baber/WOPTO huggingface dataset:
Patent GB-581351-A (GB)
Title: Improvements in or relating to artists' paint boxes
IPC: B44D3/04
Filed: 1945-02-27
Abstract: 581,351. Paint boxes. BARTLE, R. E., and RILEY, F. Feb. 27, 1945. No. 4923. [Class 11] A box for holding artists' colours consists of a base A formed with recesses B to hold the various colours and a cover E rotatable relatively to the base A so that any selected colour can be presented beneath an opening D in the cover. The base is also provided with a colour mixing dish H into which a removable water container K may be inserted to lock the cover against rotation. A central knob C attached to the base and having colour indicators G may be provided.
Patent GB-608173-A (GB)
Title: Improvements in or relating to sieves or riddles
IPC: B07B1/48
Filed: 1946-02-16
Abstract: 608,173. Sieves. BAKER, Ltd., G., and BAKER, C. F. Feb. 16, 1946, No. 4935. [Class 117] A sheet metal wall 1 of cylindrical form (only partly shown) is provided with inwardly-projecting brackets 5 of wire, as shown, or of metal strip, which support the detachable mesh bottom 3. The edge of the mesh is enclosed in a sheet metal ring 4. The brackets 5 may be soldered, welded or riveted to the wall 1. According to the Provisional Specification the mesh bottom may be supported by rigid wires extending diametrically or crosswise across the wall.
Patent GB-668460-A (GB)
Title: Calling signal retransmission device for two-wire telephone line
IPC: H04Q1/442
Filed: 1948-04-15
Abstract: 668,460. Two-way transmission. COMPAGNIE INDUSTRIELLE DES TELEPHONES. April 15, 1948 [June 26, 1947], No. 5001/51. Divided out of 668,369. Class 40 (iv). In a two-way ringing repeater in which a thyratron lo in firing in response to a half-cycle of a ringing signal applied to its grid induces a signal in the outgoing line e1, e2, via a transformer tpo in its anode circuit, the thyratrons for both directions of transmission are quenched by a common auxiliary thyratron la which fires on the alternate half-cycle and induces a quenching potential in the plate circuits of the main valves. In Fig. Fig. 1 the anode circuits are transformer coupled and in another embodiment, Fig. 2 (not shown), the coupling is effected by condensers.
Patent GB-265788-A (GB)
Title: Improvements in money-boxes
IPC: A45C1/12
Filed: 1926-02-22
Abstract: 265,788. Soroko, L. Feb. 22, 1926. Fortune-telling apparatus.-A money box comprises a horizontal spindle H mounted inside the box and carrying a number of radial vanes A, one of which is struck when a coin is inserted through the coin slot, the vanes being rotated and carrying a pointer P over an external dial G divided into a number of radial parts each bearing a number, symbol or phrase, e.g. a phrase denoting fortune-telling &c.
Patent GB-306399-A (GB)
Title: Apparatus for the determination of voltage levels and related measurements in telecommunication systems
IPC: H03H7/24
Filed: 1929-02-15
Abstract: 306,399. Lignes Telegraphiques et Telephoniques. Feb. 18, 1928, [Convention date]. Potentiometers; calibrating instruments.-The " voltage level " in telegraph or telephone transmission systems is measured between limits V and v on a variable high impedance calibrated to read directly in these units, the lower fixed limit being high enough to give accurate readings for standardization purposes on an amplifying voltmeter connected in parallel with part of the impedance. In one arrangement, Fig. 3, two series-connected variable impedances X, Y are connected across the lines with a voltmeter V in parallel with the impedance, X. The impedances are graduated so that by the addition of their readings the " voltage level " for particular reference points can be read off, and the " energy level " may be calculated therefrom. Each impedance may have two scales so that positive and negative valves can be obtained. One impedance may be invariable, and this may be connected across the voltmeter with a variable impedance on both sides thereof. From the measurements of " voltage level " obtained, the transmission equivalent, attenuation and amplification factors of the line, may be deduced mathematically.
Patent GB-850033-A (GB)
Title: Improvements in the production of bulked yarns
Inventor: NOBLE PHILIP GORDON
IPC: D02G1/12
Filed: 1958-02-18
Abstract: 850,033. Crimping yarns. LAWSON & SONS Ltd., R. P. Feb. 17, 1959 [Feb. 18,. 1958], No. 5182/58. Class 120(3). In a method of bulking continuous filament yarn by compression in a heated tube to crimp permanently the individual filaments, a predetermined volume of yarn is fed into and withdrawn from the tube by pairs of rollers rotating at differential, synchronised speeds and the yarn, during its passage through the tube in a compressed state, is subjected to dielectric or high frequency heating. As shown in Fig. 1, the tube comprises a section A of non- metallic material having low electrical conductivity and power factor e.g. glass or polytetrafluorethylene, partially surrounded by electrodes of a dielectric heater D, and a metal tube A<SP>1</SP> which serves as both the pressure-creating section and a cooling tube and may be perforated to allow cold air to be drawn across the yarn mass: ends a of the tube are shaped to the contour of feed and withdrawal rollers B and C. A modification, Fig. 2, comprises heated, intermeshing crimping rollers B<SP>1</SP> and a tube b to which hot air is admitted through a tube b<SP>1</SP> in order to preheat the yarn and to assist its conveyance through the apparatus. The tube may be tapered towards the withdrawal end.
Patent GB-922948-A (GB)
Title: Improvements relating to garment waistbands and fastening fittings therefor
Inventor: CRUSE ADRIAN ROBERT
IPC: A44B13/00
Filed: 1960-02-13
Abstract: 922,948. Hook fasteners; waist bands. THOMAS WALKER Ltd. Feb. 13, 1961 [Feb. 13, 1960], No. 5216/60. Classes 43 and 141. A method of forming an assembly of a madeup garment and a hook fastener having an S- shape consists in passing one end of the waistband between the base 4 and intermediate limb 3 of the hook folding the waistband under the base and passing the turned-over end of the waistband between the intermediate limb and hook tongue 5 so that it overlies the other part of the waistband and is sewn thereto. The waistband may have a strip 8 of stiffening material extending over part of the width and passing between the base and intermediate limb. The intermediate limb may be stamped from a sheet metal blank and cranked at one end. The base 4b may have the form of an open rectangular framework and the open intermediate limb 3b and hook tongue 5b may lie within the contour of the base. The base may comprise a wire frame and the sheet metal hook tongue and intermediate limb are joined to the base by clenched-over lugs. The intermediate limb lies substantially in the plane of the base.
Patent GB-268104-A (GB)
Title: Improved process for the manufacture of lead nitrate
IPC: C01G21/18
Filed: 1926-02-24
Abstract: 268,104. Bentley, W. H., Catlow, B., and Blythe & Co., Ltd., W. Feb. 24, 1926. Lead nitrate is produced by a continuous process in which the film of oxide produced by exposing metallic lead to air is dissolved off by immersing the lead in a solution of lead nitrate, the process being repeated again and again, nitric acid being added to the solution to reconvert the basic lead nitrate formed into lead nitrate. The lead is preferably in granular form and is placed in a bucket which is alternately raised from and lowered into a tank containing lead nitrate. Specification 6464/84 is referred to.
Patent GB-215480-A (GB)
Title: Improved construction of electrical geyser or water heater
IPC: F24H1/10
Filed: 1923-02-23
Abstract: 215,480. Weekes, W. Feb. 23, 1923. Heating by electricity.-An electric liquid heater, which may be fitted to a hot water supply system, comprises concentric tubes 1, 19, the inner tube being shorter than the outer one, a heating element or elements 10 secured inside the inner tube, a valve 5 operated by a float 7 provided with a rod 8, a cap 15 having a hollow extension 17 fitted with a screwed stem 18, the cap forming an outlet and cover for the inner tube, a bottom cover 2 engaging the ends of the concentric tubes and fitted with lugs 3 for securing it to a wall and a top cover 21 also provided with securing lugs 24. The valve 5 may be operated by a rod fixed at one end and which expands when heated to open the valve.
Patent GB-1349210-A (GB)
Title: Digital/analog converters
IPC: H03M1/00
Filed: 1972-02-04
Abstract: 1349210 Digital/analogue converters INDUCTOSYN CORP 4 Feb 1972 [5 Feb 1971] 5359/72 Heading G4H A digital/analogue converter in which the digital input is in the form of a pulse train, includes two counters 11, 12 (Figs. 4a, 4b) which, in the absence of a digital input pulse, are cycled in synchronism by a clock source on lead 20, the first counter receiving an extra pulse for each digital input pulse under the control of generator means 7. The counter outputs are combined in logic circuitry to derive analogue output signals sine #, cos # which may be applied to a position transducer. In the embodiment described a reference counter having a capacity N/2 is used in addition to the counters 11, 12 which are extended by bi-stables 220, 221 respectively to form effective counters of capacity N/2 a number of input pulses n resulting in output signals sine #, cos 0 from the logic circuitry where 0 = (n/N) x 360. In operation with a signal on lead 5, representing one direction of movement, setting bi-stable 214, a bi-stable 207 is set and reset by alternate digital input pulses to alternately set bi-stables 210, 211 which when set prime AND gates 237, 238 respectively. After the first pulse AND gate 237 is enabled by the output of a gate 234 and with bi-stable 220 reset an exclusive OR gate 242 applies a pulse direct to counter 11 (i.e. is a pulse having an effective weight of two in the extended counter). After the second pulse AND gate 238 is not enabled since it is inhibited by the output of bi-stable 214 and bi-stable 221 is not set since bi-stable 211 is set so consequently no count is made in the second counter whilst a pulse is added to the first extended counter. Whilst the signal on lead 5 remains unchanged the alternating process of applying first two pulses to the first extended counter and one pulse to the second extended counter followed by one pulse to the first extended counter and then no pulse to the second extended counter is repeated. When the signal on lead 5 changes the process is reversed.
Patent GB-577800-A (GB)
Title: Improvements in frequency-controlled electric oscillators
IPC: H03L7/20
Filed: 1943-04-05
Abstract: 577,800. Automatic control systems for electrical oscillators. GENERAL ELECTRIC CO., Ltd., BLIGH, N. R., and FOOT, J. B. L. April 5, 1943, No. 5449. [Class 38 (iv)] Oscillation frequency.-In apparatus for generating electrical oscillations wherein the oscillation frequency is controlled by a valveoperated variable reactor in accordance with the D.C. output of a discriminator responsive to the difference between the frequency of the oscillator and any selected one of a number of oscillations of standard frequency, and in which the frequency of the oscillator is determined by the setting of a tuning dial, the discriminator-reactor control is thrown out of action when the tuning dial is moving between settings corresponding to different frequencies. As shown in Fig. 1 contacts 3 connected to the dial shaft, and arranged between the regions corresponding to different frequency settings, co-operate with a fixed contact 5 whereby the discriminator output is short-circuited. The switching device may be arranged to interrupt the circuit between discriminator and reactor valve. Fig. 2 shows a wholly electrical method in which the anode circuit 7 of the reactor valve includes a relay 11, which may be connected in bridge form over a bridge as shown ; the relay 11 short-circuits the discriminator output to the grid circuit 13 of the valve when the anode current exceeds normal limits as the tuning dial passes from. one setting to another. The Provisional Specification also refers to an arcuate element in which the reactor motor is driven from the discriminator output.
Patent GB-680469-A (GB)
Title: Sealed shipping container
IPC: B65D8/00
Filed: 1950-03-04
Abstract: 680,469. Casks. McCONNELL, R. S. March 4. 1950 [Feb. 16, 1950], No. 5484/50. Class 21 A collapsable cask comprises two half shells 11. 12 composed of staves joined by metal bands, 13, 14, having hinge connections 17, 18 with removable pintles, heads 21 being secured in the shells by clips 29, 29a and pins 33, the pintles and pins being sealed against tampering. In one embodiment the heads carry angle iron rings 25 for engagement by the clips and seat on portions 26 attached to the staves. A common pintle 28 joins the hinge members 17, 18 of each longitudinal joint and its ends are covered by the clips 29. A sealing wire 35 passes through all pins 33. Alternatively individual sealed wires may pass through each pin and a lug struck out from each clip. The clips 29 may be dispersed with and an individual sealed pintle provided for each pair of hinged members. The ends of common pintles may be screwed to receive plates overlying the stave ends and head rings and sealed by a wire passing through pins joining the head rings and staves. The heads may be secured by pins passing through the staves and through a peripheral rectangular section ring secured to each head in lieu of the angle iron ring 25.
Patent GB-811406-A (GB)
Title: Additives for gasoline fuels for internal combustion engines
IPC: C10L1/18
Filed: 1957-02-19
Abstract: A gasoline composition contains a monohydroxy derivative of a heterocyclic compound having one or two oxygen atoms cyclically combined with carbon atoms.  The heterocyclic compound may be ethylene oxide, trimethylene oxide, 1,3-dioxolan, 1,4-dioxane, 1,3-dioxane, furane, tetrahydrofurane or pentamethylene oxide. Suitable derivatives are 4-hydroxymethyl - 1,3 - dioxolan, 2 - methyl - 4 - hydroxymethyl - 1,3 - dioxolan, 2,2 - dimethyl - 4 - hydroxymethyl - 1,3 - dioxolan, 2 - methyl - 2-ethyl - 4 - hydroxymethyl - 1,3 - dioxolan, 4-hydroxyethyl - 1,3 - dioxolan, 2 - methyl - 4-hydroxyethyl - 1,3 - dioxolan, 2,2 - dimethyl-4 - hydroxyethyl - 1,3 - dioxolan, 2 - methyl - 2-ethyl - 4 - hydroxyethyl - 1,3 - dioxolan, 5 - hydroxy - 2 - methyl - 1,3 - dioxane, 5 - hydroxymethyl - 5 - ethyl - 1,3 - dioxane, 3 - ethyl - 3-methylol-trimethylene oxide, and glycide.  The compositions contain 0.01 to 2 per cent by weight of the derivative.  They may also contain a polyglycol ether.  In examples gasoline compositions contain 2,2-dimethyl-4-hydroxyethyl-1,3-dioxolan and diethylene glycol monomethyl ether.
Patent GB-412695-A (GB)
Title: Improvements in or relating to piston packing rings
IPC: F16J9/16
Filed: 1933-02-23
Abstract: 412,695. Piston-rings. STANDARD PISTON RING & ENGINEERING CO., Ltd., NEAL, F., and PEACOCK, G. M., Premier Works, Don Road, Sheffield. Feb. 23, 1933, No. 5564. [Class 122 (i).] A compound piston-ring comprises two split rings a and b of L-section, that fit together so that the circumferential joint opens along the axial faces, a lug or like projection k being provided on one or both rings to engage a slot j in the other ring to prevent relative rotation ; the lug k preferably being arranged to cover the split in the other ring.
Patent GB-1086369-A (GB)
Title: Edge trimmer for trimming lawns
IPC: A01G3/06
Filed: 1966-02-09
Abstract: 1,086,369. Edge trimmers. ZINCK'S FABRIKER A.S. Feb. 9, 1966 [Feb. 11, 1965], No. 5614/66. Headings A1B and A1F. A lawn edge trimmer comprises a cutter 1 which is twice angularly deflected to form a transverse cutter part 2 from which horizontal wings 3, 4 project in opposite directions, the parts 2 and 3 serving to guide the implement and the wing 4 having a cutting edge 6 to sever the roots of the turf, the part 2 also,being provided with a cutting edge 5. The wing 3 is bent upwardly as at 8 and may also have a cutting edge 7.
Patent GB-979134-A (GB)
Title: Improvements in or relating to the manufacture of phenols and alpha-alkyl styrenes
Inventor: HILL DENNIS STANLEY
IPC: C07C37/52
Filed: 1961-02-15
Abstract: Phenols are obtained by splitting a cumylphenol compound of formula <FORM:0979134/C1/1> wherein Ar1 and Ar11 are aromatic hydrocarbon ring systems optionally substituted by C1- 3- alkyl groups and R1-R5 are H or CH3, in presence of an aluminium phenate as catalyst. The cumylphenol compound may be present in distillation residues obtained in the production of phenol and ketone from a cumene hydroperoxide compound.  The process is preferably applied to the production of phenol from p-cumylphenol, but m and p-cresol, resorcinol and betanaphthol are also mentioned.ALSO:Alpha-alkylstyrenes are obtained by splitting a cumylphenol compound of formula <FORM:0979134/C4-C5/1> wherein Ar1 and Ar11 are aromatic hydrocarbon ring systems optionally substituted by C1-3-alkyl groups and R1-R5 are H or CH3, in presence of an aluminium phenate as catalyst. The cumylphenol compound may be present in distillation residues obtained in the production of phenol and ketone from a cumene hydroperoxide compound.  The process is preferably applied to the production of alpha-methylstyrene from p-cumylphenol, but the production of alpha, meta-dimethylstyrene, alpha, para - dimethylstyrene, 2 - isopropenyl-naphthalene and isobutenyl benzene is inferred.
Patent GB-588789-A (GB)
Title: Improvements in or relating to curtain suspension devices
IPC: A47H1/104
Filed: 1945-03-07
Abstract: 588,789. Pelmets. JEFFAY, L. S. March 7, 1945, No. 5654. [Class 52 (v)] An adjustable pelmet of the kind comprising three parts all of inverted L shape in which the lower end of the vertical limb of the central part 12 is formed with an open topped groove to receive and slidably support the vertical limbs 13 of the end parts and the rear edge of the horizontal limb of the central part 12 is bent downwardly and inwardly to form a bearing ledge for the turned down vertical edge 15 of the horizontal limbs 14 of the end parts. The rails are fixed at two points on the underside of each end part and are slidably supported in overlapping arrangement at a further point from the central part.
Patent GB-325117-A (GB)
Title: An improved dart board
IPC: F41J3/00
Filed: 1929-02-21
Abstract: 325,117. Nash, C. Feb. 21, 1929. Dart-boards. -In a dart-board in which the different divisions of the target are formed by wires secured to the board, some of the wires are sunk into the board so as to lie flush with the face. As shown, the concentric wires 2 are sunk into the board, and the radial wires are laid over the concentric wires. The board may be produced from a composition of cork compressed with a dressing of glue size.
Patent GB-1084826-A (GB)
Title: Frequency-sensitive electronic device
IPC: H03K3/351
Filed: 1966-02-11
Abstract: 1,084,826. Transistor oscillator circuits. ETABLISSEMENTS MERLIN & GERIN SOC. ANON Feb. 11, 1966 [Feb. 23, 1965], No. 6051/66. Heading H3T. A frequency sensitive device comprises two oscillators each having a pair of unijunction transistors Q1, Q2; Q<SP>1</SP>1, Q<SP>1</SP>2, the first circuit Q1, Q2 providing an output at B only when the frequency of input pulses at A exceeds a predetermined value whilst the second circuit Q<SP>1</SP>1, Q<SP>1</SP>2 provides an output at B<SP>1</SP> only when the frequency of pulses at A is less than a lower predetermined frequency. The arrangements may be applied to controlling the frequency of an alternator, the pulses at A being synchronized to its output. Resistors R3, R4, R5 arrange that unijunction transistor Q2 tends to break down at a lower voltage of the charging capacitor C1 than transistor Q1 so that Q2 would tend to oscillate unless higher frequency pulses at A have previously triggered Q1 The frequencies of the two circuits are adjusted by resistors R6, R<SP>1</SP>6 so that pulses from Q 1 appear at B only if the input frequency at A is above 51 c/s. whilst pulses appear at B<SP>1</SP> from Q<SP>1</SP>2 only if the frequency falls below 49 c/s. Resistors R1 . . . R5 provide temperature compensation.
Patent GB-168081-A (GB)
Title: Cycle lamp bracket showing both head and rear lights
IPC: B60Q1/04
Filed: 1920-08-03
Abstract: 168,081. Thomlinson, G. Aug. 3, 1920. Vehicle lamp supports.-In a lamp bracket for cycles in which a telescopic member is attached to the handle-bar and carries a lamp support in such a position that the lamp is visible from in front and behind, means are provided whereby the lamp may be rotated in horizontal and vertical planes. The member C carrying the lampholder A slides in clips I attached to the handlebar and is held in the extended or closed position by a spring tongue K engaging grooves L on the rod C. For permitting angular adjustment of the lamp in an horizontal plane, the stem B of the lamp-holder is rotatably mounted on the rod C and is secured in the adjusted position by a ratchet washer E engaging, under the influence of a spring F and nut G, a similar ratchet washer D on the rod C. Angular adjustment of the lamp in a vertical plane is effected by rotation of the rod C in the clips I, security in the adjusted position being obtained by a second ratchet washer arrangement at N.
Patent GB-154112-A (GB)
Title: Process for the manufacture of colloidally soluble metal pyrophosphate casein compounds
IPC: C07K14/78
Filed: 1920-02-28
Abstract: Metallic pyrophosphate casein compounds, which are of use in therapeutics, are prepared by dissolving casein in alkali pyrophosphate solution and adding a metallic salt, such as calcium chloride or ferric chloride.
Patent GB-935165-A (GB)
Title: New thiolsulphonic acid esters
IPC: C07C381/04
Filed: 1962-02-16
Abstract: The invention comprises aromatic thiolsulphonic acid-dichloro-monofluoro-methyl esters of the general formula ArSO2SCFCl2 wherein Ar stands for a phenyl or naphthyl radical substituted by halogen atoms or by alkyl, nitro, carboxyl, acylamino or alkoxy radicals.  The novel compounds may be made by reacting an aromatic sulphinic acid with a fluorodichloro-methane sulphenic acid halide in an aqueous solution or in an organic solvent, the sulphinic acid being used in the form of a salt or in the form of the free acid when used in the presence of an acid-binding agent.  Sulphinic acids mentioned are benzene-p-toluene, p-chlorobenzene, m-carboxy-benzene-, p-acetamino-benzene-, 4-methoxy-3-nitrobenzene-, 4-nitrobenzene- and naphthalene-sulphinic acids.  Detailed examples are given. Specifications 752,255 and 781,227 are referred to.ALSO:Fungicidal compositions comprise an aromatic thiolsulphonic acid-dichloro-monofluoro-methyl ester of the general formula ArSO2SCFCl2, wherein Ar stands for a phenyl or naphthyl radical substituted by halogen atoms or by alkyl, nitro, carboxyl, acylamino or alkoxy radicals, together with a solid or liquid extender or carrier.  Detailed examples illustrate the use of aqueous solutions of esters of the above formula in which Ar is phenyl, p-chlorophenyl-, p-methylphenyl, p-acetamidophenyl, 3-nitro-4-chloro - phenyl-, 2 - methyl - 5 - nitrophenyl-, and 2,5-dichlorophenyl, and the use of the first three mentioned above mixed with talc. Specifications 752,255 and 781,227 are referred to.
Patent GB-1012655-A (GB)
Title: Chlorofluoromethyl mercaptans
Filed: 1964-02-13
Abstract: The invention relates to compounds of the formula HS-C-(F)(Cl)X, in which X is fluorine or chlorine.  These compounds are obtained by reacting thiosulphonates of the formula Ar-SO2-S-C(F)(Cl)X, in which Ar is an aryl radical and X is fluorine or chlorine, with dry hydrogen chloride at 150-250 DEG  C. in the presence or absence of a solvent.  An example describes the preparation of fluorodichloromethyl mercaptan from benzene sulphonic acid thiofluorodichloromethyl ester. Di-fluorochloromethyl mercaptan is similarly obtainable. Specifications 935,165 and 953,688 are referred to.