baber/WOPTO huggingface dataset:
Patent GB-781649-A (GB)
Title: Improvements in or relating to circuits for generating a d.c. voltage from recurrentpulses
Inventor: INGHAM WILLIAM ELLIS
IPC: H04N5/52
Filed: 1953-11-27
Abstract: 781,649. Automatic gain control. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Nov. 4, 1954 [Nov. 27, 1953], No. 32940/53. Class 40 (5). In a television A.G.C. circuit the demodulated video'signal (Fig. 2, not shown), is applied to a limiter 1 which removes the greater part of the video component and the resultant waveform is fed in such sense that the synch. pulses are positive-going, to an R.C. circuit 5, 6. The time-constant of the circuit 5, 6 is so chosen that there is produced across the resistance 6 a pair of pulses (Fig. 3, not shown), corresponding to each synch. pulse, the amplitude of each of which is substantially that of the synch. pulse and is independent of the slope of its sides. The negative-going pulses corresponding to the trailing edges of the synch. pulses are applied to a diode peak rectifier 10, the A.G.C. voltage being obtained across its load resistor 11. The limiting level may be varied in accordance with the signal amplitude by applying the A.G.C. bias to the limiter, via lead 14. In a modification, Fig. 4 (not shown), a further valve is interposed between the limiter and the R.C. circuit, being so biased as to pass only the tips of the synch. pulses. The circuit may alternatively be arranged so that the peak rectifier operates on the pulses corresponding to the leading edges of the synch. pulses, while the limiter may be omitted if the amplitude of the synch. pulses is appreciably greater than that of the rest of the signal. Specification 529,319, [Group XL], is referred to.
Patent GB-866176-A (GB)
Title: Improvements relating to metallurgical plant including rotary furnaces
IPC: C21C5/32
Filed: 1959-09-28
Abstract: 866,176. Refining iron. GUTEHOFFNUNGSHUTTE STERKRADE A.G. Sept. 28, 1959 [Sept. 26, 1958], No. 32944/59. Class 72 [Also in Group XII] In a duplex furnace system for metal refining, rotary furnaces 1 and 2 are disposed on turntables 3 and 4 respectively by which they may be swung into line with track extensions 13 and 14 co-operating with a turntable 11 carrying an oxygen lance 7 tiltably mounted on a carriage 9. Turntables 3 and 4 may be tilted and a ladle 6 runs on a car on a track 18 between the furnaces. A modification, Fig. 3 (not shown) has two mounted lances serving three furnaces.
Patent GB-319536-A (GB)
Title: Improvements in or relating to resilient suspension means for vehicles and the like
IPC: B60G21/05
Filed: 1928-11-10
Abstract: 319,536. Elkington, H. D., (Soc. Anon. S. E. C.). Nov. 10, 1928. Equalizing load on wheels and springs. - A resilient expansion device associated with the axles and adapted to be used in conjunction with the usual vehicle springs, acts both as a transverse balancing means when the vehicle tends to assume an undesirable transverse inclination. Adjustable connecting rods a are pivoted to each end of the axle A adjacent to the point of attachment of the elliptic or other spring expansion, and to arms b of bell-crank levers mounted on the frame T. The other arms c of the bell-crank levers are connected by rods d and a tension spring or equivalent device enclosed in the casing R. The bell-crank levers may be replaced by discs g, Fig. 4, which are held in frictioned contact with discs fixed to the frame.
Patent GB-900207-A (GB)
Title: Series operation of inverter circuits
IPC: H02M7/5383
Filed: 1960-09-26
Abstract: 900,207. Semi-conductor oscillator circuits. WESTINGHOUSE ELECTRIC CORPORATION. Sept. 26, 1960 [Oct. 6, 1959], No. 32977/60. Class 40 (6). Apparatus for converting a D.C. voltage into an A.C. voltage comprises a plurality of selfoscillating invertor circuits having their D.C. input terminals connected in series. Each invertor comprises a pair of transistors such as 14, 16 or other controlled semi-conductors, reciprocally coupled via windings on a common output transformer 12 feeding a load 4. Assuming transistor 14 is conductive, the voltages induced in windings 38, 40 tend to maintain transistor 14 conductive and 16 non-conductive. This condition is maintained until the core of reactor 26 saturates, when the increase in current in winding 28 and resistors 56, 58 develops voltages which reverse the conductive states of the transistors. The reversed state is maintained until the reactor 26 saturates in the opposite direction. The other pairs of transistors oscillate in synchronism. Capacitors such as 54 are connected across the D.C. inputs to reduce transients. The reactor 26 may have a square hysteresis loop.
Patent GB-964529-A (GB)
Title: Improvements in or relating to foam and water sprinklers
Inventor: NORTON ALBERT JAMES
IPC: B05B3/04
Filed: 1961-09-15
Abstract: 964,529. Fluid distributers. GEORGE ANGUS & CO. Ltd. Sept. 5, 1962 [Sept. 15, 1961], No. 33233/61. Heading B2F. A sprinkler valve comprises an inlet member 4, a helical member 10 for receiving fluid from the inlet member, a mixing chamber 14 for receiving fluid from the helical member, a Venturi chamber 16 communicating with the mixing chamber and a distribution plate 21 disposed at a distance from the Venturi chamber to disperse the fluid. The helical member 10 comprises two worms 13, starting diametrically opposite one another and each making half a turn. A cylindrical outer member 17 extends to form a spreading chamber 18, communicating with a space 19 which communicates with the outside through passages 20. The distributor plate is a disc held on the end of a post 22 and formed with baffle blades twisted at an angle to the plan of the plate of about 30 degrees. Fluid enters at the inlet and is rotated while passing through the helical member 10, and it leaves the chamber 14 and passes through the Venturi 16 still rotating. A slight vacuum is created at the extreme end of the Venturi which draws in air through the passages 20. The liquid thus aerated expands into the spreading chamber 18 and is forced downwards on to the radial baffle blades and distributed.
Patent GB-649645-A (GB)
Title: Improvements in or relating to the manufacture of hydrogencontaining synthesis gas
IPC: C01B3/36
Filed: 1947-12-17
Abstract: <PICT:0649645/III/1> Synthesis gas consisting essentially of carbon monoxide and hydrogen is produced, without substantial carbon formation, by reaction of carbonaceous material with oxygen in a reaction zone autogeneously maintained at a substantially uniform temperature of at least 2000 DEG  F. without external heating, by employing a substantially completely closed unobstructed and unpacked reaction zone whereof the inverse ratio of the internal surface to the surface of a sphere of the same internal volume is at least 0.65. The shape of the reaction zone should be such that the surface area is small compared with the volume and values of the ratio of length to radius to satisfy this requirement are quoted, e.g. for cylindrical vessels the ratio should be 0.67-10. Methane preheated to at least 800 DEG  F., and oxygen of 80 per cent purity, preheated to at least 600 DEG  F., are introduced, through concentric tubes of gas feeders 8, into an unobstructed unpacked refractory-lined cylindrical reaction zone 5 of vessel 1 to effect turbulent mixing entirely within the reaction zone, at 2000-2600 DEG  F. and 200-300 lbs. per sq. inch, in absence of catalyst.  The feeders may have water-cooled tips 13 and the reaction vessel may have cooling-coil 7.  The atomic ratio of oxygen to carbon in the feed is adjusted between 1-1.2 to give a methane content of the effluent gas of 0.5-5 mol. per cent. The effluent gas from reaction zone 5 passes through perforated baffles 3a, 3b, to cooling-zone 6 and is quenched, by waterspray 9, to 1000-1500 DEG  F. Finely-divided solid carbonaceous material such as coal, lignite or asphalt may be used with or without added steam. The oxygen may be in two portions, the major portion, e.g. 55-85 per cent, being premixed with the carbonaceous material and the minor portion mixed in the reaction zone.
Patent GB-989924-A (GB)
Title: Branched siloxane-alkylene oxide co-polymers
IPC: C08J9/00
Filed: 1963-08-22
Abstract: Copolymers consisting essentially of (1) 15 to 40% (by weight) of a siloxane moiety composed of SiO2 and (CH3)2SiO units in a molar ratio of from 1:20 to 1:50, and (2) 60 to 85% of polyalkylene oxide moieties of the formula (RO)nCH(CH2OCH3)2, in which each R is an ethylene or propylene radical, n is an integer from 20 to 65 inclusive, in the -(RO)nchain the ratio of ethylene oxide units to propylene oxide units being such that the C:O ratio is from 2.3:1 to 2.8:1, (1) and (2) being interconnected through SiOC linkages in which the C is a part of an alkylene oxide unit, there being on the average 4-alkylene oxide moieties attached to each siloxane moiety, may be made by reacting a chlorine-terminated branched siloxane liquid (3) with an alkylene oxide copolymer of the formula HO(RO)nCH(CH2OCH3)2 in the presence of a hydrogen halide acceptor, e.g. pyridine, a -picoline or trimethylamine, and preferably in an aromatic hydrocarbon solvent. Siloxanes (3) are best prepared by reacting SiCl4 with cyclic dimethylpolysiloxanes, preferably in the presence of a quart. ammonium halide as catalyst and a polar solvent. In a typical example (1) a mixture of dimethylsiloxane cyclics, SiCl4, dioctadecyldimethylammonium chloride and acetonitrile were mixed and heated at 80 DEG  to 83 DEG  C. for 72 hrs., with subsequent removal of solvent and volatiles to yield a chlorine-terminated siloxane which was then reacted with <FORM:0989924/C3/1> in toluene containing pyridine to form the desired water-soluble liquid copolymer.  Uses.-As cell control additives in polyurethane foams. Reactants for making conventional polyester and polyether based polyurethane foams are specified, and Example 4 describes polyurethane foams containing the above additives.
Patent GB-607891-A (GB)
Title: Refrigerating apparatus
IPC: F25B39/02
Filed: 1945-12-10
Abstract: 607,891. Making heat-exchangers. BURGESS, A. F. (Dole Refrigerating Co.). Dec. 10, 1945, No. 33339. [Class 83 (ii)] [Also in Group XIII] A cold plate for refrigerators comprises straight lengths 15 of rectangular pipe joined at the ends by welding thereto pre-formed tubular connectors 20 of circular or non- rectangular section to form coils C, D, which are enclosed between parallel side plates 16, 17, welded together at their edges. The ducts are spaced by brackets 40.
Patent GB-1524212-A (GB)
Title: Synthesis of salmon calcitonin
IPC: C07K14/575
Filed: 1975-08-11
Abstract: 1524212 Salmon calcitonin ARMOUR PHARMACEUTICAL CO 11 Aug 1975 [12 Aug 1974] 33347/75 Heading C3H A resin peptide containing the group -Gly-Thr(Bz)-Pro-NHCH(C6H5)-X A preferred resin has the formula H-Cys(R)- Ser(Bz) - Asn - Leu - Ser(Bz) - Thr(Bz)- Cys(R) - Val - Leu - Gly - Lys - Leu - Ser(Bz)- Gln - Glu(Bz) - Leu - His(V) - Lys(V) - Leu - Gln- Thr(Bz) - Tyr(W) - Pro - Arg(T) - Thr(Bz) - Asn- Thr(Bz) - Gly - Ser(Bz) - Gly - Thr(Bz) - Pro- NH.CH(C6H5)-X wherein X is a polystyrene resin cross-linked with divinyl benzene; Bz is optionally substituted benzyl or optionally substituted benzhydryl; T is nitro or tosyl; W is Bz, optionally substituted benzyloxycarbonyl or hydrogen; V is optionally substituted benzyloxycarbonyl; R is alkylthio or Bz, may be prepared by sequential condensation of the amino acids from L-proline to L-cysteine (32) on the resin, with protection of functional groups not partaking in peptide bond formation; and removal of the N-protecting group of the amino acid after each condensation; which is converted into peptides of formulae: H-Cys(R<1>)-Ser-Asn- Leu - Ser - Thr - Cys(R<2>) - Val - Leu - Gly - Lys- Leu - Ser - Gln - Glu - Leu - His - Lys - Leu- Gln- Thr - Tyr - Pro - Arg - Thr - Asn - Thr - Gly - Ser- Gly - Thr - Pro - NH2 wherein R<1> is n-alkylthio if R<2> is H, and R<1> is H if R<2> is n-alkylthio, preferably by treatment with hydrogen fluoride. In the examples; the 32 cycle condensation is as follows, with removal of the Boc group after each cycle: Ex. 1; 32) Boc-Pro-OH, 31) Boc-Thr(Bz)-OH, 30) Boc-Gly-OH, 29) Boc-Ser-(Bz)-OH, 28) Boc- Gly-OH, 27) Boc-Thr(Bz)-OH, 26) Boc-Asn- ONp, 25) Boc-Thr(Bz)-OH, 24) Boc-Arg(Tos)- OH, 23) Boc-Pro-OH, 22) Boc-Tyr(Bz)-OH, 21) Boc-Thr(Bz)-OH, 20) Boc-Gln-ONp; 19) Boc-Leu-OH, 18) Boc-Lys(Z)-OH, 17) Boc- His(Z)-OH, 16) Boc-Leu-OH, 15) Boc-Glu(Bz)- OH, 14) Boc-Gln-ONp, 13) Boc-Ser(Bz)-OH, 12) Boc-Leu-OH, 11) Boc-Lys(Z)-OH, 10) Boc- Gly-OH, 9) Boc-Leu-OH, 8) Boc-Val-OH, 7) Boc-Cys(SC2H5)-OH; 6) Boc-Thr(Bz)-OH, 5) Boc-Ser(Bz)-OH, 4) Boc-Leu-OH, 3) Boc-Asn- ONp, 2) Boc-Ser(Bz)-OH, 1) Boc-Cys(pCH3OBz)- OH. Ex. 2: As Ex. 1, except 24) Boc-Arg(NO2)- OH. Ex. 3: As Ex. 1, except 22) Boc-Tyr(2BrZ). OH. Ex. 4: As Ex. 1, except 11),18) Boc-Lys- (2C1Z)-OH. Ex. 5: As Ex. 1, except 7) Boc-Cys(pMeOBz)- OH. Ex. 6: As Ex. 1, except 7) Boc-Cys(SCH3)-OH. Ex. 7: As Ex. 1, except 1) Boc-Cys(3,4DiCH3- Bz)-OH. Ex. 8: As Ex. 1, except 1) Boc-Cys(Bz)-OH, 7) Boc - Cys(SCH3) - OH, 11) Boc - Lys(2ClZ) - OH, 18) Boc - Lys(2ClZ) - OH, 22) Boc - Tyr(2 - BrZ)- OH, 24) Boc-Arg(NO2)-OH. Ex. 9: As Ex. 1.
Patent GB-748440-A (GB)
Title: Schiff bases of mono- and dinitro-2-acylthiophenes with n-amino-heterocyclic compounds
IPC: C07D409/12
Filed: 1953-12-01
Abstract: The invention comprises compounds of the formula <FORM:0748440/IV(a)/1> wherein R is hydrogen or a nitro-group, R1 is hydrogen or a lower alkyl radical having 1 to 8 carbon atoms inclusive, NR2 represents a saturated five or six-membered heterocyclic ring containing one or two nuclear nitrogen atoms and which may contain one nuclear oxygen atom.  Such compounds are obtained by heating a mono- or di-nitro-2-acylthiophene with an N-amino derivative of a heterocyclic compound with a five or six-membered ring containing one or two nuclear nitrogen atoms and which may also contain a nuclear oxygen atom, in a solvent, or with the hydrochloride of the N-amino-derivative in the presence of an alkali metal acetate in an aqueous solution.  Radicals which -NR2 may represent are 1-hydantoyl of the formula <FORM:0748440/IV(a)/2> wherein R3 and R4 are alike or different and may be hydrogen or lower alkyl and X represents oxygen or sulphur, or -NR2 may represent 1-piperidyl, 4-morpholyl or 1-pyrrolidyl.  In Examples:  (1) 5-nitro-2-thiophenecarboxaldehyde is refluxed in aqueous alcohol containing sodium acetate with 1-amino-hydantoin hydrochloride to give 1-[N-(5-nitro-2-thenylidene)-amino]-hydantoin; (2) 5-nitro-2-thiophenecarboxaldehyde and 1 - amino - 2 - thiohydantoin are refluxed in alcohol to give 1-[N - (5 - nitro - 2 - thenylidene) - amino] - 2-thiohydantoin.  Similarly prepared are (3) 1-[N - 3,5 - dinitro - 2 - thenylidene) - amino] - 5-methyl-hydantoin; (4) N-[5-nitro-2-(a -ethyl)-thenylidene]-1-amino-piperidine and (5) N-[3,5-dinitro - 2 - (a  - methyl) - thenylidene] - 4-amino-morpholine.
Patent GB-1519453-A (GB)
Title: Tube extraction equipment
IPC: B25B27/02
Filed: 1974-07-29
Abstract: 1519453 Removing boiler tubes REYROLLE PARSONS Ltd 25 July 1975 [29 July 1974] 33435/74 Heading B4C Tube extraction equipment for removing tubes 3 from a tube plate 1 comprises a mandrel 10 co-operating with two or more internally tapered collets 11, 12 these being mounted in a frame 8 such that movement of the mandrel 10 towards the tube by rotation of a nut 23 causes the mandrel 1 to force figured outside surfaces of the collets into contact with the tube. Concentric with tube 8 is an externally threaded tube 11 and rotation of a nut 26 threaded thereon by means of drive key 31 and chain and pinion system 28, 29 causes the mandrel and collets to pull out the tube 3. Spacer pieces 32 projecting from the frame 8 into another tube 6 prevent rotation of the frame. In a second embodiment a simpler type of extractor 13 described having a single tube with collet retaining insert therein.
Patent GB-1235560-A (GB)
Title: Mold lubricating means for glassware making machines
Inventor: MATTOS ARTHUR
IPC: C03B40/027
Filed: 1969-07-03
Abstract: 1,235,560. Glass manufacture. PRODUCTION SPECIALTIES CO. 3 July, 1969, No. 33514/69. Heading C1M. In an apparatus for making glassware which comprises a blank mold 16, a blow mold and a mechanical transfer device 19 for transferring a parison to the blow mold from the blank mold the transfer device carries lubricant spray nozzles 35 for spraying the interior surfaces of the blank mold without interrupting the movement of the apparatus. The lubricant is supplied under pressure from a reservoir via a valve 30. The valve 30 may be activated either pneumatically or electrically, the pneumatic line or electric circuit including in series a manually operated valve 40 or switch and a valve 41 or switch operated by a projection 44 mounted on a timing drum 11. The drum 11 controls the sequence of operations of the apparatus and the projection 44 is so situated that lubricant is sprayed when the device 19 is moving back from the blow mold. A double mold machine is disclosed.
Patent GB-1359389-A (GB)
Title: Grease resistant non-sticking coatings and their application to sheets of cellulosic material
IPC: C09D7/12
Filed: 1972-07-18
Abstract: 1359389 Packages LOWE PAPER CO 18 July 1972 33575/72 Heading B8C [Also in Division C3] Cellulosic containers (e.g. made of paperboard) for use in packaging bakeable foodstuffs and which can be used as the cooking container therefor, are provided with a greaseresistant non-stick coating by coating the material from which the container is made with a composition comprising a binder such as polyvinyl alcohol, at least 2% by wt. of a Werner type chromium complex and water, the coating then being dried. The coating permits easy removal of the food from the container after it has been cooked. Other binders specified are carboxymethyl cellulose, sodium alginate and starch.
Patent GB-1023357-A (GB)
Title: Beryllium ore extraction process
Inventor: BACH RICARDO OTTO
IPC: C22B35/00
Filed: 1963-08-23
Abstract: Beryllium chloride is prepared by the reaction of an oxidic compound of beryllium with SiCl4 or BCl3, preferably in the presence of an oxide or salt of an alkali metal or alkaline earth metal other than beryllium.  Oxides, halides and carbonates of Na, Mg and Ca including mixtures thereof, and particularly CaCl2, are mentioned.  The oxidic compound may be an ore which is first ground to substantially finer than 100 mesh (Tyler), particularly beryl pulverized so that 90% by weight is less than 100 microns in size.  The ratio of ore to oxide or salt is 1 : 1 to 5 : 1 and reaction is carried out at 1000-1550 DEG  C. Argon may act as a carrier gas for the SiCl4 or BCl3, and BeCl2 is isolated as a gas.
Patent GB-996989-A (GB)
Title: A process for the surface treatment of a semi-conductor unit
IPC: H01L23/10
Filed: 1962-08-31
Abstract: 996,989. Lapping. SIEMENS-SCHUCKERTWERKE A.G. Aug. 31, 1962 [Aug. 31, 1961], No. 33624/62. Heading B3D. [Also in Division H1]  At least a part of one face of a semi-conductor unit is lapped using a solid lapping agent in glycerine. An aluminium disc 3 is laid upon a molybdenum disc 2 and a wafer of P-type silicon 4 applied to the aluminium surface followed by a gold-antimony foil 5. These parts are compacted in graphite powder and heated under pressure in an alloying furnace. A silver foil 7 applied to a further molybdenum disc 6 is then applied under pressure to the gold-semi-conductor eutectic 5, and the whole heated. The faces of the silver layer 7 and of the eutectic 5 which are to contact one another are lapped before they are joined. A raised, e.g. honeycomb, pattern may be impressed in the silver layer 7 before it is lapped. The solid lapping agent may be aluminium oxide or silicon carbide. The glycerine may be thinned with ethyl alcohol or methyl alcohol. The agent and glycerine are washed off after lapping by distilled water, which may be warmed. Alcohol may be used for re-washing.
Patent GB-898054-A (GB)
Title: Improvements relating to castors
Inventor: SHINGLER ROY
IPC: B60B33/04
Filed: 1959-10-06
Abstract: 898,054. Castors. HUGHES Ltd., GEO. H. Oct. 6, 1960 [Oct. 6, 1959], No. 33850/59. Class 52(1) A castor has a vertically swivelling member with body part 5 incorporating a screw tapped socket 6 to receive a boss 7 extending from an arm 8 swingable in a vertical plane and carrying a castor wheel 14, the boss 7 being furnished with a rectangular aperture 7b to receive one end of a stack of torsion spring plates 9 the other end of which is received in a rectangular aperture 5a in member 5. A stop 12 limits movement of arm 8 under excessive loads.
Patent GB-1037138-A (GB)
Title: Improvements in or relating to copying attachments
IPC: B23Q35/10
Filed: 1964-08-19
Abstract: 1,037,138. Copy-turning. A. AREGGER. Aug. 19, 1964 [Aug. 24, 1963], No. 33880/64. Headings B3B and B3T. A copying attachment in a machine tool comprises a fixed carrier 1 carrying a movable tool holder 14, a template holder carriage 19 sliding telescopically relatively to the carrier and carrying a ring 192 to embrace the work and support the carriage, and a movable tracer. The tool-holder 14 is moved against a spring 15 by a lever 16 oscillated by a tracer rod 17 engaging the template 18. The tracer can be set for rough-machining by rotating a handle 162 to allow the tracer to engage a flat 164 on a cam 163. The head 170 of the tracer rod is screw-threaded so that rotation thereof adjusts the depth of cut. The template holder 19 carries supports 190 to enable a machined workpiece to be used as a template. The ring 192 rotates with the work in a bearing in a support arm 191. The device may be used in connection with a lathe tailstock R or turret. A guide bush 21, Fig. 4 (not shown), supports the work adjacent the tool. In operation, the attachment, fastened to the tailstock R, is traversed towards the chuck B so that, first, the ring 192 slides over the work W up to the chuck face, and then the carrier slides on the carriage 19 and the work is machined by the tool D. At the end of the traverse, the tracer drops into a recess in the template, thus withdrawing the tool and locking the parts together ready for withdrawal. A centre drill Z may be fitted in the tailstock. In a modified use, the attachment is fitted to a drill spindle and rotates about a stationary workpiece W, Fig. 2 (not shown), In a modified attachment, the tool 23, Fig. 7 (not shown), is inclined and a damping piston 29 is provided to ensure a smooth feed of the tool.
Patent GB-767784-A (GB)
Title: Improvements in fluid seals between relatively movable members
IPC: F16J15/32
Filed: 1954-11-23
Abstract: 767,784. Piston packing; stuffing box substitutes. BENDIX AVIATION CORPORATION. Nov. 23, 1954 [Dec. 21, 1953], No. 33940/54. Classes 122 (1) and 122 (5). Packing for use be. tween relatively movable members, such as a piston 11 or piston rod and a cylinder 10 or a rotary shaft and its housing, comprises a continuous, sealing ring 15 slidably fitted in an annular groove 11a in one of the members and urged into sealing contact with the other member by a continuous resilient ring 16 compressed between the bottom of the groove and the sealing ring which is radially thicker at its end portions than at its centre portion and is made of stiffer material than the resilient ring 16. The rings 15 and 16 are preferably of polytetrafluoroethylene and silicone rubber respectively.