baber/WOPTO huggingface dataset:
Patent GB-823944-A (GB)
Title: Digital position indicator
IPC: H03M1/00
Filed: 1956-02-10
Abstract: 823,944. Electric selective signalling systems. INTERNATIONAL BUSINESS MACHINES CORPORATION. Feb. 10, 1956 [Feb. 14, 1955], No. 4179/56. Class 40 (1). In an apparatus for producing and transmitting electric signals representing in digital. form the relative position of two members, a movable core member 1 having a winding 12 supplied with A.C. over leads 13, 14, co-operates with a fixed core member 2 having a plurality of teeth 3 to 10. The primary winding 12 co-operates with secondary windings on respective teeth 3 to 10 as the member 1 is moved along from tooth to tooth. A secondary 15 is formed by weaving a wire from left to right in front of the odd numbered teeth and behind the even numbered teeth, and then from right to left in front of the even numbered teeth and behind the odd numbered teeth, this being equivalent to a single turn in one direction on each of the odd numbered teeth and in the opposite direction on the even numbered teeth. A second winding 16 is wound in one direction about the first and third pairs of teeth and in the opposite direction about the second and fourth pairs of teeth, and a third winding 17 is wound in one direction, about the first four teeth and in the opposite direction about the last four teeth. In this way, each tooth has a unique combination of winding directions of the three secondaries thereon. Assuming that member 1 is adjacent tooth 3, the three voltages induced in the secondaries are 180 degrees out of phase with the supply voltage across primary winding 12, and this represents binary number 000. Similarly, with member 1 adjacent tooth 4, the induced voltage in secondary winding 15 is in phase, while the induced voltages in secondaries 16 and 17 remain in antiphase, with the voltage across the primary winding. This represents binary number 001. As the member 1 progresses from tooth to tooth binary numbers corresponding to the decimal numbers 0 to 7 are represented. The secondary windings 15, 16, 17 are respectively connected to the grids of valves 18, 22, 25, and an in-phase voltage from a secondary winding causes the corresponding valve to conduct to energize a relay to light a lamp 21, 24, or 29. In a modification, the stationary member has a plurality of cylindrical teeth and each secondary is provided with the equivalent of two turns about each tooth. Additional turns may be provided, if desired. The apparatus may be arranged to indicate the angular position of a rotatable shaft, the movable core member being attached to and extending radially outward from the shaft, and co-operating with a stationary member having a plurality of teeth extending radially inward. Fig. 4 shows an arrangement for indicating twenty different linear positions according to the decimal number system. The movable core 76 with a primary winding 77 co-operates with a stationary member 55 having twenty teeth 56 to 75. Secondary windings 78 to 87 are arranged as shown to provide twenty unique combinations, representing 0 to 19.
Patent GB-680299-A (GB)
Title: Improvements relating to television and like receiving aerials
Inventor: JEFFERY GLYNN BENNETT
IPC: H01Q1/44
Filed: 1950-02-18
Abstract: 680,299. Aerials. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Feb. 19, 1951 [Feb. 18, 1950], No. 4208/50. Class 40 (vii). A unipole aerial includes the standard of a standard lamp or part of it. Such an aerial is suitable for receiving television signals and may comprise a metal tubular standard 2 carrying a lamp-holder 3 and shade support 4. The standard is mounted in an insulated base 1 and mains leads are taken from the lamp-holder through the standard and out of the base to a mains plug in the usual way. A coaxial cable 5 connecting the aerial to the receiver is also led into the base 1 and has its inner conductor connected to the standard 2. The shade support may be an electrical extension of the aerial or insulated therefrom according to the length required. The outer conductor of the coaxial cable 5 is connected to a coiled conductor 6 a quarter-wavelength long which may consist of 1<SP>1</SP>/ 3  turns of flat turn cable with the ends joined. The coil may be inside, above, or below, the base 1. In a modification, the base 1 may be dispensed with and the spiral conductor 6 made strong enough to itself support the standard and lamp. Instead of a spiral coil 6 a pair of helical coils 7 arranged coaxially and horizontally in or on the base 1 may be used; each coil having an electrical length of #/4. A further pair of coils 8 at right angles to the first may be added. Should the length of aerial required be less than the light of the standard the desired length may be isolated from rest by the insertion of an insulating member. Specification 670,340 is referred to.
Patent GB-823626-A (GB)
Title: Improvements in or relating to dehydrogenation of hydrocarbons
IPC: C07C5/333
Filed: 1958-02-10
Abstract: <PICT:0823626/IV (b)/1> In the system of the parent Specification for catalytically dehydrogenating hydrocarbons which comprises a cycle of operations carried out without interruption in a battery of reactors operated in timed sequence, the sequence of operations being (1) hydrocarbon dehydrogenation, (2) steam purging, (3) catalyst oxidative regeneration, (4) evacuation, (5) catalyst reduction with hydrogen-containing gas, operations (1) and (3) being substantially equal in time and each of less than 10 minutes, a battery of 3 reactors is employed and the hydrocarbon charge or regenerating gas is introduced centrally above the catalyst bed. Preferably a plurality of batteries is employed side by side, the batteries working in unison or staggered.  Fig. 3 shows unison working of two batteries, comprising reactors 1-3 and 4-6 respectively, purge A representing operation (2) and purge B operations (4) and (5) and employing a fifteen-minute cycle, five minutes seven seconds being employed for each of operations (1) and (3).  The flue gas from the regeneration step is used to preheat incoming regenerating gas or is reused, admixed with extra oxygen if necessary in another reactor. Also if regeneration is carried out at superatmospheric pressure, the energy of such pressure on release can be recovered in a turbine. Specification 794,090 also is referred to.
Patent GB-1059631-A (GB)
Title: Apparatus for producing stimulated emission of radiation
Inventor: MORANTZ DANIEL JOSEPH
IPC: H01S3/093
Filed: 1963-02-01
Abstract: 1,059,631. Lasers. NATIONAL RESEARCH DEVELOPMENT CORPORATION. March 13, 1964 [Feb. 1, 1963; March 15, 1963], Nos. 4343/63 and 10435/63. Heading HiC. [Also in Division G2] Apparatus for producing stimulated emission of radiation comprises a curved internally reflecting surface 2 whose curvature enables radiation to be propagated along a substantially curved path through an active material, means for deriving from the stimulated radiation coherent radiation which travels along the same path and an arrangement 13, 14 for extracting the coherent radiation from the apparatus. As shown, light from source 7 is collimated at 8, filtered at 9, and focused by a paraboloidal cusp 3 to a narrow annular ring of light on the wall 2, active material either filling the space between surfaces 2, 3, or, as shown, between wall 2 and a retaining cylinder 12. The output of the laser cell is obtained by a tangential hole 13 and a light pipe 14. If the device is used as an amplifier, additional holes and light pipes are provided, for instance, the active material may be contained within an optical fibre which passes into the cell through one hole, is looped around the cell at the position of the focused ring of light and then passes out of the cell through another hole. The coherent light input is fed into one end of the optical fibre and the amplified output is obtained from the other end. The whole cell may be immersed in refrigerant 11 in a vacuum flask 10. In a modification, the active material is provided on the external surface of cylinder 12 so that total internal reflection occurring in the material forms the curved path. In another form, Fig. 2 (not shown), an internally reflecting cylindrical surface (25), which either extends upwards as a cylinder, or is of frusto-conical shape (22) cooperates with an externally reflecting conical surface (23) arranged therein so that light from a source (26) is concentrated by the annular reflecting surfaces into a narrow region near their junction (24) where the active material is located, the coherent radiation being extracted by a tangential light pipe (27). In another arrangement a metallic foil (31), Fig: 4 (not shown), is coiled into a spiral with a fully reflecting mirror (33) at the inner end and a partially reflecting mirror (34), leading to an output light pipe (35), at the outer end. The whole structure is immersed in liquid or gaseous active material or solid material is provided between the turns of the spiral or deposited on the inner surface (32) of the foil (31). When used as an amplifier the inner mirror (33) is replaced by a plurality of reflecting surfaces (44), Fig. 6 (not shown), enabling an axially directed input signal (45) to be redirected into paths (46) entering the spiral. Various methods of forming the spiral structure are described.
Patent GB-399703-A (GB)
Title: Improvements in or relating to thermionic amplifiers
IPC: H03F3/28
Filed: 1933-02-13
Abstract: 399,703. Valve amplifying circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London. -(Assignees of Barden, W. S.; 289, Vanderbilt Avenue, Stapleton, Staten Island, New York, U.S.A.) Feb. 13, 1933, No. 4414. Convention date, Feb. 12, 1932. [Class 40 (v).] A push-pull amplifier comprises two valves 7, 8, whose grids are connected by a pair of equal resistances 12 connected in series and having their junction earthed, a gain control potentiometer 10 being connected across the resistances 12 so that the potentials fed to the grids are rendered symmetrical with respect to earth. Preferably the junction of the resistances 12 is earthed through an adjustable source of potential comprising a resistance 14 and a battery 15, so that the system may have its grid bias adjusted to operate as a class A, class B or class C amplifier.
Patent GB-311678-A (GB)
Title: An improved device for rotating fluids
IPC: H02K7/065
Filed: 1928-02-13
Abstract: 311,678. Buys, A. G. A. Feb. 13, 1928. Converting electric energy into motion of fluid by action of magnetic field. - A container 8 is carried on spiral springs 4 of magnetic material mounted on a base 6. To each spring corresponds an electromagnet. 2 energized by an alternating current. It is stated that a rotary motion is produced in fluid in the container 8, which may be utilized for centrifugal operation, the direction of rotation depending on the direction of winding of the spiral. By employing two sets of springs wound in opposite directions and energizing the electromagnets corresponding to either set as desired rotation in either direction may be obtained.
Patent GB-470415-A (GB)
Title: Improvements in or relating to dyeing or like treatment of textile fabrics
IPC: D06B3/32
Filed: 1936-02-14
Abstract: 470,415. Feeding webs. BRITISH CELANESE, Ltd. Feb. 14, 1936, No. 4538. Convention date, Feb. 14, 1935. [Class 100 (i)] In apparatus for the dyeing or like treatment of fabric webs in which the web passes from one batch roll to another, each batch roll is provided with a brake; and a member for applying the braking force is moved as the web winds from one roll to the other in such a manner as to reduce the braking force on the roll from which the web is being delivered so as to maintain the tension of the web substantially constant. The batch rolls 2, 3 are provided with brake bands 15, 16 anchored at one end and connected at the other end through springs 17, 18 and turn-buckles 1 to blocks 12 adjustably secured by screws 11 to the arms of a bell-crank lever 9 fixed to a shaft 5 to which is also secured a bar 7 carrying rollers 27 engaging the web. As the web is unwound, the arm 7 moves in such a direction that the tension of the brake spring of the unwinding batch roll is gradually decreased thus maintaining a constant tension in the fabric. The batch rolls during the winding of the fabric thereon rotate towards the anchored ends of the brake bands so that, in spite of the increasing tension of the brake spring, no substantial resistance to winding is provided by the brake.
Patent GB-1457072-A (GB)
Title: Reaction products of benzotriazole with carboxylic acids or with phosphorus-containing esters and organic compostions containing them
IPC: C23F11/14
Filed: 1974-01-31
Abstract: 1457072 Reaction products of phosphorus esters or carboxylic acids with benzotriazole MOBIL OIL CORP 31 Jan 1974 [22 March 1973] 04582/74 Headings C2P and C2C [Also in Division C5] The invention comprises the product obtained by reacting, at 100 to 200 C., 1 mole of benzotriazole with from 0À5 to 1À0 mole of a carboxylic acid or of a mono- or di-organo phosphate or -phosphite ester, the acid and the phosphate or phosphite containing as the acid radical or as an ester-forming group respectively an organic group containing at least 15 carbon atoms. The benzotriazole used is generally the 1,2,3-isomer (1-H benzotriazole) and the acids used in the examples are oleic acid and a dimer acid (comprising 75% dimerized linoleic acid and 25% trimerized linoleic acid). The preferred phosphorus esters are the mono- and di-(nonylphenyl) phosphates and phosphites, examples being given for the use of the di-(nonylphenyl) phosphates and phosphites. The products are useful as anti-corrosion agents for copper and may be added to lubricants or hydrocarbon fuels, including gasoline.
Patent GB-1467563-A (GB)
Title: Installation for contacting a liquid and a gas
IPC: F28F25/10
Filed: 1975-02-04
Abstract: 1467563 Degassing liquids HAMONSOBELCO SA 4 Feb 1975 [8 Feb 1974] 4665/ 75 Heading B1M [Also in Division F4] A tower 1 in which a liquid (e.g. water) is brought into contact with a gas (e.g. air) is encircled at its base by an annular chamber 10 in communication with the gas inlet 5 of the tower and comprising a closed outer wall 11 and a substantially horizontal upper wall 9, said upper wall having therein a plurality of apertures in each of which is mounted a blower 6 with its axis of rotation extending vertically. In the tower shown, atmospheric air is drawn by the blowers 6 into the chamber 10 from which it passes via inlet 5 into the tower wherein it flows upwardly in contact with water sprays 3. The contacting fluids may in contraflow relation (as shown) or in crossflow (Fig. 3). The tower may for example be used for cooling or degasifying the liquid by atmospheric air. The blowers 6 are preferably arranged around the tower in a circle or in two or more concentric circles wherein the blowers are relatively staggered, e.g. Fig. 2. In such an arrangement the blowers may vary in size from row to row, the larger blowers being in the outer row. Air flow direction is as shown by the arrows and may be assisted by a deflector 11a. Alternatively the wall 11 may be inclined to constitute the deflector. The wall 11 may be covered by a noise-attenuating panel.
Patent GB-685849-A (GB)
Title: Improvements in a gate valve unit
IPC: F16K3/312
Filed: 1950-02-23
Abstract: 685,849. Gate valves. RALLS, G. C. Feb. 23, 1950, No. 4684/50. Class 135. A gate valve comprises a body 10 having a removable ring 12 in the flow passage through the body which ring forms a seat for the gate 13 operable by a screwed stem 14, whereby the gate is removable through the flow passage when the ring is removed. The ring is screwed into a counterbore 31 in the passage. The gate is wedged to its seat by cams 37 on the body engaging the tapered rear face of the gate which is withdrawn into a lateral chamber 24 to open the flow passage. Two gate-valves are shown with their bodies bolted together to clamp a blinding plate c therebetween, which plate may be positioned either to permit or prevent flow. The plate is movable after the body clamping bolts 91 are slackened and the bodies jacked apart by screws 90a. Cocks 96 are provided for venting the space between the gates before moving the plate.
Patent GB-543416-A (GB)
Title: Improvement in method of welding
IPC: B23K25/00
Filed: 1941-04-09
Abstract: 543,416. Uniting by fusion. LINDE AIR PRODUCTS CO. April 9, 1941, No. 4732. Convention date, May 29, 1940. [Class 83 (iv)] In fusion welding with a bare fusible metal electrode immersed at one end in a deep layer C of granulated refractory fusible material the electrode E is maintained at an acute angle to the seam and is allowed to settle downwardly through the material as the end fuses off so as to carry out welding without any translatory movement of the electrode with respect to the seam. The process may thus be carried out manually. The fusible material may consist of prefused silicates of lime or magnesia and alumina. The end of the electrode is maintained at a definite distance above the work. This distance may be judged by the operator or an indicator may be provided. One form may consist of a voltmeter connected across the electric circuit, constant distance of the electrode from the work being indicated by maintaining the voltage constant by raising or lowering the electrode. The voltage may also be maintained constant by changing the angle at which the electrode is held to the work the unfused granular material acting as a fulcrum. The angle should not exceed 45 degrees. Alternatively the indicator may consist of a buzzer or bell connected in the circuit to indicate fluctuations in welding voltage or current. The welding operation may be started by inserting a steel wool ball between the electrode tip and the work so as to cause fusion of a portion of the granular material, which then conducts the current to the work. The electrode holder may be fixed or slidable on the electrode. The process may be applied to ordinary seam or fillet welding.
Patent GB-230250-A (GB)
Title: Improvements in and means for testing balls, particularly those used in games, such as lawn tennis
IPC: G01M99/00
Filed: 1924-02-25
Abstract: 230,250. Stevens, P. H. Feb. 25, 1924. Testing tennis balls.-Comprises a platen carried on a pressure measuring balance and a second platen in axial alignment with the first, means for approaching the platens with the ball between them, and means for indicating the pressure exerted in compressing the ball to a given degree, or to indicate the degree of compression under a predetermined pressure. The ball to be tested is placed on a lower platen H guided in the framework and formed with a screwed shank engaging a screwed socket G rotatable by bevel gear G<2> G<2> from a shaft G4. The platen is raised until the ball engages a second platen F pivoted to a counterweighted lever B pivoted at B<1> to the frame. This lever is loaded with a weight B<3> which may be moved along the beam by fingers K<1> carried by a rack K operated by a pinion rotated by a milled head. The lever B is given a predetermined load and when the lever is raised by upward movement of the platen H, the depression given to the ball is read off on a dial over which moves a pointer carried by a disc moving in one with a wheel G<10> driven by a worm G' on the shaft G<4>. Fractional parts of a revolution of the shaft G<4> are read off on a wheel G<9>. The wheel G<9> and the indicating disc on the shaft G" are held by friction on their shafts and each may be moved relatively to the shaft to effect a zero adjustment.
Patent GB-590595-A (GB)
Title: Improved process and apparatus for the polymerisation of iso-olefins
IPC: C08F210/12
Filed: 1944-03-14
Abstract: <PICT:0590595/IV/1> <PICT:0590595/IV/2> An iso-olefine having up to 8 carbon atoms with or without a minor proportion of a polyolefine having from 4 to 14 carbon atoms is continuously polymerized at a temperature below -60 DEG  F. in the presence of a Friedel-Crafts catalyst, to form a slurry of cold polymer particles in cold reaction liquid, the slurry is withdrawn from the reaction zone and the polymer particles separated from the liquid at substantially the same temperature, the liquid being returned to the reaction zone and the solid particles led into warm water to flush off residual reaction liquid and form an aqueous slurry of polymer.  The specified proportions of polymerizable materials comprise from 50-95 per cent of iso-olefine and from 50-5 per cent of a C4 diolefine, or (when used) less than 10 per cent of a C5 or higher diolefine.  The preferred iso-olefine is isobutylene and listed polyolefines include butadiene, isoprene, piperylene, dimethyl butadiene, myrcene and dimethylallene.  Preferably, the process p  is carried out in solution, liquid ethylene and alkyl halides being specified solvents and the Friedal-Crafts catalyst is dissolved in a low-freezing inert solvent, e.g. alkyl halides, carbon disulphide or sulphuryl chloride. In Fig. 1, an internal refrigerant, e.g. liquid ethylene, is used in the continuous polymerization vessel 1 and the cold slurry of polymer is continuously withdrawn through line 9 and pumped to the sump 10 of an enclosed rotary filter 11 operated at the same temperature as the reaction vessel.  As the filter drum is rotated a doctor blade 17 removes the polymer which drops on to a vibrating feeder 18 which conducts it into the flash chamber 19.  Steam and water are sprayed on to the polymer on an endless screen as it moves past the jets 21. The copolymer is dried, e.g. in a hot air tunnel drier.  In Fig. 2, cold slurry from the reaction vessel is pumped through line 61 to an enclosed jacketed or refrigerated chamber 62 provided with a vibrating screen 63.  The slurry is distributed from weir box 64 across the screen, cold liquid passing through and is collected and discharged through line 66 back to the reaction system, and polymer particles falling through hopper 72 into heated liquid in the flash chamber 71. Specifications 432,196, 580,407, [Group III], and Australian Specification 112,875 are referred to.
Patent GB-163764-A (GB)
Title: Improvements relating to motor vehicles
IPC: B62D21/18
Filed: 1920-02-17
Abstract: 163,764. Lambert, G. Feb. 17, 1920. Luggage holders; seats, arrangement of; wheelguards.-A three or four wheeled light-car has a tubular frame comprising upper widely spaced members 1 above the tops of the wheels and connected by bracing members 8, 10 to lower members 9 which are closer together than the wheel track, the lower frame also narrowing towards the front. A rear extension 12 with inclined stays 13 serves as a luggage carrier or for the accommodation of an extra seat. The longitudinal upper frame members may be provided with front and rear curved extensions carrying mud-guards, the front extensions serving also as wheel guards.
Patent GB-810215-A (GB)
Title: An improved method for the production of pasteurized beverages, and apparatus for carrying out this method
IPC: C12H1/18
Filed: 1956-02-15
Abstract: 810,215. Sterilizing milk, beer &c. JACOBSSON, B. Feb. 15, 1956 [Feb. 16, 1955], No. 4802/56. Class 49. [Also in Group XVII] A method of bulk-pasteuring and bottling beverages, e.g. milk or malt beverages, wherein an even flow of the beverage is made to pass through a plate pasteurizer 2 irrespective of any interruptions in the bottling process, comprises passing beverage through the pasteurizer to a bottle-filling machine 1 along a main line 3, a line 4 by-passing the pasteurizer such that if the capacity of the bottle-filling machine is exceeded the beverage passes through the by-pass line. A pump 6 is able to force a substantially constant amount of beverage through the pasteurizer at various pressures, the pressure in the machine 1 is adjusted by regulating the pressure in a pressure chamber 7, and a check valve 5 allows beverage to flow in one direction only in the by-pass line. Parts 8 and 9 signify a pump and separator respectively.