baber/WOPTO huggingface dataset:
Patent GB-828685-A (GB)
Title: Improvements relating to the moulding of thermoplastic articles
IPC: B29C45/44
Filed: 1955-10-04
Abstract: 828,685. Injection-moulding. COLE Ltd.,  E. K., TERRY, B. E., and GLANVILL, A. B. Jan. 4, 1957 [Oct. 4, 1955], No. 28174/55. Class 87(2). A method of moulding a thermoplastic article with " undercut " contours comprises utilising a member of fusible metal in the moulding operation and, after moulding melting the member by heating it to a temperature insufficient to deform the moulded article. Due to the heat conductivity of the fusible metal member moulding is effected before the metal reaches its melting point. Suitable metals are said to be Wood's metal, melting point 60 ' 5‹C., or " Cerrobend " (Registered Trade Mark), melting point 70‹C. An injection mould for a polythene article 8 comprises an upper plate 1 with injection sprue 7, a hollow centre plate 2 and a lower plate 3 having recess to locate a bolt 5 carrying a fusible metal core 6. After moulding the article 8 and core 6 is held stationary and the bolt 5 is rotated to unscrew the article and core. The core 6 and bolt 5 may both be of fusible metal when moulding small articles.
Patent GB-780910-A (GB)
Title: Improvements in propellers for ships
IPC: B63H1/16
Filed: 1955-10-04
Abstract: 780,910. Screw, &c. propellers. TAYLOR, E., and SHIPP, R. Oct. 10, 1955 [Oct. 4, 1955] No. 28176/55. Class 114. A ship's propeller comprises helicoidal surface blades fitted internally and externally to a tapered barrel. A tapered barrel 8 surrounds the propeller boss 6 and is connected thereto by helical blades 3, outer helical blades 1 being secured on the outside of the barrel, preferably as continuations of the inner blades. The propeller may be cast in one piece or the barrel and outer blades be cast separately and welded to the inner blades. When the propeller is associated with a submerged electric motor carried on a bracket on the hull, the propeller is extended forwardly as at 36, Fig. 5 to provide large ports 35 leading into the interior of the barrel.
Patent GB-1379275-A (GB)
Title: Shelving units
IPC: A47B47/02
Filed: 1972-06-16
Abstract: 1379275 Illuminated shelving units LINDE AG 16 June 1972 [19 June 1971] 28200/72 Heading A4H A shelving unit comprises shelves 3 and a hollow rear wall 4 supported by a stand 2, the rear wall 4 comprising a main frame member, surrounding fluorescent lamps 13 and their control gear 14, and a light-transmissive panel 12 mounted in grooved bars 6 which are secured to the main frame member. If there are shelves 3 on both sides of stand 2, an additional rear wall 11 with a panel 12 is supported on the stand 2. Shelves 3, rear walls 4, 11 and bars 6 have parts 10, 8 that co-operate with recesses or parts 5, 9 on the stand and on the main frame member. Specification 1379276 is referred to.
Patent GB-519703-A (GB)
Title: Improvements in or relating to frequency control systems in high frequency electric circuits
IPC: H03J7/14
Filed: 1938-09-29
Abstract: 519,703. Automatic tuning correction. CACKETT, F. W., and THORNE, T. G. Sept. 29, 1938, No. 28276. [Class 40 (v)] [Also in Group XXXV] In an automatic frequency-control system comprising a circuit tunable over a desired frequency-range, including an inductive reactance and means for varying the permeability of the core of said inductance so as to vary the effective value of the reactance to control the resonant frequency of the tunable circuit, the inductance is connected across the tunable circuit through a reactance of opposite sign to the first-mentioned reactance, so as to constitute therewith a resonant circuit having a substantially-uniform controlling action for different settings of the receivers. The circuit thus obtained resonates to a frequency below the frequency range of the tunable circuit which for superheterodyne receivers is the tank circuit of the local oscillator and is controlled by voltages obtained from a discriminator circuit. In Fig. 1 a condenser 8 and coil 9 in series are connected in shunt with a local oscillator tank circuit comprising a variable condenser 6 and coil 7. The coil 9 is wound on an iron core over which is also wound a coil 10 connected to a discriminator circuit 11. The magnitude of the condenser 8 is so chosen that with the coil 9 it resonates at a frequency which is below the lowest frequency of the tank circuit. The Provisional Specification also describes (Fig. 2) the use of two variable inductances 12, 13, connected in shunt with the tank circuit 6, 7 the value of the inductance 12 being controlled to vary the resonant frequency of the circuit 6, 7 while the inductance 13 is varied with the tuning of the condenser 6. The inductance 12 may be either a cored coil or an electron discharge tube and the inductance 13 a variometer; as shown in Fig. 3 a variable inductance in the form of an electron discharge tube 14 is controlled by bias applied to lead 15.
Patent GB-261393-A (GB)
Title: Improvements in the manufacture and production of hydrocarbons of the benzene series
IPC: C07C15/00
Filed: 1926-11-11
Abstract: 261,393. I. G. Farbenindustrie Akt.- Ges. Nov. 12, 1925, [Convention date]. Cyclic hydrocarbons.-Gaseous olefines are converted into benzene hydrocarbons by first heating them to a moderate temperature under pressure, and then subjecting the resulting polymerization products to catalytic dehydrogenation at a temperature above 500‹ C. In the first stage, the. temperature preferably lies between 300‹ C. and 500‹ C., and catalysts or sulphuric acid may be present; inert gases, such as nitrogen, carbon monoxide, and hydrogen, may be mixed with the olefines. For the second stage, pressure may be employed, and other gases, such as ethylene, may be present. The hydrogen-containing gases resulting from the dehydrogenation may be used for the hydrogenation or reduction of organic compounds, and this reaction may be effected simultaneously with the dehydrogenation by introducing, say, hydrogenizable hydrocarbons or phenols into the gases prior to the second stage treatment. According to the examples, (1) ethylene is continuously passed at 400‹ C., and under a pressure of 40 atmospheres over active charcoal; the condensed products or the resulting gas mixture is then conducted under a pressure of 5 atmospheres over ammonium molybdate maintained at 600‹ C., yielding benzene and its homologues; (2) the polymerization products from the first stage of (1) are mixed with phenols and passed at 650‹ C. and at ordinary pressure over iron turnings coated with tin; benzene hydrocarbons again result. The Specification as open to inspection under Sect. 91 (3) (a) states that the debydrogenation catalysts may comprise molybdenum, tungsten, copper, ferrosilicon, zinc oxide, molybdenum oxide, chromium oxide, thoria, cerium oxide, copper borate, active charcoal such as that obtained from humus, active silica, and aluminium borate. Catalysts and construction materials, such as iron and nickel, which lead to the formation of methane or the deposition of carbon are to be avoided. Hydrogen is mentioned as a gas which may be present in the second stage. It also includes an example according to which a gas obtained by the pyrogenic decomposition of tar oils and containing 40 per cent olefines is led at 400‹ C. and under a pressure of 100 atmospheres over active silica, and the resulting gas mixture then taken under a pressure of 200 atmospheres over equal parts of molybdenum oxide and chromium oxide maintained at 600‹ C.; aromatic hydrocarbons, especially benzene, are produced; the hydrogen liberated may be employed in the second stage of the progress. This subjectmatter does. not appear in the Specification as accepted.
Patent GB-281987-A (GB)
Title: Improvements relating to electrical remote control and signalling systems
IPC: H02J13/00
Filed: 1926-06-08
Abstract: 281,987. Siemens Bros. & Co., Ltd., and Humphries, H. E. June 8, 1926. Drawings to Specification. Selective distant control systems; tell-tale apparatus.-Relates to a system for controlling and supervising apparatus located at a plurality of remote stations connected across common control and supervisory line wires. The system described is identical with that described in Specification 280,254 but the claims relate to the means whereby an alarm is given when a fault occurs on the control wires. An alarm circuit at the control station is kept normally open by high resistance relay which is energized by weak current flowing over the line wires. In the event of fault, e.g. line continuity broken, the relay releases and audible and visible alarms are operated and are maintained in operation until nullified by a key. When a control operation, such as the operation of a key, is effected and the transmision of the selecting impulses is initiated, the high resistance relay is cut out of the line circuit to increase the current and thereby facilitate operation of the substation line relays. A second relay included in the line circuit at the control station and responsive to the heavy current provides a further safeguard against false operation. If the system is normal, the second relay initiates impulse transmission, but if a break in the line wires exists, the relay remains de-energized and signal transmission is prevented. In order to call the control station from a sub-station the normally flowing weak current may be interrupted by a key at the sub-station to transmit a code signal. This key is short circuited when the line wires are in use for controlling apparatus at a substation The supervisory line wires also normally carry current in order that an alarm may be give in the event that line continuity is broken. When a supervisory signal is initiated, a preliminary train of impulses is sent prior to the transmission of the trains characterizing the sub-station apparatus, to operate a switch at the control station in a preparatory manner and thereby safeguard against mutilated codes due to two substations trying to transmit simultaneously. In the event of faulty operation, e.g. open line circuit, a single interruption or consecutive interruptions of the line circuit less in number than those composing the preliminary train, an alarm is given and the control station switch may be returned to normal by the operation of a manually controlled key. Specifications 280,485, 280,486, 281,988, and 293,253 also are referred to. The Provisional Specification refers to Specification 230,291, [Class 40 (iv), Telephones &c.].
Patent GB-828425-A (GB)
Title: Lightning arrester and housing therefor
IPC: H01T1/00
Filed: 1958-09-05
Abstract: 828,425. Lightning arresters. ALLMANNA SVENSKA ELEKTRISKA A.B. Sept. 5, 1958 [Sept. 23. 1957], No. 28540/58. Class 38 (4). A lightning arrester comprises a housing having several parts 15, 16 of tubular ceramic construction, the parts being joined together by an adhesive bond 28 and a mechanical connection 21 consisting of two flanges 29, 30 which are cemented to the ceramic housing parts and which, when bolted together, assist in holding the housing parts together. A space is arranged to be left between the flanges 29, 30 which space is in communication with the atmosphere. End caps 12, 13 are cemented on to the ends of the assembled housing and form the terminals of the arrester, the normal resistors and arc gaps being housed within the assembled housing and in contact with the end caps 12, 13. The housing may be gas-filled.
Patent GB-1058891-A (GB)
Title: Water dispersible pesticide concentrates
Filed: 1963-07-19
Abstract: A water-dispersible pesticide concentrate comprises a mixture of (a) 20 to 60 parts by weight of 1-naphthyl-N-methylcarbanate (b) 40 to 20 parts by weight of an N,N-dialkyl amide of the formula <FORM:1058891/A5-A6/1> where R is an alkyl or an aryl group, R1 and R2 are alkyl groups, of water-solubility not greater than 0.1 per cent by weight at 70 DEG F. (c) 40 to 20 parts by weight of an acid-stable hydrophilic non-ionic surface active compound and (c) 0.1 to 0.5 parts by weight of an acid.  Specified components (c) are alkyl polyoxyethylene ethers, alkylaryl polyoxyethylene ethers, and polyoxyethylene ethers of polypropylene glycols of fatty acid amides, of fatty acids, of fatty amines and of sorbitan fatty acid esters. Specified components (d) are acetic, boric, phosphoric, benzene sulphonic and toluene sulphonic acids or a phosphoric acid mono-or dialkyl ester.  The composition may be in the form of a smooth paste or cream.
Patent GB-208850-A (GB)
Title: Improvements in safety or protective devices for coin freed mechanisms
IPC: G07D5/04
Filed: 1922-10-21
Abstract: 208,850. Wright, J. A. Oct. 21, 1922. Fraud, preventing. - Relates to a safety device for preventing actuation of coinfreed apparatus by the insertion of a wire strip and comprising a casing or shoot in which is mounted a rocking lever controlling the inlet and outlet of the shoot in such a manner that passage is only allowed to a coin &c. which is shorter than the distance between the inlet and the outlet, the lever rocking to and fro to open and close the inlet and outlet as the coin passes through the device. According to the invention, the casing is in two parts 1, 1<a> of which the part 1<a> is detachable, the lower end 5 of the part 1<a> forming with the fixed part 1 the outlet 6 for the coin and the upper portion 4 of the part 1<a> forming with the end 3<a> of the rocking lever 3 the inlet 7 for the coin.
Patent GB-261410-A (GB)
Title: Improvements in or relating to magnetic separators
IPC: B03C1/14
Filed: 1926-11-13
Abstract: 261,410. Krupp Grusonwerk Akt.- Ges., F. Nov. 14, 1925, [Convention date]. Magnetic separators.-In a magnetic separator in which a fixed magnet 1 is arranged inside a drum 2 provided with rings 3, a rotary stripping device 4, of magnetizable material, e.g. a wire roller or brush is provided so as to contact with the wire rings 3 and remove the magnetic material adhering thereto. The device 4 forms a magnetic bridge between the rings 3, and if there is a gap between the rings, the brush &c. projects into the said gap.
Patent GB-1002491-A (GB)
Title: Improvements in the storage and transportation of natural gas
Inventor: SECORD HERBERT CAMPBELL
IPC: F25J1/02
Filed: 1962-07-25
Abstract: 1,002,491. Storing gases under pressure. VEHOC CORPORATION. July 25, 1963 [July 25, 1962], Nos. 28664/62 and 48003/62. Drawings to Specification. Heading F4P. Natural hydrocarbon gas is stored in a plurality of heat insulated containers at a temperature at least 20‹ F. below ambient temperature or 32‹ F. whichever is the lower and at a superatmospheric pressure sufficient to increaseits density three to four hundred fold without introducing liquid phase into the system. At storage temperatures above the critical temperature but less than the highest temperature at which both liquid and gas can coexist irrespective of pressure and defined as the cricondentherm, the operating pressure is at least 50 p.s.i. above the bubble-point dew-point pressure at the chosen temperature. At storage temperatures greater than the cricondentherm the minimum operating pressure is at least 50 p.s.i. above the cricondentherm pressure. The maximum storage pressure at temperatures less than the temperature corresponding to the maximum pressure at which liquid and gas can co-exist irrespective of temperature and defined as the cricondenbar is not more than 500 p.s.i. above the bubble-point dew-point pressure at the selected temperature. At temperatures above the cricondenbar, the maximum pressure is maintained constant at not more than 500 p.s.i. above the cricondenbar pressure. In all cases, the storage temperature is above the critical temperature of methane.
Patent GB-1031836-A (GB)
Title: One piece fusible connector
IPC: H01H85/08
Filed: 1963-07-19
Abstract: 1,031,836. Fusible cut-outs. BURNDY CORPORATION. July 19, 1963 [July 26, 1962], No. 28667/63. Heading H2G. A fusible element is formed by flattening a portion of a tube 14 and cutting away part of this flattened portion to form two narrow strips which are separated over most of their length to form fuse elements 16, 18. The tube may be flattened in the middle portion as shown, or at one end, so that only one end of each of the spaced-apart elements is joined to the tube. The element may be placed in a heat-resistant container 22 filled with quartz sand.
Patent GB-377506-A (GB)
Title: Device for automatically directing motor car head lights
IPC: B60Q1/124
Filed: 1931-10-15
Abstract: 377,506. Directing vehicle lamps. BUCLON, A., 12, Rue Frederic Mistral, Ales, Gard, France. Oct. 15, 1931, No. 28677. Convention date, Oct. 17, 1930. [Class 75 (iii).] In means for directing vehicle headlights from the steering gear, each headlight is integral or connected with a spindle 4 provided with an arm 6 adapted to be turned in one direction by means of a roller 8 or the like on a lever 10 connected by a wire 12 with the steering gear and, in the opposite direction, by a spring 5 under the control of the lever. The distance between the roller and the pivot 11 of the lever is greater than the distance between the axis of the spindle 4 and the roller in the normal position and the side of the arm 6 engaging the roller is curved so that the headlights are turned through comparatively large angles when the steering wheels are first deflected from the normal position, further deflection of the steering wheels causing only a comparatively small further deflection of the headlights. The parts are mounted in a metal case 1 provided with screwed studs 14 for attachment to the vehicle. The ends of the case are closed by a cover 3 forming a bearing for the spindle and a cover 2 provided with a lubricating hole 2a.
Patent GB-1347576-A (GB)
Title: Vehicle clutch release mechanisms
IPC: F16D13/64
Filed: 1971-06-18
Abstract: 1347576 Friction clutches AISIN SEIKI KK 18 June 1971 [18 June 1970 13 July 1970] 28739/71 Heading F2C In a diaphragm spring engaged friction clutch for a motor vehicle wherein a driven disc (114) is clamped between a presser plate (107) and a flywheel 102, the driven disc hub 119 is moved away from the flywheel 102 by resilient means 121 during clutch disengagement. As shown, a resilient tube 121 is secured to the hub 119 and carries a stepped sleeve 122 the radially inner portion 122b of which bears against the inner race 120a of a pilot bearing between an engine crank-shaft 101 and an output shaft 105. The radially outer part 122a of the sleeve 122 has a series circumferential grooves which are engaged by corresponding grooves on the inner periphery of the sleeve 121. The grooved surfaces may move over one another to compensate for clutch wear. In Figs. 1 and 2 (not shown) a resilient ring (20) is secured to sleeves (19), (21) respectively secured to the driven disc hub (16) and bearing against the inner race (18a) of the pilot bearing.
Patent GB-912566-A (GB)
Title: Guard ring for centrifugal drier
IPC: D06F37/12
Filed: 1961-08-09
Abstract: 912,566. Washing-machines. GENERAL MOTORS CORPORATION. Aug. 9, 1961 [Sept. 9, 1960], No. 28755/61. Class 138 (2). [Also in Group XIII] A moulded, one-piece flexible guard ring for the opening of a washing-machine drum comprises coaxial, axially-spaced rings 72, 74, 76, Fig. 4, of outwardly-open V-cross-section interconnected by radial ribs 78 each of which has a lug or toe 80 which fits into a corresponding outlet hole 36, Fig. 3 formed in a collar 34 about the drum 26 for the passage of water.
Patent GB-508827-A (GB)
Title: An improvement in electrical measuring apparatus, more especially electricity meters
IPC: G01R11/56
Filed: 1938-10-04
Abstract: 508,827. Supply meters. LANDIS & GYR AKT.-GES. Oct. 4, 1938, No. 28812. Convention date, Oct. 22, 1937. [Class 37] A member 5, for example a lifting cam actuating a tariff change device, is driven from the meter disc 1 through gearing 3 and is also acted on by a spring 6 serving as an auxiliary driving force in the same direction as that due to the disc 1 so as to leave the transmission gear 3 wholly or partially unstressed and thereby neutralize the frictional resistance. The driving force of the spring 6 may be increased to supply part of the power required to be done by the member 5, so that the driving disc 1 serves only as a controlling means. The auxiliary driving force may be intercalated in the transmission train 3 so as to neutralize only a part of the frictional resistance. The spring 6 is maintained wound up by a motor 7 through a slipping clutch 8, or by a like source of power, such as means operated by the insertion of a coin into a prepayment mechanism.
Patent GB-188648-A (GB)
IPC: B63H19/06
Filed: 1922-10-23
Abstract: 188,648. Gambin, A. Nov. 10, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Lubricating; resistance to propulsion, reducing. -Ships are provided with an air propeller, the slip stream from which is compressed and directed beneath the craft. Air propellers a, Figs. 1 and 3, are placed at the inlet b of a conduit c which is directed downwardly and aft, the air being thrust against the water d and then passes aft beneath the bottom of the vessel and between side keels g. Projections r, r' along the ship retard the flow and the conduit mav have helical fixed blades. The arms m supporting the propellers may also be formed as deflecting blades. A forward bottom float f may be provided. In a modification, the fore part of the ship has a stem on which, and immediately below the propellers, is a horizontal plane or breakwater. Existing ships may be provided with tubes mounted at the sides or stem and these may be rotatably mounted for steering.
Patent GB-391161-A (GB)
Title: Improvements in and relating to ships' davits
IPC: B63B23/08
Filed: 1931-10-19
Abstract: 391,161. Davits. BURRILL, L. C., BOCLER, H., and HUNTER, N. M., Wallsend Shipyard, Wallsend-on-Tyne. Oct. 19, 1931, No. 29002. [Class 115.] In davits of the kinds comprising a pair of struts c pivoted to the deck and carrying at their heads rocking jibs e from the outward end of which the boat is supported by the falls a, the jibs being swung outwards relatively to the struts c during the luffing movement of the latter, the rigid members g, which effect this rocking movement are pivoted at their lower ends to supports j which lie over and somewhat outboard of the supports d on which the main struts are carried. This arrangement enables the gear, when the gripes z are released to drop the chocks u, which incidentally also lock the struts c, to move outboard under gravity either under control of the boat falls alone or under control of additional lifts attached to the jibs e.
Patent GB-761201-A (GB)
Title: Improvements relating to tipping vehicles
IPC: B60P1/28
Filed: 1954-10-08
Abstract: 761,201. Tipping vehicles. THOMSON, E. M., and ABRAM, E. March 25, 1955 [Oct. 8, 1954], No. 29028/54. Class 108(1). A tipping body 11 has a tail gate 14 carried by triangular side brackets 15 pivoted at 20 to the body sides. The forward ends of the brackets are connected at 27, by links 25 to the vehicle chassis at 28 so that as the body 11 is raised the tailgate is moved clear of the rear of the body.
Patent GB-269088-A (GB)
Title: Improvements in keys for railway chairs
IPC: E01B9/58
Filed: 1926-11-18
Abstract: 269,088. Bowach, H. H., and Harring- ton, O. M. Nov. 18, 1926. Chair keys of the kind described in Specification 236,514 have the legs bent back to form convex surfaces e.