baber/WOPTO huggingface dataset:
Patent GB-664017-A (GB)
Title: Coping for brick wall
Inventor: PAISLEY JOHN
IPC: E04D3/40
Filed: 1949-10-03
Abstract: 664,017. Walls. EASTWOODS, Ltd. Sept. 29, 1950 [Oct. 3, 1949], No. 25413/49. Class 20(iv) A coping for a brick wall W, is made of a series of sections each extending transversely over and beyond the top of the wall to provide drip edges. Each section comprises two parts; one part 13, 21 is a half standard brick severed from one stretcher face to the opposite stretcher face, e.g. at 45 degrees as in Fig. 1 or at 90 degrees as in Fig. 2. The other part is nearly a whole brick 16, 22, the form shown in Fig. 1 having one corner removed, e.g. at 45 degrees, and that shown in Fig. 2 having two adjacent corners removed. The two parts are bonded together and to the adjacent sections (which break joint) so as to form two roof-like top faces sloping down and out from the ridge to the drip edges and two exposed under faces sloping down and in from the drip edges to the upper edges of the wall. The ridge angle 25 in the form shown in Fig. 2 may be about 120 degrees and in this form the coping is completed by low triangular bricks 27 which may be keyed to the other bricks at 28.
Patent GB-184399-A (GB)
Title: Improvements in apparatus for straining liquids
IPC: B01D35/28
Filed: 1921-09-26
Abstract: 184,399. McNair, D. G. Sept. 26, 1921. Strainers having sheet straining-materials; strainers fitted in pipes.-A conical strainer 10 is fixed between the inlet end of a casing 1 and an aperture 4 in the wall of a chamber 3 which extends across the casing but leaves passage-ways at either side. Liquid entering the casing passes outwardly through the strainer. The solid matter retained by the strainer is flushed into the chamber 3 when a valve 5 closing the aperture 4 is opened by means of a hand-wheel 8. Liquid entering the chamber 3 with the solid matter drains away through a secondary strainer 11 and a cock 14. A removable closure is provided for the extension of the chamber 3 so that the solid matter on the strainer 11 can be removed. The casing 1 has flanges 2 for connection in a pipe line.
Patent GB-597889-A (GB)
Title: The manufacture of 2-amino-5-methyl pyrazine
IPC: C07D241/20
Filed: 1944-12-19
Abstract: 2-Amino-5-methylpyrazine is prepared by reacting an alkali metal hypochlorite or hypobromite with aqueous 2 - carboxyamido - 5 - methylpyrazine, which may be prepared by esterifying 2-carboxy-5-methylpyrazine with a lower alcohol and then reacting with anhydrous ammonia.  The amino compound may be extracted from the reaction products after they have been made strongly alkaline. In an example, 2-carboxy-5-methylpyrazine is esterified with methyl alcohol, the ester reacted with anhydrous ammonia and the resulting amide added to an aqueous solution of potassium hydroxide and chlorine to yield 2-amino-5-methylpyrazine.
Patent GB-719118-A (GB)
Title: Dew-point measuring device and method
IPC: G01N25/68
Filed: 1952-10-10
Abstract: 719,118. Hygrometric apparatus. ILLINOIS TESTING LABORATORIES Inc. Oct. 10, 1952 [Oct. 13, 1951], No. 25499/52. Class 97(3) A dew-point measuring device comprises a housing having a gas sample chamber therein, means for leading a sample of gas into the chamber, a moisture collector in the chamber having'a strongly light-scattering plane surface, means for cooling the collector, and means for measuring the temperature of the gas, the light-scattering surface being such that the deposition of moisture thereon at the dew-point will produce a change in the appearance of the surface. As shown in Fig. 2, the collector 30 is square and flat and fits in the bottom of a recess 25 in a block 22. A cover 23 is hinged to the block and fits in recess 25, holding the collector 30 in place. An aperture 25<SP>1</SP> in cover 23 is closed by a window 51 to form a chamber through which gas is fed by inlet and outlet pipes 55, 56. An expansion valve housed in a recess 24 in the lower part of block 22 comprises a narrow tube 67, Fig. 4, through which a compressed refrigerant passes and expands into cup 70 which is thus cooled. The cup 70 is pressed against the collector 30 by a plate 74 and a spring 77, so that the part of the collector in contact with the cup is cooled. The temperature of the collector in this region is measured by means of a thermocouple 78 pressed into contact therewith. The upper surface of the collector is rendered light-scattering, as by roughening, so that when its temperature reaches the dew-point moisture readily condenses thereon and fills the pits of the surface so that the light is scattered to a lesser extent and a dark spot appears on the collector. As soon as the dark spot is seen, the temperature indicated by the thermocouple is noted. The collector may be a glass or transparent plastic plate with an upper surface made rough as by sand-blasting or etching, and may be darkened by a paint or metal layer on the underside. A metal deposit is preferred as giving better thermal contact. In other forms of the collector, a metal plate has a plastic coating with a roughened surface, or is coated with monomolecular layer of inert crystalline material such as quartz. The formation of the dark spot may be indicated by means of a light-sensitive cell.
Patent GB-734162-A (GB)
Title: Chemical compounds
Filed: 1953-09-15
Abstract: The invention comprises chemotherapeutic and fungicidal compounds represented by one of the formul  R1-R2-R2-R1, R1-R2-R2-R2-R1, R1-R2-R3 and R1-R2-R2-R3, wherein R1 is a thioureido radical (-NH.C(S). NH2), R2 is a N,N-bis-imino-terephthalylidene radical (-N=CH.C6H4.CH=N-), and R3 is a monovalent nitrogen-containing radical chosen from: amino, phenylamino, diphenylamino, methylamino, methylphenylamino, a - and b -pyridylamino, p-sulphaminoanilo and benzalimino.  The compounds are condensation products of terephthalaldehyde monothiosemicarbazones with hydrazine or hydrazine derivatives. Using equimolecular proportions, the products are hydrazones; with half a mol. of hydrazine per mol. of thiosemicarbazone, the products are azines.  Reaction is effected by heating in a solvent, e.g. alcohol or aqueous alcohol.  The examples disclose the preparation of: (1) H2N.C(S).NH.N = CH.C6H4.CH = N.N = CH.C6H4.CH = N.NH.C(S).NH2, using half a mol. of hydrazine in the form of the hydrate: (2) H2N.C(S).NH.N = CH.C6H4.CH = N.NH2, with equimolecular proportions; (3) H2N.C(S). NH.N = CH.C6H4.CH = N.NH.C6H5, from phenylhydrazine; (4) H2N.C(S).NH.N = CH. C6H4.CH=N.NH.CH3 from methyl hydrazine; (5) H2N.C(S).NH.N = CH.C6H4.CH = N.N (C6H5)2, from N,N-diphenylhydrazine; (6) H2N.C(S).NH.N = CH.C6H4.CH = N.N(CH3). C6H5, from N-methyl-N-phenyl-hydrazine; (7) and (8) H2N.C(S).NH.N = CH.C6H4.CH = N. NH.C5H5N, from a - and b -hydrazinopyridine; (9) H2N.C(S).NH.N = CH.C6H4.CH = N.NH. C6H4.SO2NH2, from p-hydrazinophenylsulphamine; (10) H2N.C(S).NH.N = CH.C6H4.CH = N.N = CH.C6H4.CH = N.NH2, from terephthalaldehyde dihydrazone; (11) C6H4(-CH = N.N = CH.C6H4.CH = N.NH.(S).C.NH2)2, using 1/2 mol. of terephthalaldehyde dihydrazone; (12) H2N.C(S).NH.N = CH.C6H4.CH = N.N = CH.C6H5, from benzal hydrazone.
Patent GB-302740-A (GB)
Title: A process for the hardening of iron, mild steel and iron alloys
IPC: C23C8/22
Filed: 1927-09-28
Abstract: 302,740. Lindhorst, H. Sept. 28, 1927. Case-hardening.-In a process for hardening articles of iron, mild steel, and iron alloys, the articles are heated at a temperature of 720‹- 820‹ C. in a hermetically closed chamber with a small amount, e.g. up to 5 per cent, of hardening powder which does not surround the articles and which decomposes to form carbon dioxide and other gaseous products which effect the hardening. A suitable powder contains 50 per cent of lignite or coke, 80 per cent of barium or other alkaline earth carbonate, and 20 per cent of ammonia or ammonium salt or a substance which decomposes on heating to set free ammonia, such as urea, cyanamide, calcium cyanimide or dicyanimide. When only parts of the articles are to be hardened, the remaining parts are protected by spraying or plating with copper.
Patent GB-264228-A (GB)
Title: Improvements in electric lighting and igniting apparatus for motor vehicles
IPC: F02P1/00
Filed: 1925-10-13
Abstract: 264,228. BarÚnyi, K. A. Oct. 13, 1925. Magneto - electric machines; magnetos, driving.-In apparatus for generating and distributing electric currents for lighting and igniting purposes in internal - combustion engines, the ignition interrupter or combined interrupter and distributer are mounted within a casing carrying the gearing between the armature and motor shaft and mounted coaxially with the armature, this casing being of substantially the same diameter as the casing surrounding the armature. As shown in Figs. 1 and 2 the combined interrupter and distributer are mounted in a cylindrical casing 60 which is itself mounted within a lateral recess 58 in a substantially cylindrical casing 2, this casing being coaxially mounted with respect to the armature shaft 3 and forming in effect a lateral continuation of the casing 1 surrounding the armature. The casing 2 contains the gearing between the driving and driven shafts 3, 5 which comprises two sets of gear wheels 6, 7 and 9, 10, the driving, driven and intermediate shaft 8 being supported in ball bearings. The interrupter and distributer are driven from the shaft 3 by bevel gears 11, 13 on a shaft 12 also supported in ball bearings. In a modified form shown in Fig. 5, the interrupter shaft 86 is parallel to the armature shaft 63, the interrupter casing 76 resting in a recess in the cover plate 64 of the end casing 62 which projects into the casing 61 surrounding the armature. The driving shaft 65 carries a gear wheel 66 meshing directly with a pinion 70 on the armature shaft 63 which also engages a gear wheel 80 on the interrupter shaft.
Patent GB-682287-A (GB)
Title: Improvements in or relating to electrical precipitators
IPC: B03C3/78
Filed: 1950-10-20
Abstract: 682,287. Electrostatic precipitation. RESEARCH CORPORATION. Oct. 20, 1950, No. 25626/50. Class 39(i) In a precipitator in which the dust is washed off the collector electrodes by a liquid spray, a perforated, sloping deflector is secured to the electrode to distribute the liquid substantially uniformly over their surface. In a two stage precipitator, the gas entering at 21 passes through a baffle 23 which comprises, Figs. 12 and 13 (not shown), a perforated plate with box-like vertical webs, and reaches a corona discharge zone established between electrodes 31, 32, and a depositing zone between similar electrodes 48, 49, before passing through a spray eliminator 27 to the outlet 22. The construction of the electrodes 32 and 49 is either (a) a series of square section cells of wire mesh enclosing the rod electrodes and surmounted by pyramid shaped mesh deflectors, Figs. 9, 10, 11 (not shown), the cells being clipped together, Figs. 3, 4, 5 (not shown); or (b) a honeycomb arrangement of hexagonal section cells of wire mesh surmounted by hexagonal pyramid shaped mesh deflectors, Figs. 6, 7, 8 (not shown); or (c) solid parallel plate electrodes surmounted by a sloping mesh deflector, Figs. 14, 15 (not shown); or (d) parallel plates of mesh bent over at the top to form the deflectors, Fig. 16 (not shown). The liquid spray may be from sprinkler nozzles or from plain nozzles with moving deflectors mounted beneath Fig. 18 (not shown).
Patent GB-1245678-A (GB)
Title: Digital organ and circuits therefor
Inventor: DEUTSCH RALPH
IPC: G10H7/12
Filed: 1969-05-20
Abstract: 1,245,678. Electronic organ. NORTH AMERICAN ROCKWELL CORP. 20 May 1969, No. 25645/69. Heading G5J. In an electronic organ a waveform, Fig. 2a, characteristic of the timbre of a particular rank of pipes is stored in digital form, e.g. by storing either successive amplitudes, Fig. 2c, or by storing successive amplitude differences, Fig. 2d, the storage being either "read-only", e.g. diodes, or "erasible", e.g. ferrite cores, and the waveform is read out (i.e. the sequence of digitized sample amplitudes is read out) repetitively at a frequency corresponding to the desired note, converted into analogue form and applied to a sound-producing system. As described, depression of a key causes a frequency synthesizer 10, Fig. 1, to produce a frequency of N times the note frequency, where N is the number of sample points on the' stored waveform (N = 48 is said to be convenient). This frequency is then routed 20 to any one of ten read control units 22 that happens to be spare (no more than ten notes can be played simultaneously) to cause the repetitive readout of a wave shape 24 selected by a stop tab 25. In the preferred embodiment, each waveform is stored as an array of diodes, Fig. 4, each array, for example the 8<SP>1</SP> diapason array having its row conductors subsequentially marked by a ring counter 70 (which constitutes a read control unit 22) to produce a sequence of parallel digital words on its column conductors. The output from a selected array of diodes, for example the 8<SP>1</SP> diapason array via a gate 71, is fed in parallel to ten gates 75 which correspond to the ten counters 70, so that if, for example, the frequency resulting from depression of a key is routed 20, Fig. 1, to counter 70b, Fig. 4, on a lead 48f b , then whichever stop is selected, the output sequence of digital words will appear at gate 75b. The word sequences from each gate 75 pass via individual attack and delay circuits 26 which cause the resulting sound to rise from zero, Fig. 6, when a key is depressed, to a maximum at a time t 1 , which is seven cycles of the note frequency after the key was depressed, to remain level until a time t 2 , when the key is released, and then to decay to zero over a further period of seven cycles of the note frequency. Logarithmic decay, Fig. 7, is effected by attenuating each sequence of digital words by a factor of two, this being performed digitally by a one-bit shift of the words (Fig. 9, not shown). Once the sequence of words for each note has passed via the attack and decay circuits 26, Fig. 1, all the notes sounded simultaneously are digitally added 28, and the result, for example, Fig. 5d, is applied to an audio system. The resulting analogue signal may be smoothed, but preferably it is left unsmoothed so that the h.f. components produce background hiss as in genuine pipe organs.
Patent GB-1427158-A (GB)
Title: Composite helicopter blade
IPC: B64C27/46
Filed: 1973-05-30
Abstract: 1427158 Helicopter rotor blades UNITED AIRCRAFT CORP 30 May 1973 [31 May 1972 (2)] 25652/73 Heading B7W A helicopter rotor blade has a primary structure comprising two half-components 36a, 36b joined by bonding on the chordal plane 38. Each component has a lightweight core 40 extending substantially from root to tip bonded to a half-spar along its length, each spar comprising bonded span-wise extending fibres extended from the tip towards the root where they are looped over a tear-drop section part 74 of a root attachment fitting 60 and then carried back to the tip, thereby forming a tensileload-carrying member 41. The structure is assembled by bonding the two core halves and the two root fittings to give a unitary spar structure, bonding profiled filler material 110 to the aft face of this to form the trailing portion of the blade, positioning profiled nose balance weights 112 and enclosing the whole by a skin 90 formed by diagonally laid strips. A splice cap 116 may be applied to the abutted leading edge portions and an abrasion strip 118 may be provided. In an alternative construction (Figs. 12, 13, not shown) the spar is made up as an oval section member with the outer skin acting as a tube with filler insert, the trailing edge fairing being shaped on its forward face to accommodate the spar profile. In a still further embodiment the spar has a single spanwise extending looped strip with a pin passed through the loop and secured to a forked fitting on the rotor head (Fig. 19, not shown).
Patent GB-676402-A (GB)
Title: Improvements in electric resistance brazing and other electric resistance heat generating apparatus
IPC: B23K1/00
Filed: 1950-10-20
Abstract: 676,402. Soldering and brazing. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Oct. 20, 1950 [Dec. 30, 1949], No. 25654/50. Class 83 (iv). [Also in Group XI] In electric resistance brazing or other resistance heat generating apparatus a pressure exerting electrode is provided with a workengaging face of titanium. In an embodiment, tips 14, 15 of titanium are secured to electrodes 12, 13 of high electrical conductive material, copper, for example by a screwed connection, while the electrodes 12, 13 are connected to a transformer secondary 7, the electrode 12 being connected through a flexible band 9. The primary 5 is energized when a switch device 3 is closed by a timer 1 controlled by a switch 2. It is stated that heat is generated in the titanium tips and conducted and radiated to the workpieces 16 separated by a brazing metal. The electrodes may be wholly of titanium and may be employed in a portable apparatus.
Patent GB-453975-A (GB)
Title: Improvements in a device for cleaning and keeping artificial dentures
IPC: C09C1/36
Filed: 1935-09-17
Abstract: 453,975. Denture containers. PARIZOT, G., Adolfsberg, Stockholm. Sept. 17, 1935, No. 25785. Convention date, Oct. 22, 1934. [Class 81 (i)] A device for holding dentures when not in use and for removing soft tartar and bacteria therefrom by treatment with a cleaning liquid, comprises a liquidtight container 1 fitted with a removable holder having means for retaining the dentures in place. The holder may consist of a base-plate 4 having uprights 5 which are connected by a yoke 6 and serve as guides for a sliding frame 8 held in adjusted position by friction or by springs or screws. The denture is held against the base 4 by means of helical springs 10 or by leaf springs, rubber bands or elastic cushions mounted on the frame 8, or by elastic bands directly engaging, and adjustable along, the uprights 5. A spring 11 on the yoke 6 bears against the lid 2 of the container. The base 4 may have lateral shoulders to prevent lateral movement of the dentures. In a modification the frame 8 may be mounted on rotatable screw spindles.
Patent GB-474661-A (GB)
Title: Improvements in light reflecting devices for use as or with display devices, signs and the like
IPC: G09F13/16
Filed: 1936-01-30
Abstract: 474,661. Jewellery. HUNTER, F. Jan. 30, 1936, No. 25852 /37. Divided out of 469,743. [Class 43] [Also in Groups XVIII, XV, and XX] Imitation jewellery comprises a plurality of beads of light-transmitting synthetic resin which are secured to a base by adhesive, the beads having behind them an opaque or translucent dispersively reflecting background. The adhesive preferably comprises a synthetic resin. Specification 469,743, [Group XVIII], is referred to.
Patent GB-912966-A (GB)
Title: Improvements relating to containers for use in nuclear reactors
Inventor: JAMES JOHN AYLWARD
IPC: G21C3/20
Filed: 1958-08-12
Abstract: A Be container for a nuclear fuel element has a coating of Cr The coating may be applied by electro- or vapour deposition, and there may be intermediate layers of Cu, Zn or both.  The inside of the container may also be coated, particularly when the fuel is uranium.
Patent GB-280689-A (GB)
Title: Improvements in and relating to electric contact plugs, couplings and the like
IPC: H01R13/02
Filed: 1926-10-18
Abstract: 280,689. Wadsworth, L. H. Oct. 18, 1926. Plug couplings. - Plugs, and thermionic valve pins are made resilient by being formed with depressions or corrugations, such plugs may be cylindrical, tapered, Or curved. A hollow plug a is formed from sheet metal and has a closed entrant end a<1>, drilled at a" for attachment of a lead by soldering, longitudinal depressions a<2> impart the required resiliency and the upper end is serrated at a<5> to afford an anchorage. Sockets are formed with corrugations on the external surface. A spring may be used to reinforce the resiliency of either the plug or socket and a plug and socket may be formed as a combined unit.
Patent GB-468659-A (GB)
Title: Improvements in the manufacture and production of chromite refractories
IPC: C04B35/01
Filed: 1936-09-24
Abstract: Defects in chromite refractories are avoided by subjecting natural chrome ore to a preliminary heat treatment in the presence of magnesium hydroxide or a magnesium salt furnishing sufficient magnesium oxide to convert the low melting point gangue into forsterite, but insufficient to decompose the chromite spinel of the ore.  This treatment is carried out below the melting point of the chromite spinel.  Dead burned magnesium oxide may also be added to the mix before or after this heat treatment, and the mix is thereafter made up into suitable grain sizes, tempered, shaped and burned.  Specification 409,130 is referred to.
Patent GB-1284476-A (GB)
Title: Potassium ion sensitive electrode
IPC: G01N27/30
Filed: 1970-05-29
Abstract: 1284476 Electro-chemical analysis CORNING GLASS WORKS 29 May 1970 [3 June 1969] 25977/70 Heading G1N [Also in Division C2] A potassium ion sensitive electrode has a liquid organic ion-exchange "membrane" comprising p-CHLORO or p-PHENOXY SUBSTITUTED POTASSIUM TETRAPHENYL-BORATES, in an organic solvent, preferably nitroaromatic compounds such as nitrobenzenes. (The use of higher nitrated explosive solvents should be avoided!). The ion-exchange liquid may be used in cells such as that shown in Specification 1177406. The end of the cell should be curaffed in a dialysis membrane for use in testing blood-serum Fig.3 (not shown).
Patent GB-951600-A (GB)
Title: Improvements in and relating to the manufacture of carbon tetrachloride
IPC: C07C17/093
Filed: 1960-07-27
Abstract: C Cl4 is made from CS2 by utilising the reactions:  (1)  2CS2 +6Cl2 --> 2C Cl4 +2S2Cl2  (2)  2S2Cl2 +CS2 <FORM:0951600/C2/1> C Cl4 + 3S2 wherein a mixture of 10-35% of CS2, 25-45% of CCl4 and 25-45% of S2Cl2 and Cl2 is flowed through one or more chlorination zones at 50-105 DEG C. in which reaction (1) occurs giving a mixture of CCl4 and S2Cl2 containing an amount of 0.03 to 0.1% of CS2 which is continuously distilled to recover CCl4 overheads and still bottoms comprising S2Cl2. This S2 Cl2, preferably mixed with a little Cl2 to form 1-5% of S Cl2, which acts as a catalyst for reaction (2), is treated with a stream of CS2 to form (reaction (2) a mixture of CS2, CCl4, S2Cl2 and S. Other catalysts for this reaction are iron and ferric chloride. The reaction mixture is heated to a temperature above the B.P. of S2Cl2 but below the B.P. of S e.g. 180-275 DEG C., preferably 200 to 240 DEG C., to separate a mixture of CS2, CCl4 and S2 Cl2 from the S, which is recycled to the chlorination stage where fresh CS2 may be added. The S may be stripped with CS2 vapour and the resultant vapours used to provide the CS2 for the reaction with S2Cl2. Preferably the mixture fed to the chlorinator has 10-25% CS2, 35-45% CCl4 and 35-45% S2Cl2. When chlorination is effected in a plurality of zones 80-98% of the CS2 is reacted in the zone or zones preceding the final one. In this embodiment the chlorination gas may be chlorine containing diluents e.g. air, and the degree of chlorination, in any zone, may be controlled optically by a colourimeter. The distillation of the CCl4 from the S2Cl2 is preferably effected so that 3-7% of CCl4 remains in the bottoms. Examples are given and apparatus described (not shown). Specification 874,607 is referred to.