baber/WOPTO huggingface dataset:
Patent GB-172945-A (GB)
Title: Improved cover for pneumatic tyres
IPC: B60C5/00
Filed: 1921-11-29
Abstract: 172,945. Viel, V. Dec. 14, 1920, [Convention date]. Jackets and covers. - A tyre cover for use with an ordinary air-tube a consists of laminated thin metal strips b the edges e of which may be bolted &c. directly to the wheel rim. or be folded around cores w of leather, rubber or metal. The edges of the metal strips may be welded or riveted together, and those of the intermediate strips may be notched to facilitate bending. The Specification as open to inspection under Sect. 91 (a) (a) describes also a cover formed of a single layer of metal. This subject-matter does not appear in the Specification as accepted.
Patent GB-193951-A (GB)
Title: Improvements in cigarette and cigar holders
IPC: A24D1/04
Filed: 1921-11-30
Abstract: 193,951. Stone, M. M. J. Nov. 30, 1921. Cigar and cigarette holders.- Tapered, interfitting members A, B are held together by a sliding ring C. The member A is provided with a mouthpiece ring F and the member B with a boss D to facilitate separation of the rearwards.
Patent GB-986286-A (GB)
Title: Process for making polyester resins
Inventor: DOEDENS JAMES DIRK
IPC: C08G63/40
Filed: 1962-08-21
Abstract: Linear polyesters are made by reacting (a) diphenyl ether containing one chloromethyl or bromomethyl group in each aromatic nuclear and (2) an alkali metal salt of a dicarboxylic acid containing at least four carbon atoms, e.g. succinic, glutaric, adipic, pimelic, butynedioic, phthalic or terephthalic acid.  The reaction may be effected in the presence of an organic solvent or water, and in the latter case the resinous material which form may be washed with water and then heated above its melting point under reduced pressure to complete the polyesterification.  In the example, 4,41-di-(chloromethyl)diphenyl oxide was reacted with sodium phthalate.
Patent GB-1443152-A (GB)
Title: Respiratory apparatus
IPC: A61M16/00
Filed: 1972-07-10
Abstract: 1443152 Pipe couplings PENLON Ltd 10 July 1973 [10 July 1972] 32215/72 Heading F2G [Also in Division A5] A ventilator comprises a coupling unit including an air inlet pipe 1, an exhaust pipe 2, forward and return pipes 4, 5 for connection to a  patient, a pipe 3 for connection to a bellows and an exhaust valve between the pipes 2, 5, the unit being detachably mounted in the ventilator. The means for attaching the unit to a wall 15 in the ventilator includes a flange (11), Fig. 1 (not shown), and a groove (12) in the unit and a plate 18 mounted on the wall 15 and housing a rotatable lever 19 having an aperture complementary to the flange (11). The flange (11) is located in the plate 18 while the pipe 1 fits in a bevelled tube 20 on the wall 15, and the lever 19 is rotated whereupon a cam on the lever 19 engages the groove (12) and forces the unit on to an 0-ring 17 to form a seal. An actuating rod (13) with a ferromagnetic boss (14) projects through an aperture 16 in the wall 15 and cooperates with magnetic means mounted on a piston-rod of an air cylinder and operates the exhaust valve. In operation air through the inlet pipe inflates the bellows while the boss (14) keeps the exhaust valve open. The magnetic means then closes this valve and the bellows contracts and drives air into the patient's lungs through the pipe 4. This cycle is repeated. Low resistance one-way valves in the pipes are accessible by removing blocks 7, 8 from a main block 9, by unscrewing nuts 10.
Patent GB-1049428-A (GB)
Title: Improvements in or relating to fuel cells
Inventor: WILLIAMS KEITH ROLLS
IPC: H01M8/12
Filed: 1963-08-15
Abstract: A fuel cell unit comprises a porous metal substrate coated on one side with a porous layer of nickel aluminide followed by a layer of anion conductive solid oxide electrolyte and then by an oxygen permeable layer of conductive material. The substrate which may be made of roll compacted sintered nickel, perforated nickel, sintered nickel on a perforated base, sintered stainless steel, or stainless steel gauze is the fuel electrode. The layer of nickel aluminide is applied to the substrate by flame spraying.  The solid electrolyte layer, which is a mixed oxide of zirconium hafnium, or scandium with calcium, lanthanum, yttrium or scandium, is applied by plasma spraying.  The conductive layer is a Group 1B metal or platinum palladium, rhodium, ruthenium or iridium, silver being preferred and is applied by flame spraying, chemical reduction, or vacuum evaporation.  If the conductive layer is applied by flame spraying an inorganic support, e.g. oxides of zirconium, zinc or aluminium is mixed with the active metal.  A layer of platinum paint may be applied to nickel aluminide.ALSO:A mixed oxide comprising oxides of zirconium, hafnium, or thorium with oxides of calcium, lanthanum, yttrium or scandium is applied by plasma or flame spraying to nickel aluminide which has previously been applied to a metal substrate.  A layer of platinum paint may be applied between the mixed oxide and nickel aluminide.
Patent GB-738140-A (GB)
Title: Improvements in couplings for cylindrical or tubular members
Inventor: WOOLSEY THEODORE A
IPC: F16L23/10
Filed: 1953-11-21
Abstract: 738,140. Band clips. MARMAN PRODUCTS CO., Inc. Nov. 21, 1953. No. 32335/53. Class 44. [Also in Group XXVIII] A contractible clamp for a pipe joint, particularly of the kind having channel-section clamp segments engaging the pipe flanges with a wedging action, has tensioning means engaging the opposed ends of the clamp segments 10, 11 including a number of dished spring washers 34 which are only partly compressed when the clamp is tightened, allowing for expansion of the coupled parts under working conditions. The spring has a load-deflection curve with a middle portion of substantially constant loading over a wide range of deflection. Each segment has terminal looped straps 15 secured thereto by saddle portions 18. A nut 16 and a sleeve 17 have pivot pins 25, 28 engaging the loops, and are carried by a bolt 24 passing through slots in the loops. Bracing yokes 26, 29 on nut and sleeve embrace the segments. The dished spring washers 34 are placed back to back (see Fig. 4) between the sleeve 17 and the bolt-head 30. The end washers engage wear-resisting, flat washers 35 or their own bases may be flattened. The bolt may be retained in the sleeve by a setscrew 39 engaging a reduced bolt section 38. A quick-release coupling comprises a T-headed bolt 241, Fig. 11, engaging a slot 48 in a U- shaped link 50 pivoted in a loop 15<SP>1</SP>. The bolt carries a T-headed sleeve 271 pivoted in a loop 15, the sleeve being formed from a flat stamping, its slit end being held by a cap 42. The spring washers are held between the sleeve 27<SP>1</SP> and a sleeve 43 by a nut 301. Angle brackers 26<SP>1</SP> on the clamp segments support the loop 15 and link 50. In a similar coupling without the quickrelease device, Fig. 8, (not shown) the T-head of the bolt engages a loop, and the angle brackets are secured to the loops. A tensioning- device for the form of coupling shown in Fig. 11 comprises a cap 59, Fig. 14, bearing against the sleeve 27<SP>1</SP> and receiving the reduced end 61<SP>1</SP> of a tubular nut 30<SP>11</SP> having a handle 63. The spring washers are held between the cap 59 and a shoulder 62 of the nut. This device is modified, Fig. 12 (not shown), by replacing the nut extension 61<SP>1</SP> by a plain sleeve, an ordinary hexagon nut engaging the sleeve and the end washer 34 to which the sleeve is secured.
Patent GB-1009654-A (GB)
Title: Improved method and apparatus for processing thermoplastics
IPC: B29C48/885
Filed: 1963-08-16
Abstract: To improve the properties, e.g. optical clarity, stress rupture resistance and stress cracking resistance, of thermoplastics the thermoplastic material is subjected to ultrasonic vibrations as it is cooled from a molten condition.  Polyolefins, vinyl polymers, isotactic polystyrene, poly-(alkylene oxides) and poly-(ethyleneterephthalate) are examples of thermoplastics to which the invention may be applied.
Patent GB-665976-A (GB)
Title: Controlled catalytic vapor phase process
IPC: B01J8/12
Filed: 1949-12-19
Abstract: In the catalystic gaseous phase oxida<PICT:0665976/IV (b)/1> tion of organic compounds, e.g. the oxidation of naphthalene, o-xylene or o-toluic acid to phthalic anhydride, of methyl pentadiene, benzene or butene- 2 to maleic acid and of propylene to propylene oxide and acrolein, with air or other oxidizing gas at 240-600 DEG  C., the finely - divided solid catalyst is allowed to fall freely as a shower through a reaction zone 1 to make contact for a short period, preferably less than one second, with the upwardly flowing reactant gases which enter at 7 and leave at 8, the solid collecting at 2 being purged of vapour by a stripping gas, e.g. steam, air or mixtures thereof, entering at 10, and then recycled to the top of the reactor through line 5 with the aid of a pick-up gas entering at 4. A separator 6 serves to disengage solid from gas at the top of the reactor.  To minimize absorption of reactant vapours by the incoming catalyst, steam or inert gas may be admitted at 9.  Heat exchange surfaces may be included in the reactor and in line 5.ALSO:<PICT:0665976/III/1> In reacting gases or vapours in the presence of a finely-divided catalytic solid, the solid is allowed to fall freely as a shower through a reacting zone 1 to make contact for a short period, preferably less than one second, with the upwardly flowing reactant gases which enter at 7 and leave at 8, the solid collecting at 2 being purged of vapour by a stripping gas, e.g. steam, air or mixtures thereof, entering at 10, and then recycled to the top of the reactor through line 5 with the aid of a pick-up gas entering at 4.  A separater 6 serves to disengage solid from gas at the top of the reactor.  To minimize absorption of reactant vapours by the incoming catalyst, steam or inert gas may be admitted at 9. Heat-exchange surfaces may be included in the reactor and in line 5. The method is applicable to the oxidation of organic compounds with air or other oxidizing gas at 240-600 DEG C, e.g. the oxidation of naphthalene, o-xylene or o-toluic acid to phthalic anhydride, of methyl pentadiene, benzene or butene 2 to maleic acid and of propylene to propylene oxide and acrolein employing as catalysts vanadium oxide, vanadium oxide-molybdenum oxide, vanadium oxide on silica gel or cuprous oxide on silica gel in the form of 20-60 mesh microspheres.
Patent GB-276946-A (GB)
Title: Improvements in or relating to projection screens
IPC: G03B21/602
Filed: 1926-12-23
Abstract: 276,946. Camel, F. R., (Assignee of Delbrouck, G.). Sept. 4, 1926, [Convention date]. Projection screens have a coating of grains of material each having a regular symmetrical form, the granulated surface being metallized. The grains may be of silica, flint, glass, or wood, and may be polyhedral, spherical, or hemispherical. Spherical grains may be embedded in a surface which is first irregularly indented and coated with an adhesive. The granular surface may be coated with adhesive, and partly coated with gold leaf in small pieces, the remaining surface being coated with aluminium or other foil in small pieces, and aluminium powder being finally dusted over the whole surface. According to the Specification as open to inspection under Sect. 91 (3) (a), the granular surface may be irregular, and may be formed by working the surface of a base while it is soft- The metal may consist of an alloy, and may be applied in leaf, powder or other form. The metal mav be covered with a non-oxidizable. wash. This subject-matter does not appear in the Specification as accepted.
Patent GB-537545-A (GB)
Title: Alloys
IPC: B23K35/32
Filed: 1939-12-20
Abstract: 537,545. Alloys. JACKSON, L. MELLERSH-. (Baker & Co., Inc.). Dec. 20, 1939, No. 32626. [A Specification was laid open to inspection under Sect. 91 of the Acts. March 14, 1941.] [Class 82 (i)] Alloys particularly for dental purposes and jewellery consist of 20-60 per cent. of platinum, 10-40 per cent. of palladium, 10-50 per cent. of silver, and 1-25 per cent. of gold. The Specification as open to inspection under Sec. 91 refers also to tin, zinc, and cadmium as constituents of the alloys. This subject-matter does not appear in the Specification as accepted.
Patent GB-1346347-A (GB)
Title: Process for disproportionating olefins
IPC: B01J23/888
Filed: 1971-07-12
Abstract: 1346347 Disproportionation catalyst SNAM PROGETTI SpA 12 July 1971 [29 July 1970] 32642/71 Heading B1E [Also in Division C5] A disproportionation catalyst comprises oxides of (a) tungsten and (b) copper or a Gp VIII metal in an atomic ratio (b) to tungsten of 1:3 to 5:1. Specific Gp VIII metals mentioned are Fe, Co and Ni. The tungsten may be present, at least partially, in the form of a tungstate of the copper or Gp VIII metal. The composition may be supported, e.g. on silica, alumina, silica-alumina, or kieselguhr. In the Examples-cobalt, nickel, iron or copper tungstate on silica is formed by precipitating the tungstate from solution, mixing with a silica sol, drying and calcining.
Patent GB-1399750-A (GB)
Title: Pump
IPC: A61M60/837
Filed: 1972-07-12
Abstract: 1399750 Reciprocating pumps G & E BRADLEY Ltd 5 July 1973 [12 July 1972] 32667/72 Heading F1A A pump, e.g. for blood, comprises a flexible tubular body 31 e.g. of polyethylene, which is twisted to effect a pumping action, inlet and outlet valves 26, 30 being provided. As shown, one end of body 31 is held stationary by disc 20 in support 18, the other end of the body being closed by a disc 34 which is oscillated via springs 37 by a turntable 39. In Fig.3 (not shown), the tubular body has frusto-conical ends integral with inlet and outlet tubes with cam-actuated pinch-members (53, 54 and 57, 58) acting as inlet and outlet valves. Alternatively, both ends of the tubular body may be stationary, and its central section oscillated. The pump may be actuated by an electric motor or manually.
Patent GB-999565-A (GB)
Title: Earth working blade attachment tool and method of positioning and mounting same on the blade
IPC: E02F3/815
Filed: 1963-08-19
Abstract: 999,565. Earth-working equipment; scarifiers. C. A. ROBINSON, and L. YOUNGER. Aug. 19, 1963 [Sept. 26, 1962], No. 32729/63. Headings E1F and E1G. A rigid frame structure comprising a plurality of upright scarifier teeth 12 has a convex rear face to mate with the concave blade 8 of an earth-working machine to which blade the structure is hooked, 9, at the lower edge and detachably fastened, 27, at the upper edge. The teeth 12 are joined by angle pieces 14 and plates 15, 16 to form a rigid structure having upwardly open hooks 9 on the teeth and slots 24 to receive bolts 26 for separate hook members 27, 37 engaging the upper edge of the blade 8. The structure is mounted on the blade by running the lower edge of the blade under the convex rear surfaces of the teeth, whereupon the structure rides up the blade until the hooks 9 engage the lower edge, the upper hooks 27, 37 being then bolted in position.
Patent GB-779487-A (GB)
Title: Manufacture of polyazo-dyestuffs
IPC: D06P3/32
Filed: 1952-12-24
Abstract: The invention comprises dyestuffs of formula <FORM:0779487/IV(b)/1> where R and R1 are aromatic residues at least one containing an SO3H group, X is - N = N - or <FORM:0779487/IV(b)/2> and Y is H or SO3H. They are made by coupling a dyestuff from a diazotized 1 - amino - or 1 - (31 or 41 - aminobenzoyl) - amino - 8 - naphthol - mono - or di - sulphonic acid and 3, 31 - dihydroxy-diphenylamine with 2 mol proportions of an aromatic diazo compound containing at least one SO3H group or with one mol proportion of each of 2 aromatic diazo compounds which together contain at least one SO3H group; by coupling a diazotized aromatic amine in an alkaline medium with a 1 - amino or 1 - (31 - or 41 - aminobenzoyl) - amino - 8 - naphthol mono- or di - sulphonic acid, diazotizing the product and coupling with the diphenylamine and coupling the product with an appropriate diazotized aromatic amine, at least one of the aromatic amines containing at least one SO3H group; by coupling a diazotized aromatic amine with the diphenylamine and the product with diazotized 1 - amino - or 1 - (31 - or 41 - amino - benzoyl) - amino-8 - naphthol - mono - or di - sulphonic acid and the product with a diazotized aromatic amine, at least one of the aromatic amines containing at least one sulphonic acid group and by coupling a diazotized aromatic amine in an alkaline medium with a 1 - amino - or 1 - (31- or 41-aminobenzoyl)-amino - 8 - naphthol mono- or di - sulphonic acid, and diazotizing the product and coupling in an alkaline medium with the dyestuff obtainable by coupling a diazotized aromatic amine with the diphenylamine, at least one of the aromatic amines containing at least one sulphonic acid group.  The dyestuffs dye leather in brown shades.  Examples and a table are provided illustrating the preparation of the dyestuffs and their use in dyeing leather, the 8 - naphthols used being 1 - amino - 8 - naphthol naphthol - 4 - and - 5 - mono - and - 3, 6 - and - 4, 6 - di- and 1 - (31 and 41 - aminobenzoyl) - amino - 8 - naphthol - 3, 6 - di - sulphonic acids the aromatic amines being aniline - 4 - mono - and - 2, 5 - di - sulphonic acids, 2 - methyl - 3 1 chloro - aniline - 5 - sulphonic acid, 4 - nitro - 1 - aniline - 2 - sulphonic acid, 1, 4 - diaminobenzene - 2 - sulphonic acid, 4 - nitro -, 2 - chloro - 4 - nitro- and 2 - hydroxy - 3, 5 - dinitro - aniline, 5 - amino - acenaphthalene - 3 (8) - sulphonic acid, 4 - amino - diphenylamine- 2 - 4 - amino - 41 - nitro - diphenylamine - 21 - and 4 - amino - 21, 41 dinitro - diphenylamine - 61 - sulphonic acids, 1 - naphthylamine - 6 - (7)-sulphonic acid and 4 - amino - 1, 11 - azobenzene - 41 - sulphonic acid.  Specifications 251,140 [Class 2(iii)] and 536,159 [Group IV] are referred to.
Patent GB-275150-A (GB)
Title: Means for controlling induction motors fed from rotary synchronous phase-converters
IPC: H02K47/22
Filed: 1926-12-29
Abstract: 275,150. Kando, K. July 29, 1926, [Convention date]. Systems depending on two or more machines; regulation, automatic.-In a system employing a rotary synchronous phase converter to feed an induction motor provided with an automaticallycontrolled starting device, means for controlling the automatic starter are coupled with a device for controlling the excitation of the phase converter. In the construction shown, single-phase current is supplied from a trolly wire L to a phase converter U which supplies three-phase current to an induction motor M. The secondary winding of the motor is connected to a liquid starting resistance. The _liquid is pumped into a. chamber e provided with a weir d connected to a spring-loaded piston g in a cylinder y which is adapted to communicate either with a vessel i containing compressed air or with the atmosphere., according to the position of a valve h. The valve is operatively connected on one side to a watt-meter j<1>, j<2> and on the other side to a spring t which, in turn, is connected to an arm S of a variable resistance R. The arm S is coupled to a starting handle v by means of a lever w pivotally connected to the stem of a piston x, which works in a chamber communicating at the top with the chamber y and at the bottom with the vessel i. To start the motor M, after the converter U has been started and the switch O closed, the handle v is operated whereby the arm S is actuated to cut out the variable resistance R and increase, the excitation of the converter U. The valve h is lowered allowing the entry of compressed air to the chamber y, whereby the weir d is raised. The starting resistance is thereby decreased and the motor M is started up, causing the watt-meter j<1>, j<2> to act upon the valve h in opposition to the spring t. The starting period terminates when the piston g has attained its highest position. Thereafter any change in the load on the motor M actuates the valve h through the medium of the watt-meter, thereby causing a variation in the pressure on the piston x. Such variation influences the lever wand the arm S, and so varies the excitation of the converter.
Patent GB-1120033-A (GB)
Title: The preparation of í¸-pyrrolin-2-carboxylic acid
Inventor: RIVA GIOVANNA
IPC: C07D207/22
Filed: 1964-08-12
Abstract: D 3-Pyrroline-2-carboxylic acid is prepared by reduction of 2-pyrrole carboxylic acid by reacting the latter acid with hydriodic acid and hypophosphorous acid, in the presence of water or a mixture of water and an organic solvent which is inert under the reaction conditions and miscible with water, or by reacting 2-pyrrole carboxylic acid with nascent hydrogen form from a hydrohalic acid and a suitable metal such as zinc or tin, in the presence of an organic solvent.
Patent GB-1474255-A (GB)
Title: Apparatus for developing migration imaging members
IPC: G03G17/10
Filed: 1974-07-25
Abstract: 1474255 Developing apparatus XEROX CORP 25 July 1974 [26 July 1973] 32936/74 Heading G2H In an apparatus in which a migration imaging member 4 is guided along a curved longitudinal path adjacent and parallel to the development surface 18 of a liquid developer support member 13, developer liquid is supplied to said surface 18 through at least one aperture 14 located sufficiently close to the entrance edge 12 of the surface 18 to prevent solvent-vapour development of an imaging member 4, and said surface 18 contains a biasing electrode 19 to aid removal of residual material from a developed imaging member 4, said electrode 19 being located along said path after said aperture 14 and before the exit edge 11 of the surface 18. The apparatus is capable of developing migration imaging members at speeds of at least 4 inches per second and is thus suitable for use in camera/processor/projector apparatus at continuous motion picture speeds of about 7 inches per second, e.g. 16mm film moving at 24 frames per second, producing images free of background material.
Patent GB-846263-A (GB)
Title: Improvements in hand-operated electric switches
Inventor: SCOWEN KENNETH JOHN
IPC: H01H23/02
Filed: 1955-11-17
Abstract: 846,263. Retractive switches; tumbler switches. TRICO-FOLBERTH Ltd. Nov. 19, 1956 [Nov. 17, 1955; Sept. 27, 1956], Nos. 32959/55 and 29567/56. Class 38 (5). A hand-operated switch has a part of the handle below its pivotal axis which engages a bridge member, electrically connected to a terminal, which can rise and fall and rock so as to move into and out of engagement with a fixed contact. As applied to a two-way-and-off switch the movable contact bridge 26 is held by the spring 58 of the handle assembly 36 against a flat spring 34 supported at its ends on a member 18 fixed to the movable body 2 and having extensions 22, 24 with holes 40 for the pivot pins 38 of the handle assembly 36. Fixed contacts 10, 12, terminals 14, 16 and a terminal (not shown) for member 18 are carried on the body 2 which is movable in the housing 4 and urged against shoulders 88 of the housing by springs 76, 80. When the handle assembly 36 is tilted, a roller 46, pivoted on a pin 86 thereon, rides out of a depression 32 in the bridge 26 and tilts the bridge so that it engages one of the contacts 10, 12. The switch may be stable in this position or may be returned to the " off " position by the spring 34 depending upon the shape of the bridge 26. In either " on " position the axle pin 86 engages an extension 84 (Fig. 2) on a plate 82 to energize an indicator lamp 64, the handle assembly being translucent for this purpose. The body 2 carries a contact 92 connected to one contact of the lamp through the plate 82 and the spring 80. The housing 4 carries a contact 94 connected to terminal 96. The centre contact of the lamp 64 engages a removable plate 70 connected to a terminal 78 through a stud 74 and the spring 76. When the switch is in the "off" position the handle assembly 36 may be pressed to pivot the body 2 about a projection 90 so as to close the contacts 92, 94 (Fig. 1) and complete a testing circuit for the lamp from an independent source connected to the terminal 96. If the spring 34 breaks, the spring 58 urges the handle assembly 36 downward so that the bridge 26 nests on the sides 20 of member 18 and the switch cannot be closed.