baber/WOPTO huggingface dataset:
Patent GB-445730-A (GB)
Title: Improvements in joints of spectacle frames and method of producing the same
IPC: G02C13/00
Filed: 1934-12-22
Abstract: 445,730. Spectacle frames. STEVENS, F. A., Box 33, Elmwood Station, Providence, Rhode Island, U.S.A. Dec. 22, 1934, No. 36826. [Classes 83 (ii) and 83 (iv)] Tube expanders.-Parts 4, 6 of spectacle frames &c. are connected by a screw 18 with an axial hole 42. After insertion the screw shank is expanded by a tool 46 and an anvil 82 attached to plier legs 92, 96. The hole and the tool 46 may be of round, square, &c. crosssection and the outside of the screw may be tapered.
Patent GB-437152-A (GB)
Title: Improvements in or relating to projectiles
IPC: F42B12/06
Filed: 1934-12-24
Abstract: 437,152. Projectiles. PAULET, L., 11, Cours Joseph Thierry, Marseilles, France. Dec. 24, 1934, No. 36993. [Class 9 (i)] A projectile comprising a core of hard metal 2 enclosed in a jacket 3 is formed with an annular chamber 4, Fig. 1, between the core and the jacket at the part of largest diameter, so that this part of the jacket collapses when the shot is fired, leaving two rings 12, 13, Fig. 4, to engage the barrel. The annular chamber may be formed in the material of the core or of the jacket, or partly in both. Lubricant may be placed in the chamber, in which case the jacket is perforated for the escape of the lubricant. The part of the jacket around the chamber may be formed with circumferential corrugations. A lead packing 8 may be placed over the tip of the core in the nose of the projectile.
Patent GB-761749-A (GB)
Title: Process for the separation of fatty acids
IPC: C11C1/00
Filed: 1954-12-22
Abstract: Fatty acids are separated from a fatty material into fatty acids which are solid at 15 DEG C. and fatty acids which are liquid at 15 DEG C. by dissolving the fatty material in isopropyl alcohol, treating the solution with an excess of solid caustic potash in the presence of 0.1 to 0.9 per cent of water, and then cooling the reaction mixture so as to separate into a liquid phase containing the potassium soaps of the liquid fatty acids and a precipitate containing the potassium soaps of the solid fatty acids.  The fatty material may comprise fats, such as palm oil, and mixtures of fatty acids.  The fatty material is preferably dissolved in 1.5 to 9 times its weight of isopropyl alcohol.  The quantity of solid caustic potash added to the solution is between 1.1 and 1.4 times the quantity calculated.  The water content is complied with by using an isopropyl alcohol containing 0.05 to 0.15 per cent of water and using a caustic potash having an assay of at least 85 per cent KoH.  The saponification is preferably effected in a grinding and emulsifying apparatus.  The mixture after saponification is cooled to 0 DEG C. or lower.  The precipitated soaps may be filtered off and the soaps of the liquid fatty acids obtained from the filtrate.  The fatty acids may be obtained by acidification in each case.
Patent GB-898435-A (GB)
Title: Electromagnetic relays
IPC: H01H50/30
Filed: 1960-10-28
Abstract: 898,435. Electromagnetic relays. CONNECTICUT VALLEY ENTERPRISES Inc. Oct. 28, 1960 [Nov. 9, 1959], No. 37085/60. Class 38 (5). [Also in Group XXXV] In a balanced-armature relay having a coil structure with poles at its ends and an armature extending generally in the same direction as the coil structure axis and an opening in the armature in which the coil structure is located, the armature is secured, at a point midway between its ends, to a support member by means of a resilient member which biases the ends of the armature away from the poles of the coil structure. As shown, two relays A, B, for use as sensing and power relays controlling battery charging (Group XXXV), are mounted on a common base 10 and frame 11 and each has a support bracket 14. In each relay the armature 24, 55 comprises a lamination 25, Fig. 7, with two further laminations 26 (Fig. 8) on each side. The laminations are secured together by rivets in holes 28, 31, 33, 34 and extensions 27 of the laminations 25 form the resilient biasing members and are riveted to extensions 18, 19 of the bracket 14. The series coils 20, 21 are mounted on a laminated core 22 having its central laminations extended to form poles 22a, 22b. An insulating block 37 secured to the frame 11 supports a moving contact spring 36 which is normally held away from a fixed contact 41 by an actuating arm 38 projecting from the armature. The latter moves between stops 45, 46 projecting from the fixed end of the spring 36 and when the coils 20, 21 are sufficiently energized, the armature approaches the poles 22a, 22b and allows the spring 36 to engage the contact 41. The relay B is generally similar to the relay A except that the armature carries an actuating member 60 arranged on attraction of the armature to poles 53, 53a to move a spring contact 61 away from a fixed contact 63 to engage a fixed contact 64.
Patent GB-1361889-A (GB)
Title: Firing angle control in electric power converters
IPC: H02M7/155
Filed: 1972-08-09
Abstract: 1361889 Controlling rectifiers GENERAL ELECTRIC CO 9 Aug 1972 [9 Aug 1971] 37086/72 Heading H2F In a rectifying system, triggering of controlled rectifiers when the anode voltage is insufficient is minimized by sampling the voltage across the rectifiers at the time of triggering, comparing the sampled voltage with a reference and deriving an error signal indicative of insufficient anode voltage which is used to delay the triggering time accordingly. The invention is applicable to HVDC transmission systems using thyratrons, ignitrons or mercury arc rectifiers but is particularly applicable to such systems using a large number of thyristors in series/parallel. In such an arrangement interference on the A.C. side during the triggering time may prevent striking of some of the parallel paths with consequential overloading of the remaining paths. In Fig. 1 (not shown), a polyphase bridge of each main converting elements formed by such series parallel thyristors and has a three-phase transformer supplied from an auxiliary winding on the main input transformer and having three centre-tapped secondaries feeding terminals R-Y...R-B (Fig. 2). The triggering pulses are derived from a voltage controlled oscillator (not described in detail), the frequency of which is controlled in response to the output of an automatic current regulator and pulses of which are distributed to the twelve main converting elements of a pair of three-phase bridges driven by star/delta transformers. Sampling rectifier anode voltages.-Six-phase anti-phased square waves are received at terminals D1 ... D4<SP>1</SP> and fed to diode OR gates D19...D26 and diode AND gates D43 ... D46 the outputs of which are arranged to turn on one of transistors Q1...Q3 during times of overlap between appropriate pairs of square waves (i.e. when sampling is required). Capacitor C1 stores the minimum anode voltage during sampling time and is normally charged negatively via transistor Q6. When transistor Q1 is turned on, diodes D13, D14 are turned on, passing the fullwave rectified value of the appropriate anode voltage to transistors Q4, Q5 which allow diode D59 to pass the lowest anode voltage to capacitor C1. At the end of the sampling time, the stored minimum voltage is passed via transistors Q6, Q7 to an amplifier A1 where it is compared with a reference voltage across R14. If the sample is too small, a signal is passed via diode D64 to delay the next triggering pulse for the appropriate rectifiers. A signal from a lightemitting diode LED1 provides an inhibit signal to another part of the control system. A switch S1 cuts out the minimum voltage control circuit during servicing. After any delay in the timing of triggering pulses, capacitor C1 is gradually recharged negatively via transistor Q6 and resistor R12.
Patent GB-1271027-A (GB)
Title: Pyrrolidine-anilines, their diazo derivatives and their use as diazotype materials
Inventor: ISLAM RAFIQUL
IPC: G03C1/54
Filed: 1969-07-23
Abstract: 1,271,027. Pyrrolidine-anilines and their diazo derivatives; pyrrolidino nitrobenzenes. GAF CORP. 14 July, 1970 [23 July, 1969], No. 37095/69. Addition to 1,053,941. Heading C2C. [Also in Division G2] The invention comprises amines of the general formula and their diazonium derivatives of formula in which R is substituted or unsubstituted alkyl, hydroxyalkyl, aryl or aralkyl, Y is an optionally substituted radical in which Z is a direct linkage, a divalent atom or a divalent radical and X is an anion. Z may be for example, a direct linkage, -O- or -NH 2  and X is preferably a chloride or a sulphate ion or a complex anion such as the zinc chloride double salt ion. The amines of the above formula may be prepared by condensing a compound of the general formula with an amine of formula which may carry substituents to give a compound of formula and reducing this compound to the amine. Diazonium compounds may be prepared from these amines by known methods. The starting chlor substituted nitro compound in which R is CH 3  may be prepared by nitrating 2-chloro-4- (N - pyrrolid - 2<SP>1 </SP>- one - yl) - anisole which may be obtained by a condensation reaction between butyro lactone and 2-chloro-4-amino anisole. The preparation of 2-(N-pyrrolid-2<SP>1</SP>-one-yl)-4- piperidino-5-methoxyaniline and its diazonium compound in the form of a complex salt of zinc chloride, tin chloride and boro-fluoride is described. Reference is also made to the preparation of 2-(N-pyrrolid-2<SP>1</SP>-one-yl)-4-morpholino-5- methoxy - nitrobenzene, 2 - (N - pyrrolid - 2<SP>1</SP>- one - yl) - 4 - pyrrolidino - 5 - methoxy nitrobenzene and 2 - (N - pyrrolid - 2<SP>1</SP> - one - yl) - 4- (N - methyl - piperazino) - 5 - methoxy nitrobenzene and their conversion to amines and their diazonium salts.
Patent GB-368820-A (GB)
Title: Improvements in or relating to the heat treatment of coal and like carbonaceous material
IPC: C10B7/14
Filed: 1930-12-09
Abstract: 368,820. Destructive distillation of coal &c. EBBW VALE STEEL, IRON, & COAL CO., Ltd. and THICKINS, D., 13, Park Road, both in Ebbw Vale, Monmouthshire. Dec. 9, 1930, No. 37139. [Class 55 (i).] A dense coke of high calorific value is obtained by carbonizing coal in an externally heated closed container in which the coal is carbonized under gaseous pressure, the distillates passing through the outer parts of the charge on which the cracked hydrocarbons are deposited, and the fixed gases passing out through vents in the container. The coal may be packed into the container under pressure. Each container may comprise two channel-shaped portions 1, 2 secured together by interlocking lugs 1a, 2a, which are caused to engage by relative endwise movement of the portions. A door 3, moving in vertical guides 3a, carries a horizontal plate 3b to which one leaf 4 of a hinge is slidingly connected, the other leaf being attached to the lower part of the portion 2 of the fuel container. When the portion 2 is in position, and the door dropped, stops 3d carried by the door prevent movement of the lower portion and secure it in position. The distillates escape through the joints between the portions, and are collected from the heating chamber surrounding the apparatus. The form shown in Fig. 4 consists of a number of pairs of channel-shaped portions secured together by clips 1x, and hinged together at 5 to form a continuous container which is supported by wire ropes 6 from a chain 7 for moving them through the heating chamber. In another form, the containers are placed end to end, are connected by spigot and socket joints, and are propelled through the oven on wheels by pressure applied when charging with coal.
Patent GB-344070-A (GB)
Title: Improvements in or relating to the stiffening of boot or shoe upper parts
IPC: A43B23/08
Filed: 1929-12-05
Abstract: 344,070. Boot &c. stiffeners. BRITISH UNITED SHOE MACHINERY CO., Ltd., RICKS, E. W., and LUND, W. J., Union Works, Belgrave Road, Leicester. Dec. 5, 1929, No. 37278. [Class 17 (ii).] Thermoplastic shoe stiffeners which are supple and will not change shape under abnormal heat conditions in wear comprise a fibrous base in one or more layers bonded together by a rubbery bond and one or both of which are stiffened with a water soluble or non-thermoplastic stiffening agent and with a thermoplastic stiffening material. In one form, fibrous sheet material from which stiffeners may be cut is formed by binding a thin closely woven cotton fabric, such as calico, with a sheet of wool or wool cotton felt of usual kind employed but thinner and of poorer grade, in the manner described at lines 6-18, page 11, of Specification 277,719, [Class 17 (ii), Boots and shoes, Construction of]. Rubbery adhesive as described in Specification 318,289, [Class 17 (ii), Boots and shoes, Construction of], may be used if desired. One or both layers, preferably both, is then stiffened with non-thermoplastic material, such as size or a compound of glue and rubber latex, and afterwards dried. The calico or like layer may, if desired, be so charged as to lose capacity for absorbing thermoplastic material. The bonded fabric is then stiffened with thermoplastic material, such as a molten mixture of colophony and carnauba wax. In another form, a single layer of wool or wool cotton puff felt of usual character is stiffened by an aqueous stiffening solution of the character above described, or by a compound of fish glue and rubber latex, and the stiffened but still highly absorbent felt is then impregnated with thermoplastic stiffening material as before. Specification 236,600, [Class 17 (ii), Boots and shoes, Construction of], also is referred to.
Patent GB-1097619-A (GB)
Title: Method of purifying condensate water
IPC: C07C15/46
Filed: 1966-08-19
Abstract: In a process for catalytically dehydrogenating ethyl benzene to styrene using steam as a diluent, the crude condensate water from the reaction, after separation of product styrene and unreacted ethyl benzene, is freed of styrene contaminant by adding thereto a small quantity of ethyl benzene, which dissolves the styrene, and then separating the ethyl benzene/styrene solution from the water, e.g. by steam stripping or by separation in a liquid/liquid extraction system followed by steam stripping of remaining traces of ethyl benzene/styrene from the water phase. The ethyl benzene used is preferably a side-steam from the incoming process feed, and the ethyl benzene/styrene recovered may be recycled either to the process feed or to the separation of crude condensate from the reaction products. The cleaned condensate water may be recycled for further steam production within the system.ALSO:Styrene-contaminated water, obtained as a condensate in a process for dehydrogenating ethyl benzene to styrene in the presence of steam diluent, is freed of styrene by adding thereto a small quantity of ethyl benzene, which dissolves the styrene, and then separating the ethyl benzene/styrene solution from the water, e.g. by steam stripping or by separation in a liquid/liquid extraction system followed by steam stripping of remaining traces of ethyl benzene/styrene from the water phase.
Patent GB-373463-A (GB)
Abstract: 373,463. Loose-leaf binders. MOORE, C. H., 12, St. Bride Street, London. July 2, 1931, No. 19075. [Class 146 (i).] A loose-leaf binder has an expansible back structure comprising parts 20, 40 relatively slidable to a limited extent for the addition or removal of leaves, the relative movement being prevented when the binding posts 81 are locked in their normal position. Guides for the part 40 are formed on the part 20 by means of a back-plate 22 and side-strips 23 riveted to the part 20. Flanges 25, 45 on the parts 20, 40 have blocks 27, 47 secured to them by channel-shaped plates 26, 46 so as to form the usual clamping-bars carrying the hinge lugs 28, 48 for the covers 29, 49. Holes 31 are provided in the plates 26, 46 for the posts 81 and a spring-pressed locking-bar 60, Fig. 4, operated by a latch 63 is mounted in the bar 26 to engage notches 83 in the ends of the posts. The posts are connected at one end by a strip 80 which is accommodated in a recess 51 in the parts 45, 47 when the notches 83 are engaged by the bar 60. A spring 85 on the inner face of the strip 80 causes the strip 80 and posts 81 to be partially withdrawn automatically when the bar 60 is released. Pins 53, Fig. 1, on the block 47 engage grooves 84 in the posts 81 toprevent complete withdrawal of the posts. Stamped-out tongues 24 on the strips 23 engage slots 41 in the part 40 to limit the movement of the parts 20, 40 of the back. The bar 60 may be key-operated. Further, guides for aligning the leaves may be provided as described in Specification 241,282, [Class 146 (i), Filing paper &c. sheets], and the binder may, in use, be supported in a tray as described in Specification 373,464 having means for releasing the posts 81 automatically.
Patent GB-1080048-A (GB)
Title: Process for the manufacture of expanded materials from organopolysiloxanes
IPC: C08J9/02
Filed: 1965-09-01
Abstract: Expanded materials are made from organopolysiloxanes by mixing together at room temperature an organopolysiloxane that is free from silicon-bonded hydrogen and is comprised of units of the general formula <FORM:1080048/C3/1> in which R represents a methyl or phenyl radical, at least 90% of the radicals R being methyl radicals, R1 represents an alkyl radical having 1 to 4 carbon atoms, x, y and z each represents 0, 1, 2, or 3, the sum of x+y+z being not greater than 3; the mean value of x is 0.9 to 1.3, the mean value of y is 0.01 to 0.20 and the mean value of z is 0.02 to 0.20, an organopolysiloxane containing silicon-bonded hydrogen atoms, a monomeric or polymeric compound containing non-acidic reactive hydroxyl groups and a quaternary ammonium compound or a carboxylic acid salt of a heavy metal as catalyst, and allowing the mixture to foam.  The organopolysiloxane containing silicon-bonded hydrogen also contains methyl and/or phenyl radicals, the numbers of these being such that the number of silicon-bonded phenyl radicals does not exceed 10% of the total number of silicon-carbon bonded organic radicals present in the composition.  The organopolysiloxane free from silicon-bonded hydrogen, which preferably has a viscosity less than 1000 cSt at 25 DEG  C., may also act as the compound containing hydroxyl groups, i.e. there need be no additional hydroxyl-containing compound.  If such a separate compound is used, it may be a low molecular weight silanol, water, an alcohol which may contain halogen or nitro groups, an alkanolamine, a hydroxycarboxylic acid ester, a hydroxyl-containing polyester or a cyanhydrin.  The foaming composition may also contain 0.5 to 10% by weight of a linear or cyclic organosiloxane oil which contains methyl, vinyl or phenyl radicals, and has a viscosity in the range 0.65 to 300 cSt at 25 DEG C.  The use of such an oil imparts increased mechanical strength and more uniform density to the product.  The composition may also contain fillers (up to 20% by weight), stabilizers and/or additional curing catalysts.
Patent GB-954813-A (GB)
Title: Improvements in or relating to under-garments
IPC: A41C1/02
Filed: 1961-10-18
Abstract: 954,813. Garments. G. A. HUTCHESON. Oct. 18, 1962 [Oct. 18, 1961], No. 37427/61. Heading A3V. Trunks, briefs, elastic belts, corsets or similar garments are reinforced by at least one one-way or two-way stretch M-shaped portion 1 which may be incorporated as part of the garment or attached as an additional piece. The M-shaped portion may alternatively be formed by stitching. Application No. 39466/62 is referred to.
Patent GB-792550-A (GB)
Title: An improved tool for cutting fibro-cement sheets or like material
IPC: B28D1/22
Filed: 1955-12-30
Abstract: 792,550. Cutting-pliers; trimming slates. IGGULDEN; W. A., IGGULDEN, W. P., and IGGULDEN, J. M., [trading as BENTLEY MANUFACTURING CO.]. Dec. 30, 1955, No. 37479/55. Classes 61 and 124. A tool for cutting fibro-cement sheets and like material comprises a body member 1 having attached thereto a handle 2, a cutting blade 9 slidably mounted in the body, a fixed jaw 3 supported by the body and having an opentopped slot 11 through which the cutting blade operates to shear a narrow strip from a sheet engaged in the mouth 7, and an operating handle 13 pivoted to the body and connected through pivoted links to the end of the blade. The handle 13 has a pivot pin 15 on the end thereof connected by a pair of links 16 to a pivot pin 17 on the end of the cutting blade 9, the pivot pins being slidable in slots 18 in the body member. The body member comprises two side plates 4 spaced apart by spacers which form a slideway for the blade. A pointed piercing blade 19 is provided on the end of the handle 2 for use in forming an initial hole in the sheet, a sliding cover 21 being provided for the blade when not in use.
Patent GB-324484-A (GB)
Title: Manufacture of bromine-substituted aryl-1-thioglycollic acids
Filed: 1928-12-20
Abstract: 324,484. Imray, O. Y., (I. G. Farbenindustrie Akt.-Ges.). Dec. 20, 1928. Brominated 2-carboxyamide and brominated 2- cyano-benzene-1-thioglycollic acids and substitution derivatives thereof are obtained by treating the parent compounds with bromine in the presence of a diluent at a temperature below 30‹ C., with or without a halogen carrying catalyst. In examples (1) 3-methyl-5-chlorbenzene-1-thioglycollic-2-carboxyamide is treated with bromine in the presence of sulphuric acid, both with and without iodine as a catalyst the corresponding 4- brom compound being obtained : (2) 2-cyano-3- methyl-5-chlorbenzene-1-thioglycollic acid is similarly brominated both with and without using mercury as a catalyst, the corresponding 4-brom derivative being obtained : (3) 2-cyano-5-methoxybenzene-1-thioglycollic acid dissolved in sulphuric acid is treated with bromine. Glacial acetic acid, chlorinated hydrocarbons and water are also mentioned as diluents. 2-Cyano-5-methoxyzenzene-1-thioglycollic acid is prepared from p-anisidine by forming the thiazthionium compound by means of sulphur chloride, treating with caustic alkali to obtain the 1-mercapto-2-amino-5-methoxybenzene, and condensing with chloracetic acid to give the corresponding o-aminothioglycollic acid, which, on diazotizing and treating with cuprous cyanide, gives 2-cyano-5-methoxybenzene 1-thioglycollic acid.
Patent GB-632189-A (GB)
Title: Improvements in or relating to devices for interconnecting plates, tubes or like members
IPC: E04G7/24
Filed: 1946-12-23
Abstract: 632,189. Wedge-actuated fastenings. COX, E. W. Dec. 23, 1946, No. 37660. [Class 44] [Also in Group XXVIII] A quickly detachable fastening for securing together flat or curved plates or tubular members comprises complementary elements 10, 11 securable by lugs 13 to the respective plate members and together forming a projection 12, Fig. 2, having a three dimensional taper which coacts with a clamping member 14 provided with a corresponding three dimensional tapered recess. The elements 10, 11 may be of curved shape, as for example when formed on gutter pipes. In a modification, Fig. 5, for securing rods or tubes in alignment the two elements have semicircular recesses 17, 21 in which the pipes fit and are respectively provided with complementary three dimensional tapered grooves and projections 19, 22. In another modification, Fig. 7, a T- junction for tubes comprises part circular section limb portions 26, 28 having three dimensional tapering grooves 29 which receive corresponding projections on clamping pieces 31. In a modification of this form the members 31 are grooved and enclose the edges of the socket members on which the corresponding projections' are formed. In a further modification, Fig. 10, for securing angularly disposed rods &c. at their point of crossing, one rod 47 is carried in an open-sided slot 44 in a member 40 which has parallel lateral branches 42 between which the other rod passes, clamping be effected by a member 45 having three dimensional tapered projections 43, 46 engaging corresponding grooves in the branches 42.