baber/WOPTO huggingface dataset:
Patent GB-1084288-A (GB)
IPC: B01J8/00
Abstract: 1,084,288. Charging and discharging pressure vessels. INVENTA A.G. FUR FORSCHUNG UND PATENT VERWERTUNG. Nov. 13, 1964 [Nov. 29, 1963], No. 46365/64. Heading B1X. Pulverulent or granular material is introduced into a pressure vessel by means of an extrusion press having a cylindrical moulding chamber 3 with a sliding ram 2 at one end and a retractable biased tapered closing member 4 at the other end, the ram and the closure member being so interconnected that the bias on the closure member is relieved when the force exerted by the ram exceeds a predetermined value, the outlet 5 communicating with the inlet of the pressure vessel and the material being introduced at inlet 1. During initial starting the member 4 is advanced to the closed position and held there by conventional means. Ram 2 is retracted, a change of material introduced and the ram on advancing comprises a plug of material against member 4. The holding device for member 4 is then released, the ram retracted and a second change introduced which is compressed. During this compressing movement member 4 is forced back against the biased pressure of piston 8 and the first formed plug is extruded past the partially withdrawn member 4 and broken up into fragments thereby. If a plug sticks in chamber and the pressure of hydraulic fluid in cylinder 6 builds up to a value exceeding a predetermined value fluid escapes through a relief valve 11 to end 9 of cylinder 10 to counteract the bias provided by fluid from chamber 7 and the member 4 is thus retracted fully. When the plug moves and pressure in chamber 6 falls the pressure in chamber 9 is released through return valve 12. The press may also serve for discharging material from a pressure vessel in which case the vessel outlet is connected at the inlet 1.
Patent GB-1143655-A (GB)
IPC: H01H9/42
Abstract: 1,143,655. Arcing preventing in switches. A. J. STEPHEN. 9 June, 1966, No. 25692/66. Heading H1N. A switch for arcless interruption is provided with a plurality of spring-loaded fixed contacts C 1 , C 2 , C 3 , C 4  connected to tappings of a resistor R, a movable blade M, which may also be spring loaded, engaging or disengaging the contacts sequentially during making or breaking respectively.
Patent GB-1183449-A (GB)
IPC: C07C51/41
Filed: 1968-10-04
Abstract: 1,183,449. Calcium tartrate. DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT VORMALS ROESSLER. 4 Oct., 1968 [5 Oct., 1967], No. 47205/68. Heading C2C. Calcium tartrate is prepared by oxidizing calcium maleate with at most equimolar quantities of hydrogen peroxide containing not more than 40 p.p.m. iron ions, in the presence of tungstic or molybdic acid and/or their ammonium or alkali-metal salts as catalysts in the presence of water at between 50‹ and 90‹ C., hydrolysing the product by boiling and removing the precipitated calcium tartrate. The mother liquor remaining may optionally be treated with calcium hydroxide.
Patent GB-1225089-A (GB)
IPC: G06K9/64
Filed: 1969-10-30
Abstract: 1,225,089. Character recognition. INTERNATIONAL BUSINESS MACHINES CORP. 30 Oct., 1969 [29 Nov., 1968], No. 53125/69. Heading G4R. In a character form recognition device, the character form is shifted through a set of bistables in binarized form, a plurality of logical mask circuits pulsing respective counters on detection of respective patterns in the set of bi-stables, generation by the device of a signal indicating recognition of a character form being inhibited when the count in every counter does not reach a predetermined minimum value. The mask circuit outputs are passed to the counters only during a period following detection of a minimum character requirement in the set of bi-stables by a further mask circuit. This period corresponds to shifting through several columns of the character. Following this period, a train of clock pulses is fed to the counters in parallel, the first to overflow (count of 16) setting a respective stage of an output register and stopping the train. If no overflow is obtained within a first predetermined number of clock pulses, the operation ends. If overflow is obtained, a second predetermined number of clock pulses is applied to the counters, any further overflows setting the respective stages of the output register. Signals are produced indicating " at least one stage set," " no stage set," and " more than one stage set," respectively. Attainment of the first and second predetermined numbers of clock pulses is indicated when respective further counters fed with the pulses and preset to manually-selectable initial values reach predetermined counts. The initial value for the first further counter is 0, 1, 2, 3 or 4 and that for the second further counter is 0 or 1. The predetermined count for the first further counter is 12 and that for the second is selectively (a) 3, (b) 4, or (c) 3 or 4 according as the first further counter has or has not reached a count of at least 8. As modifications, a fixed number of clock pulses could be supplied to the main counters, the output register inputs being inhibited at the correct moment. Masks for different type faces of the same character may feed the same main counter via an OR gate.
Patent GB-1226201-A (GB)
IPC: F15C1/08
Filed: 1968-03-06
Abstract: 1,226,201. Mixing fluid streams. G. B. RICHARDS. 6 March, 1968 [16 March, 1967; 26 June, 1967], No. 10871/68. Heading B1C. [Also in Divisions G3 and G41 A device for selectively mixing or maintaining separate two rectangular jets of fluid comprises a modification of Figure 8 in which the fluids, flowing in passages 214, 216, come from separate sources. The pressure within duct 220 is altered by opening or closing port 218. With port 218 closed and ports 244, 246 open, the jets coalesce and enter duct 224 to discharge at 210. With the port closures reversed, Figure 10 (not shown), the jets attach to the walls of ducts 200 and discharge via passages 226, 228 to separate outlets. In another device, Figure 11, the two jets pass to outputs O 1  - O 3  under the control of valves C 1  - C 3 . As shown, the walls bounding O 1  split the jets, but they may be adjusted transversely so that they do not split them. By selective closure of the valves the jets coalesce and exit at O 1 , O 2 , or O 3 , Figs. 12, 13, 16 (not shown), or the jets remain separated and may be attached to the adjacent walls, Figs. 14, 15, 17 (not shown).
Patent GB-1226546-A (GB)
IPC: F16C35/067
Filed: 1967-06-09
Abstract: 1,226,546. Machinery guards. LAWRENCE EDWARDS & CO. (ENGS.) Ltd., and E. S. WAINWRIGHT. 7 June, 1968 [9 June, 1967], No. 26705/67. Heading F2J. A machinery guard 10 for telescopic shafts 11 having a universal joint 12 at each end comprises telescopic sheaths 17 each having a bearing housing 19 secured thereto, bearing balls 24 being located in radial apertures 22 and held in engagement with a circumferential groove 16 in a yoke boss 14 of a joint 12 by wedgeshaped cams 33 acting on intermediate bearing seats 25. The cams 33 are formed on coneshaped projections 29 which are adapted to be moved axially in order to release the balls 24 from ergagement with the grooves 16. The sheaths 17 may be formed of tubes of steel or of plastics material such as rigid polyvinyl chloride. The bearing seats 25 are of nylon impregnated with molybdenum disulphide.
Patent GB-1228691-A (GB)
IPC: C08K3/04
Filed: 1969-03-07
Abstract: 1,228,691. Thermoplastic polyester moulding composition. FARBWERKE HOECHST A.G. 7 March, 1969 [7 March, 1968], No. 12169/69. Heading C3R. A shaped article is made by injection moulding of a thermoplastic moulding composition comprising a mixture of (a) a linear saturated polyester of an aromatic dicarboxylic acid and, optionally, a small amount of an aliphatic dicarboxylic acid with a saturated aliphatic or cycloaliphatic diol, and (b) 0.6 to 15% by weight, based on the polyester, of soot, which preferably has a particle size of less than 2 microns. The composition may be coated with paraffin or polyethylene wax and may contain up to 20% of a copolymer of ethylene and an acrylic ester or of butadiene and styrene. Preferred polyesters are polyethylene terephthalate and polycyclohexane - 1,4 - dimethylol terephthalate. Reference has been directed by the Comptroller to Specification 1,000,101.
Patent GB-1229981-A (GB)
IPC: A01C5/02
Filed: 1968-01-27
Abstract: 1,229,981. Hand tool handles. WILKINSON SWORD Ltd. 3 Jan., 1969 [27 Jan., 1968], No. 4369/68. Heading B4K. [Also in Division A1] A handle portion 20 integral with the blade 21 of a hand implement and preferably formed of stainless steel is substantially annular in cross section having a longitudinally extending slot 31 widened at 30 to receive a longitudinal projection (34), Fig. 9 (not shown), on a plug 22. The plug which holds a shaped sleeve 23 on the handle portion, has an annular portion (32) and a taper (35). Both plug and sleeve may be of moulded synthetic resin.
Patent GB-1230579-A (GB)
IPC: H01F36/00
Filed: 1967-07-24
Abstract: 1,230,579. Transformers. CENTRAL ELECTRICITY GENERATING BOARD. 2 Aug., 1968 [24 July, 1967], No. 33883/67. Heading H1T. [Also in Division H2] A superconducting transformer has a protective winding 11 (Fig. 1) of normal conductive material (copper) in a parallel circuit with and having the same number of turns as each of its superconductive windings 10, means being provided to divert the current from the superconducting winding to the normal winding on the occurrence of a short circuit fault. These diverting means comprise at least a resistor 13 or 12 in series with one or each of the windings 11, 10 having in series (14) or parallel (15) therewith a (vacuum) switch 14, 15 which opens .(14) or closes (15) on the occurrence of short circuit fault conditions. Switch 15 is closed quickly and switch 14 is opened within a half cycle. When the short circuit conditions are past the switches are returned to their original settings. The windings may be arranged in interleaved sections the sections 54, 57 (Fig. 7) which protect the primary sections 50, 51 being arranged between and adjacent the latter while the secondary sections 52, 53 are arranged in the middle with their protective sections 55, 56 on each side. The superconducting windings are formed of niobium plated on copper. The protective windings may be formed of a copper conductor having about 30 transposed strips each of a thickness equal to about <SP>1</SP>/ 30  of the skin depth and this conductor may have a coating of niobium to reduce eddy current losses.
Patent GB-1231557-A (GB)
IPC: C07F7/12
Filed: 1970-03-12
Abstract: 1,231,557. Aryldimethylchlorosilanes. RHONE-POULENC S.A. 12 March, 1970 [13 March, 1969], No. 12031/70. Heading C3S. Aryldimethylchlorosilanes are prepared by heating a diaryldichlorosilane with trimethylchlorosilane in the liquid phase at 70 to 220 C. in the presence of aluminium chloride. The aryl group is preferably phenyl which may be substituted by chlorine. The amount of aluminium chloride is 0À1 to 10% by weight of the chlorosilane mixture. After reaction, the aluminium chloride is preferably complexed, e.g. with a ketone or sodium chloride, to avoid being carried over in the subsequent distillation. Dimethyldichlorosilane is prepared in the redistribution as well as other phenyl silanes.
Patent GB-1238204-A (GB)
IPC: H01L27/00
Filed: 1968-09-25
Abstract: 1,238,204. Transistor circuit. SOC. GENERALE SEMICONDUTTORI S.p.A. 25 Sept., 1968 [21 Dec., 1967], No. 45585/68. Heading H3T. Saturation of a switching transistor T 1 , Fig. 2, is controlled by a control transistor T 2  whose base is connected through a resistor R B  to its collector and this is connected to the base of T 1 , whose emitter is connected through a resistor R E  to the emitter of T 1 , the combination forming a three terminal unitary construction B, C, E. The device may be integrated (Fig. 3, not shown). Transistor T 2  may have a collector resistor (RC, Fig. 5, not shown) which provides a limit to the range of control of T 2  which saturates when its collector current reaches a value dependent upon the resistor (Rc). A capacitor (C B , Fig. 6, not shown) by-passes the base emitter junction of T 2  to improve switch-on speed. When the transistors are formed in the same semi-conductor chip, their characteristics, especially #, are closely correlated and T 2  provides optimum compensation for changes in gain of T 1 , which affect the saturation of T 1 , over a wide temperature range.
Patent GB-1238570-A (GB)
IPC: D05B77/00
Filed: 1969-10-21
Abstract: 1,238,570. Sewing machine covers. SINGER CO. 21 Oct., 1969 [25 Oct., 1968], No. 51646/69. Heading A4B. A cover 11 of a sewing machine case includes a compartment 23 defined between an end wall 15 and a panel 32 extending between front and rear cover walls 17, 18, the panel 32 having a hinged portion 36 which closes the bottom access opening to the compartment and which has an aperture 37 to detachably receive the end 38 of a latch spring 39 to which manual access may be had through a further aperture 41 to effect release. The upper part 33 of the panel 39 is engaged between pairs of guides 26, 27 and 28, 29 on the front and rear walls 17, 18 and includes a flexible tab 44 which is locked to a projection 42 depending from the top wall 14. An instruction manual may be supported by formations 48, 49, 52, 58, 55 on the rear wall 18.
Patent GB-1239449-A (GB)
IPC: C07F9/09
Filed: 1968-06-24
Abstract: 1,239,449. Nucleosides; polyphosphoric acid phenyl esters. FARBWERKE HOECHST A.G. 24 June, 1968 [24 June, 1967], No. 30044/68. Heading C2C. Nucleosides and derivatives thereof are prepared by reacting a sugar, or sugar derivative having a free carbonyl function, with an organic nitrogen base which contains in a ring at least one nitrogen atom carrying a hydrogen atom, in an inert solvent and in the presence of a polyphosphoric acid phenyl ester in which the phenyl group may be substituted by halogen or C 1-3  alkyl groups. Preferred bases are those derived from pyrimidine, purine and 8-aza-purine. Specified sugars include trioses, tetroses, pentoses, hexoses and heptoses and the corresponding ketoses and, as derivatives, desoxy-sugars, acylated amino sugars, monocarboxylic sugar acid esters, etherified sugars and apurinic acids. The reaction is preferably effected under anhydrous conditions at 50-100 C. and a pH of 0À5-3À0 using an excess of the base. The reaction proceeds through phosphorylation of the sugar or base and the product may be isolated by evaporating the inert solvent, dissolving the residue in water, neutralizing the solution, removing the polyphosphoric acid ester by filtration and recovering the nucleoside from solution, e.g. by chromatography or concentration. Examples describe the preparation of α- . and #-9-D-ribofuranosyl-adenine and α- and # - 9 - D - desoxyribofuranosyl - adenine. Polyphosphoric acid phenyl ester is obtained as a complex mixture by :heating P 2 O 5  and triphenyl phosphate at 300 C.
Patent GB-1251090-A (GB)
IPC: B42F13/02
Filed: 1969-03-03
Abstract: 1,251,090. Filing papers. GILCHRIST & FISHER Ltd. 3 March, 1970 [3 March, 1969], No. 11105/69. Heading B6E. A loose-leaf binder, having a cover made of two plastics sheets 11, Fig. 3, between which are sandwiched cardboard sheets 12 and foamed plastics sheets 13, is provided along its spine portion 3 formed between cover members 1, 2 with sheet retaining means 4, 5 which are heatwelded to the spine and constitutes a strip 4 and tongues 5. The strip is heat-welded such as to leave tunnels 6, Fig. 1 and teeth 10 opposite the tongues 5, which when pressed through apertures 7 of documents, sheets or filing stubs 8, Fig. 6, are laced through the tunnels 6 and interlocked with the teeth 10 through the intermediary of notches 5b.
Patent GB-1251749-A (GB)
IPC: F02C7/22
Filed: 1969-09-12
Abstract: 1,251,749. Gas turbine engine combustion chambers. BENNES MARREL. Sept. 12, 1969 [Oct.18, 1968], No.45060/69. Headings F1G and F1L. The invention relates to gas turbine engine combustion equipment of the kind comprising an inner flame tube and an outer casing, air-flowing upstream through the annular air passage and combustion gases flowing downstream through the flame tube. The equipment shown comprises a pair of combustion chambers disposed side-by-side in vertical disposition each being in accordance with the invention. Each chamber comprises an outer casing 7 and an inner flame tube 8, air under pressure from the compressor of the engine flowing from space 10 in an upstream direction as indicated by arrows 51 and combustion gases flowing through the flame tube in a downstream direction as indicated by arrows 52. The outer casing 7 is closed at its upstream end by a frusto-conical cap 11, a fuel injector 12 being mounted thereon. The flame tube comprises a cylindrical end portion 14 into which the fuel injector 12 projects, a series of swirl-producing vanes 22 being disposed in the end portion 14. The flame tube comprises also a larger diameter cylindrical portion 16 connected to the end portion 14 by a frusto-conical portion 15, primary air inlet openings 25 and 27, 28 being formed in the frusto-conical and cylindrical portions 15 and 16 respectively. A divergent portion 30 extends from the cylindrical portion 16 being formed with secondary air inlet openings 31 and with cooling air slots 32. A frusto-conical deflector 35 is disposed around the divergent portion 30 in the region of the cooling air slots 32. A second frusto-conical portion 17 is provided between the cylindrical portion 16 and the divergent portion 30, secondary air inlet openings formed by short tube members 29 extending therethrough. The two flame tubes are inter-connected by a duct 36 having an expansion piece 37. The flame tube 8 terminates in a cylindrical portion 19. The fuel injector 12 comprises a solenoid-controlled valve member 39 which in the closed position engages against seat 40 so that fuel supplied through inlet 41 returns through spill passage 43, and which in the open position engages against seat 45 to close the spill passage and open the port 40 for fuel-flow to the nozzle 13. The flame tube comprises also a spark igniter 47 which is urged by spring 49 to an operative position 47a Fig.6 when the chamber is inoperative but which is moved to the retracted position 47b by gas-pressure acting on the piston 48 once combustion is started.
Patent GB-1258279-A (GB)
IPC: B23Q11/08
Filed: 1969-10-22
Abstract: 1,258,279. Machine safety device. HUWOOD Ltd. 5 Oct., 1970 [22 Oct., 1969], No. 51803/69. Heading F2J. [Also in Division H1] A machine safety device comprises a cable 2 passing over pulleys 3, 4 to position it between the working position and the operator. The cable is connected electrically between a control box and a pull switch 5. The switch comprises contacts 9, 10 normally held engaged by a spring 17. The cable 2 is coaxial and the central core 7 is clamped to the contact 9 while the outer conductor 8 is clamped between parts 11, 12 connected by a spring 14 and contact black 15 with the contact 10 through a half-wave rectifier 16. The contacts 9, 10 and rectifier 16 are in a control circuit having a relay which is only closed with the application of the half-wave current. Thus on pulling the cable 2 the contacts 9, 10 are opened against the action of the spring 17 and the relay opens breaking the A.C. supply to the machine motor and preferably applying a D.C. supply thereto to stop the machine quickly.
Patent GB-1258687-A (GB)
IPC: H02G7/00
Filed: 1970-07-10
Abstract: 1,258,687. Hook fastenings. DULMISON (AUSTRALIA) PTY. Ltd. 10 July, 1970 [14 July, 1969], No. 33647/70. Heading E2A. [Also in Division F2] A vibration damper 13-15 is secured to an overhead cable 8 by means of a suspender 6 hooked over the cable and at least one helical rod 10 wound round the cable. The hooked portion 7 of the suspender is coated with elastomer 9. The helical rod 10 is wound round the cable as shown to hold the suspender on the cable. The hooked portion of the suspender may be less open (Figs. 3 and 4, not shown).
Patent GB-1267020-A (GB)
IPC: C07C51/487
Filed: 1970-12-07
Abstract: 1,267,020. Purification of benzoic acid. DOW CHEMICAL CO. 7 Dec., 1970 [8 Dec., 1969], No. 57967/70. Heading C2C. A process for the purification of benzoic acid made by the oxidation of toluene comprises contacting the acid at 125-290‹ C. with oxygen prior to the final purification of the acid.
Patent GB-1290695-A (GB)
IPC: C08F36/00
Filed: 1969-11-26
Abstract: 1290695 (5,2,1,0<SP>2,6</SP>)-Tricyclo-8-decenes SOC NATIONALE DES PETROLES D'AQUITAINE 26 Nov 1969 [28 Nov 1968] 57928/69 Heading C5E [Also in Division C2] The invention comprises a (5,2,1,0<SP>2,6</SP>)-tricyclo-8-decene substituted at the 6-position by the group -CR<SP>11</SP> = CHR<SP>1</SP> in which R and R<SP>1</SP>, which may be the same or different, each represents a hydrogen atom or an alkyl or alkenyl radical. They are prepared by dehydrating an alcohol of the formula where T is a 6-(5,2,1,0<SP>2,6</SP>)-tricyclo-8-decenyl radical and R<SP>1</SP> and R<SP>11</SP> are defined above. In examples R<SP>11</SP> is CH 3 , R<SP>1</SP> is H and R<SP>11</SP> is CH 3 , R<SP>1</SP> is CH=CH 2 .
Patent GB-1295482-A (GB)
IPC: F41A7/00
Filed: 1970-03-25
Abstract: 1295482 Automatic or semi-automatic weapons GENERAL ELECTRIC CO 25 March 1970 [7 April 1969] 14384/70 Heading F3C The subject matter is as that in Specification 1,295,481 but the claims relate to the breech bolt locking mechanism.
Patent GB-1296633-A (GB)
IPC: C01G53/02
Filed: 1971-07-06
Abstract: 1296633 Nickel carbonyl INTERNATIONAL NICKEL CO OF CANADA Ltd 6 July 1971 [8 July 1970] 31735/71 Heading C1A Nickel carbonyl is separated from a gaseous mixture with other gases substantially insoluble in liquid iron carbonyl by scrubbing the mixture with liquid iron penta-carbonyl and recovering the dissolved nickel carbonyl. The gas mixture may contain carbon monoxide, 5 to 40% by weight of nickel carbonyl and 5 to 45% by weight of iron carbonyl. The liquid iron carbonyl used for scrubbing should be at a temperature below 25‹ C., and the process may be carried out at a pressure of at least 2 p.s.i.g. The gases are preferably passed in countercurrent. The resulting solution of nickel carbonyl in iron carbonyl may be fractionally distilled and the nickel carbonyl decomposed to form nickel and carbon monoxide, the liquid iron carbonyl being recirculated to the absorber for further use.
Patent GB-1302528-A (GB)
IPC: C10L1/30
Filed: 1969-04-14
Abstract: 1302528 Ramjet fuels SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 13 March 1970 [14 April 1969] 19004/69 Heading C5G [Also in Division F1] Ramjet fuels e.g. kerosene, gasoline or liquified C 1 -C 5  paraffins may contain Mo, Ba, Ca, Sr, K or Na or a compound thereof to improve their efficiency. Barium carbonate, nitrite and naphthasulphonate; calcium, strontium, sodium and potassium chlorides, sodium carbonate and ammonium molybdate are specified.
Patent GB-1313779-A (GB)
Title: Power cable terminator
IPC: H02G15/068
Filed: 1970-08-21
Abstract: 1313779 Cable terminations G & W ELECTRIC SPECIALTY CO 21 Aug 1970 40426/70 Heading H2E A power cable terminator comprises two closed-cell elastomeric sponge portions 20, 22 assembled together to form a cylindrical unit, the portion 20 being electrically conductive (e.g. by insertion of carbon particles or coating the portion with conductive silicone resin) and both portions having an opening (23, 27) extending therethrough to accommodate the cable 10, there being a tubular plastics housing 24 around the unit. The portion 20 is formed with a cavity 25 and the portion 22 has a tapered part 32 complementary to the cavity, the two portions being bonded together and inserted in the housing 24 which may be of acrylic resin. The portions 20, 22 may be made from silicone or ethylene propylene hydrophobic elastomers having densities of 0À019 lb./in.<SP>3</SP> and 0.009 lb./in.<SP>3</SP> and cell diameters of 0À40 to 0À55 mm. and 0À32 to 0À21 mm. respectively.