baber/WOPTO huggingface dataset:
Patent GB-303494-A (GB)
Title: Improvements in and relating to the production of concentrated acetic acid
IPC: C07C51/48
Filed: 1928-10-10
Abstract: 303,494. Suida, H. Jan. 5, 1928, [Convention date]. Acetic acid is extracted from its aqueous solutions by a mixture of a base which is not readily acetylated, such as quinoline and its homologues, dimethyl aniline and the like and a hydrocarbon such as anthracene oil, heavy oil, paraffin oil, spindle oil, hydrogenated naphthalene, solvent naphtha, gas, oil, solar oil, heavy benzine, oil from the destructive hydrogenation of coal, and pentachlorethane. It is important that all ingre. dients of the solvent should have boiling points above 150‹ C. as otherwise the final separation of the acid from the extract would be difficult. Examples describe the use of equal parts of anthracene oil and quinoline and of 2 parts decahydronaphthalene and 1 part dimethyl aniline. Reference has been directed by the Comptroller to Specification 295,238.
Patent GB-1136394-A (GB)
Title: Improvements in or relating to the coating of metals
Inventor: FRICKER DENNIS JOHN
IPC: B05D7/14
Filed: 1965-07-09
Abstract: 1,136,394. Flame spraying. BRITISH ALUMINIUM CO. Ltd. July 7, 1966 [July 9, 1965], No. 29225/ 65. Heading C7F. [Also in Division B2] A metal section is treated by shaping the section at an elevated temperature with a metal-shaping tool and spraying the section with a coating material after the section has been shaped before it cools below 200‹ C. without intermediate cleaning of the surface of the section. The coating material may be a metal e.g. aluminium or an alloy thereof, alumina or plastics and "cermet" materials, and may be applied by a spray gun or by splutter spraying. Metal sections shaped by extrusion or rolling and consisting of aluminium or an alloy thereof may be coated e.g. an extruded section composed of an aluminium alloy of composition 0-0À10% copper, 0À4-1À4% magnesium, 0À6-1À3% silicon, 0-0À5% iron, 0À4-1À0% manganese, 0-0À1% zinc, 0-0À2% titanium, 0-0À3% chromium and balance aluminium is splutter sprayed as it leaves the extrusion die at 500‹C. with 99À5% purity aluminium, or wire of the alloy is sprayed on to the extruded section of the alloy. In an embodiment, a sheet of the alloy is extruded with longitudinal channels of trapezoidal cross-section. In the Figure the sheet is formed along one longitudinal edge with an upward opening channel 1 the outer wall 2 of which is intended to engage under a longitudinally extending lip 3 formed on the opposed longitudinal edge so that the sheets may be interlocked to form a landing surface for aircraft. The surface of the sheet between adjacent upwardly opening channels indicated at 4 is coated with 99À5% purity aluminium as the extruded sheet leaves the die at 500‹ C. The coatings may be selected for resistance to wear, corrosion or for decorative effect.
Patent GB-1283077-A (GB)
Title: Process for making polyimide powder
Inventor: LOVEJOY ELWYN RAYMOND
IPC: C08G73/10
Filed: 1969-06-10
Abstract: 1283077 Aromatic polyimide powder E I DU PONT DE NEMOURS & CO 10 June 1969 [11 June 1968] 29265/69 Heading C3R Coalescible aromatic polyimide powders of surface are at least 0À1 m.<SP>2</SP>/g. are produced by imidizing at 100 to 200 C. in a solvent (a) a polyamide acid of inherent viscosity up to 1 (0À5 g./100 ml. solution in pyridine at 35 C.) preformed from at least one aromatic diamine monomer and at least one tetracarboxylic dianhydride monomer in the presence of (b) at least one monomer sufficient to maintain the ratio of reactive anhydride to amine groups within 1-5% of 1 : 1 and recovering the polyimide powder. The polyamide-acid (a) may be made using at least 2 mol. per cent excess of one monomer the other monomer then being used as monomer (b). Imidization may be effected in refluxing pyridine. The process of Specification 1,140,610 is disclaimed. Reference has been directed by the Comptroller to Specification 981,543.
Patent GB-364153-A (GB)
Title: Process of printing with thioindigoid vat-dyestuffs and printing pastes therefor
IPC: D06P1/673
Filed: 1930-09-30
Abstract: In printing with thioindigoid vat dyes with pastes containing the dyestuff, an alkali carbonate, sodium formaldehyde-sulphoxylate, a thickening agent and any other usual additions, more intense prints are obtained by adding a salt, oxide or hydroxide of a metal other than an alkali metal or alkaline-earth metal to the printing paste, the quantity of added salt, oxide or hydroxide being less than one molecular proportion for each molecular proportion of the pure dry dyestuff.  The metal compound may be added to the dyestuff paste or to the printing paste.  In examples, the following dyestuffs are pasted with glycerine, wheat starchtragacanth thickening, potassium carbonate, sodium formaldehyde-sulphoxylate, and ferrous sulphate, ferric chloride, freshly-precipitated copper sulphide or zinc sulphate.--4 : 4<1>-dimethyl-6 : 6<1>-dichlorthioindigo, 4-methyl-6-chlor-6<1> methoxythiondigo (made from 6-chlor-4-methyl-3-oxythionaphthene and the condensation product of 6-methoxy-3-oxythionaphene with p-nitrosodimethylaniline), 4 : 4<1>-dimethyl-6 : 5<1> : 7<1>-trichlorthioindigo (made from 4-methyl-5 : 7-dichlor-3-oxythionaphthene and the condensation product of 4-methyl-6-chlor-3-oxythionaphene with p-nitrosodimethylaniline), 6 : 6<1>-diethoxythioindigo, and the dyestuff obtained by condensing 3-oxythionaphtene with acenaphenequinone.  The material is printed with one of these pastes, steamed, oxidized while rinsing with water, and finished.
Patent GB-1470772-A (GB)
Title: Timing movement
IPC: G04C15/00
Filed: 1973-06-20
Abstract: 1470772 Electric clocks UNITED GAS INDUSTRIES Ltd 3 June 1974 [20 June 1973] 29330/73 Heading G3T In a movement for a clock or time switch and comprising a synchronous electric motor 11 and a reserve spring which is wound by the motor and drives the output when the motor is inoperative, the spring drive is controlled by an escapement 33 which is also coupled to the motor so that it runs in synchronism with the motor as long as the latter is operative, and the motor drives the output via a one-directional clutch 20 to disconnect the motor if it stops. As shown the motor 11 drives gearing 15 coupled to spring barrel 16 to wind the reserve spring, and the barrel also drives input gear 19 of the clutch 20. The clutch output shaft 23 drives output gearing 24, 26 and is also coupled via wheel 40, pawl 38 and ratchet wheel 37 to the arbor 18 of the spring barrel, the spring being thus allowed to unwind at a rate lower than the winding rate. The clutch output is also coupled to the escapement via a friction clutch 29, 30 and a balance spring is coupled to an arm 43 which is rocked by the motor to force the balance to oscillate at a rate governed by the motor. If the motor 11 stops, the barrel 16 becomes locked but arbor 18 continues to turn, driving the escapement 33 and the output gearing while the ratchet clutch 20 slips. Overwinding of the reserve spring is prevented by slipping in the barrel. The ratchet and pawl 37, 38 permit manual winding of the spring by a knob 36. If the escapement jams, the motor 11 can still drive the output since the friction clutch 29, 30 then slips.
Patent GB-945238-A (GB)
Title: Appliance for attachment to a linear body to indicate the presence of said body
IPC: F16K17/10
Filed: 1962-07-31
Abstract: 945,238. Signs. PREFORMED LINE PRODUCTS CO. July 31,1962 [Aug. 3, 1961], No. 29348/62. Heading G5C. An indicator for example for indicating the presence of an electric cable, comprises a number of elements which are preformed into a helix of such size as to engage the cable,the elements being opened-out during part of their length to define a surface which is formed by a sheet of material secured to and extending between the elements. Fig. 1 shows a suspended electric power cable 20 with an indicator 10 which is spherical in shape and consists of a number of segments 30 of brightly coloured plastic, fibreglass, aluminium or like material. The segments are held by plastic covered wires which are helically preformed at their end portions so as to grip the cable 20 and are opened-out at a portion intermediate their ends to support segments 90. A gap 40 provides drainage for any moisture and also provide wind passages. A wire strap, Fig. 3 (not shown) may be fixed to the wire elements to maintain a desired spatial relationship between them. In a further modification, Figs. 4 and 5 (not shown) the wires are replaced by rods, for example of plastic, spaced apart by plastic straps. Specifications 781,670 and 817, 535 are referred to.
Patent GB-387977-A (GB)
Title: Improvements in or relating to multiple drilling machines
IPC: B23Q5/12
Filed: 1932-10-21
Abstract: 387,977. Drilling brushstocks. AKTIEBOLAGET CEMA MULTIPLE DRILL MACHINE CO., lA, J÷rgen Ankersgatan, Malm÷, Sweden. Oct. 21, 1932, No. 29520. Convention. date, Oct. 26, 1931. [Class 83 (iii).] A drilling-machine particularly suitable for drilling brush-stocks with inclined holes and having helical spindles rotated by means of a reciprocable plate is provided with a feed arrangement such that each spindle is fed in the direction of its axis towards the workpiece which is stationary. The drills 30, adapted to cut during forward and reverse rotation, are carried at their lower ends by a jig-plate 23, the upper ends being connected to the archimedean spindles 29, which terminate in circular portions 26 revolving in a guide-plate 5. The driving means comprise the plate 12 which engages the spindles and is reciprocated vertically on pillar guides 2 by crank and connecting-rod gear from the shaft 20. The drills are fed simultaneously into the workpiece 31 by a lever 8 which is hinged to a plate 11 bearing against the top of the spindles and sliding on vertical guides 3, spiral springs 27 returning the spindles when the lever is released. The machine may be provided with a protecting casing with slots for movable projecting parts ; the spindles may also be arranged horizontally instead of vertically to facilitate the removal of cuttings.
Patent GB-664230-A (GB)
Title: Improvements in sensitive photographic emulsions
IPC: G03C1/09
Filed: 1949-11-18
Abstract: 664,230. Photographic emulsions. KODAK, Ltd. Nov. 18, 1949 [Nov. 18, 1948], No. 29568/49. Class 98 (ii). The speed of a light-sensitive silver halide emulsion is increased by the incorporation of bis - (p - aminoethyl) - sulphide, a non-desensitizing water-soluble salt thereof, or bis- (y - diethylaminopropyl) - disulphide. The emulsion may also contain a sulphur sensitizer incorporated before, simultaneously with, or after the speed-increasing compound, and may also contain an optical sensitizer. The compound may be added during digestion of the emulsion, so that further digestion occurs after the addition. At least one emulsion layer of a colour photographic multilayer material may be so prepared. In example 1, the effect on the fog, gamma,and speed of a gelatine emulsion peptized with a gelatine derivative as described in Specification 649,545 of additions of allyl thiourea, of bis-(#-aminoethyl)-sulphide dihydrochloride, and of both allyl thiourea and bis - (# - aminoethyl) - sulphide dihydrochloride is shown in a table. In example 2, a similar comparison is made of the effect of additions of allyl thiourea, bis-(y-diethylaminopropyl)- disulphide on gelatine and polyvinyl alcohol silver bromiodide emulsions. The speed increase is effective at a fairly low pH, such as 6.0, and the increase obtained with a sulphursensitized emulsion is considerably greater than would be expected from the speed increases obtained by the use of the individual sensitizers. The emulsion binder may also be a copolymer of polyvinyl alcohol or a partially hydrolysed cellulose ester (e.g. cellulose acetate). Specification 235,211, [Claas 98 (ii)], also is referred to.
Patent GB-880572-A (GB)
Title: Automatic slack adjusting mechanism
Inventor: HIGGINS HORATIO LESLIE
IPC: B61H15/00
Filed: 1958-09-16
Abstract: 880,572. Automatic brake rigging adjusters; disc brakes. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Sept. 7, 1959 [Sept. 16, 1958], No. 29578/58. Class 103 (1). A slack adjuster for railway vehicle braking apparatus, comprises a sleeve 3 rotatable about its longitudinal axis relative to a member 8 which it threadingly engages, the sleeve 3 carrying a worm 13 engageable with a wormwheel 15 attached to a ratchet device 18, 22 operable by arm 24 connectable to the apparatus and by which, when the movement of the arm exceeds a predetermined amount, the worm is stepped round to rotate the members 3, 8 relative to one another. The ratchet member 18 guided by a bush 17 and extending through wheel 15, is formed with ratchet teeth 19 engaged by a non-rotatable locking pawl 20 and a driving pawl 22 which is mounted in a housing 21 rotatable by arm 24. The adjacent ends of wheel 15 and member 18 have diametric slots 25, 26 respectively, to receive a dog clutch 27 spring loaded to the engaged position but movable out of slot 26 by a cam lever 28. Movement of a rod 31 into brake cylinder 32, Fig. 4, to apply disc brake 34, rotates arm 24 clockwise; should wear have occurred then pawl 22 rides over a tooth of ratchet 19, pawl 20 preventing clockwise rotation of member 18. On brake release, pawl 22 is rocked back to its original position and through member 18, clutch 27, turns worm-wheel 15 to rotate sleeve 3 and cause the shaft 8 to be screwed out of housing 1 to take up the slack. To reset the mechanism, clutch 27 is disengaged from member 18 and, since worm 13 is of the reversible type, the sleeve 3 is rotated by handle 12 to adjust shaft 8 longitudinally. Specification 826,701 is referred to.
Patent GB-1366503-A (GB)
Title: Composite load bearing structural member
IPC: F24F3/12
Filed: 1971-06-24
Abstract: 1366503 Wall panels O A BECKER 24 June 1971 [25 June 1970] 29647/71 Heading E1B A panel or block comprises a hollow rectangular parallelepipedic pressure resistant outer element 15 which completely encloses a similarly shaped inner element 10 and has anchoring elements 11, 12 screw threaded together connecting the opposite walls of the outer element and passing in fluid tight manner through the inner element. The outer element may be completely cast of portland cement or may be partly cast and closed on its other sides by foamed plastics or plasterboard panels, 21b, 27, Fig. 3; 64 Fig. 8. The inner element 23 or elements 63 Fig. 8 may be spaced from the outer element and the space may be filled with foamed plastics. The inner element may be evacuated or contain an excess pressure of air. The panels may be interconnected by pipes to valves and pumps for conditioning the air in the cavities. Panels may be used in the construction of refrigeration chambers in transportation vehicles. Reference has been directed by the comptroller to Specification 1321985.
Patent GB-536300-A (GB)
Title: Improvements in or relating to a profile truing device for grinding wheels
IPC: B24B53/08
Filed: 1939-11-08
Abstract: 536,300. Trueing grinding-wheels. LIDKOPINGS MEKANISKA VERKSTADS AKTIEBOLAG. Nov. 8, 1939, No. 29676. Convention date, Jan. 2. [Classes 60 and 124] In a device for trueing grinding-wheels having a number of surfaces 13, 15 separated by steep shoulders 14, comprising a templet 8 and a co-operating feeler 7, this has a part 24 movable, relatively to the main part 22, in a direction perpendicular to or, as shown, parallel with the grinding-wheel axis against the action of a spring 26 and provided with surfaces 21, 31 transverse to each other, the surface 21 being substantially parallel to the wheel axis and utilized to engage the surfaces 16, 18, 20 of the templet and the surface 31 being utilized to engage a transverse shoulder 19 thereof. In the arrangement shown the slide 3 is moved from right to left with the feeler pressed on the templet and the tool 6 gives a corresponding form 11, 12, 13 to the wheel 1. When the shoulder is reached the part 24 is arrested until a stop prevents its movement relative to the part 22 or until, as shown, a surface 32 on the part 22 also engages the shoulder 19 and the slide 3 is arrested. The cross slide 4 is then withdrawn radially, to cut the shoulder 14, until the part 24 is projected by its spring over the surface 20 and the slide 3 can continue its movement to cut the face 15. If the part 24 is arranged to move relative to the part 23 perpendicularly to the wheel axis, tne slide 3 is moved from left to right and the spring is compressed except when cutting the shoulder 14. In another modification there are two parts 24 slidable at right angles to each other one part being locked when the other is in use. If desired the part 24 may be pivoted to move in the desired direction instead of sliding. The Specification as open to inspection under Sect. 91 comprises also a single part 24 arranged to move in either direction. This subject-matter does not appear in the Specification as accepted.
Patent GB-955775-A (GB)
Title: Process for the electroles coating of metals or metal articles
IPC: C23C18/31
Filed: 1962-08-02
Abstract: In a process of electroless coating magnesium and/or iron, steel, copper or brass with tin, the metals are contacted with an aqueous solution containing an alkali metal pyrophosphate and a stannate and in the case of the metals other than magnesium they are also in continuous or intermittent contact with an anodic metal, such as magnesium, which is below sodium in the EMF series. The coating solution contains 37-60 g/l. of potassium or sodium stannate (K2SnO3.3H2O), 30-100 g/l. of tetra sodium pyrophosphate (Na4P2O7), 0-12.5 g/l. NaOH or KOH to give a pH value of 12-13.2 and 0-30 g/l. of potassium, sodium or ammonium acetate.  The metal surfaces are first cleaned and may then be given an activated pickle in phosphoric acid-ammonium acid fluoride. With the acetate in the coating solution this activated pickle may be avoided. Coating is carried out by immersion, brushing or spraying with the solution at 80-85  DEG C., and in the case of the iron, steel, copper or brass the plating is carried out so that the metal is in contact with an anodic metal, e.g. a barrel plating process in which the barrel is lined with magnesium. The coated metal is then neutralized by immersion in an aqueous 5% ammonium acid fluoride solution or an aqueous 5% sodium bifluoride solution.  U.S.A.  Specification 2,901,409 is referred to.
Patent GB-887198-A (GB)
Title: Liquid fuel pumps for internal combustion engines
Inventor: VOLOSSEVICH GEORGE
IPC: F02M41/14
Filed: 1958-09-17
Abstract: 887,198. Fuel injection pumps. C.A.V. Ltd. Sept. 3, 1959 [Sept. 17, 1958], No. 29735/58. Class 102(1). In a fuel injection pump a member 20 having a fork 24 at one end is slidable on and rotatable with a shaft 12 driving a cylindrical head 7 having a cylinder bore 8 communicating sequentially through a rotary valve 13 with the outlet of a pump 4, which has a spring loaded relief valve, and with outlets 16 leading to the injectors. Plungers 9 in the bore 8 are actuated by a fixed cam 11. The outward movement of the plungers is variably limited by the engagement of the plungers with members 25 carried on the head 7 and engaged by the fork end 24 of the member 20 which is moved axially against the pressure of a spring 21 by means of a centrifugal governor 22 or manual means 23.
Patent GB-617542-A (GB)
Title: Improved method of manufacturing electrolytic condensers wherein at least one electrode is coated with an amorphous film of oxide
IPC: H01G9/00
Filed: 1946-10-05
Abstract: 617,542. Electric condensers. PHILIPS LAMPS, Ltd. Oct. 5, 1946, No. 29749. Convention date, Jan. 27, 1943. [Classes 37 and 41] In order to reduce the series resistance of an electrolytic condenser in which the electrode or electrodes are coated with a dielectric crystalline oxide film and an amorphous oxide film, the electrodes are heated for some time after the oxide films have been provided. According to one example, the heating takes place at approximately 450‹ C. for a period of approximately 30 minutes.
Patent GB-1525887-A (GB)
Title: Cooling rotating furnaces
IPC: F27D1/12
Filed: 1976-07-16
Abstract: 1525887 Cooling rotary furnaces BRITISH STEEL CORP 15 July 1977 [16 July 1976] 29778/76 Heading F4B The discharge end 16 of a substantially horizontally disposed rotary furnace is cooled by continuously passing a cooling liquid through an annular coil 20, the liquid being delivered to an inlet end of the coil from a first annular trough 22 surrounding and rotatable with the furnace and being impelled through the coil 20 under centrifugal forces of rotation to discharge from an outlet end of the coil 20 into a stationary second annular trough 28 surrounding the furnace. As shown the annular multi-turn coil 2C is embedded within an end dam 18 formed of refractory or metallic material. Cooling liquid is supplied continuously to the first trough 22, and used cooling liquid is discharged from the second trough 28 via a drain 34. Inlet and outlet valves 36 and 38, each responsive to open at a predetermined centrifugal force value, are provided at the inlet and outlet ends respectively of the cooling coil, the outlet side valve 38 being set to open at a higher valve than the inlet side valve 36.
Patent GB-966940-A (GB)
Title: Fastener for attaching a moulding strip to a support
IPC: F16B5/12
Filed: 1962-08-02
Abstract: 966,940. Turn-button fastenings. UNITEDCARR FASTENER CORPORATION. Aug. 2, 1962 [Aug. 3, 1961], No. 29809/62 Heading E2A. [Also in Division F2] A one-piece fastener moulded from synthetic plastics material for attaching a channel shaped metal moulding 3 to a metal support 1 comprises a base 6 for insertion into the open side 5 of the moulding, a resilient finger 7 extending laterally from the base 6 for engagement with the inner face of the moulding, a flexible flange 8 extending from the base in spaced relation thereto for engagement between the moulding 3 and the support 1 to insulate one from the other, and a shank 10 extending from the base for insertion into an aperture 2 in the support to secure the fastener thereto. As shown, the fastener is locked to the support by a self tapping nut 11 and the flange 8 is recessed at 12 to form a lip 13 for sealing the aperture 2 against moisture and dust. The shank may co-operate with a socket mounted in the aperture 2, instead of the nut 11. Reference has been directed by the Comptroller to Specification 870,671.
Patent GB-1346346-A (GB)
Title: Apparatus and method for the extrusion moulding of foamable synthetic plastics material
IPC: B29C48/30
Filed: 1971-06-25
Abstract: 1346346 Extruding foamed thermoplastics C I KASEI CO Ltd 25 June 1971 [26 June 1970] 30009/71 Heading B5A In the extrusion from a die outlet 2B of a foamed thermoplastics, e.g. of square crosssection, having a less highly foamed circumscribing skin, the foamable thermoplastics from an extruder screw 6 is delivered through a tubular restricted passageway 10 which restrains foaming to define the skin, and is also delivered from the screw 6 through a passageway 8 coaxially within the passageway 10 and which is of increasing cross-section in the downstream direction to permit foaming of the thermoplastic discharged within the thermoplastic from the passageway 10, at an outlet 8A upstream of the die outlet 2B. In the described embodiment the die outlet 2B, passageway 10, and outlet 8A of passageway 8 are of square cross-section, the inlet of passageway 8 being of circular section. The passageway 8 is defined through a member 7, which also defines the passageway 10 with an outer metal die part 2 and has a metal flange 1 at which, together with the outer die part 2, an adaptor 3, and a breaker plate 4, it is clamped by a circumscribing membet 5 to the extruder barrel 6A by screws 6B. Communication to the passageway 10 is provided by openings through the flange 1, which may either be of the configuration 9 shown in Fig. 2 and aligned with each corner of the square tubular passageway 10, or may comprise the circular openings 9 of Fig. 5.