baber/WOPTO huggingface dataset:
Patent GB-305822-A (GB)
Title: Improvements in and relating to long distance cable installations
IPC: H01B11/12
Filed: 1928-02-14
Abstract: 305,822. Marks, E. C. R., (S³ddeutsche Telfon-Apparate-kabel-und-Drahtwerke Akt.- Ges.). Feb. 14, 1928. Phantom - circuit systems; loading circuits to improve transmission.-The conductors of telephone circuits employing the phantom system are sc arranged in a cable that in each quad the ratio of the capacity of the phantom circuit to that. of the side circuits is less than 6 to 5. The figure shows a known form of multiple cable which possesses this characteristic. Each pair of wires forming a side circuit is twisted together, and four such pairs a, b, c, d axe stranded together to form one section of the multipls cable. Opposite pairs such as b, c or a., d are employed as phantom circuits, The relatively small capacity of the phantom circuit enables the critical or limit frequency of that circuit to he raised, and reduces the variations of attenuation with frequency. This allows a. better balancing of the line at the repeater stations, with the result that a larger number of such stations can be usefully employed and the total permissible length of line is increased. The loading of the phantom circuit may be omitted or may be such as to give the same attenuation for the phantom circuit as for the side circuits; or if the loading is such as to give the same limit frequency for the phantom circuit as for the side circuits, then the attenuation in the phantom circuit is halved and the allowable distance between repeaters doubled. When continuously-loaded wires are used, the attenuation of the phantom circuit is about seven-tenths of that of the side circuits.
Patent GB-119815-A (GB)
Title: Pockets for Billiard and the like Tables.
Inventor: SUTCLIFFE STEPHEN
IPC: A63D15/00
Filed: 1918-03-16
Abstract: 119,815. Sutcliffe, S., and Overend, S. E. P. March 16, 1918. Billiards, tables for.-Pockets for billiard tables are formed with vertical lateral slots leading to openings above to permit the balls to be removed. The pockets are preferably made of rigid material and of box form. The Figures show a pocket a divided by a central partition a' and having slots f, g at the sides, the slots being enlarged at f<1> and g<1> respectively. Elastic pads e are fitted at the base and a cork &c. lining h is arranged as shown. A plate d is provided for fixing the pocket to the billiard table.
Patent GB-980684-A (GB)
Title: Improvements relating to flow machines for example blowers of the cross flow type
IPC: F04D17/04
Filed: 1961-02-08
Abstract: 980,684. Transverse-flow fans and pumps. FIRTH CLEVELAND Ltd. Feb. 8, 1961 [Feb. 11, 1960], No. 4685/61. Heading F1C. [Also in Division F4] A transverse-flow machine for inducing movement of gases or liquids comprises an inner structural unit outside and extending over the length of the impeller and providing at least part of the guide means therefor, and an outer structural unit, the outer unit being fixed in use of the machine and the inner unit being mounted for angular movement with respect thereto, the arrangement providing openings at different angular positions with respect to the impeller axis at each of a number of angularly spaced positions of the inner unit, and the impeller and guide means co-operating in each of the positions to induce a flow from one opening to another. The ventilator shown in Fig. 1 comprises a transverse-flow impeller 10 operating in a housing B (which may be inserted in a wall or window) and co-operating with guide members 13, 14 mounted between end plates 15 for pivotal movement about the axis of the impeller. The guide member 14 sets up a free vortex having a core V in the manner described in Specification 876,611. When the guide members 13, 14 are in the position shown, flow takes place in the direction indicated by arrows from the right-hand side to the left-hand side of the housing B. A surface 5 and a baffle 20 deflect the flow into a horizontal direction at the exit. When the guide members 13, 14, together with the end plates 15 are pivoted into the position shown in Fig. 2, the flow takes place from the left-hand side to the right-hand side of the housing B, as indicated by arrows, without reversal of the direction of rotation of the impeller 10. Surface 6 deflects the outflow into the required direction. In the machine shown in Fig. 4, flow takes place from opening 25 to opening 26 when the guide members 13, 14 are in the full-time position; when they are in the dotted position, the flow is reversed. Specification 876,614 also is referred to.
Patent GB-770755-A (GB)
Title: Improvements in grinding wheels for electrolytic grinding
IPC: E21B33/06
Filed: 1953-12-14
Abstract: A process of making an electrolytic grinding wheel comprises mixing silicon carbide with an aqueous sodium silicate solution, moulding the mixture under pressure to the desired shape, removing a substantial amount of water from the moulded shape, and firing it in a reducing atmosphere to the recrystallization temperature of silicon carbide, e.g. about 2,500 DEG C. 45 per cent by weight silicon carbide of No. 20 grit size and 55 per cent by weight silicon carbide of No. 100 grit size are mixed, and to each pound of mixture are added 14 c.c. sodium silicate solution (3 parts by weight water, 1 part by weight sodium silicate).  The mixture is then moulded, e.g. in a hydraulic press, the wheel is then dried to remove all but about 2 per cent of the water and then fired.
Patent GB-654091-A (GB)
Title: Method and apparatus for obtaining water vapor from the combustion products of internal combustion engines
IPC: F01N5/00
Filed: 1948-02-18
Abstract: 654,091. Exhaust systems. MULVANY, H. A. Feb. 18, 1948, No. 4716. Convention date, June 6, 1941. [Class 7(ii)] [Also in Groups I, XII, XXI and XXXV] Water is obtained from the exhaust gas of an engine, particularly on an aircraft, by cooling the exhaust in a condenser 8, passing the condensate through a filter 14 and then vaporizing it in an exaporator 5 which is heated by an exhaust gas coil 4. A centrifugal separator 11 may be included.
Patent GB-1061948-A (GB)
Title: New anthraquinone dyes and their production
Inventor: BRAUN WILLY
IPC: C09B1/514
Filed: 1966-02-03
Abstract: The invention comprises dyes of general formula <FORM:1061948/C4-C5/1> wherein R is H or a C1-C4 hydrocarbon radical which may contain alkoxy groups as substituents, Y is H, hydroxyl, the radical <FORM:1061948/C4-C5/2> or an alkylamino, arylamino, alkyl ether, aryl ether, alkyl thioether, aryl thioether or carboxylic acid ester radical and Z is a hydroxyl group or a group <FORM:1061948/C4-C5/3> and the anthraquinone nucleus may contain other substituents. They are prepared by reacting an appropriate mono- or di-aminoanthraquinone with 2-(4-bromobenzoyl)-propionic acid or an ester thereof and the carboxylic acid group may be subsequently esterified by reaction with appropriate alcohols if desired. The reaction preferably takes place at 100-230 DEG  C. in a solvent, e.g. nitrobenzene, naphthalene or chlorobenzenes using a slight stoichiometric excess of the propionic acid derivative. Preferably a basic reacting agent, e.g. alkali metal carbonates, acetates, and copper compounds may be used to accelerate the reaction.
Patent GB-396819-A (GB)
Title: Improvements in impulse senders for use in telephone or like systems
IPC: H04M1/274
Filed: 1932-02-17
Abstract: 396,819. Impulse transmitters. SIEMENS & HALSKE AKT.-GES., Wernerwerk, Siemensstadt, Berlin. Feb. 17, 1932, No. 4748. Convention date, Feb. 20, 1931. [Class 40 (iv).] In an impulse transmitter of the type in which a complete number is transmitted as the result of a single selecting operation, the impulse-transmitting discs 1 are provided at their peripheries with detachable and interchangeable digit-determining means such as screw pins 8 or toothed segments with different numbers of teeth. The appropriate disc is selected by a key 4 which moves contacts 5 rotatably mounted at 6 into operative engagement with the disc.
Patent GB-938747-A (GB)
Title: Improvements in or relating to liquid fuel dispensing apparatus
Inventor: SPALDING ROBERT GEORGE
IPC: B67D7/74
Filed: 1961-02-08
Abstract: 938,747. Liquid dispensing apparatus. WAYNE TANK & PUMP CO. Ltd. Feb. 5, 1962 [Feb. 8, l961], No. 4772/61. Class 116. In apparatus for dispensing different grades of petrol, a unit price indicating device comprises a stationary shaft 1 carrying a number of sets of price numeral discs 3, as shown arranged to show shillings, pence and halfpence, each of which is rotatable on the shaft against frictional resistance, and a rotatable index drum 4 made of opaque material and formed with windows arranged in pairs 5 and 5<SP>1</SP> which are longitudinally and angularly displaced in relation to each other so that only one pair of the windows is visible from the front at any given moment. The discs 3 are held between pairs of friction discs by collars secured to the shaft 1 and are manually movable as necessary to indicate a new price through the windows 5, 51. The drum 4 is rotated to indicate the price of a selected grade of petrol through a pinion 7 driven by a pinion 8 which also drives the pinion 9 of a brand indicating drum 11 which has as many flat faces as the drum 4 has pairs of windows. The pinion 8 is driven through a slipping clutch 14 by a shaft 12 which rotates at the beginning of each dispensing operation and turns constantly until a stop button is pressed at the end of the operation, the rotation of the pinion 8 being halted at the appropriate position by a braking device to indicate the price and name of the petrol being dispensed. The braking device may comprise a number of plungers actuated by energisation of a solenoid to press a ball into a detent and so stop the pinion 8, de-energization of the solenoid freeing the pinion 8 for further rotation. The pinion 7 has a ratchet 23 to prevent any backward movement of the drums 4 and 11. Specifications 938,748 and 938,749 are referred to.
Patent GB-658876-A (GB)
Title: Thermal power plant with steam generator and gas turbines for producing useful powerand driving compressors
IPC: F01K23/06
Filed: 1949-02-22
Abstract: 658,876. Gas and steam turbine plant. AKT.-GES. BROWN, BOVERI & CIE. Feb. 22, 1949. No. 4842. Convention date, Dec. 13, 1948. [Class 110(iii)] [Also in Groups XII and XIII] In a steam generator, in which the combustion gases are under pressure and are used to drive gas turbines 9, 12 which supply useful power and the compressed air for combustion, a combustion chamber 5, a first evaporator 6, a superheater 7 and a second evaporator 8 are arranged in that order in a straight line in the direction of gas flow. The whole is enclosed in a double walled casing 3. The compressed air is passed between the walls and is preheated. The high-pressure turbine 9 drives a highpressure compressor 2 and an A.C. generator 11 and is provided with an A.C. starting motor 15. The turbine 12 drives a lowpressure compressor 1 and has a D.C. starting motor 14 which may be used to assist the turbine. The gas turbine exhaust is used in a feed-water heater 13, an air preheater or both. The turbines have separate emergency governors 31, 35 which control byepass valves 34, 38. In the steam system, feed-water under pressure enters the heater 13 at 16, passes to a steam separator 17 and is then circulated by a pump 18 through the evaporators 8, 6, the separator 17 and the superheater 7. The evaporators 6, 8 have central byepass tubes 20, 27 controlled by valves 21, 28. The valve 21 is governed by the temperature of the superheated steam acting through a thermostat 23 and pressure cylinder 22. The valve 28 is governed by the temperature of the gases in front of the turbines acting through a thermostat 29 and cylinder 30. The steam may be used in a steam turbine.
Patent GB-272169-A (GB)
Title: Improvements in fluid filters
IPC: B01D29/11
Filed: 1927-02-21
Abstract: 272,169. A. C. Spark Plug Co., (Assignees of Babitch, A. M.). June 3, 1926, [Convention date]. Filters having sheet filtering-materials. - A tapered bag 32 is folded to form one or more annular pockets in a casing 10, the outer edge of the bag being bound to a ring 51 held between the body of the easing and its cover, while the inner edge is attached to a hollow nut 20 which screws into and fixes an inlet connection 18. The arrangement is such that, on removal of the cover, the filter element is withdrawn. The pockets contain spacing elements which may be of vertically-corrugated sheet metal. The spacing elements engage at the top against a slotted plate 27 and are held in place below by a similar plate 50 supported by a wire 31. Liquid from the inlet 18 passes to the central space 38 and the spaces between the pockets, and the filtered liquid passes from the pockets to an outlet 19. The filter is stated to be applicable for treating lubricating oil. It may be fixed on the dashboard of a vehicle.
Patent GB-124553-A (GB)
Title: A Process for the Manufacture and Production of Alumina, Sodium, and Potassium Aluminates, Sodium and Potassium Carbonates and Potassium Chloride.
Inventor: DUTT ERIC EDWARD
IPC: C01F7/22
Filed: 1918-03-22
Abstract: 124,553. Dutt, E. E., and Dutt, P. C. March 22, 1918. Potassium chlorides; sodium and potassium carbonates.-The reactions for forming sodium or potassium aluminate described in Specifications 118,155 and 118,156 are effected in a rotary furnace a, carbon and calcium hydrate being omitted from the reaction mass. Arsenic trichloride evolved in the chamber a is passed into a second rotary chamber b containing pieces of feldspar to obtain potassium chloride, as described in Specification 116,438. The charge from the furnace a is lixiviated, and the aluminate solution is treated with carbon dioxide to yield aluminium hydrate and sodium or potassium carbonate.
Patent GB-402051-A (GB)
Title: Method of and apparatus for the treatment of textile fibres
IPC: D01D10/04
Filed: 1932-02-20
Abstract: <PICT:0402051/IV/1> <PICT:0402051/IV/2> <PICT:0402051/IV/3> Textile fibres, particularly artificial silk fibres, are subjected to after-treatment in stages at the same point in a plurality of separate compartments or cells which have independently controlled inlets and outlets for the liquid or gaseous media used, such as washing, bleaching and dyeing liquors, hot air, steam, ozone &c. Thus desulphurization of viscose silk may be effected in three stages, preliminary, main and after desulphurization.  The several compartments may also be used for drying.  The treating liquid or gas passes down through the cops 8 and out through perforations in the base.  In the form shown on the right-hand side of Fig. 1, the cop-holder 9 can be rotated by a handle 31 to bring perforations 6<1> into or out of register with perforations 6 and so admit or cut off the entry of liquid to that chamber.  In Fig. 3 the cops are arranged in a series of radial chambers 15 connectible to one another by valves 16 and each provided with individual valved inlets 17.  In a further modification the liquid flows in a number of parallel streams through a corresponding number of rows of cops.  Fig. 5 shows three drying chambers, 18, 19, 20 for wet fibres, each chamber containing a heating element 21 and air is passed from one chamber to the next. If desired the drying air may be mixed with ozone so that bleaching and drying take place simultaneously.  Fresh drying air and ozone may be supplied from conduits 22, 23, 24, 25, and part of the air may be returned to the chamber 18 or 19.  It is preferred to subject the artificial fibres to the action of ozone before desulphurization.
Patent GB-1509861-A (GB)
Title: Spot-type disc brake
IPC: F16D65/092
Filed: 1976-02-10
Abstract: 1509861 Spot-type disc brakes DAIMLERBENZ AG 10 Feb 1976 [14 Feb 1975] 05126/76 Heading F2E A spot-type disc brake, Figs. 1 to 3, for vehicles, includes a brake carrier 10 and a floating saddle 13 both constructed as substantially flat frames having longitudinal webs chordal to the brake disc 11, wherein the floating saddle 13 has on one longitudinal web at least one brake cylinder 14 and on the opposite longitudinal web at least one thrust bearing 22, and wherein the floating saddle 13 and brake elements (20, 21, in each case) are supported on guide strips 15, 15a, on the brake carrier 10, the guide strips being disposed on the saddle side of the carrier, being spaced laterally from each other by a distance, e.g. sufficient to accommodate between them the cylinder 14, and extending transversely to the plane of the disc 11; each guide strip has either at least two guiding surfaces, e.g. 17, 18, Fig. 1, or a compound guiding surface, e.g. of arcuate form; each brake element surrounds the guide strips with guiding members, e.g. 23, Fig. 3, from outside in such away that the guiding surfaces support the element both circumferentially and radially. As shown in Fig. 1, the floating saddle 13 surrounds the same guide strips 15, e.g. with guiding members 16, Fig. 1, in the same manner as the brake elements but at the cylinder end only; at the opposite end the saddle 13 is supported on guide strips 15 only indirectly through the brake element there, Fig. 2. In Fig. 5 (not shown), outwardly-directed additional guiding members on the saddle engage additional guiding grooves in the brake carrier.
Patent GB-822952-A (GB)
Title: Improvements in the production of cyclo-octa-tetraene
IPC: C07C2/48
Filed: 1957-02-15
Abstract: Cyclo-octa-tetraene is prepared by the catalytic cyclizing polymerization of acetylene in the presence of inert solvents and inert gases at elevated temperatures and pressures wherein the reaction is carried out with a mixture of acetylene and an inert gas under a total pressure of more than 75 atmospheres absolute but below the decomposition limiting pressure of the gas mixture and at a concentration of acetylene in the liquid phase below the ignition limiting concentration.  Preferably the inert solvent, e.g. tetrahydrofurane, ethanol, benzene or acetone, or part thereof is saturated in the presence or absence of catalyst with acetylene using either acetylene or a mixture thereof with an inert gas at a temperature below the reaction temperature under pressure so that the acetylene concentration is below the ignition limiting concentration and the solution is introduced into the reaction vessel.  The inert gas may be nitrogen or a rare gas. Suitable catalysts are the halides, cyanides, thiocyanates or enolates of nickel.  In the examples tetrahydrofurane containing a nickel acetyl-acetonate is fed into a reactor with a sump and a mixture of acetylene and nitrogen continuously circulated through the solution, acetylene being added to the circulating gas to maintain the concentration.  In Example (2) the tetrahydrofurane is presaturated with acetylene.
Patent GB-1491745-A (GB)
Title: Respiratory apparatus
IPC: A61M16/00
Filed: 1975-02-06
Abstract: 1491745 Pneumatically operated respirator DRAGERWERK AG 6 Feb 1975 [6 Feb 1974] 5187/75 Heading A5T A respiratory apparatus comprises a pneumatically operated valve 3 for controlling flow of breathing gas and thereby controlling the respiration phases, an actuating device 18 connected to said valve for emitting a pneumatic signal to operate said valve, a pressuredependent cycling system 38 for operating said device and a time-dependent cycling system 39 for operating said device. As shown, gas is supplied from a pressure reducer 1 to the patient supply pipe 9 via the valve 3 and the actuating device 18 is a pneumatic accumulator. Both the pressuredependent and time-dependent cycling systems comprise a pressure-sensitive means 11, 28 with a pointer and fly 12, 33 arranged to interrupt streams of control gas in limiters 13, 20, 34 on the attainment of certain maximum and minimum pressures determined by the position of the limiters. The signals from these limiters are converted by negators 15, 21, 35 and the inspiration initiation signals from both the cycling systems are supplied to the valve-actuating accumulator 18 through a pneumatic OR-gate 17. In the pressure-dependent system the pressure-sensitive means 11 is in communication with an antechamber 8 in the patients breathing supply line and registers respiration. In the timedependent system the pressure-sensitive means 28 is supplied with gas pressure by a second accumulator 25 actuating a supply element 27 and the times of pressure build-up and discharge in the pressure-sensitive means are determined by the pneumatic resistances 29, 32 and the pneumatic capacitance 30.
Patent GB-1417913-A (GB)
Title: Three phase circuits for motor vehicles
IPC: H02H7/06
Filed: 1973-02-02
Abstract: 1417913 Vehicle battery charging systems ROBERT BOSCH GmbH 2 Feb 1973 [3 Feb 1972] 5258/73 Heading H2H  A circuit for charging the battery 27 of a motor vehicle comprises a three phase generator 22, a voltage regulator 23, a rectifier arrangement connected to the output of the generator and a battery charging monitoring device 34 connected between an excitation diode terminal 19 of the generator and first contact 32 of an ignition switch 31, a second contact 33 of the ignition switch being directly connected to an additional terminal 17 of the generator. The terminal 17 is connected directly or via a fuse (45), Fig. 5 (not shown) to the positive output terminal 16 of the generator so that in the event of a break 38 in the lead 26 connecting the. terminal 16 to a terminal 24 of a starter motor 25, the pilot lamp 34 does not light up when the ignition switch 31 is closed. In a modification the switch 31 comprises two mechanically coupled switches one of which is connected to the terminal 24 to prevent the current through loads 29, 36 from passing through the terminal 17.
Patent GB-146558-A (GB)
Title: Improved form of light intensifier for metal filament electric lamps
IPC: H01K1/26
Filed: 1919-03-04
Abstract: 146,558. Roberts, E. F. March 4, 1919. Reflectors and lenses within bulbs; filaments, supports for.-A glass rod in the form of a close spiral is mounted on or formed in one with the filament-support to modify the light by refraction and reflection; it may be coiled from a length of straight rod, or may be moulded in the final form. Fig. 7 shows a '' half-watt " lamp in which the spiral carries upwardly-bent filament supports; alternatively, the filament supports may depend from a collar on the spiral. In modifications, the spiral is mounted between collars on a straight filament-support rod, which may be of greater diameter than usual; or one spiral may be mounted inside a larger one. The spiral may be cylindrical, conical, triangular, square, hexagonal, octagonal, or of hour-glass form; and the rod of which it is formed may be of round, oval, hexagonal, octagonal, square, oblong, prismatic, single or double convex, elliptical, or fluted section. The rod may be twisted or may consist of two or more strands plaited or interlaced.
Patent GB-1216104-A (GB)
Title: Improvements in or relating to a double-comb cage and needles for a radial needle bearing
IPC: F16C33/48
Filed: 1968-02-02
Abstract: 1,216,104. Needle bearings. NADELLA and A. PITNER. 2 Feb., 1968 [28 Feb., 1967], No. 5323/68. Heading F2A. A needle bearing assembly has a double comb-type cage having two rows of needlecontaining apertures 2, 3, the apertures of one row extending axially from an inner portion in a direction opposite to the direction of the apertures in the other. The apertures are closed at the inner ends and open at outer ends adjacent the edge of the cage. The needles are shorter than the apertures so that there is no axial stress on the needles. Projections 18 19 are provided to retain the needles in the apertures.