baber/WOPTO huggingface dataset:
Patent GB-726798-A (GB)
Title: Improvements in malting and drying apparatus
IPC: C12C1/033
Filed: 1952-07-28
Abstract: 726,798. Drying apparatus. STEWART, I. M., BOBY, Ltd., R., and WESSON, J. P. July 28, 1953 [July 28, 1952], No. 18974/52. Class 34 (2). [Also in Group VI] In malting and drying apparatus, of the type including a rotatable cylindrical drum 1 with a perforated grain floor 2 and means for creating a difference in pressure between an air inlet and an air outlet to pass air through the grain, the air inlet and outlet are both at one end of the drum. In one construction, a bulkhead 3 terminating at the floor 2 is provided in the drum and is joined to the end 4 by a partition 5 having an extension 5a, which divides a cylindrical axial duct 7 penetrating the end 4 into two passages, one of which leads to a side port 8 communicating with a stationary air duct 9. The other passage has an axial port 10 admitting a stationary air duct 11. The floor 2 extends from the other end of the drum as far as the bulkhead which, beyond the partition, is provided with perforations 6. Seals 12 are provided so that the drum can be rotated without disconnecting the ducts 9 and 11. Air may flow through the apparatus in the direction indicated by arrows or in the opposite direction. In another construction, the partition extends longitudinally between the bulkhead and one end of the drum, which is penetrated by two concentric axial air ducts, one of which communicates, through an aperture in the partition, with air on one side of the grain floor, and the other communicates, through holes in the bulkhead, with air on the other side of the grain floor. Stationary ducts engage the two concentric ducts, which are sealed from each other and from the air outside.
Patent GB-1468710-A (GB)
Title: Methods of forming re-entrant cavities in the surface of heat  exchange members or ebulators
IPC: B21D31/00
Filed: 1975-04-30
Abstract: 1468710 Making heat exchangers; rolling; stamping UNITED KINGDOM ATOMIC ENERGY AUTHORITY 30 April 1975 [30 April 1974] 18981/74 Headings B3A B3M and B3Q [Also in Division F4] Nucleation sites are formed in a heat exchange or ebullator member 10 by forming discrete indentations 11 in the member and working the member to partially close the identations and form re-entrant cavities 18, 19. An aluminium heat exchanger plate or tube may be formed, or an ebullator which may be formed of a ceramic material. The starting blank may be flat or tubular and the sites formed on at least part of the inside or outside of the tube. The identations 11 are formed by one or more spikes on a platen or roller, Fig. 1 (not shown). Raised margins 15 about the identations are flattened between rollers 16, 17 to form the re-entrant cavities. The member 10 may be formed into a tube and seam welded before or after flattening the margins 15. Alternatively, the strip 10 may be twisted to form a ribbon ebullator.
Patent GB-446714-A (GB)
Title: Improvements in screwdrivers for socketed screws
IPC: B25B15/00
Filed: 1935-07-03
Abstract: 446,714. Screws and screwdrivers. PHILLIPS SCREW CO., Vancouver National Bank Building, 6th Street, Vancouver, Washington, U.S.A. July 3, 1935, No. 19053. Convention date, July 3, 1934. [Class 61 (iii)] [See also Group XXV] A screwdriver for screws provided with a non-circular inwardly tapering socket and having a number of concave flutes providing a number of tapering vanes engaging the grooves of the correspondingly formed screw socket has the taper of the screwdriver end relative to the axis different from the taper of the screw socket to enable it to wedge therein for holding the screw on the screwdriver. The vanes 8 of the screwdriver are formed by the converging walls 4, 7 of the flutes and the lines B, Fig. 5, represent the meeting lines of angularly disposed surfaces along the centres of the flutes. These lines B on the driver correspond with the lines of intersection 12 of the surfaces 11 of the walls of the screw socket but are at a steeper angle to the screw axis than the lines 12 so as to firmly grip thereon at the points C, the oblique ends 9 of the vanes being slightly out of contact with the bottom walls 15 of the grooves 13 in the screw. Screwdriver bits with two, three and five vanes and correspondingly socketed screws are also described. Specifications 427,892, and 427,893, [Group XXV], are referred to.
Patent GB-355870-A (GB)
Title: Improvements in and relating to appliances for measuring or recording movements and rate of movement of bodies
IPC: G01P3/38
Filed: 1930-06-23
Abstract: 355,870. Recording-apparatus. PAILIN, G. and PAILIN, Ltd., F., Buckley Street, Higher Openshaw, Manchester. June 23, 1930, No. 19065. [Class 106 (iv).] Photographic recorders.-In an appliance for recording the rapid movement of a body in which the periodicity of an A.C. electric supply is used as a timing standard, neon or like lamps are illuminated at each alternation when their striking voltage is reached, patches being then produced on a light sensitive film drawn by the body whose motion is required, the speed being calculated from the pitch distance of the patches, and the known time factor. When applied to recording the " breaking " of a switch-box a, Fig. 3, the latter is connected by a cord n, to the film-strip k, Fig. 1, stored on a sprung roll j. Neon lamps c, d, the former being in series with the switch a, b, normally illuminate the strip through apertures i and i<1>, and, when the bar a is retracted the film strip k is drawn past these apertures into the light-proof tube o. Patches q, Fig. 4, on the developed film, give the displacement of the bar a during each alteration, and patches p give the position of the bar a when the circuit breaks, from which the rate of breaking may be determined. The pitch distances may be read off on a scale previously printed on the film strip. If light sensitive paper is used instead of a film, the lamps c, d are positioned on the same side of the paper strip. A transformer e is provided to intensify the sharpness of the patches p, q. When used for other purposes only one lamp c need be used.
Patent GB-772962-A (GB)
Title: Deceleration and stop indicator for motor vehicles
IPC: G01P1/08
Filed: 1955-07-01
Abstract: 772,962. Road-traffic signals on vehicles. ROBBINS, J. F. July 1, 1955 [July 2, 1954], No. 19089/55. Class 118 (2). In order to give early warning to following vehicles of the deceleration and possible stopping of a motor vehicle a normally open switch 3 is provided associated with the accelerator pedal 4 which closes an energizing circuit to stoplights 1 when there is no foot pressure on the pedal. This circuit is from the battery 2 through meter 11 and ignition switch 6 to switch 3 so that the lights 1 are extinguished when the ignition is switched off. A second energization circuit for the stop-lights is led from meter 11 through normally open switch 22. This switch is closed when pressure is applied to the brake pedal 7 and is independent of the ignition switch 6. An indicator light 24 may be arranged in parallel with lights 1.
Patent GB-254888-A (GB)
Title: A process for the manufacture of artificial resins
IPC: C08G8/24
Filed: 1925-07-29
Abstract: 254,888. Regal, A. July 29, 1925. Phenol-aldehyde condensation products; indophenols and indamines. - Coloured synthetic resins are obtained by condensing phenols with formaldehyde in the presence of an indophenol or an indamine. The indophenol may be formed in situ, prior to the addition of formaldehyde, by causing a portion of the phenol to react with a small quantity of a p-disubstituted aromatic body, such as p-phenylenediamine, p-aminodimethylaniline, p-aminophenol, p-nitrosophenol, p-quinoneimide, or p-nitrosodimethylaniline, followed by a moderate oxidation if necessary. In one example, phenol is heated with a small quantity of p-aminodimethylaniline, oxidised with a little potassium permanganate, and then condensed with formaldehyde. The resulting resins are of a bluish or green colour, which can be destroyed by the addition of dilute mineral acids. In another example p-amidophenol or p-nitrosophenol are used to produce the indophenol, the oxidation being omitted in the case of p-nitrosophenol. ln a further example, small quantities of p-phenylenediamine and aniline are added to the phenol, the mixture being heated and oxidized with permanganate before adding the formaldehyde.
Patent GB-1324957-A (GB)
Title: Delta modulation
IPC: H03M3/02
Filed: 1971-06-07
Abstract: 1324957 Delta modulation TELEFONAKTIEBOLAGET L M ERICSSON 7 June 1971 [5 June 1970] 19295/71 Heading G4H [Also in Division H4] A circuit adapted to receive a delta modulated pulse train having a pulse period greater than a defined time and to produce a signal pulse train suitable to be integrated to a demodulated form of the input comprises a first circuit adapted to detect and register the polarity of each input pulse and to detect a polarity pattern formed by the pulse and one or more previous pulses and to use the pattern to obtain and register a digit value, a second circuit adapted to count through a cycle with the defined time, and a logic circuit having inputs from both circuits to open a gate for a fraction of the cycle in dependence of the digit value to pass signals of constant amplitude and of the presently registered polarity to form the signal pulse train. As shown, the first circuit, Fig. 2, receives a modulated pulse at I1 and is taken both to an exclusive OR gate EORI and an AND gate Al adapted to give outputs whenever both inputs are equal, the outputs of both gates being taken to an up/down counter K1 and that of EOR1 to the common input of a flip/flop FF1, one output U7 of which provides the second input of both gates and a second output U1 providing a constant amplitude signal of a polarity of the presently occurring input pulse at I1. Counter K1 which may count in the range 0-7 is stepped up by an output from A1 and down from EOR1 but does not reset upon reaching a max- or minimum value, its count enabling one of eight leads U2. The second circuit, Fig. 3, has input I2 for the modulated pulse train, and a fast clock source PG. An input pulse is taken via A2 to set a flip/flop FF2 to a "1" condition to enable a gate A4 to cause 4-bit counter K2 to count clock pulses. Upon filling, K2 is reset to zero and a pulse is emitted via A3 to reset FF2 to zero. The instantaneous count is displayed in binary fashion on leads U3. Outputs U2, U3 are taken to a matrix connection feeding 7 AND gates, Fig. 4 (not shown), such that a signal is emitted for a fraction of the counting cycle depending upon the count in K1. This signal gates the signal U1 to an integrating circuit to form a demodulated waveform. The circuit may be used as a demodulator in a telephone earpiece and a modulator when placed in a conventional feedback circuit in a telephone mouthpiece, the counter K2 being common to both, and callsignals may be derived from a keyboard and the counter K1 in response to a suitable calling signal from the exchange (see Division H4).
Patent GB-1308642-A (GB)
Title: Suction cleaner wet pick-up nozzles
IPC: A47L9/02
Filed: 1970-04-22
Abstract: 1308642 Floor drying apparatus HOOVER Ltd 22 April 1970 [28 April 1969] 19312/70 Addition to 1262357 Heading A4F [Also in Division E2] The wet pick up nozzle described and claimed in the parent specification is modified in that the elongated mounting member 34 has filter parts 40 therein, and an elongated filter in the form of a channel member 48, having notches 52 forming further filter openings, is releasably secured below the member 34. In another embodiment Fig. 6 (not shown) the elongated filter is in the form of a member having a lower vertical web portion having integral outwardly and upwardly diverging side walls formed by tabs alternately bent in opposite directions.
Patent GB-383922-A (GB)
Title: Tobacco pipe
IPC: A24F1/00
Filed: 1932-07-08
Abstract: 383,922. Tobacco pipes. WHEELOCK, E. R., Nictaux Falls, Nova Scotia, Canada, July 8, 1932, No. 19371. Convention date, July 10, 1931. [Class 130.] Plugged communicating passages 14, 15 run transversely to and parallel to the bowl 12. A tube 26 upstanding in the passage 15 is threaded into the partition between passage 14 and a lower passage 21 from which smoke reaches the mouthpiece 30 by a passage 20 which runs either at right-angles to passage 21 or is in alignment therewith. A tool, Fig. 6, comprises a scraper at one end for insertion in the passages, and at the other end a hook for engaging a perforated plate 29 which normally rests in the base of the bowl.
Patent GB-904699-A (GB)
Title: Improvements in or relating to the dehydrogenation of hydrocarbons
IPC: C07C5/333
Filed: 1960-06-01
Abstract: Isoprene and unsaturated C4 hydrocarbons are obtained by the dehydrogenation of a gaseous mixture of 10-60% branched chain C5 hydrocarbons, of which isopentane is in excess of each and any other individual C5 hydrocarbon, and 90-40% by weight of normal C4 hydrocarbons of which n-butane is in excess of each and any other individual C4 hydrocarbon, by passing through a bed of granular dehydrogenation catalyst at a space rate of 1-6 liquid volumes of hydrocarbon per catalyst volume per hour, a pressure less than 15 inches of mercury and a temperature of 1050-1200 DEG F. the severity being such as to convert at least 10% of the C5 hydrocarbons, in a cycle in which periods of dehydrogenation are alternated with periods of catalyst regeneration while maintaining adiabatic conditions in the dehydrogenation-regeneration cycle.  Isopentenes may be recycled after mixing with fresh isopentane and n-butane.
Patent GB-718322-A (GB)
Title: Novel thio ethers and esters and their salts and processes for producing the same
IPC: C07D239/38
Filed: 1952-07-31
Abstract: The invention comprises compounds of the formula <FORM:0718322/IV (b)/1> where Y is hydroxyl or amino, Z is hydrogen or sulphonic acid and R is one of the following groups: (1) alkyl, optionally substituted by hydroxyl (one or more), carboxyl (free or esterified), carboxylic amide, amino, dialkylamino, aryl, arylamino or aryloxy; the aryl group may in turn be substituted, e.g. by amino, hydroxyl, carboxyl or sulphonic acid; (2) as in (1) where the alkyl chain is interrupted by oxygen, -NH- or -N alkyl-; (3) acyl or aroyl, which may be substituted, e.g. by amino, hydroxyl, carboxyl or sulphonic acid; (4) carbamyl, alkylcarbamyl or dialkylcarbamyl; (5) pyrimidyl. These are made by treating thiols of the above formula (R = H) with suitable derivatives of R, with the following additional steps if necessary: sulphonating to introduce Z, reducing nitroaryl groups in R to aminoaryl groups, hydrolysing to carboxyl (or amide) any group in R so transformable (e.g. ester or nitrile), or converting into a salt.  Suitable compounds for introducing R are halides, sulphates, alkylsulphonates, arylsulphonates, or (R = acyl) halides or anhydrides.  In examples the following are prepared (by direct condensation of SH to SR unless otherwise stated) : 4-(n-butylthio) - resorcinol, 4 - isobutylthio - resorcinol, 4 - (21 - n - butoxyethyl - thio) - resorcinol, 4 - isoamylthio - resorcinol, 4 - (n - hexylthio)-resorcinol, 4 - benzylthio - resorcinol, 4 - benzoylthio - resorcinol, 4 - (p - nitrobenzoylthio)-resorcinol, 4 - (p - aminobenzoylthio) - resorcinol (reduction of nitro compound), 4-isobutylthio-resorcinol - 6 - sulphonic acid (sulphonation), 4 - (carbethoxymethyl - thio) - resorcinol, 4-(carboxymethyl - thio) - resorcinol (hydrolysis of carbethoxy compound and isolation via lead salt), 4 - (21 - hydroxyethoxy - ethylthio)-resorcinol, 4 - (21 - phenoxyethylthio) - resorcinol, 4 - (21 - phenoxyethoxy - ethylthio) - resorcinol, 4 - (41 : 61 - dimethylpyrimidyl - 21 - thio)-resorcinol, diethylthiocarbamic S - (2 : 4 - dihydroxyphenyl) - ester, 2 - (21 - phenoxyethoxy-ethylthio) - 5 - aminophenol, 4 - (41 - carbethoxyphenoxyethoxyethoxyethylthio) - resorcinol, hydrolysed to carboxy compound, 4-(21-diethyl-amino - ethylthio) - resorcinol and reineckate, 2 - (21 - diethylamino - ethylthio) - 5 - aminophenol and reineckate, 2 - (n - butylthio) - 5-aminophenol, 2 - (carbamido - methylthio) - 5-aminophenol, 4 - (carbamido - methyl - thio)-resorcinol.  Other specified products have as group R: o- and p-carboxyphenoxyethyl, dihydroxypropyl, p-hydroxyphenethyl and diethylamino - ethylamino - ethyl.  Specification 687,189 is referred to.  4-Mercapto-resorcinol is made by electrolysing a mixture of thiocyanic acid and resorcinol, and treating the resulting 4-thiocyano-resorcinol with sodium hydrogen sulphide.
Patent GB-640842-A (GB)
Title: Improvements in and relating to electron discharge valve circuits
IPC: H04N5/60
Filed: 1948-07-20
Abstract: 640,842. Valve circuits. COSSOR, Ltd., A. C., and COVILL, D. H. July 20, 1948, No. 19472. [Class 40 (v)] In a circuit for separating two signals of different frequencies, such as is used in television reception for separating the sound and vision signals, and which comprises a circuit 17, 18, 19, Fig. 1, tuned to one of the frequencies and connected in the cathode lead of a valve, oscillation is prevented by dividing the inductance into two series-connected parts 17, 18 which form with the control-grid to cathode and control-grid to screen capacities Cg1g2 and Cg1K respectively a balanced bridge network, Fig. 2 (not shown), preventing feedback to the input circuit 16. In an alternative arrangement, Fig. 3, which permits of one end of the input circuit being earthed, the inductance 18 is placed in the anode lead, the condenser 19 then being connected between screen and cathode.
Patent GB-300543-A (GB)
Title: Improvements in heat exchange apparatus
IPC: F28D7/16
Filed: 1928-07-05
Abstract: 300,543. Akt.-Ges. Brown, Boveri, et Cie. Nov. 14, 1927, [Convention date]. Straight tubes between headers. - In a heater or cooler, the tubes a lie with their longitudinal axes at an angle, a of less than 45‹ to the axis of the inlet and outlet tubes e, f for the other medium.
Patent GB-425811-A (GB)
Title: Improvements in grids for metal vapour or rare gas rectifiers
IPC: H01J17/04
Filed: 1934-07-03
Abstract: 425,811. Discharge apparatus. ENGLISH ELECTRIC CO., Ltd., 28, Kingsway, London. July 3, 1934, No. 19562. Convention date, July 3, 1933. [A Specification was laid open to inspection under Sect. 91 of the Acts, Jan. 28, 1935.] [Class 39 (i)] An arc rectifier, having a filling of metallic-vapour or rare gas, is provided with a grid which consists of a tube 12 lying along the discharge path and fitted, at its ends, with strips or rings 13, 14 which are parallel, and the edges of which are presented, to the discharge path. The distance between the members 13, 14 is greater than that between adjacent strips, and the grid is housed within the anode shield 11. The Specification describes various forms of the strips or rings, e.g. they may consist of hollow curved bodies, or of one or more rings, which are arranged concentrically or eccentrically with respect to the perforated or solid tube, and may be provided with connecting strips, or they may consist of strips radiating from a point which is eccentric with respect to the tube. The members are supported by the tube through quartz rods, one of which may be adjustable so that the shape of the members can be varied.
Patent GB-121464-A (GB)
Title: An Improved Tail-piece for Aeroplanes.
IPC: B64C9/00
Filed: 1918-11-27
Abstract: 121,464. Soc. des Moteurs Salmson, (SystÞme Canton UnnÚ). Dec. 11, 1917, [Convention date]. Cars and cabins; framework; steering and balancing. - The pivotal members for the elevators and rudder of an aeroplane are supported by a vertical tube welded to sockets which receive the rear ends of the fuselage longerons, the sockets being held in position by the fuselage stay-wires. Figs. 1 and 2 show the sockets b welded to a vertical tube a and held on the ends of the longerons d, e by the stay wires f, g. The tubular shaft j for the elevators is carried by bearings i supported by a crosstube h passing through and welded to the tube a. The rudder is pivoted on the tube a by means of pivots m, m<1>. Inclined tubular braces o, n and stay-wires p are arranged as s.hown in Fig. 5.
Patent GB-1494823-A (GB)
Title: Process for the production of 2-aryl-2h-benzotriazoles
IPC: C07D249/20
Filed: 1976-05-13
Abstract: 2-Aryl-2H-benzotriazoles of the formula I <IMAGE> are prepared by hydrogenating a suitable o-nitroazobenzene with hydrogen in the form of a mixture with an amine or ammonia in an amount of at least 0.1 mol per mol of o-nitroazobenzene, at 20 to 100 DEG C and 1 to 66 atmospheres, in the presence of a hydrogenation catalyst made with a noble metal from the Group VIII of the Periodic Table or an oxide thereof. The individual symbols are given in Claim 1. The compounds can be used as UV absorbers. The process is environmentally friendly and gives high yields.
Patent GB-814725-A (GB)
Title: Acoustic communication device
IPC: A61F11/14
Filed: 1955-07-08
Abstract: 814,725. Ear protectors. ROMER, H., [trading as ROMER, H., [Firm of]]. July 8, 1955 [July 19, 1954; Oct. 8, 1954; Nov. 19, 1954], No. 19784/55. Class 81 (2). A protective ear covering, primarily for use by motorcyclists, comprises a cover having means for the admission of sound and a frame by means of which it is supported in spaced relation to the ear. A body part 1 has a streamlined outer surface and is mounted on a frame 12 having a sponge rubber sealing member 16 which surrounds the ear 3. The shape of the device avoids eddies in the air flowing past it, which would cause noise, and an opening 4, towards the rear, allows sound to enter, after which it is directed towards the ear by plates 7, 10.
Patent GB-266213-A (GB)
Title: Improvements in or relating to cooking utensils
IPC: A47J27/06
Filed: 1926-08-11
Abstract: 266,213. Purser, J. E. Aug. 11, 1926. Stoppers seated by gravity.-A cooking- vessel is provided with a heavy cover h fitted with a valve i and resting on an indiarubber sealing ring g fitted in a groove f at the mouth of the vessel.
Patent GB-498857-A (GB)
Title: Improvements in and relating to light transmitting means
IPC: F21S4/00
Filed: 1937-07-16
Abstract: 498,857. Decorative lamps. FREI, JUN., J. July 16, 1937, No. 19794. Convention date, Aug. 6, 1936. [Class 75 (iv)] In a decorative lamp, an artificial candle comprises a rod r of transparent light-transmitting material having at one end a tip portion t of generally conical form with a concave lateral surface and made of light-transmitting material having a predetermined critical angle. The tip portion may be made of crown glass, it may be formed integrally with the rod, and its base diameter may be equal to or greater than that of the rod. The lateral surface of the tip is so curved that light rays transmitted by the rod in a direction parallel to its axis are totally reflected and produce a brilliantly illuminated reduced image I of the tip portion within itself. The formation of this image is described in detail in the Specification. The lower end of the rod r is preferably flat and it may be mounted in a flanged rubber bushing 14 in the removable cover 13 of a preferably opaque casing 10 containing a light source 12.