baber/WOPTO huggingface dataset:
Patent GB-897444-A (GB)
Title: Improvements in or relating to valved ducting
Inventor: BLACKBURN GEORGE
IPC: G21D1/02
Filed: 1958-07-22
Abstract: 897,444. Pipe systems. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. July 17, 1959 [July 22, 1958], No. 23593/58. Class 99(2). [Also in Group XL(a)] A coaxial duct between a nuclear reactor and a heat exchanger has a flow control valve 11 in the inner pipe of the duct, longitudinal ribs 6 joining the two pipes near the valve, an extension of the outer pipe, and a flow control valve in the extension. The inner pipe may have internal thermal insulation such as layers of light-gauge stainless steel. The inner pipe shown in Fig. 1 has a right-angle bend leading into the heat exchanger, while the outer pipe extends across the heat exchanger to a housing 21 containing a butterfly valve 22 to control flow from heat exchanger to reactor. Fig. 3 shows a modification in which the outer pipe leads into a passage 57 running round the heat exchanger to a poppet valve; the passage decreases in cross-section toward the outer pipe.
Patent GB-315128-A (GB)
Title: Improvements in or relating to the production of lead oxide
IPC: C01G21/06
Filed: 1928-08-16
Abstract: 315,128. Price, G. B., and Quirk, Barton, & Co., Ltd. Aug. 16, 1928. Litharge.-A lead-oxide pot comprises a horizontally operating surface sweeper passing over the surface of the molten lead and a revoluble agitating-device for the oxide scum rotating in a plane out of the horizontal, for instance in a vertical plane. As shown in Fig. 1, the surface sweeper may comprise a circular flanged screening plate 17 carrying large and small sweeps 19, 18 respectively, combs 21 being incorporated in the former to assist in breaking up the dross. The sweeper is mounted on a shaft 11 which may carry, a drum at its upper end connected through links to a pair of angularly disposed cranks mounted on a common shaft, whereby oscillation of the shaft through say 90‹ may be effected. The agitating device may comprise pairs of oppositely rotating beaters 8 arranged above the surface of the molten lead and adapted to be driven from pulleys 9 through shafts 5 and gearing 7. Water-cooled bearings 6 for the shafts 5 may be used. Pipes 22 serve to supply hot air or steam to the interior of the pot. Litharge is drawn off through an outlet 23, and coarse particles thereof or uncharged metallic lead intermixed therewith may be returned to the pot through pipes 24, 25.
Patent GB-1448299-A (GB)
Title: Blast furnace evaporative cooler
IPC: F27D1/12
Filed: 1974-05-28
Abstract: 1448299 Blast furnace cooler VSES N-I I PROEKT INST PO OCHISTKE TEKHNOI GAZOV STOCH VOD I ISPOLZOVAN VTORICH ENERG PREDPRI CHER METAI 28 May 1974 [25 May 1973] 23679/74 Heading F4B A stove cooler for a blast furnace has inlets 7, 9, 11 and 13 and outlets 8, 10, 12 and 14 for the circulation of a coolant through pipes 3, 4, 5 and 6 respectively. The projection 2 of the cooler has a cooling pipe 15 which can be arranged so that coolant ascends from the inlet 16 to the outlet 17. When the projection 2 deteriorates in service use the pipe 15 is disconnected from the system. The stove, however, remains in use as the upper part is still adequately cooled by the coolant passing through the pipes 4 and 6.
Patent GB-598277-A (GB)
Title: Wave-signal receiver
IPC: H03D11/02
Filed: 1945-09-13
Abstract: 598,277. Radio receiving circuits. HAZELTINE CORPORATION. Sept. 13, 1945, No. 23684. Convention date, Oct. 13, 1944. [Class 40 (v)] A radio receiver is automatically disabled on failure of the automatic gain control arrangements, or on failure of a local oscillator. Fig. 2 shows the invention applied to disabling the output of a super-regenerative receiver forming part of a transponder beacon, on failure of the automatic gain control arrangements. A receiving aerial 65<1> is coupled to the frequencydetermining circuit 11<1>, 12<1> of a superregenerative oscillator 10<1> having a quench frequency supplied by an oscillator 70. The received signal is detected in diode 21<1> and fed through pulse amplifier 29 and repeater 50<1> to trigger a normally quiescent pulse transmitter. 54<1> which radiates a coded response. The output from 29 is also fed to an automatic gain control amplifier 30<1> which is made sensitive to the quiescent noise output from 29 and which accepts only a small part-of the received signal. The output from 30<1> is fed to a diode 40<1> to produce across resistance 42<1> a voltage corresponding to the quiescent noise which is taken as a measure of the gain of valve 10<1>. This bias is fed to control the conductivity of a triode 32, and hence to vary the potential fed from high tension source +B through smoothing circuit 33 ... 37 to the anode of oscillator 10<1> to control its gain. The circuits are arranged so that in the absence of a received signal, the quiescent signal output produces a gain control potential such that tube 10' has the optimum operating bias. The potential at the anode of 32, together with resistances 61, 62 connected between +B and - B normally ensure that valve 60<1> is cut off. If, however, the A.G.C. potential fails, valve 60<1> conducts and shunts the screen potential of repeater 50<1> to isolate the receiver from the transmitter 54<1>. This prevents false firing in case the gain of the receiver should rise sufficiently for the quiescent noise output to trigger the transmitter. Valve 63 acts in a similar manner to isolate the receiver when the normal cut-off bias on its grid is removed by failure of the quench oscillator 70. Instead of isolating the receiver by cutting off repeater 50<1>, valves 60<1> and 63 may be arranged to cut off oscillator 10<1>. Also, the A.G.C. voltage may be applied to the quench oscillator 70. The invention may be applied to a simple regenerative receiver without a quench oscillator (Fig. 1, not shown) or to a superheterodyne receiver. Specification 598,278 is referred to.
Patent GB-599326-A (GB)
Title: Improvements in and relating to hair curlers
IPC: A45D2/18
Filed: 1945-09-14
Abstract: 599,326. Hair-curling appliances. LAKE, Ltd., H. W., and DRAKE, R. O. Sept. 14 1945, No. 23793. [Class 131] A hair curler comprises a metal strip 5. bent to form two overlapping arms and with a tubular outer covering 6 of thermoplastic material which is of greater cross-sectional area than the strip 5 so that a pneumatic cushion is left therebetween, the ends of the tube extending beyond the ends of the strip and being sealed by heat, pressure or an adhesive at 8. The outward pressure of the air in the space 7 when the curler is in use enhances the curling effect of the device. In a modification, the tube may be sealed at the bend 9 so that each arm has an independent pneumatic cushion.
Patent GB-1336369-A (GB)
Title: Homo polymerisation of vinyl carbazole
IPC: H01B3/44
Filed: 1971-04-19
Abstract: 1336369 Precipitation polymerization of vinyl carbazole G A F CORP 19 April 1971 [12 March 1970] 23799/71 Heading C3P Vinyl carbazole is polymerized in an organic diluent, which is a solvent for the monomer and a non-solvent for the polymer formed, at -50‹C to + 100‹C in the presence of a cationic catalyst to form a discrete particulate product. The diluents are aliphatic and cycloaliphatic hydrocarbons, mixtures thereof, and mixtures thereof with carbon tetrachloride or aromatic hydrocarbons, and carbon tetradiloride. In examples vinyl carbazole, which contains anthracene as an impurity, is polymerized in cyclohexane, CCl 4 , heptane/CCl 4 , heptane/benzene, or heptane, and in the presence of BF 3  etherate, AlCl 3  or toluene sulphonic acid.
Patent GB-242926-A (GB)
Title: Device for indicating and determining the position and extent of sparking and other disturbances in transformers, choke coils, and other electrical apparatus operating in an insulating medium
IPC: H01H33/55
Filed: 1925-03-24
Abstract: 242,926. Buchholz, M. March 24, 1925. Addition to 198,936. Detecting faults.-To ascertain the nature of sparking and other disturbances occurring in electric apparatus immersed in an insulating liquid, the device of the parent case is modified by the gases of decomposition formed by the sparking being collected in a graduated glass cylinder a. The cylinder a may be connected in a pipe b which is connected between a transformer and a rectifying vessel. An indication of the nature of the disturbances is given by the colour &c. of the gas. The Figure shows the gas-collecting apparatus combined with two switches c and i which may be connected in an alarm or cut-out circuit. The member c is a float which normally rests against an annular stop e, but gas bubbles rising in the cylinder a are trapped by the stop e causing liquid below the stop to be displaced and the float c to sink till a member carried by it bridges contacts f. The gas then escapes past the stop e and is collected in the top of the cylinder. The member i is also a float which is adapted to engage a contact k when the production of gas bubbles causes it to oscillate or when the liquid level in the pipe b sinks, i.e. through the transformer casing leaking.
Patent GB-681054-A (GB)
Title: Polyimides
Filed: 1950-09-29
Abstract: The invention comprises N-acyl polyimides of polycarboxylic acids, having the formula <FORM:0681054/IV (b)/1> where R and R1 are organic radicals and X is 2 or more, preferably 2.  These are prepared by condensing at least X mols. of a dicarboxylic acid imide R(CO)2NH, preferably as alkali metal salt, with a polycarboxylic acid halide R1(COCl)x or R1(COBr)x.  If free imide is used, an acid acceptor is preferably added; a solvent or diluent may also be present.  Examples show the preparation of sebacyl bis-phthalimide, sebacyl bis-succinimide, isophthalyl bis-succinimide and terephthalyl bis-phthalimide.  There may also be used halides of glutaric, adipic, pimelic, suberic, azelaic, brassylic, maleic, glutaconic, dihydracrylic, diglycollic, thiodiglycollic, hydromuconic, 1 : 2 : 4 - hexanetricarboxylic, tricarballylic, aconitic, dimalonic, diphenic, phenylenediacetic, phenylenedipropionic, trimesic, naphthalenediacetic, naphthalenedicarboxylic and naphthalene-1 : 4 : 5 : 8-tetracarboxylic acids; also of 2 : 2 : 6 : 6-tetra-(b -carboxyethyl)-cyclohexanone, 1 : 2 : 3 : 3 : 4 : 5-hexa - (b  - carboxyethyl) - cyclopentadiene, bis-[3 : 3 : 5 : 5-tetra-(b  - carboxyethyl) - cyclohexyl] and tetracarboxy-diphenyls; also substituted derivatives of the above. Other specified imides are oxalimide, glutarimide, maleimide, naphthalimide, naphthalene-2 : 3-dicarboximide, cyclohexane-1 : 2-dicarboximide and those obtained from the products of Diels-Alder condensation of maleic anhydride. The imides may contain inert substituents such as alkyl, aryl, aralkyl, alkoxy, aryloxy, chloro, nitro and cyano groups.
Patent GB-796010-A (GB)
Title: Improvements in gas sampling apparatus
Inventor: WILSON HAYDN
IPC: G01N1/22
Filed: 1953-08-28
Abstract: <PICT:0796010/III/1> <PICT:0796010/III/2> The intake end 7 of a gas sampling probe 8, which is placed in a gas stream, with direction of flow F, has a stream line form and a gas intake 11 on the downstream or trailing side of the probe so that solid material is not drawn into the probe and consequently into the analysis apparatus.  As in Fig. 4 the intake may comprise a tube of streamline form with an opening 14 on the downstream or trailing side in relation to the direction of gas flow.
Patent GB-596432-A (GB)
Title: Improvements in or relating to the mounting of cathode ray tubes in optical apparatus
IPC: H04N5/74
Filed: 1944-11-30
Abstract: 596,432. Cathode-ray tubes. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Nov. 30, 1944, No. 23889. Convention date, Nov. 30, 1943. [Class 39 (i)] [Also in Group XX] A cathode-ray tube 3 is held in a predetermined position with respect to a concave spherical mirror 7 and and correcting plates 9 correcting for spherical aberration, for optical projection purposes, by engaging the screen end 5 of the tube against a mount 13. The mount 13 comprising an annulus on single arm 15, or alternatively the tips of three radially-arranged arms 15, is adjustable in position to determine the optimum position of the screen end 5. In another embodiment, Fig. 4, the mount is constituted by the mirror 47 itself, the optical system comprising in addition to the concave mirror 47 and correcting plate 45, a plane mirror 49. The cathode-ray tubes are held against the mounts by springs 31.
Patent GB-875530-A (GB)
Title: Improvements in concentrated latex
IPC: C08C1/02
Filed: 1957-07-30
Abstract: The rate at which Hevea brasiliensis latex or a concentrate thereof matures, i.e. attains the mechanical stability suitable for industrial use, is increased by maintaining the latex in aerobic condition and adding, preferably before the aerobic treatment, a substance which interacts with the peroxidic groups formed in the rubber by the aerobic treatment and so counteracts oxidative degradation.  The aerobic condition may be obtained by agitation of the latex in the presence of a controlled amount of air or oxygen. The added substances are exemplified by aromatic diamines such as benzidine, the phenylenediamines and polyalkylene polyamines, e.g. tetraethylene pentamine, which favour development of cross-linking in peroxidized olefines, dior poly-hydric phenols such as di-tert. butyl hydroquinone which inhibit chain-scission in peroxidized olefines, and sequestering agents such as ethylenediamine tetra-acetic acid. Specification 869,283 is referred to.
Patent GB-1313621-A (GB)
Title: Water-soluble tetrapolymers
IPC: C08F220/12
Filed: 1971-04-19
Abstract: 1313621 N - vinyl lactam - acrylic tetrapolymers GAF CORP 19 April 1971 [18 March 1970] 24214/71 Heading C3P Tetrapolymers are obtained from (a) an N- vinyl lactam, (b) an alkyl acrylate ester, (c) an alkyl methacrylate ester and (d) an unsaturated carboxylic acid by conventional free-radical polymerization, and converted to the salt form. In examples N-vinyl-2-pyrrolidone/ethyl acrylate or a mixture thereof with butyl acrylate/ methyl methacrylate/acrylic acid tetrapolymers are obtained using benzoyl peroxide in isopropylalcohol, and neutralized with sodium hydroxide. Uses.-Films, coatings, adhesives, textile sizes; hair sprays and sand core binders in rocket cases.
Patent GB-317644-A (GB)
Title: Improvements in carpet sweepers
IPC: A47L11/33
Filed: 1928-08-23
Abstract: 317,644. Entwisle & Kenyon, Ltd., and Townley, N., (Representative of Townley, W.). Aug. 23, 1928. Carpet-sweepers.-In carpet-sweepers having mechanism for opening and closing the dust-pans, as described in Specification 18397/04, in which the pans A, Fig. 1, are connected by a wire a tc a lever B pivotally connected to an arm C, means are provided for locking the arm in its depressed position to hold the dust pans open. In the construction shown in Fig. 3, the operating arm C is formed with a recess c for engagement with the finger plate D when the arm has been depressed and moved laterally. In the modification shown in Fig. 5, the recess c is formed on a flange c<1> forming part of the arm c, the flanged arm being guided in slots d, d<1>.
Patent GB-947776-A (GB)
Title: Improvements in multi-pin, plug-and-socket, electric couplings
IPC: H01R13/645
Filed: 1960-07-12
Abstract: 947,776. Two-part couplings. F. G. BAC. July 12, 1960, No. 24319/60. Heading H2E. In a multi-pin plug-and-sooket unit male member 1 which contains connection sockets (not shown) is bayonet connected to female member 4 which contains connection plug 7, by coupling studs on sleeve 2 engaging in slots 6; and correct coupling is ensured by keys 17 and 12 on the respective members, each fitting a longitudinal groove 15, 14 on the other member. Key 12 and a projection 13 are carried by circular blade 11 fitting in groove 9 in female member 4, and projection 13, fits in one of six short locating slots 10 around the internal periphery of member 4 according to the desired position of key 12 which fits in groove 15 in male member 1. Similarly, a circular blade 16 in the male member has projection 18 which fits in one of six short locating slots around the internal periphery of member 1 according to the desired position of key 17 which fits in groove 14 in female member 4. The bayonet coupling has a ratchet action provided by stud 20 on blade 16, Fig. 6 (not shown), falling into holes in sleeve 2.
Patent GB-876834-A (GB)
Title: Improvements in or relating to rotary machines for printing on fabrics
IPC: B41N10/02
Filed: 1959-07-15
Abstract: 876,834. Printing machines. GILLET-THAON, ETS GILLET & FILS ET BLANCHISSERIE & TEINTURERIE DE THAON REUNIS. July 15, 1959 [July 15, 1958], No. 24340/59. Class 100(2) [Also in Group IX] In a rotary machine for printing on fabrics, of the kind comprising a back grey, i.e. a web of material interposed during printing between the fabric to be printed and an endless apron, the warp and weft threads of the back grey each consist of a monofilament of a synthetic material, e.g. nylon. The weave of the back grey provides openings between the warp threads and the weft threads of the order of one square millimetre in area. The fabric 2 to be printed is fed from a supply roll 1 round an impression roller 4a where it is printed by two printing rollers 4b, 4c, and is thereafter led out of the machine round a roller 30. Interposed between the fabric 2 and the impression roller 4a is an endless woollen apron 6, and between the apron 6 and the fabric 2 is an endless back grey 5 woven in accordance with the invention. After leaving the printing device the apron and the back grey travel together over guide rollers 31, 32 and then separate, the apron 6 passing through a drying device 7 and then back to the printing device and the back grey 5 passing round guide rollers 33 into a washing and drying device 8. In the device 8 the back grey passes first through a warm water tank 12 after which it is pressed between rollers 13 and washed by sprays 15 before and after entering a tank 14. The back grey is then brushed by rotating nylon brushes 18 before immersion in cold clean water in a tank 17. Moisture is removed from the back grey by squeeze rollers 20 and rotary beaters 21 after which it is fed round guide rollers 35 into a chamber 9 where the drying is completed by warm air blown from nozzles 22. The dry back grey is fed back to the printing device round rollers 36.
Patent GB-1353248-A (GB)
Title: Removal of acidic gases
IPC: C10K1/12
Filed: 1971-04-19
Abstract: 1353248 Desulphurizing gases STONE & WEBSTER ENG CORP 19 April 1971 [20 March 1970 18 Jan 1971] 24424/71 Heading C1A H 2 S, CO 2 , carbonyl sulphide, low molecular mercaptans and mixtures thereof are removed from gases which do not contain SO 2  by treating the gases with aqueous sodium and/or potassium hydroxide; reacting the resultant liquid with aqueous sulphuric acid to liberate the acidic gases; stripping the liberated acidic gases and regenerating the sulphuric acid, which may contain sulphate and the alkali metal solution by electrolysis for recycling to the process.
Patent GB-695885-A (GB)
Title: Motor vehicle licence holder
Inventor: KEE JOSEPH
IPC: B60R13/10
Filed: 1950-10-06
Abstract: 695,885. Licence holders. CLYDESMUIR PRECISION & GENERAL ENGINEERING CO., Ltd. Nov. 28, 1951. [Oct. 6, 1950] No. 24428/50. Class 73. A licence holder 1 comprises a shallow rectangular box having an aperture 5 and a slit 1<SP>1</SP>. A licence is fitted between a ledge 3 and abutment 4 of a member 2 and inserted through the slit 1<SP>1</SP>. The parts 1, 2 may be of metal or plastic and may be transparent.
Patent GB-837893-A (GB)
Title: Metal ceramics
Inventor: MOORE NORMAN CLEMENT
IPC: C22C1/10
Filed: 1955-08-25
Abstract: A metal-ceramic is made by subjecting to heat and pressure in a graphite die a mass composed of a powder mixture of a metal and at least one refractory oxide with at least a part of the surface of the mass in contact with powdered zirconia.  The mass may be formed by chromium and alumina or of iron and alumina and may be hot pressed at a temperature of at least 1500 DEG C. and under a pressure of at least 1 ton/sq.in., e.g. 1-5 tons/sq./in.  In an example a layer of zirconium powder not less than 0.1 in. thick is laid over the bottom punch of a graphite die.  Chromium-alumina powder mixture is filled into the die followed by a further layer of zirconia.  A pressure of 2 1/2 tons/sq.in. is applied and the temperature is raised to 1600 DEG C.ALSO:A metal-ceramic is made by subjecting to heat and pressure in a graphite die a mass composed of a powder mixture of a metal and at least one refractory oxide with at least part of the surface of the mass in contact with powdered zirconia, which during the heating migrates into the mass.  The mass may be formed of chromium and alumina or of iron and alumina and may be hot pressed at a temperature of at least 1500 DEG C. and under a pressure of at least 1 ton/sq. in., e.g. 1-5 tons/sq. in.  In an example a layer of zirconia powder not less than 0,1 in. thick is laid over the bottom punch of a graphite die.  Chromium-alumina powder mixture is filled into the die followed by a further layer of zirconia.  A pressure of 2 1/2 tons/sq. in. is applied and the temperature is raised to 1600 DEG C.
Patent GB-1147841-A (GB)
Title: Film projection apparatus
IPC: G03B1/42
Filed: 1966-06-01
Abstract: 1,147,841. Cine projectors. BELL & HOWELL CO. June 1, 1966 [June 7, 1965], No.24447/66. Heading G2E. In a sprocket-less cine projector in which no film loops are formed, the film 30 is driven solely by engagement with shuttle tooth 50, film tension being maintained constant by means of upper and lower threading assemblies 26 and 28, on either side of gate 40. Upper assembly 26 comprises film guide 56, tension assembly 71, and snubber 81. Guide 56 includes rollers 36, 38 at each end of channel members 60, 62 on a plate 64 pivoted on shaft 54 extending from a vertical support plate. Tension assembly (71), Fig.6 (not shown), slidably receives arm (80) from plate (64) between springs (74, 76) on a shaft (78), while snubber (81), Fig.3 (not shown), has a link (82) pivoted at shaft (85) at one end and carrying a roller (34) at the other end and is biased counter-clockwise by torsion spring (88). Lower assembly 28 is similar to the upper assembly, but does not include a snubber, and has a film guide 130 pivoting at 132. In operation, the intermittent movement of film 30 through gate 40 is absorbed by springs (76) and (88) and the pivoted motion of plate 64 and link 82, the upward movement of roller 34 or link 82 as film tension decreases serving to draw film from the supply reel against a slip clutch. Automatic film threading A handle on shaft 84 is manually turned to rotate link (82) and roller 34 clockwise against spring (88) until the link engages a spacer on shaft 66 and the whole guide 56 is turned clockwise to engage roller 36 with rubber-faced drive wheel 140. The link is held by an arm 164 on latch 160. The upper assembly may be returned to the projection mode:  a) manually b) semi-automatically as film tension increases due to the speed differential between wheel 140 and the shuttle drive, whereby roller 38 moves downward and tilts assembly 56 anti-clockwise. c) automatically, in which case roller 38 is replaced by a roller (172) Figs. 7 and 8 (not shown), on an unlatching link (176), pivoting on shaft (54), whose slot (178) slidably engages pin (168) on plate (64). Increasing film tension turns link (176) counter-clockwise to disengage arm 164 from latch 160. Different films such as standard-8 on super-8 may be used in the projector merely by changing the shuttle pitch and the framing aperture.