-6  alkyl, C 3-6  cycloalkyl, C 5  or C 6  cycloalkenyl, C 2-4  haloalkenyl, C 3-5  alkynyl, C 2-4  alkenyl or benzyl group; R 2  represents a hydrogen atom or a methyl or ethyl group and R 3  represents a hydrogen atom or a methyl group, or R 2  and R 3 , together with the adjacent carbon atoms, form a 5- or 6-membered saturated ring and each of R 4  and R 5 , which may be the same or different, represents a hydrogen atom or a methyl group. The compounds of Formula I are used as pesticides and compositions for such use are described and claimed. The compounds of Formula I may be prepared by reacting a compound of formula wherein Me represents a metal atom or a compound of formula in the presence of a base or of an acid-binding agent with a compound of formula wherein Hal represents a halogen atom.
Patent GB-1217154-A (GB)
Title: Container for tetrahedral packages
Inventor: YOUNG HAROLD FRANK
IPC: B65D85/34
Filed: 1967-04-07
Abstract: 1,217,154. Cartons. ASHTON CONTAINERS Ltd. 20 June, 1968 [7 April, 1967], No. 15972/67. Haeding B8P. A carton for tetrahedral packages includes at least two sections of regular hexagonal crosssection which are displaced relatively to one another by substantially 30 degrees. In an embodiment, the carton, Fig. 3b, is erected from a blank, Fig. 2 (not shown), and the two sections are connected by triangular panels 41. The base may be conical or formed by the abutment at 73 of the edges of panels 53 which have flaps (54) hinged to each other at (55). A hexagonal pyramidal lid, Fig. 3a (not shown), is erected from a blank, Fig. 1 (not shown), and has peripheral flaps (17) which are upturned to engage the walls 42 of the container when in use. The packaging of three layers of six tetrahedral packages is described and illustrated, Figs. 4 to 7 (not shown), and is such that seams of the packages abut either the lower edge of a panel 40 or crease 31, thereby avoiding damage to the walls of the container by the ends of the seams
Patent GB-330124-A (GB)
Title: Silencer for exhaust gases, steam or air
IPC: F01N13/12
Filed: 1929-05-24
Abstract: 330,124. Seaborne, A. B., and Bacon, A. R. May 24, 1929. Exhaust - silencers.- The exhaust gas, steam or air is discharged from a pipe c into a nozzle a whence it passes through tangential slots a<2> into liquid in a chamber b. The chamber has an inlet b<1> and outlets b<2>, and is completely submerged in the liquid which may be water or oil. The exhaust receives a rotary movement which is imparted to the liquid and the centrifugal force set up tends to facilitate the discharge of the mixed exhaust and liquid through the outlets b<2> and the entry of fresh liquid through the inlet b<1>. A flange a<3> on the nozzle is held by bolts c<2> betweeen the chamber b and a flange c' on, the pipe r. The liquid may be rotated by paddles and the exhaust introduced near the centre of the rotating mass.