baber/WOPTO huggingface dataset:
Patent GB-1220461-A (GB)
Title: Improvements relating to liquid-permeable liquid-absorbent porous sheet materials
Inventor: FIELD BRAHAM ROWLEY
IPC: D04H1/4258
Filed: 1967-02-15
Abstract: 1,220,461. Paper. ALKALINE BATTERIES Ltd. 12 Feb., 1968 [15 Feb., 1967], No. 7359/ 67. Headings D2A and D2B. A porous sheet material, suitable for use as a separator in electric storage batteries using an alkaline electrolyte is made by forming a sheet of (a) fibres of thermoplastic polymer plastics material, at least part of which is nylon staple fibre, (b) fibres of regenerated cellulose, (c) a thermoplastic polymeric plastics powder which includes nylon powder, and (d) cellulosic powder, the fibres being randomly arranged in a compact non-woven mat and the powders distributed therethrough, and heating the sheet to sinter the thermo-plastic constituents. The proportions by weight are:-fibres 80 to 95% of which 50 to 80% are thermoplastic, powder 20 to 5%. An inert powder such as barium sulphate or titanium dioxide may also be present. In the Example, 45% of nylon staple fibre, 45% of regenerated cellulose staple fibre, 2¢% nylon powder, 2¢% regenerated cellulose powder and 5% titanium dioxide powder are formed into a sheet by papermaking techniques, and then passed through heated rolls to sinter the nylon and reduce the thickness to 0.21 mm.
Patent GB-872400-A (GB)
Title: A continuous process for the production of "beer"
IPC: C12C11/00
Filed: 1957-07-26
Abstract: The subject-matter of this Specification is identical with that described in Specification 872,391, but the claims are concerned with the addition and dispersal of unfermented wort or partially fermented wort in a body of continuously fermenting wort either continuously or at such frequent intervals as to prevent the starvation of the suspended yeast, whereby accelerated maturing of the beer produced is achieved without any substantial autolysis of the yeast.
Patent GB-684214-A (GB)
Title: Colour television transmitter
IPC: H04N9/09
Filed: 1951-03-30
Abstract: 684,214. Colour television. RADIO CORPORATION OF AMERICA. March 30, 1951 [April 1, 1950; June 30, 1950], No. 7449/51. Drawings to Specification. Class 40 (iii). In a colour television transmitter employing a plurality of television cameras having different colour responses, at least one camera is responsive to more than one primary colour, the output of one such camera being combined with that from at least one other camera to derive a resultant signal which corresponds to a single primary colour only. It is stated that by this means the signal-to-noise ratio may be increased. In a preferred arrangement, the transmitter comprises three cameras having blue, red and panchromatic responses. The outputs from the " red " and " blue " cameras go to " red " and " blue " channels and are also inverted and then combined with the output of the panchromatic camera to give a green " signal which is applied to a " green channel. As applied to a simultaneous-transmission or frame-sequential system, the high-frequency components (e.g. 2-4 Mc/s.) in the outputs of the red and blue cameras are filtered out and are replaced by the high-frequency components of the " panchromatic " signal. In this way blurring of detail due to faulty registration of the three cameras is avoided. The arrangement may also be applied to a dot-sequential transmission system wherein the three colour channels are sampled sequentially at a high rate. In this arrangement the low-frequency components only of each channel are sampled while the high-frequency components of the panchromatic signal are made to by-pass the sampling device and combined with the output thereof. In a modification of this arrangement, the whole frequency range (0-4 Mc/s.) of the panchromatic signal is made to by-pass the sampling device in addition to being employed to derive the green signal for application, together with the red and blue signals to the sampler. The sampler output is applied through a high-pass (2-4 Mc/s.) filter and then combined with the by-passed panchromatic-signal to obtain the complete composite picture signal. In an alternative arrangement one of the colour cameras is replaced by a camera responsive to two primary colours. In another arrangement, all three cameras are responsive to two primar colours, the outputs being so combined as to derive signals representative of the three primary colours.
Patent GB-1182761-A (GB)
Title: Azo Reactive Dyestuffs
Inventor: SCHUNDEHUETTE KARL-HEINZ
IPC: C09B62/006
Filed: 1968-02-15
Abstract: 1,182,761. Reactive azo dyes. FARBENFABRIKEN BAYER A.G. 15 Feb., 1968 [17 Feb., 1967], No. 7453/68. Heading C4P. Reactive azo dyes of Formulµ I and II in which one of X and Y is a grouping -N(R 3 )A and the other is hydrogen or a grouping -N(R 3 )A, wherein A is a reactive radical (i.e. a radical which has at least one substituent atom or group capable of reacting with hydroxyl groups of cellulose or with the amide groups of wool and is split off to thereby establish a covalent band) R 3  is hydrogen or an alkyl radical, R is an aromatic-carbocyclic or aromatic-heterocyclic radical, n is 0 or 1, Me is a metal, e.g. Cu, Ni, Cr or Co, R 1  is an aliphatic, aromatic - carbocyclic or aromatic - heterocyclic group in which -Me-Z- or Z 1  is adjacent to the azo group, Z is a substituent linked with a metal complex, e.g. -O- or -NH-, Z 1  is a group able to form a metal complex, preferably hydroxy or amino, R 2  is H or Cl, or a group able to form a metal complex, are prepared by conventional acylation, metallization, coupling and diazotization processes. The reactive radical A may be a quinonaline, pyrimidine, triazine, phthalazine, isothiazole or acryloyl substituent. Red-blueviolet and yellow dyes are obtained.
Patent GB-1173885-A (GB)
Title: Voltage-Controlled Oscillator with Time-Ratio Control
Inventor: VANDEGRAAF JOHANNES JACOBUS
IPC: H03L7/00
Filed: 1968-02-15
Abstract: 1,173,885. Voltage-controlled oscillators. GENERAL ELECTRIC CO. 15 Feb., 1968 [3 April, 1967], No. 7526/68. Heading H3A. A voltage-controlled oscillator comprises a tuned circuit including an inductance 14 both ends of which are connected to earth through respective transistors 10 and 11 which are rendered conductive alternately at a frequency much greater than that of the oscillator so that the effective inductance, and therefore the output frequency, depends on the on-off ratio of the switching waveform applied to the transistors. The oscillator may be used to demodulate an input signal of the vestigial sidebandtype in a balanced demodulator 2 which produces an error signal on line 5 if the oscillator is not in the required phase. This error signal is fed to a differential amplifier 52 which provides outputs on lines 50 and 51 which control the on-off ratio (but not the frequency) of a freerunning multivibrator 25 which provides the switching waveforms to transistors 10 and 11.
Patent GB-354335-A (GB)
Title: Improvements in, or relating to, electrical conduit fittings
IPC: H02G3/06
Filed: 1930-03-08
Abstract: 354,335. Pipe joints. SIMPLEXCONDUITS, Ltd. and MoLOUGHLIN, H. F., Simplex Works, Garrison Lane, Birming- ham. March 8, 1930, Nos. 7592 and 36245. [Class 99 (i).] Conduit joints, elbows, tees, &c., and junction boxes are made in two parts that are brought together edge to edge, the edges being formed or provided with dovetailing members that connect the two parts. One part a<1>, Fig. 3, of an inspection-type tee junction is formed at its edge with projections e and recesses e<1> that engage with recesses f and projections f<1> on the other part b, the projections being displaced laterally to bring them into engagement. Reinforcing ferrules g are forced over each arm of the tee. An opening for an inspection cover c is cut in one part b of the fitting, and the parts may be pressed from sheet metal. The abutting edges may be formed with registering recesses, illustrated in Fig. 23 in a junction box, into which a key-piece i is pressed. Separate socket pieces for fitting to junction boxes may be similarly built up, and the thickened ends of the junction pieces with ferrules g may be drilled and tapped for a bonding screw.
Patent GB-591845-A (GB)
Title: Improvements in flow meters
IPC: G01F1/42
Filed: 1945-03-27
Abstract: 591,845. Fluid-flow meters. MATHIESON ALKALI WORKS. March 27,1945, No. 7733. Convention date, March 21, 1944. [Class 69 (i)] A fluid-flow meter having a wide range of capacities is formed by inserting between an inlet 7 and an outlet 12 a restricted passage comprising a plurality of capillary tubes 24, the bores of which vary in size, the larger preferably being exact multiples of the smallest. A multi-way valve 6 with an indicating hand 3 controls the flow of the fluid through any particular one or combination of silver tubes 9. leading to the glass capillary tubes 24. The pressure difference so created is measured by any suitable manometer such as 16, which may maintain a given pressure difference or record the quantity of fluid passing through the meter.
Patent GB-137691-A (GB)
Title: Improvements relating to flax and like deseeding machines
IPC: D01B1/12
Filed: 1919-03-28
Abstract: 137,691. Rea, J., and Mellon, J. March 28, 1919. No Patent granted (Sealing fee not paid). Thrashing-machines.-Two oppositely-rotating shafts a, b carry one or more rows of hooks f which interengage at the points g and strip the seed balls from the heads of the flax &c., which may be presented to them by means of a sliding table h, on which the stems may be clamped. The table may be operated by hand or power.
Patent GB-177049-A (GB)
Title: Improvements in and relating to machines for grinding, polishing and burnishing slabs or plates of material, such as marble, glass, or the like
IPC: B24B7/24
Filed: 1921-03-12
Abstract: 177,049. Carrie, J. March 12, 1921. Flat extended surfaces, surfacing and polishing. -In a machine for grinding, polishing, and burnishing plates of glass, marble, &c., the plate is carried by a table, which is reciprocated beneath two grinding or polishing discs having planetary motion, and the pressure of the discs on the work is varied by raising or lowering the head carrying the discs. The glass &c. is carried on a table 4, which is reciprocated on tracks 6 by rack-andpinion gearing 7, 8 driven, through a shaft 9, worm-gearing 11, and variable-speed friction gearing 13, 14, by open and crossed belts engaging pulleys 20. The belts are shifted by a fork 15 operated, through levers 17, 19 and an arm 22, by dogs 23, 24 mounted on the table. The grinding or polishing element comprises two discs 1 carried by arbors 26 mounted with slight axial freedom in a head 27, which is carried by a vertical shaft 28 mounted in bearings 29, 30 carried by beams 2. The bearing 30 carries a stationary gear 31, which, on rotation of the head, drives the discs through idle gears 32 and pinions 34. The shaft 28 is slidably keyed to a bushing 37' carrying a bevel-gears 37, and is driven by a bevel-gear 36 carried by a shaft 35 driven from the pulley 20. The shaft and the head are supported by a collar 45<1> on the shaft, which rests on a threaded sleeve 45; the sleeve may be raised or lowered by rotation of an internally-threaded bevel-wheel 44, which engages the sleeve and is rotated, through worm-gearing, by a hand-wheel 38. In operation, a light cut is first taken from the work by adjusting the head so that, owing to the axial freedom of the arbors 26, the pressure of the discs on the work is due to the weight of the discs only. A heavy cut is then taken by lowering the head so that the pressure of the discs is due to the full weight of the parts.
Patent GB-823393-A (GB)
Title: New metal complexes of benzene-monoazo-pyrazolone dyestuffs
IPC: C09B45/16
Filed: 1956-03-14
Abstract: The invention comprises chromium complexes of dyestuffs of formula <FORM:0823393/IV(c)/1> which are free from sulphonic and carboxylic acid and sulphonamide groups and where R is the residue of an o-aminobenzene-halogen-carboxylic acid, R1 is an aliphatic or a phenyl radicle or a carboxylic acid ester or amide group and R2 is H or an aliphatic or phenyl residue which may bear in m and/or p-position one or several halogen substituents.  They are made in conventional fashion by metallizing the dyestuffs obtained by coupling appropriate diazotized aniline carboxylic acids and pyrazolones.  Specified diazo components are 2-amino-4-, -5- and -6-mono-, 3,5-di- and -3,4,5-tri-chlorbenzene carboxylic acids. Specified coupling components are 1-phenyl-3-methyl-5-pyrazolone, 3-methyl-5-pyrazolone, 1-phenyl-5 - pyrazolone - 3 - carboxylic acid ethyl ester and amide, 1,3-diphenylpyrazolone, 1-(41-, 31-mono- and 31,41-di-chlorophenyl)-3-methyl-5-pyrazolones. Metallization may be effected in the presence of other metallizable dyestuffs which are free of sulphonic acid groups. The 1,1-complexes may be reacted with colourless complex-forming compounds as in Specification 692,073. The products dye wool, silk, casein wool and leather and poly-amide and -urethane fibres in yellow shades from neutral to weakly acid baths.  They also colour organic solutions, plastic masses, e.g. lacquers, varnishes and articles made from cellulose esters or ethers and acetate silk.  Examples are provided of the preparation of the dyestuffs from certain of the components listed above and their use in dyeing processes.
Patent GB-779867-A (GB)
Title: Improvements in beadings, mouldings or the like
IPC: B60J10/00
Filed: 1952-11-12
Abstract: 779,867. Mouldings. BRIGHT, T. J. R. Nov. 3 1953 [Nov. 12, 1952], No. 8014/56. Divided out of 779,866. Class 20(4)  . A beading or moulding comprises a channel shape clip 1 which is capable of universal bending movement and has along one edge an inturned lip 2 for making positive engagement with lateral projections 7 on a flange 6 of a vehicle body, or with a series of spaced spring tags frictionally mounted on the flange 6, the clip 1 carrying a closely fitting ornamental covering 3 which hides the clip 1 from view when mounted on the flange 6. The clip 1 which may be of metal or plastic material is slotted at 8 from opposite edges alternately to allow the clip 1 to be bent around curves of small radius. The covering 3 which may be a woven fabric with or without a pile surface, or of rubber or plastic material is adhesively secured to the clip 1, a layer of thin open mesh material 4 such as scrim being interposed if necessary. One edge of the covering 3 is inturned beneath lip 2 and the opposite edge is turned inwardly and upwardly. The Provisional Specification also includes the subject-matter of Specification 779,868. Specifications 649,137, 705,093 and 707,757 also are referred to.
Patent GB-866776-A (GB)
Title: Improvements in or relating to containers
Inventor: ADER GEORGE
IPC: B29D22/00
Filed: 1957-03-12
Abstract: 866,776. Laminates. ARTRITE RESINS Ltd. June 12, 1958 [March 12, 1957], No. 8173/57. Class 140. [Also in Group XXVIII] Containers such as tanks, troughs, ducts or pipes are made by preforming rigid polyvinyl chloride into the form of the container, applying an outer layer of glass fibre reinforced unsaturated polyester resin dispersed in a monomer, and causing or allowing the resin to cure or set. The monomer may be a " solvent monomer," i.e. one capable of softening the polyvinyl surface. Alternatively the polyvinyl chloride preform may be first coated with a solvent monomer, a thin solution of the resin in a solvent monomer, or a solution of a solvent monomer in a volatile solvent such as acetone which is allowed to evaporate. Examples describe the application to a tank of welded thin gauge P.V.C. of (a) glass fibre cut to size and brushed with a mixture of an ethylene glycol/ maleic/phthalic anhydride condensation product and methyl methacrylate as solvent monomer, (b) a thin coating of the mixture in (a) also containing silica, followed by glass cloth which is brushed with a mixture of the polyester of (a) and styrene monomer, (c) a coating of butyl methacrylate, as solvent monomer, followed after 1-2 hours with glass fibre which is brushed with the mixture of (b), all the resin compositions containing a peroxide catalyst and cobalt naphthenate as accelerator and being allowed to set. In a further example extruded P.V.C. pipe is coated with a mixture of acetone and vinyl toluene and after about ¢ hour is wrapped with a tape of woven glass fibres which is then brushed with the resin-styrene mixture of (b) above. The Provisional Specification describes also the use of epoxy resins instead of polyesters, and the application of the invention to extruded polythene pipes.
Patent GB-1129547-A (GB)
Title: Improvements in or relating to clutch devices
Inventor: HASKINS BERNARD JOHN
IPC: F16D7/04
Filed: 1967-02-21
Abstract: 1,129,547. Overload release clutch. ROLLS ROYCE Ltd. 21 Feb., 1967, No. 8202/67. H ading. F2C. An overload release positive clutch assembly comprises ind pendent output clutch discs 15, 16 normally held in engagement with an axially located input disc 13 therebetween by respective belleville springs 19, 20, the discs having interengaging tapered facial projections 14 so 'that an overload on either one of the output d'scs causes rotation of said one disc relative 'to the input disc 13 and hence axial separation thereof, the respective spring 19 or 20 being forced over-centre to hold its clutch disengaged until it is manually reset. In a combined throttle shut-off cock, and emergency fuel control unit cambox for an aircraft jet engine, the hub 12 of a clutch disc 13 with three facial projections 14 on each side is splined to a shaft 1 rotatable by a cockpit throttle lever (not shown). Discs 15, 16 carrying levers 17, 18 respectively connected to normal and emergency fuel control systems, are rotatable and axially movable on the hub 12. Belleville springs 19, 20 secured to the discs 15, 16 respectively engage annular slots in the hub 12. If either fuel control linkage seizes, the respective clutch is disengaged. A cam 6 splined to the shaft 1 engages a gear wheel 7 on a shaft 8 on which is secured a lever 11 connected to the fuel supply shut-off cock.
Patent GB-1212718-A (GB)
Title: Photosensitive resist composition
IPC: H05K3/38
Filed: 1969-02-14
Abstract: 1,212,718. Photo-resist materials. PHILIP A. HUNT CHEMICAL CORP. Feb. 14, 1969 [Feb.16, 1968], No. 8295/69. Heading G2C. A photo-resist composition for use on a copper support comprising a polyvinyl cinnamate a photosensitizer, an organic solvent and oxalic or fumaric acid. The acids are stated to improve the adhesive to the copper solvent and reduce swelling when the resist is developed. The compositions are coated on a copper support which may be laminated to a phenolic resin layer, imagewise exposed, optionally baked at 150‹ or 250‹F, developed by hot vapours of trichloro-ethylene followed by a rinse in cold trichloroethylene to produce the resist.
Patent GB-1273973-A (GB)
Title: Post driving attachment
Inventor: MORRIS THOMAS
IPC: E02D7/10
Filed: 1968-03-09
Abstract: 1,273,973. Pile driving. T. MORRIS. 6 June, 1969 [9 March, 1968; 15 Feb., 1969], No. 11647/68. Heading E1H. Apparatus for driving a post 5 comprises a hammer head 4 pivotally mounted on an arm 1 having a bracket 8 fixed thereto, vertical oscillation of the arm to make the head 4 strike the post being effected by vertical oscillation of a pair of links 2a pivotally attached at 9 to the body of a tractor 3 and at 6a to a cross-member 6 rigidly secured to the arm. The head 4 is kept in a vertical attitude by links 12, 13 having pivotal connections at each end thereof, a similar link 14 extending from the link 13 to the tractor. A link 2b extending between the links 2a from a pivotal connection 11a on the link 14 to a similar connection 7 on the bracket causes the arm to oscillate about the connections 6a with a relatively large amplitude in response to oscillation of the links 2a about the connections 9 with a relatively small amplitude, oscillation of the links 2a being effected by hydraulicallyoperated mechanism 10 on the tractor. The amplitude of the arm's oscillations can be adjusted by selecting for the link 2b a different one of the alternative connections 7.  (For Figures see next page)
Patent GB-472279-A (GB)
Title: Improvements in apparatus for the electro-deposition of metals
IPC: C25D17/14
Filed: 1936-03-20
Abstract: 472,279. Electrodeposition of metals. ADEY, R. H. March 20, 1936, No. 8395. [Class 41] A pad electrode for plating comprises an electrolyte reservoir and means for varying the point at which electrolyte is fed to the pad according to whether it is applied to a horizontal or a vertical surface. In the apparatus shown, electrolyte is forced from a reservoir 4 by a piston 9 through a pipe 17 to a valve-box 19. In the position shown the electrolyte is discharged by a pipe 22 to the middle of the perforated base 25 of the casing whence it percolates through an absorbent pad 27, the perforated anode 29 and an outer absorbent pad 28. The pads are secured to the casing by spring clips 26. The anode is provided with an extension engaging a spring blade 31 connected to a contact socket. The piston 9 is operated by a push-rod 12 through a bell-crank lever 11 which is returned on release by a spring 15 On turning the apparatus to a vertical position a ball 24 falls so as to close the pipe 22 and unclose a pipe 23 whereby electrolyte is supplied directly to the upper part of the outer pad 28. In a modification the base of the apparatus and the associated electrode and pads are shaped for application to a curved surface.
Patent GB-492894-A (GB)
Title: Improvements relating to the manufacture and treatment of photographic printing papers
IPC: G03C1/775
Filed: 1937-03-23
Abstract: 492,894. Treating photographic prints. GROVES, W. W. (I. G. Farbenindustrie Akt.- Ges.) March 23, 1937, No. 8520. [Class 98 (ii)] To facilitate the washing of photographic prints free from the sodium thiosulphate. used for fixing, there is introduced into the paper support or the barytes or the emulsion before processing a water-soluble substance which is more strongly absorbed by the materials used in the production of the paper, especially the barytes, than the sodium thiosulphate and the soluble silver salts formed during fixing. The substances are preferably introduced during manufacture of the paper, but the paper may be impregnated with a solution at any time prior to developing. Suitable substances which do not affect the emulsion, or colour the barytes, are metaphosphoric acid or its salts, or polymers of these substances, and salts of the rare earths and thorium.
Patent GB-566801-A (GB)
Title: Improvements in or relating to building units and structures formed therefrom
IPC: E04C1/39
Filed: 1943-05-31
Abstract: 566,801. Building blocks. RICE, C. J. May 31, 1943, No. 8673. [Class 87 (i)] A building unit, more particularly for use in association with the building units of arch. like form set out in Specification 561,881, is provided at one end with a projection 7 and at the other end with a corresponding recess 5 for interlocking and is also provided on either or both the front and rear faces with a design such as a raised panel 3 or an arch formation. Fig. 18 shows a modification wherein the ornamentation consists of a partial arch 24 and a vertical portion 23 simulating a post.
Patent GB-274932-A (GB)
Title: Improvements in or relating to shot cartridges
IPC: F42B7/04
Filed: 1926-04-01
Abstract: 274,932. Greener, H. April 1, 1926. Gun cartridges.-The whole or the greater part of the length of the portion a<1> of a cartridge case a containing a shot charge e is reduced in diameter, so that, when the cartridge is loaded into the chamber of a gun, the part of reduced diameter is surrounded by a free annular space. The shoulder between the parts of reduced and full diameter retains the powder wad c in place, and opposes a resistance to its displacement. This controls the combustion of the powder charge b and enables the shot charge to leave the cartridge case and to shorten and expand to the full diameter before the powder gases develop higher pressures.