baber/WOPTO huggingface dataset:
Patent GB-315127-A (GB)
Title: Improvements in and relating to direction signalling devices for use on road vehicles
IPC: B60Q1/36
Filed: 1928-08-16
Abstract: 315,127. Heinrich, W. Aug. 16, 1928. No Patent granted (Sealing fee not paid). Road-traffic signals on vehicles.-In a signalling-deviee for use on road vehicles pivoted strips 8, 10 are shifted to right or left by a slidable bar 13 so as to represent arrow-heads moving in the proposed direction of turning. Fig. 2 shows the strips 8, 10 vertical for running ahead; Fig. 3 shows the strips 8, 10 turned about their pivots 9, 11 to form arrow-heads moving to the right. The bar 13 is actuated by the engine suction, by connecting to the suction conduit, by means of a valve and pipes 20, one or other of two cylinders 19 housing inter-connected pistons 21. Movement of the pistons 21 is transmitted through a link 18 to a shaft 17 and the central strip 10. Springs 24 restore the pistons to the inoperative position, a spring-pressed locking- plate 27 being provided. The strips 8, 10 are backed by a red transparent plate illuminated by electric lamps. Movement of the control valve for actuating the strips 8, 10 may be used to close a circuit for lighting one or other of two red lamps on the rear mudguards. Both red lamps are lighted to give a stop signal.
Patent GB-1043926-A (GB)
Title: Improvements in or relating to water circulating devices for dishwashing machines
Inventor: MADDOX CHARLES HOWARD MATTHEW
IPC: A47L15/06
Filed: 1964-06-08
Abstract: 1,043,926. Dishwashing machines. MADDOX, HILL Ltd. Sept. 7, 1965 [June 8, 1964], No. 23617/64. Heading A4F. Washing water is circulated over the dishes in the washing chamber of a dishwashing machine by a device comprising one or more impellers mounted or each mounted on a radial arm secured to a shaft rotated by a motor, the or each impeller also rotating about its axis. The machine illustrated is provided with an impeller 6 comprising a pair of coaxial inverted truncated cones secured together by helical ribs 7 and freely rotatable on a shaft 8. The latter is mounted in a slot in a radial arm 4 on a shaft 1 carried by a motor 10, so that when the shaft 1 rotates the impeller 6 moves radially outwards to be rotated about its own axis by engagement with a ring 9 secured to the washing chamber wall. The impeller 6 protrudes through an opening in a conical hood 11 which rotates with the shaft 1.
Patent GB-501187-A (GB)
Title: Method of applying seating surfaces of valves for internal combustion engines
IPC: F01L3/02
Filed: 1938-08-10
Abstract: 501,187. Valves. FAIRBROTHER, H. (Bayerische Motoren Werke Akt.-Ges.) Aug. 10, 1938, No. 23628. [Class 7 (vi)] [Also in Group XXII] The seating surface of a valve is provided with a welded layer of annealed material, such as that sold under the Registered Trade Mark " Stellite," by helically applying a number of superposed narrow layers 3a, 3b, 3c. Joints in the direction of flow of the gases are thus avoided.
Patent GB-783021-A (GB)
Title: Improvements in cyanine dyes, processes of preparing them and photographic emulsionscontaining them
IPC: C07D471/04
Filed: 1955-08-17
Abstract: Dyes of the general formul  <FORM:0783021/IV (b)/1> and <FORM:0783021/IV (b)/2> wherein R and R1 are alkyl or substituted alkyl groups, X is an acid radical, n is 0 or 1, d is 1 or 2, Z completes a benzothiazole or quinoline nucleus and Z1 and Q complete heterocyclic nuclei, are prepared by condensing a quaternary salt of the formula <FORM:0783021/IV (b)/3> with a compound of the formula <FORM:0783021/IV (b)/4> wherein R2 is an acyl group, R3 is an aryl group and X1 is an acid radical, or with a compound of the general formula <FORM:0783021/IV (b)/5> The nucleus completed by Z may contain chlorine, bromine, iodine, methoxy, ethoxy, methyl, ethyl or phenyl substituents. Substituted alkyl groups which R or R1 may represent are allyl, b -hydroxyethyl and benzyl.  Lists of nuclei which Z1 and Q may complete are given.  In the examples, Z1 completes a benzothiazole, benzoxazole, benzselenazole, naphthothiazole or thiazoline nucleus and Q completes a rhodanine nucleus. Specification 670,038 and U.S.A.  Specification 2,073,600 are referred to.ALSO:Compounds of the formula: <FORM:0783021/IV (a)/1> where Z completes a benzthiazole or quinoline nucleus (which may be substituted by halogen atoms, alkyl, alkoxy or phenyl groups) are prepared by condensing a compound of formula: <FORM:0783021/IV (a)/2> with acetic anhydride in the presence of a strong acid such as glacial acetic or phosphoric acid.  Preferably the hydrazine group is first acylated, and the crystallized product treated with fresh acetic anhydride and strong acid to effect ring closure.  The bases produced may be quaternized by heating them with a compound RX (R = alkyl, allyl, b -hydroxyethyl or benzyl and X is an anion) such as ethyl iodide, methyl iodide, diethyl sulphate and methyl paratoluenesulphonate.  The preparation of the following unquaternated compounds is described: 1 - methyl - s - triazolo [4,3 - a] quinoline, 1 - methyl - s - triazolo [3,4 - b] benzothiazole and 6 - methoxy - 1 - methyl - s-thiazolo [3,4 - b] benzothiazole.  The preparation of quaternary derivatives of the latter compounds is also described.  2 - Acetylhydrazinobenzothiazole is prepared by refluxing 2-hydrazinobenzothiazole with acetic anhydride.  Specification 670,038, [Group IV (c)], and U.S.A. Specification 2,073,600 are referred to.
Patent GB-767265-A (GB)
Title: Improvements relating to operating circuits for cathode ray tubes, especially in television receivers
Inventor: GARGINI ERIC JOHN
IPC: H04N3/18
Filed: 1952-05-03
Abstract: 767,265. Saw-tooth generating circuits; cathode-ray tube circuits. ELECTRIC & MUSICAL INDUSTRIES, Ltd. April 17, 1953 [May 3, 1952], No. 23763/55. Divided out of 767,263. Classes 40(6) and 40(7) Relates to cathode-ray tube circuits comprising a resonant magnetic timebase circuit including a scanning coil 1 shunted by a rectifier 11 and capacitor 16 and controlled by a driving valve 4 and a circuit for driving the E.H.T. for the tube from the flyback of the sweep waveform. In such a circuit ringing oscillations in the timebase circuit initiated during the flyback tend to persist during the initial portion of the forward stroke and according to the present invention such persisting oscillations are substantially cancelled by similar ringing oscillations of opposite phase coupled into the timebase circuit from the E.H.T. crcuit which is tuned to the frequency of said oscillations. As shown in Fig. 1, the E.H.T. circuit comprises a rectifier 18 and a coil 17 connected to the anode of valve 4 and adjustably coupled to a coil 3 connected between valve 4 and the scanning coil 1, the E.H.T. circuit being tuned to the frequency of the ringing oscillations by the leakage inductance of coil 17 and the stray capacity 22. The time-base amplitude is controlled by a variable resistor 15 connected across capacitor 16 in series with the focus control 14 and focus coil 12. In a modification, Fig. 2 (not shown), coils 3 and 17 are replaced by a single coil connected as an auto-transformer and the current waveform in coil 1 is linearized by connecting the lower end coil 1 and the cathode of rectifier 11 to separate tappings on the auto-transformer coil. The H.T. for valve 4 may be boosted in a known manner by connecting a further capacitor between the upper terminals of coil 1 and capacitor 16; alternatively the capacitor 16 and focus coil network may be connected as shown in Fig. 3 in which case capacitor 16 functions as a boost capacitor.
Patent GB-480957-A (GB)
Title: Improvements in or relating to winding means for mines
IPC: B66B17/16
Filed: 1936-08-31
Abstract: 480,957. Guided hoists ; tipping- apparatus. INTERNATIONAL COMBUSTION, Ltd., DAVIDSON, G. W., and HERBERT, S. L. Aug. 31, 1936, No. 23797. [Classes 78 (iii) and 78 (iv)] [Also in Group XXVIII] In cage winding equipment in mines, the cage is provided with means for tipping a tram therein at the pit mouth into a position to discharge its contents, the tram being secured to the cage. As shown, a tram 18 is secured to a deck 3 of the cage by plates 15 overlapping its wheels and by end stops, and the deck 3 is supported on rollers 4 in the cage. Lugs 5 depending from the deck 3 carry rollers 6 at either side of the deck, and the axis of each roller 6.carries a pair of links 7 supporting a shaft 8 working in horizontal slots in the side of the cage. When the cage reaches the surface, a roller 9 at each end of the shaft 8 enters jaws 11 in a slide block 12 in the pit shaft. Movement of this slide block to the left, Fig. 3, causes displacement of the deck 3 over the rollers 4 until the rollers 6 ride up fixed ramps 10, the deck 3 then tipping over to discharge the contents of the tram. The tipping movement is checked by engagement of a side 3a of the deck 3 with a counterpoised slide 19 which also restores the deck when the tram has emptied. The slide block 12 is connected by a link 13 to a crank driven by an electric motor controlled by limit switches in the pit shaft, and time delay apparatus determines the moment of return of the block 12 and deck 3. In a modified arrangement the lateral movement of a deck to empty the tram is effected by curved guides for engaging the rollers 9, and secured in the pit shaft at the discharge position. In another arrangement, a hand or power operated lever engages a roller 9 to displace the deck which is returned by a spring loaded cable. In the case of a double deck cage, the two trams may discharge into a common shoot, or separate shoots. The shoots may be pivotally supported, and adapted to be depressed by the cage decks against a spring or gravity bias in order to serve as shock-absorbers. The pit shafts are preferably enclosed at the discharge position, and dust extracting means connected to the enclosure. The automatic tipping mechanism is temporarily put out of action when men are being carried in the cage.
Patent GB-795359-A (GB)
Title: Protective arrangements for arc-welding systems
IPC: B23K9/10
Filed: 1955-08-19
Abstract: 795,359. Supply systems for welding arcs; protective arrangements. LICENTIA PATENTVERWALTUNGS-GES. Aug. 19, 1955 [Aug. 23, 1954], No. 23968/55. Class 38 (4). Relates to a protective arrangement for a welding system comprising a transformer having choking coils 5, 6 connected across its secondary winding so that when the electrode 10 is brought into contact with workpiece 11 the coil 5 is short-circuited and a heavy current passes through the elements 10, 11. This current energizes relays 13a, 13b through transformer 12 whereby, for normal operation, contactors 15a, 15b are energized to close contacts 16a, 16b and the arc can be struck by withdrawing the electrode from the workpiece. If the relays 13a, 13b or contactors 16a, 16b fail to open their contacts when the arc is extinguished, a condition may arise in which a dangerous voltage could be developed between the electrode and the work. To prevent this the contactors are provided with auxiliary contacts 17, 18 and 19, 20, the arrangement being such that, if the two contactors are not in the same position at any time, heavy current passes through fuse 22 and resistor 21 so that the fuse ruptures and the control circuit is interrupted. Each of the contacts 17-20 may be shunted by an additional contact as a further safeguard.
Patent GB-712282-A (GB)
Title: Improvements in image-intensifying tubes
IPC: H01J29/02
Filed: 1952-09-24
Abstract: 712,282. Image intensifiers. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Sept. 24, 1952 [Sept. 27, 1951], No. 23973/52. Class 39(1) In an image-intensifying tube in which an X-ray image is converted into an electron image by a double layer of luminescent and photo-electric materials, reflection of the luminescent light passed by the photo electric layer is reduced by coating the surfaces which reflect back to the photo-electric screen with a deposit of a metal which only reflects the light radiated by the X-ray screen to a small extent and has little or no affinity with calcium. Such a metal is copper when a blue-luminescent phosphor is used for the layer sensitive to X-rays, but silver and gold are also suitable. The tube surfaces may be given a satin finish before the metal is deposited by cathode evaporation in vacuo, the photo electric layer being screened whilst the metal carried on a wire helix is rendered incandescent.
Patent GB-1348412-A (GB)
Title: Electrical pulse sequence recognition circuit
Inventor: HANS-WOLFGANG STEINLEIN
IPC: H02J13/00
Filed: 1971-04-19
Abstract: 1348412 Pulse sequence recognition circuits SIEMENS AG 19 April 1971 [12 March 1970] 24117/71 Heading G4H A circuit for recognizing pulse trains of a predetermined sequence of marks and spaces includes first and second switch means, m +, m -, means arranged in response to a received pulse sequence to close the first and second switch means during each of a series of time intervals corresponding to marks and spaces respectively in the predetermined sequence, and circuit means including two bi-stable circuits and two switching transistors arranged to provide an output signal when the received sequence corresponds to the predetermined sequence. Pulses received, e.g. over a power distribution network via a transformer, energize a relay R to close a switch r and connect a D.C. supply to the recognition circuit. A start pulse causes a solenoid KM to engage a clutch A, S, for one revolution of a synchronous motor M. A mechanical arrangement driven via the clutch opens and closes switches m + and m - corresponding to marks and spaces respectively in a sequence corresponding to the pulse sequence to be recognized. When an m + contact is closed capacitor C1 is charged, the first bi-stable T4, T5 is switched out of its initial state so that T4 conducts, and transistor T1 is rendered non-conductive. The closure of an m + switch causes a signal to be applied to the base of T2 which turns on and holds the base of transistor T6 negative while T1 is off. If a pulse from the train to be recognized arrives during the closure of an m+ switch it passes to the base of T5 via D4 and R10 and T5 and hence T1 turns on. When the m+ switch subsequently opens T2 turns off but T6 remains non-conductive or its base is held negative by T1 and the second bi-stable T6, T7 remains in its initial state with T7 conducting. However if no pulse arrives during the closure of an m + switch, the subsequent opening of the switch turns T2 off, and since T1 has not been turned on, the base of T6 becomes positive so that T6 turns on and the second bi-stable changes state. The change of state blocks T3 which breaks the circuit of relay KR and no recognition pulse can be delivered. The second bi-stable also changes state if a pulse arrives during the closure of an m - switch. At the end of a cycle switch ml is closed and the bi-stables are returned to their initial states. Voltage fluctuations, e.g. due to contact bounce, are prevented from disturbing the circuit by a capacitor C2. A final pulse arriving in synchronism with the closure of one of the switches ma, me actuates relay KR in the appropriate direction.
Patent GB-1351637-A (GB)
Title: Adhesively -secured floor coverings
IPC: A47G27/04
Filed: 1971-04-19
Abstract: 1351637 Skirting for floor ventilation W BECKMANN and K-H KAPP 19 April 1971 [16 March 1970 22 April 1970 13 Feb 1971] 24226/71 Headings E1B and E1W A diffusion proof floor covering which may be plastics or plastics coated textile is adhesively secured on a floating floor finish over a mineral fibre insulation layer 15 on the concrete sub-floor 14. The insulation layer extends in a peripheral strip behind the skirting 1 which hooks on a backing strip 2. Apertures 16 in the hooking flanges on the back of the skirting have a different spacing frequency from corresponding apertures in the hooking flanges on the backing strip to permit free ventilation of the sub floor through apertures 13.
Patent GB-1335244-A (GB)
Title: Process for the recovery of mercury from the brine filter sludge obtained in the elec-rolysis of an alkali metal chloride by the amalgam process
IPC: C22B43/00
Filed: 1971-04-19
Abstract: 1335244 Recovery of mercury; electrolysis of brine BADISCHE ANILIN-& SODA-FABRIK A G 19 April 1971 [18 March 1970] 24286/71 Headings C7B and C7D A process for the recovery of mercury from the brine filter sludge obtained from a plant for the electrolysis of alkali metal chloride by the amalgam process, comprises dissolving the mercury contained in the brine filter sludge with a solution containing active chlorine, supporting the undissolved portion of the brine filter sludge and precipitating mercury from the resulting mercuric solution. Mercury-containing brine filter sludge is continuously fed from tank 1 to stirred tank 2. Aqueous sodium or potassium hypochlorite is fed to tank 3 from tank 4. The resulting slurry is fed to filter 7 where the sludge is separated and washed. The washed mercuryfree sludge is discharged at 9 and discarded. The filtrate containing mercuric chloride is passed, together with the washings, to tank 10 from which it passes to pure brine tank 12, whence it passes through line 13 back to the electrolytic cell. If the filtrate containing mercuric oxide contains impurities it is passed, together with excess alkali metal amalgam withdrawn from electrolytic celt 22 via line 23, pump 24 and line 25, from tank 10 through line 14 to packed column 15. Here, the mercuric chloride is reduced to metallic mercury by the alkali metal amalgam and the metallic mercury is absorbed by the amalgam. The mercury-free filtrate is discharged through line 16. The excess amalgam passes over a weir and through line 17 to decomposer 18 packed with graphite lumps where it is decomposed with water from line 26 to form the components aqueous alkali metal hydroxide, hydrogen and mercury. The aqueous hydroxide and hydrogen are discharged through line 27. The mercury is then removed from decomposer 18 and either passed directly to electrolytic cell 22 via lines 19 and 21, or if troublesome impurities are still present, it is passed through lines 19 and 19a into washing tower 20 for purification, from which it is passed through lines 21a and 21 to electrolytic cell 22. From the receiver (not shown) of the amalgam pump 24 the recovered mercury continuously flows off through line 30 in the form of alkali metal amalgam and is fed to the other electrolytic cells to meet mercury losses.
Patent GB-760697-A (GB)
Title: Improvements in fasteners for overlapping elements
IPC: A41F11/02
Filed: 1953-09-02
Abstract: 760,697. Releasable fastenings. O'CONNOR, D. Aug. 26, 1954 [Sept. 2, 1953], No. 24320/53. Class 44. A fastener comprises two opposed strips, one of which is flexible and made of polythene or other plastic material having similar physical characteristics, the flexible strip having a plurality of integral transversely extending identical ribs, each rib being of substantially bulbous cross-section, the other strip having a plurality of integral equidistantly spaced transverse parts which under suitable pressure mate with the interstices separating the ribs, provision being made to prevent displacement of one strip relatively to the other in the direction normal to the direction in which they are mated or pulled apart. The fastener is used for connecting overlapping members such as strap ends, mouths of bags, edges of napkins and the like. As shown in Fig. 1, the two strips 1, 2 are each fixed to one of the members 4 to be connected. Each of the strips 1, 2 is made of the plastic material and each has a plurality of the transverse ribs 1a, 2a, which are separated by channels having the same cross-sectional shape as the ribs so that the ribs of each strip, 1, 2 can engage the channels of the other strip. A tab 3 is provided on one of the members 4 to enable the strips 1, 2 to be pulled apart. The strip 1 is slightly narrower than the strip 2 and the channels of the member 2 have webs 5 at each end to prevent the strips being disengaged by lateral sliding. In an alternative construction marginal ribs may be formed on each side of the member 2. Lateral disengagement can also be prevented by making the ribs of curved or chevron shape; in which case the webs 5 are omitted. In another construction, Fig. 6, the ribbed strip 1 is replaced by a slotted strip 14, the slots 13 of which engage the ribs 2a of the ribbed strip 2.
Patent GB-1497959-A (GB)
Title: Process for the preparation of aminoanthraquinones for nitroanthraquinones
IPC: C09B1/00
Filed: 1976-06-11
Abstract: 1497959 Preparing aminoanthraquinones BAYER AG 11 June 1976 [14 June 1975] 24329/76 Heading C4P Aminoanthraquinones are prepared by reacting the corresponding α-nitroanthraquinone with ammonia in presence of an ammonium halide and a solvent at elevated temperature and in which the ammonium halide is completely or partially soluble in the solvent. Preferred nitroanthraquinones are 1-nitroanthraquinone, α,α<SP>1</SP>-dinitroanthraquinone, α-nitro-α<SP>1</SP>-acylaminoanthraquinone and α,α<SP>1</SP> - dinitro - α,α<SP>1</SP> - dihydroxyanthraquinone. When a dinitroanthraquinone is used the reaction may be stopped after one nitro group has been replaced by amino. Ammonium chloride or bromide is used at temperatures of 80-250‹ C. The reaction may take place using water as solvent under increased pressure or using one or more organic solvents, e.g. nitrobenzene or a solvent mixture of nitrobenzene, glycols, acid amides and/or sulpholane, under normal pressure. Comparative examples not using the ammonium halide are described.
Patent GB-517997-A (GB)
Title: Improvements in or relating to the treatment of soya beans
IPC: A23L11/30
Filed: 1938-08-19
Abstract: 517,997. Treating soya beans. PLEWS, W. J. Aug. 19 1938, No. 24474. Convention date, Nov. 27, 1937. [Class 58] To hull and to disembitter soya beans they are submitted to substantial steam pressure which is subsequently suddenly released. The moist soya beans, with or without extra water, may be heated in a rotating container until at least a part of the moisture is converted into steam the container then being suddenly opened: or the beans are heated in the container till part of the moisture is converted into steam, part or all of this steam being allowed to escape, steam under pressure then being forced into the container and the container being suddenly opened after an appropriate period of treatment which is about two or three minutes: as a third method the beans are placed in a closed container, such as that described in Specification 472.466, and steam superheated about 100' to 200‹F at a substantial pressure, e.g., in general between 50 and 3001bs. per sq. inch is introduced into the container the pressure being released after a period of treatment of from thirty-five seconds to five minutes. The beans thus treated are expanded, porous and easily friable between the fingers, and the hulls, which flake off during the treatment, are dry and brittle. The process may be applied to granulated soya beans or to beans that have previously been hulled or disembittered.