baber/WOPTO huggingface dataset:
Patent GB-1492474-A (GB)
Title: Method for preparing a composite material of a polyparabanic acid and a substrate
IPC: H05K1/05
Filed: 1975-04-01
Abstract: 1492474 Preparing polyparabanic acid composites TOA NENRYO KOGYO KK 1 April 1975 [10 April 1974] 13325/75 Heading B5N A composite material of a polyparabanic acid film and a substrate for use in flexible printed circuits is made by preparing a self-supporting film of said polyparabanic acid by solution casting on a support and removal of the incompletely dried film therefrom, the film having a residual solvent content, placing the film on the substrate and subjecting the composite to thermocompression bonding so that the residual solvent content of the composite is 0À1% by weight or less. The substrate may comprise copper, aluminium, tin or stainless steel, glass cloth, or a film, paper, woven or unwoven cloth or fibres of polyimide, polyamide, polyamideimide or polyparabanic acid or mixtures thereof. The polyparabanic acid (PPA) may be a polymer having repeating units of formula where Ar is arylene, especially diphenylmethane-4,4<SP>1</SP>-diyl or diphenylether-4,4<SP>1</SP>-diyl. A solvent for PPA, such as dimethylformamide, N-methyl pyrrolidone, dimethyl sulphoxide or dimethylacetamide, or a solution of PPA, may be coated on to the film or substrate to be bonded.
Patent GB-599546-A (GB)
Title: Improvements in or relating to coating compositions
IPC: C09D191/00
Filed: 1943-08-17
Abstract: Varnishes are prepared by commingling a drying oil or a drying oil fatty acid modified alkyd resin with a resinous esterification product of pentaerythritol, a polypentaerythritol or mixtures of pentaerythritol and polypentaerythritols, a rosin acid, and an alpha-beta unsaturated polybasic acid or anhydride such as maleic anhydride, the amount of such acid being equivalent to an amount of maleic anhydride which is no more than 9 per cent of the weight of rosin acid.  The commingling may be carried out by heating the oil or alkyd resin with the pentaerythritol resin, or by mixing in solution. The esterification may be carried out according to the process of Specification 592,167.  Heating the varnish ingredients may be carried out at 250 DEG -320 DEG  C.  Drying oils specified are linseed, dehydrated castor, tung, oiticaca, perilla, poppyseed, sunflower, soybean, and fish oils, or mixtures thereof, and the soft-drying oils are preferably prebodied.  Rosin acids specified are wood rosin, gum rosin, disproportionated, heat-treated, hydrogenated, dehydrogenated, or polymerized rosin. Fumaric or itaconic acids or anhydrides may replace maleic acid. The varnishes may contain dyes, pigments, other resins, driers, and plasticizers.  In examples 1-10, a resin prepared from wood rosin, maleic anhydride and pentaerythritol is heated with pre-bodied linseed oil.  In example 11, dipentaerythritol is used in place of pentaerythritol, in example 12 polymerized wood rosin is used in place of wood rosin, and in example 13 a mixture of dehydrated castor oil and tung oil and in 14 a resin prepared from glycerol, phthalic anhydride, and linseed fatty acids are used in place of linseed oil.  Cobalt, lead, and calcium naphthenate driers are added to the varnish in some cases.
Patent GB-312260-A (GB)
Title: Improvements in or relating to machines for slicing and coating bread
IPC: B26D7/34
Filed: 1928-02-22
Abstract: 312,260. Harboro' Machinery Co., Ltd., and Klarner, A. Feb. 22, 1928. Divided on 312,214. Coating bakers' goods.-In a machine for slicing and coating bread, the spreading, e.g. buttering, apparatus includes an oscillating kneader 69 operating within a sleeve valve or shutter 51 which also oscillates to open and close the orifice 47, 52 through which the butter is extruded. The sleeve 51 has a lug 55 on its lower end carrying rollers 54, 67. The sleeve is oscillated in one direction by a lever 53 having a roller-carrying spring-controlled pivoted trip end 57 which engages a cam member 56 and bears against the roller 54 of the sleeve 51. Adjustment of the swing of the lever 53 and consequently of the sleeve 51 is effected by a handle 64 having a cam slot 63 which is engaged by a pin 62 on a slide 61 on which the lever 53 is pivoted at 60. The lever is normally positioned against a stop 68, and is returned by the engagement of a stop 65 on an oscillating toothed quadrant 66 with the roller 67. The quadrant operates the kneader 69 and is oscillated by the lever 66a thereon engaging cams 73, 74. The quadrant 66 is geared with a pinion 72 on the lower end of the kneader. The kneader 69 co-operates with a shoulder 70 on the sleeve 51, the butter being squeezed between them through the orifices 47, 52. The butter is compressed in the container by a piston comprising a disc having perforations 82 which are covered during the advance of the plunger by disc 81 which is loosely mounted on the end f a rod 80, passing through the forcing screw 77, and having a limited longitudinal movement thereon. Holes 83 in the container behind @e piston are normally closed by a hit and miss valve 84. With this arrangement, when the plunger 75 is retracted, the back disc of the plunger moves away from the disc 81 and air passes through the perforations 82 to overcome the suction effect. A spring 76 is positioned between the screw 77 and the plunger, and the screw is moved forward by a rotary nut member 78 having gear teeth 86 meshing with a pinion on a shaft 88 revolved intermittently by a ratchet and pawl mechanism, the pawl being connected by a rod with a crank pin on a rotary part of the machine. A bell 103 contacts with the nut 78 and gives warning that the container 45 needs replenishing. Means may be associated with the rod 80 to lift the pawl from the ratchet wheel to stop the butter feed. The effective height of the slot 47 is adjusted by -a vertical slider 104 which is graduated and is clamped by a screw 105. Specification 195,182 is referred to.
Patent GB-1353664-A (GB)
Title: Photographic material containing dis-azo dyestuffs for use in the silver-dye bleach process
IPC: G03C1/83
Filed: 1971-05-05
Abstract: 1353664 Amino or nitro aromatic compounds CIBA-GEIGY AG 5 May 1971 [5 May 1970] 13393/71 Heading C2C [Also in Divisions C4 and G2] 1 - (2<SP>1</SP> - Chloro - 51 - aminobenzoylbenzene)-4- carboxylic acid -N-(4<SP>11</SP>-amino-3<SP>11</SP>-sulphophenyl)-amide is prepared by condensing 2-chloro- 5-nitrobenzoyl chloride with toluene in the presence of AlCl 3  to give 1-(21-chloro-5<SP>1</SP>-nitrobenzoyl)-4-methylbenzene, which is oxidized with CrO 3  to give 4-(2<SP>1</SP>-chloro-5<SP>1</SP>-nitrobenzoyl)- benzoic acid which is treated with SOCl 2  to give 4-(2<SP>1</SP>-chloro-5<SP>1</SP>-nitro-benzoyl)-benzoyl chloride which is reacted with p-phenylenediamine to give 1-(2<SP>1</SP>-chloro-5<SP>1</SP>-nitrobenzoylbenzene)-4-carboxylic acid -N-(3<SP>11</SP>-sulpho-4<SP>11</SP>-aminophenyl)- amide which is finally reduced with FeSO 4 /NH 3 . The following sequences of compounds are prepared in a similar manner: 1-(2<SP>1</SP>-chloro-4<SP>1</SP>-aminobenzoyl-benzene)-4-carboxylic acid -N-(4<SP>11</SP>- amino-3<SP>11</SP>-sulphophenyl)-amide, 1-(2<SP>1</SP>-chloro- 4<SP>1</SP>-nitrobenzoyl)-4-methylbenzene, 4-(2<SP>1</SP>-chloro- 41-nitrobenzoyl)-benzoyl chloride and 1-(2<SP>1</SP>- chloro - 41 - nitrobenzoylbenzene) - 4 - carboxylic acid -N-(4<SP>11</SP>-amino-3<SP>11</SP>-sulphophenyl)-amide: 1-(4<SP>1</SP>-aminobenzoylbenzene)-4-carboxylic acid- N-(3<SP>11</SP>-amino-4<SP>11</SP>-sulphophenyl)-amide, 1-(41- nitrobenzoyl)-4-methylbenzene, 4-(41-nitrobenzoyl)-benzoyl chloride and 1-(41-nitrobenzoylbenzene)-4-carboxylic acid-N-(3<SP>11</SP>-amino- 4<SP>11</SP>-sulphophenyl)-amide. Hydroquinone - di - (4 - amino - 2 - sulphophenyl)ether is prepared by condensing 1- chloro-2-sulpho-4-nitrobenzene with hydroquinone to give hydroquinone-di-(4-nitro-2-sulphophenyl)ether and reducing this with Fe/HGl. Hydroquinone - di-(2-amino- or -nitro - 4 - sul phophenyl)ether, 4,4<SP>1</SP>-di-(4<SP>11</SP>-amino- or -nitro-2<SP>11</SP> sulphophenoxy)-diphenylsulphone and 4,4<SP>1</SP>-di- (4<SP>11</SP>-amino- or -nitro-2<SP>11</SP>-sulphophenyl)-diphenyl are similarly prepared. 2 - [4<SP>1</SP> - (2<SP>11</SP> - chloro - 511 - aminobenzoyl)- benzoylamino] - 6 - aminonaphthalene - 4,8- disulphonic acid is prepared by condensing 2- amino - 6 - nitro - naphthalene - 4,8 - disulphonic acid with 4 - (2<SP>1</SP>-chloro-5<SP>1</SP>-nitrobenzoyl)- benzoyl chloride to give 2-[4<SP>1</SP>-(2<SP>11</SP>-chloro-5<SP>11</SP>- nitrobenzoyl) - benzoylamino] - 6 - nitronaphthalene-4,8-disulphonic acid which is reduced with FeSO 4 /NH 3 . 4,4<SP>1</SP> - di - (311 - Amino - 4<SP>11</SP> - chlorobenzoyl)- diphenyl is prepared by condensing 4-chloro-3- nitrobenzoyl chloride with diphenyl in the presence of AlCl 3  to give 4,4<SP>1</SP>-di-(3<SP>11</SP>-nitro-4<SP>11</SP>- chlorobenzoyl)-diphenyl which is reduced with Sn/HCl. 4 - Amino - 4<SP>1</SP> - nitro - diphenylamine - 3,31- disulphonio acid is prepared by condensing pphenylenediamine sulphonic acid with 2-chloro- 5-nitrobenzene sulphonic acid.
Patent GB-1373194-A (GB)
Title: Method of manufacturing steel
IPC: C21C7/00
Filed: 1973-03-20
Abstract: 1373194 Dephosphorizing steel ACIERIES REUNIES DE BURBACH-EICH-DUDELANGE SOC ANON 20 March 1973 [20 March 1972] 13395/73 Heading C7D Steel is refined by tapping a greater portion of a steel melt into a vessel, supplying a dephosphorizing agent or agents to the vessel before or during tapping, tapping being stopped at the latest when 90% of the melt has been tapped into the vessel, adding a deoxidizing agent or agents (e.g. ferromanganese or aluminium) to the vessel and homogenizing the steel in the vessel by tapping the remainder of the steel melt into the vessel. The bath of steel in the vessel may be allowed to stand for 1-3 minutes after supply the deoxidizing agent(s) prior to the addition of the remainder of the melt which may comprise 10-30% of the total melt. Carbon may be supplied to the vessel before or during the initial tapping operation and the final phosphorus content of the melt may be controlled by adjusting theproportion of the melt tapped initially and the amount of dephosphorizing agent(s) added.
Patent GB-1423968-A (GB)
Title: Electro-magnetically actuated two-way valve
IPC: F16K31/06
Filed: 1974-03-26
Abstract: 1423968 Valves ROBERT BOSCH GmbH 26 March 1974 [28 March 1973] 13443/74 Heading F2V An electromagnetically operated valve includes a valve unit, comprising a sleeve 22 and a valve member 21, which can be fitted in alternative reversed positions in a valve housing 11 to provide a valve which is either normally open or alternatively normally closed. The electromagnetic actuator 12 is a separate unit and its armature 51 acts on the valve member 21  via a tappet 49. The valve member, which is substantially pressure balanced, comprises a closure member 41, which coacts with a seat 35 on the sleeve 22, and a balancing piston 42. A spring 46 engages the end of the valve member remote from the actuator. The valve is said to have a response time of a few milliseconds and a stroke of a fraction of a millimeter, the latter being determined by the abutment of the head of the valve member on an intermediate plate 28 in the arrangement shown in Fig. 1 and in the reversed arrangement (not shown) on a spacer ring 32. In an alternative embodiment, Fig. 3 (not shown), the spacer ring is omitted and the sleeve abuts directly on a shoulder in the housing and the loading spring (83) is guided by a pin (82) extending from a stopper (81) screwed into the end of the housing. This pin acts also as the stroke limiter when the sleeve and valve member are arranged to provide a normally closed valve.
Patent GB-1453212-A (GB)
Title: Baths for electrodeposition of gold and old alloys
IPC: C25D3/62
Filed: 1974-03-26
Abstract: 1453212 Gold electro-plating TECHNIC Inc 26 March 1974 [26 March 1973] 13462/74 Heading C7B  Gold is electro-plated from a bath which contains as brightener a mono- or polyimine or an adduct thereof. Conventional cyanide and non- cyanide (e.g. Na-Au-sulphite complex) baths are specified which may contain alloying metals such as Ni or Co (e.g. as a salt or chelate), Ag (e.g. as a cyanide complex), Fe, Zn, Cd, or In. Organic or inorganic acids may also be present. Exemplified additives include glycine, 7, 8-dihydroxynaphthalene 3, 6-disulphonic acid, and the K salt of HOOCCH 2 -N-(CH 2 P(o)(OH) 2 ) 2 . Lists of imine compounds are given including polyethyleneimine, substituted polyethylene imines, polypropyleneimine, aziridine and substituted aziridines, and aziridine adducts which are N-2-aminoethyl substituted (poly) alkylene amines. Bright deposits are obtainable with wider condition variations than usually possible, e.g. pH 1-14 and c.d. of 0.5-100 ASF using 0.005-100g/l of the imine compound.
Patent GB-134708-A (GB)
IPC: F41A23/40
Abstract: 134,708. Schneider et Cie. April 24, 1918, [Convention date]. Sides, floors, and framing.-Consists in forming the frames of rail carriages for large calibre guns of a girder-like member of reinforced cement or concrete, in which is embedded the various elements required for mounting the gun on the frame, for supporting the frame on wheeled axles or bogies, and for anchoring the frame to a platform for firing. The invention is shown applied to a railway-vehicle gun-mount, in which the reinforced cement frame A, Figs. 1 and 3, has embedded therein (1) elements B for supporting the frame on bogies C with or without the interposition of bearing springs, (2) direct or indirect supports D for the gun barrel, cradle or pedestal E, and (3) elements such as the nuts I or screws J of a series of screw-jacks carrying shoes K for enabling the frame to bear during firing upon a wooden platform L, M, which rests upon the ordinary sleepers of the track. For providing ready access to the elements B, and also, if necessary, to the screw-jack elements I, J, passages b closed by lids b<1> are formed in the frame A. Between the bogie pivots C' and the elements B, elastic devices, such as rubber springs T, Fig. 8, may be inserted to allow the frame to slide relatively to its supports to a limited extent during firing. Various accessory elements may also be embedded in the cement, such as (1) one member 0 of the recoil brake F, (2) a bracket V, Fig. 6, for a crane for handling ammunition, (3) a rolling track W for a loading carriage w, or (4) spring boxes u to receive rollers U to engage a track P on the bogie C.
Patent GB-165626-A (GB)
Title: Improvements in and relating to electric motor controlling switchgear
IPC: H01H73/38
Filed: 1920-05-17
Abstract: 165,626. Solomon, M., Garrard, C. C., and Wilson, W. May 17, 1920. Controllers, interlocking.-In a motor controller, the main or reversing switch C, Fig. 1, is interlocked with electromagnetic accelerating contactors F, J, by means of a cam C2, Fig. 1<a>, on the switch spindle C1 interacting with a spring tailpiece attached to the electromagnet armature B1, so that the armature is mechanically held on when the switch is in the neutral or open position, and is mechanically freed when the switch is closed either on the forward or reverse side. After being mechanically freed, the armature will fall when the current in the electromagnet D is sufficiently reduced. The effect is to allow the first contactor F to close, and also to close a subsidiary contactor I which puts into action the second contactor J. In a modified construction the cam on the switch spindle acts on a cranked lever which removes a support from the electromagnet armature.
Patent GB-405848-A (GB)
Title: Improved support for calendar or other detachable leaf blocks
IPC: B42D5/00
Filed: 1933-05-09
Abstract: 405,848. Stands. GUNSTON, GREEN, & SIMSON, Ltd., and GUNSTON, A. J. D., 19, Underwood Street, Hoxton, London. May 9, 1933, No. 13502. [Class 52 (v).] A support for a calendar, memorandum pad, or like block f of leaves comprises a base a and vertical portions c with grooves e for the slidable reception of the edges of the back h of the pad ; the rear parts of the parts c are connected by an inclined back d.
Patent GB-932413-A (GB)
Title: Sighting system
IPC: F41G1/38
Filed: 1962-04-09
Abstract: 932,413. Optical sighting devices. W. S. HINMAN, H. W. STRAUB, and W. G. G. FINCH. April 9, 1962 [May 9, 1961], No. 13632/62. Class 97 (1). [Also in Group XXI] A gun sight comprises front and rear sights 17, 18, fixed to the barrel 15, a telescope 11 through which the target is viewed, also mounted on the barrel, and optical means 12 fixed to the telescope 11 adapted to project the images of the front and rear sights 17, 18 into the field of the target as viewed in the telescope 11. In a modification, Fig. 4 (not shown), separate optical means 12, 34 are provided, one each for the rear sight 18 and front sight 17. Providing the sights 17, 18 are accurately aligned with the barrel bore and the optical axes of the tubes 11 and 12 are aligned, there is no necessity for accurate alignment of the telescope 11 with the barrel bore as is required in conventional telescopic sights.
Patent GB-150415-A (GB)
Title: Improvements in and relating to the amplification of electric currents
IPC: H04B1/16
Filed: 1919-05-29
Abstract: 150,415. British Thomson - Houston Co., (General Electric Co.). May 29,1919. Converting pulsating currents into steady continuous currents.-In a cascade arrangement of thermionic amplifying-valves, filters are provided in the anode supply circuits to minimize low-frequency disturbances. The anode circuits of the valves 3, 4, 5, 6 are supplied by a common source 7, which may be a direct-current dynamo. The fluctuations of the anode potential supplied to the last valve 6 are reduced by a filter consisting of resistances 8, 9 and capacities 10, 11, and for the earlier valves of the series, where smoothing is still more necessary, the smoothing is carried further by additional filters 12, 15, &c., which also serve to prevent the spontaneous setting-up of lowfrequency currents between the valves. The valve anodes are connected to the filter circuits through resistances 23, 24, 25 and (in the case of the last valve) through the primary 26 of a transformer having the receiver 28 in its secondary circuit 27.
Patent GB-220984-A (GB)
Title: An improved mixing valve
IPC: F16K31/52
Filed: 1923-05-23
Abstract: 220,984. Hadwen, C. M., and Ferguson Superheaters, Ltd. May 23, 1923. Mixing-valves; fluids, regulating volume of flow of.-A valve and a flow regulator, the latter incapable of complete closure, are rigidly connected together, and are operated by a cam or eccentric to control the proportions of two fluids which are admitted through separate inlets and discharged through a common outlet. The inlet passages 2, 3, which may convey superheated and saturated steam, are in axial alignment, are provided with liners 5, 6, secured by pins 12, 13, and are controlled by a valve 20 and flow regulator 21. These are connected together by a rectangular link 22, enclosing an eccentric 26 mounted on a spindle 25 having an external handle 30. The valve 20 and flow regulator 21 are thus moved simultaneously to control or close the inlet 2, and control the inlet 3 without closing it. The mixed fluids are discharged through the common outlet 4. Specifications 4588/82 and 163,313, [Class 7 (iii), Internal-combustion engines, Carburetting-apparatus &c. for], are referred to.
Patent GB-461342-A (GB)
Title: Improvements in or relating to apparatus for conditioning or drying paper
IPC: D21F5/00
Filed: 1935-05-09
Abstract: 461,342. Conditioning paper webs. HALL & KAY, Ltd., KAY, H., HALL, S., and MYERS, A. May 9, 1935, No. 13646. [Class 96] [Also in Group XIII] In apparatus for conditioning paper, the web is passed between a pair of elongated boxes or hollow walls 8, and during its passage is acted upon by streams of air or gas of appro priate temperature anc humidity, which issue from ducts 14 at the bottom of the boxes and are withdrawn, after being in contact with the web through ducts 15 arranged at the top of the boxes in such a manner that the streams come in contact with the inner surfaces of the walls of the boxes. The interior of each box is divided into two compartments 11 and 12 by a partition 10, the gases being supplied to the compartment 12 and withdrawn after use through the compartment 11. Baffles 19 may be provided in the latter compartment, to assist in maintaining both the inside and outside surfaces of the walls of the box at the same temperature, so as to avoid condensation. A number of boxes may be arranged in a series, the web being guided, by means of rollers 6 and 7, in a zigzag path between the boxes.
Patent GB-594650-A (GB)
Title: Electron discharge devices and associated circuits
IPC: H03B5/18
Filed: 1944-07-17
Abstract: 594,650. Valve generators. MARCONI'S WIRELESS TELEGRAPH CO., Ltd.July 17, 1944, No. 13659. Convention date, Oct. 17,. 1942. [Classes 39 (i), 40 (iii) and 40 (v)] A push-pull generator for frequencies of the order of 1000 megacycles comprises a pair of coaxial rings 18, 19 in which two triodes are mounted with their grids connected to the inner and their anodes to the outer ring. Four bridging capacities 30 . . . 33 for tuning are carried by a pair of arms controlled through a gear-box by a single knob in such a way that the symmetry of the arrangement is always maintained. The heater wires pass through a pair of tubular cathode leads which are tuned by a piston 28. If the shielding cover 24 is removed, the apparatus radiates a beam. In a modification, Fig. 6, a generator, which is similar to that just described except that the cathode leads are housed in individual tunable projections 53, 54, is coupled via these leads and coupling loops 74, 75 with an amplifier of similar construction.
Patent GB-290290-A (GB)
IPC: H04R1/16
Filed: 1928-01-06
Abstract: 290,290. Electrical Research Products, Inc., (Assignees of Harrison, H. C.). May 13, 1927, [Convention date]. Magnetic instruments; diaphragms. - An electromagnetic sound recorder comprises a flexible, preferably magnetic, diaphragm 13 clamped over the mouth of a chamber 5 which houses the electromagnet system and is preferably filled with viscous s material 12. An armature 15, secured to the diaphragm, is formed with a pair of narrow arms 16, 17 extending substantially the length of the diameter of the unrestrained portion of the diaphragm and with a stylus supporting lug 20. The arms 16, 17, which provide, with the diaphragm, a rocliing -support for the armature, are sufficiently stiff to prevent rotational movement of the armature in any direction except around an axis parallel to the arms. Specifications 290,264 and 290,559 are referred to.