baber/WOPTO huggingface dataset:
Patent GB-722663-A (GB)
Title: Improvements in or relating to very high frequency valve and wave guide installation
Inventor: WILLWACHER DIPL-ING ERWIN
IPC: H03F3/60
Filed: 1953-01-19
Abstract: 722,663. Valve generating circuits. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. Jan. 19, 1963 [Jan. 19, 1952], No. 1565/53. Addition to 714,827, [Group XL (b)], Class 40 (6). [Also in Group XL (b)] A valve generating circuit comprises a valve V coupled at input to a capacitatively loaded wave-guide 4 and at output to a similar guide 8 as described in the parent Specification, and an unloaded guide 16 is coupled with one of the first two guides to remove at least one harmonic of the generated frequency. The guide 16 may contain lossy material, such as graphite 6, for absorbing the unwanted harmonic. The input and output guides have tuning screws 12 and a tuning slider 11, and a take-off coaxial line 17 is provided.
Patent GB-815731-A (GB)
Title: Improvements in or relating to felted materials and the manufacture thereof
Inventor: BARR THOMAS
IPC: D21F7/08
Filed: 1955-01-19
Abstract: 815,731. Laminates. BRITISH HAT & ALLIED FELTMAKERS RESEARCH ASSOCIATION. Dec. 5, 1955 [Jan. 19, 1955], No. 1583/55. Class 140. Reinforced felt is made by forming two or more batts of felt fibres, arranging said batts without the use of adhesive in face-to-face contact with one or more plies of woven, non- feltable material of such structure as to permit the felt fibres to penetrate therethrough and hardening by the combined action of steam, pressure and a lateral jigging motion. The woven material may have a raised surface. Cotton, rayon, polyamide, polyethylene or polyester fabrics may be used, or copper mesh fabric, which is particularly suitable for use in travelling felts for paper-making machines or for filtering media. The material may be finished by scouring, milling or raising.
Patent GB-180978-A (GB)
Title: Improvements in or relating to the vulcanization of rubber or similar materials
IPC: C08L7/00
Filed: 1922-01-18
Abstract: The reaction product of an aldehyde comprising an open chain having a plurality of carbon atoms (2-7), and an amine, preferably primary or secondary, having an electrolytic dissociation constant greater than 1x10-12, is employed as an accelerator in the vulcanization of rubber.  The following products are specified:-the products of condensation of acetaldehyde with methylamine, mono- and di-ethylamines, urea, hydroxylamine, phenylhydrazine, benzylamine, aniline, monomethylaniline, m- and p-nitranilines, o- and p-toluidines, p-phenylenediamine, m-toluylenediamine, acetphenylenediamine, di-phenylamine, benzidine, triaminotoluene and with b -naphthylamine; of propionaldehyde, normal and iso-butylaldehydes, valeraldehyde, polyheptaldehyde, octylaldehyde, nonylaldehyde, duodecylaldehyde, glucose, stearic aldehyde, citronellal, and of cinnamaldehyde with aniline; of butylaldehyde with mono- and diethylamines and with p-toluidine; of heptaldehyde with methylamine, mono- and di-ethylamines, hydroxylamine, benzylamine, p-toluidine, and with b -naphthylamine; and of propionaldehyde, valeraldehyde and of cinnamaldehyde with ethylamine. Examples show the proportions and conditions of the reactions between heptaldehyde and aniline in presence of sulphur, and between acetaldehyde and aniline-in presence of water only.  Reference has been directed by the Comptroller to Specification 7370/14, [Class 70, India-rubber &c.].
Patent GB-1480192-A (GB)
Title: 1-methyl-2-nitro-imidazole-5-methanol derivatives
IPC: C07D233/88
Filed: 1975-01-15
Abstract: 1480192 1-Methyl-2-nitro-imidazole-5-methanol derivatives GRUPPO LEPETIT SpA 5 Jan 1976 [15 Jan 1975] 1684/75 Heading C2C α,α - 1 - Trimethyl - 2 - nitro - imidazole - 5- methanol (I) and its methyl ether (II) are prepared by reacting α-methoxy-α-methylacetaldehyde with methylamine and an alkali metal cyanide to form 3-methoxy-3-methyl-2-methylamino-butyronitrile which is subject to catalytic hydrogenation followed by cyanamide and heating to give 2 - amino - 5 - (1 - methoxy - 1- methylethyl) - 1 - methyl - imidazole which is diazotized and treated with an alkali metal nitrite and copper powder to yield a mixture of I and II. Compound II is converted to Compound I by acid hydrolysis. Compounds I and II have anti-bacterial activity especially against Trichomonas vaginalis and form with a carrier or diluent a pharmaceutical composition which may be administered orally, parenterally, topically or vaginally.
Patent GB-206755-A (GB)
Title: Improvements in railway sleepers
IPC: E01B3/32
Filed: 1923-01-19
Abstract: 206,755. Sani, B. Jan. 19, 1923. Sleepers, composite; sound and vibration, preventing.-Reinforced-concrete sleepers are trapezoidal in section with a narrow side comprising the base at the centre and ends and a wide side comprising the base at the rail seat, the sleeper being reinforced by longitudinal iron rods enveloped by an iron network; pairs of wire coils receive the coach screws which secure the rails as described in Specification 3530/07. The chairplate F rests on a pad G of compressed asphalted cardboard or asbestos millboard. Transverse holes E are provided for handling the sleeper.
Patent GB-1301084-A (GB)
Title: Improvements in or relating to the illumination of road signs or road markings
Inventor: WHITEHEAD BERNARD
IPC: F21S8/00
Filed: 1969-01-11
Abstract: 1301084 Warning lamps B WHITEHEAD 6 Jan 1970 [11 Jan 1969] 1758/69 Heading F4R A warning lamp suitable for insertion into the top of a road hazard cone comprises a transparent or translucent tubular holder 10 containing a disc 12 which supports a bulbholder 16 and terminals 18, the disc being made of harder material than the tubular holder so that it produces an external protrusion or dilation 14 around the holder. The disc and the holder are both made of plastics material and one end of the holder is formed with a flap 24 which can be folded over and secured to the other side of the tube by a rivet 26 thereby leaving two gaps 27 for twin core cables 28. The cables are sheathed by flexible fluorescent plastics tubes 30 secured to the holder by the rivet 26 and extend to further similar holders so that a string of warning lamps connected in parallel is obtained. Each lamp has a flexible fluorescent plastics jacket 34 which can be slipped off the lamp by sliding it along the cables, the lamp then being pushed into the round hole (38) at the top of a hazard cone so that the dilation 14 expands the hole resiliently and prevents unintentional withdrawal of the lamp. In alternative arrangements the lamps may be slung around road hazards or laid on the road surface without being inserted into cones or may be worn on the person.
Patent GB-234157-A (GB)
Title: Improvements in or relating to refrigerating apparatus
IPC: F25B17/00
Filed: 1924-01-22
Abstract: 234,157. Delaygue, C. Jan. 22, 1924. Refrigerating, absorption machines for.-In a reversing apparatus comprising a generatorabsorber A and a condenser-evaporator G connected by a pipe R-C, with a gas outlet pipe t leading vertically from the generator-absorber into the return vapour pipe R-C, as described for example in Specification 138,938, baffles b for separating aqueous particles from the refrigerant vapour are provided in the outlet pipe t, and preferably above the usual non-return valve S. The baffles b are supported on a depending rod a, and may consist of radial arms which are in staggered relation. The pipe t projects into the pipe R-C to provide a lip d whereby returning liquid in the pipe R-C is directed away from the outlet pipe t. In order to return to the generator any liquor carried over into the vessel G, the apparatus is turned over, and in this position is supported by lugs o on the generatorabsorber. When the apparatus is returned to its normal position any such liquor flows down the part R of the return vapour pipe. Specification 5598/90 also is referred to.
Patent GB-1130207-A (GB)
Title: Improvements in or relating to travelling wave tubes
IPC: H01J23/36
Filed: 1966-01-14
Abstract: 1,130,207. Travelling wave tubes. SIEMENS A.G. 14 Jan., 1966 [15 Jan., 1965], No. 1778/66. Addition to 950,637. Heading H1D. In a travelling-wave tube according to claim 1 of the parent Specification, the tuning stub is constituted by a metal body spaced from the waveguide walls and mounted on a support of dielectric material which extends in the axial direction of the waveguide. The metal body is preferably in the form of a cup, and is mounted on a quartz or P.T.F.E. rod which passes through the wall of a curved section of the waveguide to a micrometer driven adjustment plunger which permits adjustment of the effective length of the resonant slow wave structure to provide maximum output. Optimum dimensional ratios are given. Reference is made to modifications in which the slow wave structure is constituted of two series-coupled portions; the tuning plunger is at right-angles to the tube axis; and further tuning elements, additional and subsequent to the tuning plunger, are employed.
Patent GB-174360-A (GB)
Title: Improved process for the manufacture of liquid fuels for use in internal combustion engines and other purposes
IPC: C10L1/02
Filed: 1922-01-20
Abstract: Liquid fuel, especially suitable for use in internal combustion engines, consists of a mixture of tar-oils distilling up to 130 DEG C., raw petroleum oil fractions distilling up to 260 DEG  C., and an oxygen carrier such as wood spirit.  The tar-oils may be obtained from pit-coal, brown coal, lignite, peat and the like and the petroleum distillates from earth or rock oils.  The vapours of the tar oil and raw petroleum oil distillates may be mixed during distillation.  After adding the oxygen carrier, the fuel may be allowed to settle for several hours, and then filtered.  In an example, 40-50 per cent of tar distillate passing over between 75-130 DEG  C. is mixed with 40-50 per cent of raw petroleum oil distillate passing over between 50-260 DEG  C. and 3-5 per cent dehydrated wood spirit.
Patent GB-328207-A (GB)
Title: Improvements in pumps for controlling the delivery of fuel to internal combustion engnes
IPC: F02M59/30
Filed: 1929-01-18
Abstract: 328,207. Darby, M. O., and Sidney, A. A. Jan. 18, 1929. Cam-actuated pumps; stroke, varying; timing- devices.-In a fuel-injection pump for internalcombustion engines, the plungers A are actuated by cams J through levers H, G and slides F. The stroke of the plungers is adjusted by moving the rocker G laterally by means of a moving arm G<2>, and the time of delivery is adjusted by moving the rocker H laterally by means of the arm H<2>. The pump may be thrown out of action by moving the arms G against the arm H<5> to raise the lever H out of contact with the cam.
Patent GB-397374-A (GB)
Title: Improvements in or relating to air-tight tins and like containers for tobacco, foodstuffs, and the like
IPC: B65D53/02
Filed: 1933-01-19
Abstract: An adhesive for use in securing rings of "Gold Seal Cap Compound," which is a composition of rubber latex, gum karaya, sodium carbonate and bentonite sold under that registered Trade Mark, and other gaskets used in vacuum-sealed canisters, comprises a mixture of soft manilla 34 parts, Kaolin 33 parts, methylated spirits 28 parts and castor oil 5 parts, all by weight.  It is stated to be sold as "Necol Cement KZ2085."  The adhesive may be thinned by the addition of ammonia solution and glycerine. Specification 389,041, [Group XVII], is referred to.
Patent GB-1106466-A (GB)
Title: Rinsing and cleaning agents of low foaming power
IPC: C11D1/44
Filed: 1967-01-13
Abstract: Rinsing and cleaning agents of low foaming power contain:-(a) polymers of (3-hydroxy-methyl-3-ethyl) -oxacyclobutane containing polyalkyleneoxy residues of general formula <FORM:1106466/C4-C5/1> or <FORM:1106466/C4-C5/2> in which X is an integer of 5-12, m is 2-16, n is 1-8 and the ratio of m:n is 1.5:1 to 10:1, and (b) surface-active compounds comprising propyleneoxy residues or polypropyleneoxy residues with 2-90 units, the proportion of propyleneoxy units to total alkyleneoxy units being more than 50 mol per cent.  Compounds (b) may also comprise ethyleneoxy or polyethyleneoxy residues. Compounds (b) may be alkyleneoxy adducts of aromatic hydroxy or amino compounds with 2-5 C atoms containing at least 2 reactive hydrogen atoms or of aliphatic or aliphatic-aromatic compounds with 8-22 C atoms containing hydroxy or amino groups.
Patent GB-1137854-A (GB)
Title: Method of providing a rotor blade spar with brazed-on tapered attachment
Inventor: BROWNLEE WINSTON EARL
IPC: B23K1/00
Filed: 1966-01-14
Abstract: 1,137,854. Rotorcraft blades. PARSONS CORP. 14 Jan., 1966, No. 1964/66. Heading B7W. [Also in Division B3] A metal rotor blade spar 10 has a brazed-on tapered attachment 12, the inner surface of the attachment being contoured to complement the outer surface of the spar and the inner surface of part of the attachment being provided with rounded spaced projections (28), Fig. 2 (not shown), which space the part of the attachment from the spar and the part of the attachment being tapered above the projections. The projections are provided by indenting the outer surface of the part of the attachment and the tapering removes the indented part. The spar is a hollow steel tube and forms part of a helicopter rotor blade and the attachment is a reinforcing member for receiving a bolted root and retention fitting for connection to the rotor hub. A blade after body b is secured to the spar. Upper and lower reinforcing members are provided.
Patent GB-1132052-A (GB)
Title: Method for discharging spent alloy from aluminium sub-halide distillation system
IPC: C22B21/00
Filed: 1966-01-14
Abstract: 1,132,052. Distilling aluminium; iron alloy. ALUMINIUM LABORATORIES Ltd. Jan.14, 1966 [Feb.3,1965], No.1968/66. Headings C7A and C7D. Spent solid alloy is removed from the converter of an aluminium subhalide distillation system by feeding spent alloy from the converter into an enclosed passage, the bottom end of which is closed by a water seal and supplying sufficient moisture free purge gas to the upper end of said enclosed passage to prevent the downward movement of aluminium trihalide from the converter into the lower part of the enclosed passage, said purge gas being generated within said passage by contacting descending spent alloy with water, a sufficient column of hot spent alloy usually maintained in said passage above the point at which water is admitted to ensure that purge gas rising into the upper part of the passage is moisture free. The spent alloy may be sprayed with water in the lower part of the passage to generate moisture laden gas which is dried by contact with the hot spent alloy. In Fig. 1 hot spent alloy descending through pipe 18, housing 22 and pipe 24 passes successively through a water vapour reacting zone in pipe 20, a cooling section in pipe 24 between spray heads 32 and the water level 30 at the bottom of pipe 24. In each of these zones CH 4  and H 2  are produced by contact of the alloy with water or water vapour. The spent alloy may have the following composition:- Fe 50 to 70%, Al 3 to 15%, Si 5 to 15%, Ti 3 to 8%, C 7 to 12%.
Patent GB-138111-A (GB)
Title: An improved process for isolating or purifying alkali chromates
Filed: 1918-01-25
Abstract: Alkali chromate fusion products in powdered form or in solution are treated with carbonic acid or with alkali bicarbonate, and then with carbonic acid, so as to precipitate silica and alumina and recover the surplus alkali as bicarbonate. The purified chromate is separated from the precipitate or leached from the dry mass respectively.
Patent GB-428639-A (GB)
Title: Improvements in or relating to variable electric condensers
IPC: H01G5/06
Filed: 1934-01-19
Abstract: 428,639. Condensers. GEORGE, J. I., 21, Mount Road, Hayes, Middlesex. Jan. 19, 1934, No. 2008. [Class 38 (ii)] Three or more separate flat-topped, preferably frusto-conical projections 9 are formed in each plate 12 of a variable condenser around the aperture for a supporting member 1. Preferably a set is formed on each side as at 9, 10, and the plates on assembly are arranged so that the projections on adjacent plates abut. In the case of a rotor the supporting member may be tubular as shown with integral or attached flanges at each end to clamp the plates in position. Preferably the washers have apertures corresponding to the projections in the plates against which they abut.
Patent GB-284327-A (GB)
Title: Fuller's earth-treating process
IPC: C10G25/12
Filed: 1928-01-23
Abstract: 284,327. Rosenbaum, R. R. Jan. 29, 1927, [Convention date]. Purifying oils, fats and waxes; fuller's earth. -Fuller's earth is regenerated by treatment with liquid sulphur dioxide, preferably in the filter used) for the purification of e.g. hydrocarbons, oils, or waxes. The earth mav first be treated with steam to remove most of the adsorbed oil. In the device shown oil from a pipe 6 is purified by passage through fuller's earth E to an outlet pipe 8. The used earth is reconditioned by passing in liquid sulphur dioxide from a cooling coil 39 by a pipe 40. The extract is led to a tank 13 in which hydrocarbons insoluble in the dioxide separate as an upper layer, the lower layer of dissolved hydrocarbons and colouring matter being then run through a pipe 21 to a tank 16. By opening the valves 32 - - 35 the pressure in the tanks 13, 16 and in the filter 1 is reduced and the sulphur dioxide contained therein vaporized and directed to a tank 28, from which it is drawn, compressed and forced to the cooling coil 39 by a compressor 37. The Specification as open to inspection under Sect. 91 (3) (a) describes also the activation of unused fuller's earth by treatment with gaseous or liquid sulphur dioxide, and the treatment of other adsorbents. This subject-matter does not appear in the Specification as accepted.
Patent GB-524098-A (GB)
Title: Improvements relating to the fuel admission of internal combustion engines
IPC: F02M61/10
Filed: 1939-01-21
Abstract: 524,098. Fuel injection pumps. KAMMER, G. S. Jan. 21, 1939, No. 2182. [Class 102 (i)] [Also in Group XXVII] In a fuel-injection system for an internalcombustion engine in which an accumulator is associated with a pump and the spring-pressed valve of a fuel injector is opened by the'pressure in a branch of the fuel-supply line, the valve is held closed solely by its spring acting against the pressure of the fuel. A cam-actuated valve controls the admission and discharge of the operating fluid to and from a piston chamber of the injection valve. As shown in Fig. 1, a pump plunger 5 delivers fuel to the space 11 above an accumulator piston 12, which is depressed against the action of a spring 13 until an inclined edge on a collar 18 engages a bell-crank lever 22, which through a spring- pressed piston 17 opens a valve 14 to connect a passage 8 to the suction line 7 of the pump. To vary the fuel pressure at which the valve 14 is opened the piston 12 is rotated by a worm 21 on a governor-controlled shaft 20. The fuel to be injected traverses passages 26, 26a to the space 46 beneath an injector valve 47 Fig. 4 which is held closed by a spring 52 until fuel is admitted through a passage 35 to a space 56 below a piston 51 connected to the valve. The time of admission to the space 56 is controlled by a valve 36 Fig. 2 disposed between the passages 26, 35. When the valve 31 is closed, the pressure in the space 56 is reduced by connecting it through a passage 44 and a passage 43 to the suction line 7, but when the valve 31 is raised by a cam 27 on the shaft 1 it closes the passage 44. The cam may be adjusted along the shaft 1 and may produce two fuel injections per cycle. One valve 31 is provided for each injection valve. The fuel pump and/or the accumulator may be duplicated and non-return valves may be provided to prevent loss of fuel due to the failure of a pump or an accumulator.
Patent GB-960933-A (GB)
Title: Glazed uncreped extensible paper
Inventor: WELSH HEWITT SELDEN
IPC: D21G1/00
Filed: 1962-01-22
Abstract: 960,933. Paper-making. CLUPAK Inc. Jan. 22, 1962, No. 2224/62. Headings D2A and D2B. Uncreped extensible paper is glazed by conditioning it to a moisture content of 6 to 12% by weight and then glazing at least one face by moving it in contact with and at the same rate of advance as a heated, smooth, metallic surface through a pressure nip. As shown, a web of paper P passes through a rubber-belt compaction device 11 while at a moisture content of 35%, and then through drying apparatus 12 to reduce its moisture content to 6 to 12%. It is then glazed in the apparatus 10 which comprises a roll 13 with a resilient cover 14, e.g. of natural or synthetic rubber, mounted on bearings 16, and a smooth, heated metallic roll 17 pressed on to the roll 13 by one or more pressure cylinders 18 and driven by a prime mover (not shown). The pressure Pr with which the rolls are pressed together is adjusted to make it great enough to impart an acceptable glaze, but not so great that slippage occurs between the rollers. A second glazing calender may be placed (Fig. 3, not shown) to glaze the other side of the paper. The apparatus may be operated fast enough to be used "on machine" with a high-speed paper machine. Specification 727,261 is referred to.
Patent GB-1171971-A (GB)
Title: Improvements in or relating to Non-Woven Structures
Inventor: SANDERS ARTHUR JOSEPH
IPC: D05C17/02
Filed: 1967-01-16
Abstract: 1,171,971. Fibrillated film laminates. IMPERIAL CHEMICAL INDUSTRIES Ltd. 11 Jan., 1968 [16 Jan., 1967], No. 2262/67. Heading B5N. The invention comprises a non-woven, fibrillar, needle-punched structure consisting of a plurality of layers of fibrillatable oriented polymeric film bonded together. Specified polymers are polypropylene, polyethylene, poly-(4- methyl-pentene-1), polyethylene terephthalate, poly(hexamethylene adipate) and polyvinyl chloride, polyvinylidene chloride and copolymers thereof. Adjacent layers preferably have their directions of orientation at right-angles. Sufficiently heavy needle-punching will fibrillate the fibres and cause bonding by interengagement of fibrils between layers. If such interengagement is not produced an adhesive may be used to cause bonding, adhesive properties preferably being developed after fibrillation. Specified adhesives are latices and thermoplastic films, powders and fibres; the structure may be built up from extrusion-laminated films comprising an adhesive component and a fibrillatable component (e.g. polyethylene/polypropylene). The film assembly may be associated with webs, e.g. woven, staple fibre or continuous filament webs of flax, cotton, silk, regenerated cellulose, glass fibre, mineral fibre or synthetic fibres of polyester, polyamide or polyolefin, the fibres of which assist the bonding of the structure. A film assembly may be sandwiched between two webs.
Patent GB-249959-A (GB)
Title: Improvements in can openers
IPC: B67B7/46
Filed: 1925-01-26
Abstract: 249,959. Dehn, F. B., (Chapin Products Corporation). Jan. 26, 1925. Opening by cutting.-A can opener of the type in which the bead B of the can C is gripped to hold or feed the can during the cutting operation comprises a cutting lever 1 and gripping lever 2 pivoted together at 3. The gripping lever 2 is jointed at 15 each part being provided with depending flanges 17, 19 which grip the bead of the can when the lever is in the position shown, but which are out of engagement with the bead when the lever is in the position shown by the dotted lines. The outer gripping flange 17 is deeper than the flange 19. A cutting blade 11 is mounted on the lever 1 and the cutting edge is inclined forwardly so that the lid is reamed outwardly during the cutting operation. A guide pin 7 depends from the lever 1 in proximity to the outer wall of the can. The levers 1, 2 are formed from sheet metal stampings the handle portions being tubular and the remaining portions having parallel side walls. Notches 21 are provided for hanging the opener when not in use. In operation the cutting takes place as the levers 1, 2 are moved towards each other and the lid is completely severed by a series of scissors-like motions.