baber/WOPTO huggingface dataset:
Patent GB-812577-A (GB)
Title: Electron gun structures for cathode ray tubes
IPC: H01J29/82
Filed: 1956-09-12
Abstract: 812,577. Cathode ray tubes. GENERAL ELECTRIC CO. Sept. 12, 1956 [Sept. 12, 1955], No. 27920/56. Class 39(1). One or more gun electrodes of a cathode ray tube are each supported by one or more straps formed with a curved body portion which may be integral with the electrode two coplanar "lateral" portions and two end portions bent at right angles to the "lateral portions" and extending in the same direction in a direction transverse to the axis of the electrode to be embedded in support rods of beads of glass. The advantage is that tne two ends of a strap can be simultaneously embedded in the glass support rods or beads. The curved strap portion and the end portions 27 can be on the same side of the chordal plane, as shown, or less preferably, on opposite sides, Fig. 5 (not shown) ; in the latter case the spot welds between electrodes and straps and the straps themselves must be stronger since more pressure is put on them during the embedding process. Further supports can be provided in either embodiment by giving the straps at least one intermediate extension embedded in a further glass rod or bead, Fig. 6 (not shown). If the curved parts of the straps do not conform to the electrode contour the " lateral " parts 26, are spot welded to the electrodes. The lateral parts can be integral with the electrodes as by striking out parts of the cylinder wall. There are preferably two glass rods or beads 17, 18 as shown, and the straps 21, 22, 23, 24 for cathode plus control grid ; screen grid ; anode are all similar. In assembly the straps and cylindrical gun electrodes are secured together by spot welding and placed in correct spaced relation in a jig. Cradles holding molten glass are placed below the straps and, the jig moved towards the cradles so that the " terminal " parts 27 are all forced simultaneously into the glass, which is then allowed to cool. The terminal portions are embedded by # inch at least by a force applied parallel to the terminal portions. The gun is followed by a magnetic focusing device held from and inside the tube neck by spacer clips, or the gun may be of the electrostatically focused type and may be bent or tilted but straight. Prior art arrangements in which electrodes plus straps are brought up to glass rods or vice versa for embedding are referred to.
Patent GB-1427200-A (GB)
Title: Linear motor for high speed railroads
IPC: H02K41/03
Filed: 1973-06-12
Abstract: 1427200 Levitated transport systems HITACHI Ltd 12 June 1973 [15 June 1972] 27947/73 Heading B7L [Also in Division H2] In a magnetically levitated synchronous linear motor system having field coils 3, 7 on a vehicle 1 and rectangular armature coils 2 on the ground, propulsion is obtained by the interactions between the flux from coils 3 and the currents in the vertical sides of coils 2, and levitation by the interactions between the flux from coils 7 and the currents in the upper horizontal sides of coils 2; three phase operations with a 120 degree coil pitch armature is described with reference to Fig. 2 (not shown), and halfwave 120 degree coil pitch operation with reference to Fig. 3 (not shown). In the embodiment of Fig. 4 (not shown), a levitation coil (7) incorporates a yoke (10). In the modification of Fig. 5 (not shown) the levitation field at the upper sides of coils 2 is obtained by using core elements (11, 12) to guide flux from coils 3 to the desired zones, no separate levitation coils then being needed. In the embodiment of Fig. 6 (not shown) the armature coils (2) and the propulsion field coils (3) are horizontal, the levitation field coils (7) are vertical, and vertical coils (14) on the ground 6 are used to stabilize the vehicle. In the embodiment of Fig. 7 (not shown), a set of field coils (3) on the vehicle produce both propulsion and levitation, and a further set of coils (14) on the vehicle produce stabilization.
Patent GB-1108048-A (GB)
Title: An information storage medium and a method for retrieval
IPC: G06K21/04
Filed: 1965-07-02
Abstract: 1,108,048. Selecting-records. MINNESOTA MINING & MANUFACTURING CO. 2 July, 1965 [2 July, 1964], No. 28229/65. Heading G4M. Translucent sheets 20, e.g. of unoriented polystyrene, each have an optical discontinuity such as a craze mark, perforation or slot at positions 23, 24 corresponding to associated descriptors, and each such discontinuity is so oriented that light entering normally at edge 21 is reflected to exit normally at edge 22. A sheet 20 having a desired set of descriptors is identified by shining light through appropriate slots 26, 27 in a mask 28 and detecting, e.g., by sight or a photo-cell, light emerging at appropriate slots 31, 32 in a mask 29. The descriptors are allocated positions in a rectangular co-ordinate array based on edges 21, 22 in the arrangement shown, but with semicircular sheets 20 polar co-ordinates may be used. In another arrangement the sheets 20 are in the shape of equilateral triangles, red light is directed normally at a selected position on one edge of the sheets, green light is directed normally at a selected position on a second edge, and discontinuities located at the intersection of the light beams are arranged to deflect each beam through 120 degrees so that yellow light is observed emerging from the third edge.
Patent GB-1512347-A (GB)
Title: Oxygen sensor with noncatalytic electrode
IPC: F27D21/02
Filed: 1976-07-08
Abstract: 1512347 Solid electrolyte oxygen sensor NISSAN MOTOR CO Ltd 8 July 1976 [8 July 1975] 28425/76 Heading G1N In a solid electrolyte oxygen sensor having a layer of solid oxygen-ion conducting electrolyte with electrode layer on each side, the electrode layer which contacts the gas being measured comprises silicon carbide as its sole conductive component. The sensor is preferably used for exhaust gas oxygen measurement, the non-catalytic silicon carbide layer giving a larger output voltage variation with oxygen concentration than sensors with a catalytic layer. The silicon carbide electrode may contain 1 to 10 wt. per cent of trisilicon tetranitride and has a thickness in the range 1-100Á, preferably 4-20Á. The solid electrolyte is preferably ZrO 2 CaO and the reference electrode may be the same as the measuring electrode or Pt, Au, Ag or alloys thereof. Reference has been directed by the Comptroller to Specification 1423086.
Patent GB-1020682-A (GB)
Title: Flexible batteries
Inventor: WEBBERLEY MICHAEL JOHN
IPC: H01M6/42
Filed: 1963-07-18
Abstract: 1,020,682. Primary cells. ULTRA ELECTRONICS Ltd. Sept. 30, 1964 [July 18, 1963], No. 28442/63. Heading H1B. A flexible electric cell of the type activated by immersion in water has the positive plate constructed from copper mesh dipped in a melt of cuprous chloride, the negative plate from thin magnesium sheet and the separator from a flexible insulating material, e.g. a coarse knitted mesh of polypropylene strands, the two plates and the separator being enveloped in a plastic case, e.g. of polyethylene, perforated to permit ingress of water, e.g. sea-water, to activate the cell. A filter paper is folded around the positive plate while another is laid upon the negative plate. This latter filter paper may be sprinkled with anhydrous magnesium chloride which constitutes a catalyst on immersion of the cell in water. A plurality of such cells may be connected in series and wound into a coil, each cell layer being separated from the next by a strip of plastic material, e.g. polystyrene or resinimpregnated paper, and glass tubes inserted between the cell layers to permit the flow by convection of electrolyte between the layers to dissipate the heat produced by exothermic reaction in the electrolyte. Instead of being wound into a coil, the series-connected cells may be folded repeatedly through 180 degrees at the connections between adjacent cells to form a compact rectangular battery.
Patent GB-671850-A (GB)
Title: Improvements in electrical heating devices for rooms
IPC: F24D13/02
Filed: 1949-11-07
Abstract: 671,850. Electric room heaters. SANDOR,. F. M. A., (Representative of SANDOR, N.). Nov. 6, 1950 [Nov. 7, 1949], No. 28496/49. Class 39(iii) A heating device for rooms comprises an electric heating element 1 embedded in resilient heat-conducting material supported on a non-porous heat insulating board 2, e.g. of kapok or asbestos, having marginal flanges 2a on its under surface to provide air pockets between the board and the floor, a loosely woven textile material. 3 covering the device. The element 1 comprises wire coils or mesh encased in a flexible plastic covering. The flanges 2a may be of rubber, and intermediate flanges 2b may be provided.
Patent GB-915087-A (GB)
Title: Apparatus for and method of packaging articles
IPC: B29C51/22
Filed: 1960-08-18
Abstract: 915,087. Packaging-machines; packages. NEVINS CO. Aug. 18, 1960 [Nov.20, 1959], No. 28631/60. Class 94(1). A machine for forming " blister packages " comprises a series of recessed holders carried on a rotatable table, a blank consisting of an apertured card covered with plastic film being placed on a holder with the aperture over the recess and being conveyed past heating, blister forming, filling, folding, sealing and heat shrinking stations. Each blank is placed on a holder 58, located by lugs 62, and carried beneath an arcuate heater 65 by continuous anti-clockwise, Fig. 1, movement of the table 52. It then passes] beneath a vertically moveable punch 68 mounted on beam 75 pivoting about the table axis. A pad 88 initially engages the blank and the punch then presses the film 29 into the recess 60, Fig. 3. Vacuum is applied through the table and holder from a fixed chamber 97 to assist the forming process. The punch travels with the holder until withdrawn and is then returned by means 150, 152 operating on the beam 75. An article 33 is placed manually or automatically in the blister and the blank folded over at 119, Fig. 8, by bars 108, 109, 110, a part 115 of the bar 108 entering a groove 117 in the holder to initiate folding. Heat sealing strips 125, 126 on vertically reciprocating means 130 mounted on the beam 75 then seal together the folded halves. Rollers 139 on the sealer engage the holder, Fig. 6, so that the beam is moved by the holder until the sealer is raised. This movement also moves the punch in the manner previously described. Finally, heated air is blown up through the holder to shrink the blister, preferably from a chamber 156 similar to the chamber 97.
Patent GB-799955-A (GB)
Title: Improvements in or relating to the production of alkylene oxide polymers
Inventor: STEWART DAVID GORDON
IPC: C08F4/14
Filed: 1956-09-07
Abstract: Alkylene oxides are polymerized in contact with a catalyst of the general formula: <FORM:0799955/IV (a)/1> where M1 is a metal of Groups II or III and M2 a Group I metal or M1 a metal of Group III and M2 a metal of Group II, R1 an alkyl or alkoxy group, R2 an alkyl group, R3 an alkoxy group, R4 a halogen atom, R5 a hydrogen atom, a, b, c and d integers or zero and either (1) a + b + c + d = the valency of M1 and: <FORM:0799955/IV (a)/2> or (2) a + b + c + d = the valency of M1 + 1 and y = the valency of M2 + 1.  Many such catalysts are specified, examples being sodium and potassium aluminium tetraethyl, magnesium aluminium isopropoxide, the complex derived from aluminium triethyl and sodium fluoride and the complex derived from aluminium diethyl monohydrate and lithium hydride. Specified alkylene oxides which may be polymerized alone or inter se are ethylene oxide, 1,2-propylene oxide, 2,3-butylene oxide, isobutylene oxide, isopropyl ethylene oxide, cyclo hexene oxide and styrene oxide.  The process may be carried out in the presence of a solvent, e.g. benzene, toluene, xylene and aliphatic or chlorinated hydrocarbons.  The catalyst may be removed from the product by washing or by precipitation of the metals as hydroxides.  The examples describe the polymerization or copolymerization of (1) ethylene oxide using a solution of magnesium aluminium is opropoxide in benzene as catalyst, (2) propylene oxide using a solution of calcium aluminium isopropoxide in n-heptane as catalyst, (3) ethylene and propylene oxides using a solution in ethylene dichloride of the complex derived from aluminium triethyl and sodium fluoride as catalyst, (4) 2,3-butylene oxide using a solution of Al(iBu)3.NaF in toluene as catalyst, (5) styrene oxide using a solution in toluene of Al(iBu)3NaF as catalyst, (6) styrene oxide with (a) propylene oxide, (b) 2,3-butylene oxide using the catalyst of Example (5).
Patent GB-850230-A (GB)
Title: Method and apparatus for producing unbulked torque yarn
IPC: D02G1/02
Filed: 1956-09-21
Abstract: 850,230. Torque yarns; twisting machines, heating and moistening arrangements. SEEM, W. A., and STODDARD, N. J. Sept. 21, 1956 [Sept. 22, 1955], No. 28877/56. Classes 120(2) and 120(3). Monofilament, multifilament or staple fibre yarns having thermoplastic properties (including resin-treated non-thermoplastic yarns) have torque forces inserted without causing bulking. Running yarns are continuously twisted, heat-set, cooled and untwisted and bulking is avoided by having sufficient actual twist in the yarn to hold the filaments in a compact bundle and/or by falsetwisting to an extent insufficient to cause shrinking and bulking. Yarns capable of being cold drawn may be treated by applying tension adequate to draw while twisting and without greatly increasing the temperature of the yarn. After imparting torque, chemicals or sizing materials may be applied to reduce the liveliness of the yarns, e.g., a water solution of polyvinyl alcohol and boric acid with 5% of sizing, these materials being removed after the yarns have been converted to knitted or woven fabrics. The process may be carried out on a two-deck uptwister modified as described in Specification 803,106 with a tension device, false twist tube and heater on the top deck. The' lower deck may also be provided with a heater, the lower heater being energized when yarn is drawn from the false-twist spindle and the upper heater being energized when yarn is drawn from a stationary creel above the top deck. In one example, a 15 denier nylon yarn was twisted 7 turns per inch on spindles 11 rotating at 7,000 r.p.m., passed through tensioning and heating devices 13, 12 and a false-twist spindle 4 revolving in the opposite direction to the initial twist spindle at 23,000 r.p.m. and finally taken up at 1,000 inches per minute after further tensioning at a device 8. An emulsion trough 14 may contain a dye solution, a sizing liquid, or a thermal setting medium, such as urea formaldehyde resin, for application to basically non-thermoplastic yarns. Several ends of yarn may be' false-twisted at the same time and separated for use as individual ends. Specifications 773,816, 803,105, 803,107, 803,109, 803,110, 835,551 and 835,552 are referred to.
Patent GB-1416229-A (GB)
Title: Gastight alkaline accumulator
IPC: H01M10/34
Filed: 1973-06-18
Abstract: 1416229 Nickel-cadmium cells VARTA BATTERIE AG 18 June 1973 [19 June 1972] 28882/73 Heading H1B A gas-tight Ni-Cd cell comprises positive and negative plate groups both of which comprise a combination of paste electrodes and sintered electrodes. In Fig. 1 the positive plate group comprises sintered electrodes 3 and a paste electrode 4 connected by a connector 6 and the negative plate group comprises sintered electrodes 1 and a paste electrode 2 connected by a connector 7, the electrodes being spaced by separators 5. A button cell incorporating the plate groups of Fig. 1 is described with reference to Fig. 2 (not shown). In another embodiment (Fig. 3, not shown) the positive plate group comprises two sintered electrodes and two paste electrodes and the negative plate group comprises four sintered electrodes and a central paste electrode. The positive paste electrodes may include an antipolar mass and the negative electrodes may have a greater capacity than the positive electrodes.
Patent GB-289576-A (GB)
Abstract: 289,576. Bamford, W. Feb. 10, 1927. Printing yarns ; printing - surfaces.- In a machine for printing on hanks in which the hank is carried between printing-rollers by a pair of side chains, means are provided for supporting the hanks so that they are carried endwise between the rollers. The chains d pass round driving sprockets f, guide pulleys e, and adjustable pulleys e which form loops in the chains in front of and beyond the printing-rollers h, j, k. The printing-rollers and the shaft or the sprockets f are driven by a chain m from a shaft which can be connected by a clutch to a belt-driven pulley. The links of the chains d are provided with oval holes t to receive the ends of bars t' over which the hanks t<2> are looped. These bars are attached to the chains so that the hank loosely spans the left-hand loop in the chains and the machine is then started. As the chains travel forward the hank is tightened to an extent depending on the tension of the chains and passes in a taut condition between the printing-rollers. When the hank reaches the loop in the chains beyond the printing-rollers it again becomes slack and may be removed. The chains d are tensioned by - counter-weighted jockey pulleys g. Before being removed from the chain, the hanks may pass through a drying chamber. The printing-rollers comprise a number of longitudinal printing bars v, Fig. 4, separated by spacing bars w and clamped on a core u by end plates x. Different patterns can be printed by varying the grouping of the bars upon the core.
Patent GB-741597-A (GB)
Title: Improvements in or relating to electronic counter
IPC: H03K23/82
Filed: 1951-12-11
Abstract: 741,597. Electronic counting apparatus. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 11, 1951 [Dec. 21, 1950], No. 28975/51. Class 106 (1). An electronic counter comprises a series of bi-stable electrical triggers connected generally in cascade, an input and an output for the series, the output being effective under control of a select number of pulses applied to the input, and means for altering the number of pulses required at the input to produce an output, the altering means including only a single diode controlled by one trigger for operation by a pulse to selectively flip or not flip another trigger in accordance with the " On " or " Off " status of the controlling trigger. Specification 741,595 is referred to. In the described embodiment four Eccles- Jordan type trigger pairs are connected in cascade to form a decimal or duo-decimal unit. Initially all four triggers are in the " Off " status (R.H. side conducting). The first negative input pulse, applied to both grids of the first trigger T1, flips it " On ", and the second pulse flips it " Off " ; the resulting negative pulse appearing at terminal 21 is applied to the R.H. grid of the second trigger T2G, flipping it " On." The rise in potential at the terminal 23 is applied via a resistor R to the anode of a diode D10 whereby the next negative pulse to arrive at its cathode will cause it to conduct. This occurs when the fourth input pulse flips T1 " Off " again and a negative pulse passes to both grids of the third trigger T2, flipping it " On." The sixth input pulse also causes a negative pulse to be applied to both grids of trigger T2, this time flipping it "Off," and the resulting negative pulse from the R.H. anode is applied to both grids of the last trigger T4, tripping it " On." After the ninth input pulse all four triggers are " On "; the tenth pulse flips T1 " Off "; then via the diode D10, T2 is flipped " Off " and causes T4 to flip " Off." This last action provides a negative output pulse at the R.H. anode, and this is also applied via a connection 25 to flip the trigger T2G " Off." It will be seen that the "On" states of the triggers in the above example represent the values of 1, 2, 2, 4. An alternative arrangement in which the triggers represent values 1, 1, 2, 5 is also described. Duo-decimal arrangements in which the values represented are 1, 2, 4, 4; 1, 2, 2, 6 and 1, 1, 3, 6, are also described.
Patent GB-487122-A (GB)
Title: Improvements in or relating to electric light fittings
IPC: F21S8/00
Filed: 1937-10-23
Abstract: 487,122. Street lamps. ZEISS IKON AKT.-GES. Oct. 23, 1937, No. 29009. Convention date, Oct. 26, 1936. [Classes 75 (ii) and 75 (iv)] An electric-light fitting for road, pavement, and facade lighting consists of a number of lamps accommodated in a common housing each with a reflector R<1>, R<2>, or R<3> producing a field of illumination 1, 2, or 3 elongated in the direction of the road, the fields of illumination being parallel and only slightly overlapping, Fig. 1. The facade lighting 2 and 3 can be switched off leaving only the road illuminated 1. Reflectors R<1>, R<2>, R<3> may form a single body which may also consist of two symmetrical halves abutting against each other or spaced a little apart, Fig. 4, to allow room for the lamp holders. A sodium or mercury vapour or other source of light of great luminosity may be used for illuminating the roadway while sources which do not give the colour distortions of the latter may be used for lighting the facades and pavements. Specification 318,147, [Class 75 (ii)], is referred to.
Patent GB-1236018-A (GB)
Title: Carbon filament production
Inventor: TOWNSEND BRUCE ARNOLD
IPC: D01F9/16
Filed: 1967-06-23
Abstract: 1,236,018. Carbon fibres. COURTAULDS Ltd. 22 Aug., 1968 [23 June, 1967], No. 29030/67. Heading C1A. Carbon filaments are produced by a process comprising passing organic filaments, or such material which has been subjected to a prior heat treatment, continuously through a heat treatment zone consisting of a series of compartments 11a-11d, each compartment being at a higher temperature than the preceding one, the overall direction of travel of the filaments being in the direction of increasing temperature, and the direction of travel in each compartment being substantially at right angles to the direction of increasing temperature. In a first stage the filaments are heated slowly to a temperature in the range 200‹ to 300‹ C. and preferably maintained at that temperature for ¢ to 4 hours, the heating being carried out in air, air/ oxygen, or nitrogen. This may be carried out in a heat treatment zone having the compartments 11a 11b, 11c and 11d at approximately 200‹ C., 235‹ C., 270‹ C. and 300‹ C. respectively, the filaments remaining in compartment 11d for at least ¢ hour. In a second stage the filaments are heated from 300‹ C. to at least 1000‹ C., and preferably maintained at that temperature for ¢ to 4 hours. This may be carried out in a heat treatment zone in which the compartments 11a 11b, 11c and lid are maintained at 300‹ C., 550‹ C., 800‹ C. and 1000‹ C. respectively, the filaments remaining in compartment 11d for at least ¢ hour. This second stage may be carried out in the same heat treatment zone as the first stage if an inert atmosphere is used in the first stage. The filaments may be graphitized in the same heat treatment zone as that of the second stage by heating to a temperature of 2000‹ C., preferably at least 2500‹ C. and maintaining them at that temperature for at least ¢ hour, preferably ¢ to 4 hours. In Fig. 1, a single filament, or a bundle of filaments, is wound round two carbon rollers 7 and 8 which are slightly inclined to one another and one or both of which are driven. In a further apparatus described (Fig. 2, not shown) a plurality of filaments are fed in parallel around a series of vertical rollers. The filaments may be cellulosic, polyester or polyacrylonitrile.
Patent GB-340305-A (GB)
Title: Improvements in and relating to a caoutchouc mixture or rubber leather imitation
IPC: C08L7/00
Filed: 1929-09-25
Abstract: A rubber composition or artificial leather consists of an admixture of rubber and ground herbaceous vegetable material such as straw powder in for example equal proportions by weight.  The admixture is made in the absence of solvents.