baber/WOPTO huggingface dataset:
Patent GB-377489-A (GB)
Title: Improvements in alarm devices for use in connection with telephone systems
IPC: H04M11/04
Filed: 1931-09-14
Abstract: 377,489. Police alarm systems. HUEMER, L., 12, Keifernstrasse, Dusseldorf, Germany. Sept. 14, 1931, No. 25787. [Class 40 (i).] A telephone substation is provided with apparatus by which, in the event of an alarm, the receiver is lifted and the impulse dial is operated automatically to call a police station, while a gramophone is started to transmit a message thereto. When an alarm occurs, a magnet 8 energizes and by means of a lever 6 releases a gear wheel 3 which rotates under control of a spring 4 and drives the shaft 1. Alternatively, the gear wheel 3 may be driven by a motor the circuit of which is closed by the magnet 8. The switch-hook 19 is raised by means of a lever 15 carrying a roller 17 which is lifted from a notch in a disc 13 upon the rotation of the shaft 1. A disc 23 toothed at a part of its periphery rotates through a single revolution a disc 28 which is provided with projecting studs 29 for engaging a toothed wheel 12 fixed to the shaft of the impulse dial 20, in order to effect the setting movements in accordance with the number to be transmitted. The shaft 1 also drives a gramophone turntable 34, the sound being brought to the vicinity of the microphone by means of a flexible tube 47. Wipers 40, 41, 42 co-operate with a contact disc 38 having segments arranged so that the circuit of the magnet 8 is maintained independently of the alarm contact for a complete revolution of the shaft 1, while a buzzer 46 is sounded intermittently.
Patent GB-745476-A (GB)
Title: Improvements in or relating to nuts and methods of manufacturing the same
IPC: F16B39/36
Filed: 1953-09-18
Abstract: 745,476. Locking-nuts. HINGLEY, R. T. Sept. 16, 1954 [Sept. 18, 1953], No. 25792/53. Class 89 (1). [Also in Group XXII] A lock-nut comprises an inner split conical part 7, Fig. 3, which is held against rotation in an outer hexagonal part 1, Fig. 4, by engaging hexagonal portions 6, 9. The outer part has a conical seat 2, Fig. 5, and has a thin wall 5 which is turned over to hold the inner part 7 in position.
Patent GB-1518993-A (GB)
Title: Pressurized ink applicator for intaglio printing press
IPC: B41J2/01
Filed: 1975-06-17
Abstract: 1518993 Inking AMERICAN BANK NOTE CO 17 June 1975 [17 June 1974] 25814/75 Heading B6C An intaglio printing press has an ink applicator with a reservoir in which ink is kept at constant pressure, a conduit joining the reservoir to a nozzle which is supported in sealing contact with the plate, e.g. blades 1 form the seal. The plate and nozzle may bemoved relatively while maintaining the seal and thenozzle is adjustable to achieve the desired wiping of ink from the surfaces of the plate. The applicator has a shearing element 86 comprising a perforated sheet and a heating element 4 near the nozzle for altering the flow characteristics of the ink stored in containers 59. The ink is forced under pressure through apertures 53, 64, 66, 68, 70 and accumulating chambers 65, 72, 73 then between the blades 1. A cam 16 on the printing cylinder moves a sliding valve 7 to allow ink flow only when the blades 1 contact the plate and in accordance with image density on the plate. The ink may be supplied from tube 136 or air pressure may apply the ink from a disposable tube 10. Further heating elements 74 may be provided. The applicator is pivotable about pin 61 for cleaning.
Patent GB-1368585-A (GB)
Title: Device for the digital subtraction of frequencies
IPC: H03B21/00
Filed: 1973-05-31
Abstract: 1368585 Pulse frequency subtractors PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 31 May 1973 [3 June 1972] 25904/73 Headings H3F and H3P [Also in Division G5]  A pulse frequency subtractor of the type in which the lower frequency blocks for a time the transmission of the higher frequency, is modified so that the lower frequency first delays an output pulse by less than a period and then removes the delay and masks an output pulse. The one period gap which would otherwise occur in the output pulse train is divided into a number of gaps each separated by at least one output pulse and the output signal is thus more suitable for harmonic generation and rectroactive phase control. In Fig. 6 the onset of the lower frequency signal 2 introduces a half period delay in the output train 3 and the end of the lower frequency signal removes the delay and masks the coincident higher frequency pulse so that two half period gaps occur. The delay may be effected by a delay line, by inversion of the pulses or by a counter. In Fig. 5 the input pulses 1 and 2 of Fig. 6 are applied respectively at A and B from whence they pass via differentiators DA, DB, to a counter exemplified by a bi-stable circuit COU. The bi-stable circuit is switched by each leading and trailing edge of the higher frequency pulse until the onset of the lower frequency pulse. This causes one higher frequency edge to be ineffective so that the output train changes in phase by 180 degrees. The trailing edge of the lower frequency pulse restores the original phase relation between input and output pulses and masks an output pulse by maintaining the up level. The output from the bi-stable circuit triggers a monostable circuit to reshape the pulses and form the second gap into a zero level. In Fig. 3 (not shown) the same effect is produced by a combination of bi-stable circuits, gates and inverters. In Fig. 7, not shown, the higher frequency pulses are fed alternatively through delayed and undelayed paths to the output, switching between the paths being controlled by bi-stable and gating circuits. The two gaps may be converted to four by doubling the frequency before application to the subtractor and frequency halving the output. In an electronic organ, a master frequency f can be converted into ¥f by applying f and f to the subtractor. The subtractor may also be used to provide a reference signal in an automatic phase controlling system.
Patent GB-481861-A (GB)
Title: Improvements in or relating to the continuous production of rubber thread
IPC: B29D99/00
Filed: 1937-09-24
Abstract: 481,861. Indiarubber thread. McKAY, R. F. (International Latex Processes, Ltd.) Sept. 24, 1937, No. 25907. [Class 70] Indiarubber thread consisting of three or more latex filaments united in non-planar formation, as shown in Fig. 4 in the case of three filaments, is made by associating a number of latex filaments while still in a tacky condition and uniting them into a single thread by subjecting them to a transverse rolling operation, for example, between reciprocating rubaprons. The filaments may be continuously produced by extruding latex from several small closely-positioned apertures, which lie in one plane, into a bath of coagulant.
Patent GB-1499295-A (GB)
Title: Check valve
IPC: F16K15/03
Filed: 1976-06-22
Abstract: 1499295 Valves TRW Inc 22 June 1976 [25 Aug 1975] 25947/76 Heading F2V A check valve comprises a stationary shaft 7 extending diametrically across a fluid conduit and rigidly supporting two valve members 2, 3, each member 2, 3 being urged towards a valve seat by a respective spring 22, 21 comprising a helical portion including the shaft 7 and end portions which respectively engage the associated valve member and a second shaft 6 parallel to the shaft 7 and forming step means. The torque produced by the two springs may be different.
Patent GB-407397-A (GB)
Title: Improvements in and relating to shaft packings suitable for steam turbines
IPC: F16J15/40
Filed: 1932-09-19
Abstract: 407,397. Stuffing-box substitutes. PARSONS MARINE STEAM TURBINE CO., Ltd., COOK, S. S., and DOUGLAS, L. M., Wallsend-on-Tyne. Sept. 19, 1932, No. 26049. [Class 122 (v).] In a shaft-packing arrangement particularly suitable for steam turbines, leakage steam from the high pressure turbine a is led over gland pockets a<5>, a<4> separated by labyrinth packing a<2> and thence by pipes a<6>, a<7> to a reservoir e. To adjust the pressure in the reservoir e and thus correct lockage flow to the glands, live steam may be conducted to the re ;ervoir by way of the pipe f, which is connected with a leak-off pipe c by the control valve h. Steam from the reservoir may be led to he low-pressure turbine b over a similar arrangement of pipes and glands on the turbine shaft. Various modifications are described, in the case of a ship-installation each starboard and port pairs of turbines has its own reservoir which are controlled by a common supply and leak-off pipe. In other arrangements, the outer and inner high-pressure gland pockets are directly connected to the outer and inner lowpressure gland pockets, these pipes being also intermediately connected to the steam reservoir. This connection may take the form of a large collector pipe which represents a considerable part of the capacity of the reservoir.
Patent GB-260550-A (GB)
IPC: C08F14/06
Abstract: 260,550. Dyk, L. A. van, (Assignee of Ostromislensky, I.). July 26, 1926. Polymerized vinyl chloride. - A polymer of vinyl chloride which, as described in Specification 255,837, is soluble in chlorbenzene but insoluble in acetone is prepared by effecting the polymerization in two stages, the first stage comprising the production of an acetone-soluble polymer, which is isolated and, in the second stage, is further polymerized by prolonged subjection to ultra-violet light and/or heat. The first polymerization may be effected by sunlight, and catalysts, such as soluble lead salts, may be added; also, the vinyl chloride mav be dissolved in an organic solvent. According to an example, liquid vinyl chloride in a closed container, such as a quartz tube, is treated with ultra-violet light until the acetone-soluble polymer is formed. The product is freed from unchanged vinyl chloride by distillation and is then further purified by solution in acetone; liquids such as chlorbenzene may be added prior to distillation to prevent the formation of insoluble polymers. The solution in acetone is evaporated and the polymer converted into the desired acetone-insoluble form by prolonged exposure to ultra-violet light or by prolonged heating, for example at 30-130‹ C. The product is treated in turn with acetone and with chlorbenzene and may be formed into films as described in Specification 255,837.
Patent GB-1347098-A (GB)
Title: Threephase generating system
IPC: H02J7/14
Filed: 1971-04-19
Abstract: 1347098 Vehicle supply systems NIPPONDENSO KK 19 April 1971 [3 April 1970 9 April 1970 (3) 21 April 1970] 26078/71 Heading H2H A system comprising a three phase starconnected generator which is drivable at greatly varying speeds and a rectifier device is provided with means whereby the rectifier device is switched from operation in a full wave mode to operation in a half wave mode in dependence on the generator speed and/or generator output current, the star point of the alternator windings being permanently connected to one of the D.C. output terminals by a diode. A battery 5 is charged and the electrical loads 6 of a motor vehicle supplied by a star connected three phase alternator 1 by way of a rectifier device 2, the alternator being driven by the engine of the vehicle. A regulator 4 is provided to govern the field winding 1e of the alternator thereby to control its output and a further control device 9 is provided which controls the operation of a relay 7. When the engine speed, and hence the alternator speed, is low, the relay 7 is unenergized, the contact 7c thus making on contact 7a. In this instance the rectifier device 2 operates in a full wave manner whereupon the system develops an output current as is shown in curve a in Fig. 2. At the same time the voltage at the star point 1d is subjected to half wave rectification by the diode 8 so as to produce a current which is added to that obtained by the rectifier 2 to give the current curve b in Fig. 2. As the alternator speed is increased a point is reached at which the regulator 9 causes energization of the relay 7 to move the contact 7c to fixed contact 7b. In this position the D.C. supply line 11  is connected directly to the star point 1d of the alternator 1 whereupon the rectifier elements 2d, 2e, 2f are rendered inoperative and the rectifier device 2 operates in a half wave mode, the output current having a characteristic shown by the curve c in Fig. 2. The regulator 9 may be arranged to be responsive to the alternator speed and/or the alternator output current and the diode 8 is also effective to reduce arcing at the contacts 7a, 7b, 7c. The contact 7b may be dispensed with if the diode 8 has a large current capacity. If desired a diode 12, of opposite polarity to the diode 8, may be introduced so that fluctuations in the voltage at the star point 1d are full wave rectified such that the current curve d in Fig. 2 is obtained. Other embodiments are described in which certain of the elements of the rectifier bridge 2 are controlled rectifier elements and in which the full wave to half wave switching relay may be placed in the A.C. side of the bridge rectifier 2.
Patent GB-923341-A (GB)
Title: Process for the manufacture of alkyl esters of ªâ-alkoxy-carboxylic acids
IPC: B01J27/06
Filed: 1959-07-29
Abstract: The following mixtures are used as catalysts in the preparation of alkyl esters of b -alkoxycarboxylic acids from ketenes and acetals (see Group IV(b)): monofluoro-phosphoric acid (H2 PO3 F) with BF3; difluorophosphoric acid (HPO2F2) with BF3; TiF4 with n-butyl acetate; TiF4 with n-hexyl acetate; TiF4 with 2-ethylbutyl acetate; TiF4 with n-octyl acetate; TiF4 with 2-ethylhexyl acetate; and of H3BO2F2 with BF3 obtained by reacting boric acid anhydride with HF in petroleum ether.ALSO:Alkyl esters of b -alkoxycarboxylic acids are prepared by reacting ketenes with acetals which are not substituted by alkoxy groups at a temperature in the range -50 DEG C. to +150 DEG C., in the presence of a fluoride of an element of Group 4 or 5, the element being in its highest valency state, or of a complex fluoric acid of an element of Group 3-5 or of a mixture of such substances with BF3 at a catalyst concentration of 0.1 to 10% by weight, calculated on the total weight of the reactants, and isolating the b -alkoxycarboxylic alkyl ester from the neutralised reaction mixture by distillation.  Specified ketenes include ketene itself and aldoketenes R-CH=C=O, where R is alkyl.  Suitable acetals include those of formula <FORM:0923341/IV(a)/1> where R1 is hydrogen or alkyl, R2 is hydrogen and R3 is alkyl.  The process may be operated batchwise or continuously.  Neutralisation may be effected with a Group 1-3 metal alcoholate.  Pressures from subatmospheric up to about 5 atmos. (gauge) may be used.  Examples describe the preparation of methyl b -methoxypropionate, n-butyl b -n-butoxy-propioniate, n-hexyl b -n-hexyloxypropionate, 2-ethyl-butyl b -(2-ethylbutoxy) propionate, n-octyl b -n-octyloxypropionate, 2-ethylhexyl b -(2-ethylhexyloxy) propionate, methyl b -methoxyisobutyrate, methyl a -ethyl-b -methoxy-propionate and methyl a -isopropyl-b -methoxypropionate; the last two esters are hydrolysed to the corresponding acids.
Patent GB-208790-A (GB)
Title: Improvements in or relating to spanners
IPC: B25B13/12
Filed: 1922-09-27
Abstract: 208,790. Mansell, W. H. Sept. 27, 1922. Rigid and sliding jaw wrenches; jaw faces.- A wrench with parallel fixed jaws 2, 3 is pro- - vided, with two additional jaws each of which is stepped at 7, 9 and 8, 10, the two jaws being secured to, or formed in one piece with, a member 6 which is slidable longitudinally for engaging the stepped jaws with nuts of different sizes. The member 6 is received in recesses 4, 5 in the main jaws and retained therein by ribs engaging in grooves 15, 16. A projection 17 is provided on the front of the member 6 for moving it to and fro, stops 12, 23 limiting its movement in forward and backward directions respectively. Depressions 18, 19 in the wrench body coact with a spring-pressed stud at the back of the member 6 to secure the latter in its various operative positions. Instead of being guided along the face of the wrench head, the slidable member 6 may be disposed in a throughway slot therein, and its displacement may be effected by providing the adjacent faces of the jaws. at their minimum width with teeth engaged by a worm mounted on the body of the wrench.
Patent GB-1092351-A (GB)
Title: Improvements in or relating to stretch fabrics
Inventor: MARTIN KARL ANTHONIE
IPC: D06M15/643
Filed: 1964-06-25
Abstract: Weft knitted fabrics formed from bulked yarns, e.g. false-twist crimped polyhexamethylene adipamide yarn, are treated with not more than 0.5% by weight of a silicone finish to impart thereto improved elastic recovery.  The finish may be applied by padding or exhaustion.  The treated fabrics may be used in the production of swimwear.
Patent GB-460131-A (GB)
Title: Improvements in free-wheel hubs and back-pedalling brakes for bicycles and the like
IPC: B62L5/04
Filed: 1936-09-28
Abstract: 460,131. Coaster hubs. PROKOP, C. Sept. 28, 1936, No. 26243. [Class 136 (ii)] In a free-wheel hub with back-pedalling brake for bicycles &c. of the type having a nut actuated by a screw-threaded extension of the driving-wheel, the hub of the road wheel.is driven by a clutch member in the form of a cylindrical ring which is mounted on and participates in the axial movement of the nut, and which is caused to be tilted by such axial movement in forward driving, whereby it is brought into operative engagement with the hub. The nut d engages a screw-threaded extension b of the driving-sprocket c, and carries a clutch ring e, which may be vertically and diametrically divided and is pivoted on trunnions f on the nut, so that on its displacement to the right during forward driving, the lower part of its oblique outer end engages a shoulder g on the hub h, whereby the ring e is tilted into driving engagement with the hub. Rotation of the nut is opposed by a coil spring k, which frictionally engages a tubular extension i on the nut and abuts against the opposite bearing cone. On back-pedalling, a conical extension l of the clutch ring e expands a split brake sleeve m (keyed at n against rotation) into engagement with the hub. In a modification, the brakeexpanding cone is separate and is adapted to be actuated from the clutch ring e through wedge-shaped cams.
Patent GB-172734-A (GB)
Title: Improvements relating to boxes, folders and the like
IPC: B65D75/54
Filed: 1920-09-15
Abstract: 172,734. Taylor, G. B. Sept. Covers.-A box or folder for handkerchiefs, gloves, &c., has a calendar &c. 3 attached by flexible means to the lid or folder top in such a way that it lies beneath the lid &c. when on the box. The lid is adapted to be detached and suspended by means of a ribbon 2.
Patent GB-837189-A (GB)
Title: An electrical dead-front socket outlet and a plug cap for use in combination therewith
Inventor: HUBBELL HARVEY
IPC: H01R13/453
Filed: 1958-08-18
Abstract: 837,189. Cam-operated switches. HUBBELL Inc., H. Aug. 18, 1958, No. 26480/58. Class 38 (5). [Also in Group XXXVI] A socket for use in locations where explosive gases may be present has its spring-pressed contacts 69, 86 (Figs. 1 and 2), connected to the mains 37 and earth wire 38 through switch contacts 64, 80 which are closed to energize the socket contacts 69 by cam surfaces on insulating plate 51. Closure is effected by rotation of shaft 44 when plug member 101 (Fig. 6), has its extension 117 inserted into the socket and turned. When plug extension member 117 is inserted it depresses the socket closure plug 131 against spring 133 and the contacts 118 and earth contact 119 which it carries enter along slots in insulating body member 19 to engage contacts 69, 86. Contact 119 is wider than contacts 118 and the entry slots are of corresponding width so that the plug member can be engaged in one position only. Plug member 101 is retained in engaged position by engagement between contacts 118, 119 and shoulders 109 and also by engagement of channels in the end of extension 117 with ribs 130 on socket closure plug 131 which is itself prevented from turning. Cam-plate 51 is biased to the off position by spring 57. The inner chamber 22 within which the circuit is made and broken is sealed at the cable entry (Fig. 2) and between 22 and member 19 by hard wax seals 93 and 99.
Patent GB-1291670-A (GB)
Title: A new 4-substituted-1,4-benzothiazine derivative, its preparation, and its medicinal use
Inventor: MAYER KARL HEINRICH
IPC: C07D417/12
Filed: 1971-04-19
Abstract: 1291670 Nitrofuran derivative FARBENFABRIKEN BAYER AG 19 April 1971 [25 April 1970] 26506/71 Heading C2C The novel compound, 4-(5-nitrofurfurylideneamino) - octahydro - 4H - 1,4 - benzothiazine- 1,1-dioxide, is prepared by reacting 5-nitrofurfural or a reactive derivative thereof with 4 - amino - octahydro - 4H - 1,4 - benzothiazine- 1,1-dioxide. 4 - Amino - octahydro - 4H - 1,4 - benzothiazine-1,1-dioxide is prepared by reacting cyclohexene oxide with 2-mercaptoethanol to form 2 - hydroxyethylthio - cyclohexanol, oxidizing this with H 2 O 2  and treating the resulting sulphone, without isolation, with dilute aqueous sodium hydroxide to give octahydro-1,4-benzoxathiace-4,4-dioxide, and reacting this with hydrazine hydrate to give the desired compound. Pharmaceutical compositions having antitrypanosomal and antihyperglycaemic activity, for oral or parenteral administration, comprise the above novel compound together with a pharmaceutically acceptable diluent or carrier.
Patent GB-224548-A (GB)
Title: Improvements in or relating to the carburetting of fluids
IPC: C10J1/12
Filed: 1924-11-07
Abstract: 224,548. Fabbrica Carburatori Memini. Nov. 7, 1923, [Convention date]. Spray carburettors.-In apparatus for carburetting gases in which the gas is passed over or through liquid fuel contained in a vessel, the mixture is enriched by a jet of liquid obtained from a pipe leading from or connected to the bottom of the vessel and having an outlet adjacent a Venturi nozzle in the gas offtake pipe. When the gas is bubbled through the liquid as in Fig. 1, the pressure causes the liquid to flow up a pipe H controlled by a valve G and to pass through a jet where it is vaporized by the car buretted gas passing through a Venturi tube J in the offtake tube E. Extra air may be admitted through a valve N. In Fig. 2 the gas flows through a pipe D<1> over the surface of the liquid or partially through the liquid bv a pipe D<11>. The pressure on the surface of the liquid causes it to rise in a pipe H and be ejected through a jet L where it is vaporized' by the carburetted gas passing off through a pipe controlled by a valve R. Strainers B ensure the atomization of the entrained liquid.
Patent GB-1076438-A (GB)
Title: Diffusion barriers for gas separation
IPC: B01D61/38
Filed: 1966-06-15
Abstract: Diffusion barriers for gas separation comprise films of liquids or quasi-liquids on supports.  Specified liquids include water and diethylene glycol: the water may be immobilized to form a quasi liquid by the addition of e.g. agar, or by incorporation as a plasticizer in a film of polyvinyl alcohol, the polymer being cross-linked to prevent absorption of the water thereon.  The support may be a solid porous material suitably treated if necessary so as not to be wetted by the liquid, or a film of a solid permeable material, such as a silicone rubber.  In Fig. 2 (not shown) a layer of liquid 21 is supported on an unwetted porous plate 22 which may be of PTFE, or a finely woven paper, cloth, screen or porous plate treated with an anti-wetting agent such as PTFE.  In Fig. 3 (not shown) is a film 31 of water of diethylene glycol supported on a permeable layer 32 of silicone rubber on a screen 33.  The depth of the liquid is preferably ten times that of the support so that the permeation rates are effectively controlled by the liquid.  The thickness of the support may for example be, 10-4 in.  In Fig. 4 (not shown) is shown a quasi-liquid film of e.g. water immobilized by the addition of 1% of agar or polyvinylalcohol "plasticized" with water by e.g. exposure to water vapour.  The sintered metal plate 42 supports the film 41.  Other supports such as untreated paper may also be used.  The apparatus may be used to separate O2 from CO2