baber/WOPTO huggingface dataset:
Patent GB-1275720-A (GB)
Title: An electric heater
Inventor: EILHARDT BERND
IPC: F24D13/02
Filed: 1970-03-09
Abstract: 1275720 Storage heater KABEL UND METALLWERKE GUTEHOFFNUNGSHUTTE AG 9 March 1970 [14 March 1969] 11195/70 Heading F4U [Also in Divisions H3-H5] An electric heater comprises embedded in a cast material 4 a heating mat similar to that disclosed in Specification 1,182,529 formed by attaching a metal sheathed, helically corrugated, longitudinally seam welded resistance heating element 1 in meander fashion to metal bands 2, one side of the heater so formed being provided with a layer 3 of thermally insulating material. The heater may be attached by brackets 5 to a vertical wall with the thermally insulating layer 3 adjacent the wall or may be laid as a floor heater. The heater is manufactured by pouring about two-thirds of a casting composition, e.g. a synthetic resin or floor surfacing composition into a flat mould, laying the heating mat 1, 2 on this cast composition and covering it with the remaining casting composition. When the composition 4 has set polyurethane foam heat insulation 3 and the brackets 5 are applied. The heater may be used to heat ceilings, roads or runways. If the layer of cast material 4 is made sufficiently thick, a storage heater is formed.
Patent GB-800740-A (GB)
Title: Aircraft lightning arrester
IPC: H01Q1/50
Filed: 1956-04-12
Abstract: 800,740. Lightning arresters. JOSLYN MFG. & SUPPLY CO. April 12, 1956 [May 10, 1955], No. 11200/56. Class 38 (4). [Also in Group XXXVI] In an enclosed aircraft lightning arrester of the combined spark-gap condenser type, the arrester is hermetically sealed in an outer casing 14, Fig. 2, surrounding a circular housing comprising cup-shaped members 33, 34, 37, 38 and terminal bushings 21, 22. The spark-gap electrode 44 is fixed to the annular fuselage mounting ring 12, and inner electrode 45 is mounted on outer electrode 63 of condenser, which is connected to terminal 21c through screwed bush 73a and spring 74. The other condenser electrode is formed by an assembly of wire rods 58, Fig. 3, mounted on a circular carrier 57 and supported by a rod 53 in dielectric housing 59 and connected to terminal 22c through stem 41a. A leakage resistor is incorporated consisting of a hollow cylinder 70 interposed between condenser electrode 63 and bush 52c which is connected to terminal 22c. An equivalent circuit of the combination is shown in Fig. 7 and consists of antenna 5, spark-gap 17, and condenser 63 shunted by resistor 70 connected in series between communication equipment 6 and antenna 5.
Patent GB-762089-A (GB)
Title: Improvements in or relating to creels
IPC: D02H1/00
Filed: 1953-04-23
Abstract: 762,089. Creels. CROWTHER, Ltd., KIMBER, R. A. and COLEMAN, P. E. R. July 23, 1954 [April 23, 1953], No. 11232/53. Class 142 (1). A creel has its bobbin pegs disposed on a curve (in plan view) and has a concentric frame 17 carrying electrical stop motion detectors 43 and signal lamps 41, each of which is common to a group of detectors. The detector frame can be moved away from the bobbin frame by turning a handle 31 coupled to lead screws housed in rails 27 on which the detector frame runs; the whole creel base 12 is also on wheels. Alternate bobbin pegs are mounted directly on pillars 11, and the intervening ones are on arms 16 swingable as indicated for replenishment. In another construction, the bobbin frame and the detector frame both run on the floor, but are stillinter-connected by the lead screws. The stop motion controls the warping or other machine fed by the creel.
Patent GB-693435-A (GB)
Title: Improvements in or relating to radio antenna arrangements
Inventor: CHARMAN FREDERICK JOHN HENRY
IPC: H01Q9/18
Filed: 1950-05-06
Abstract: 693,435. Aerials. ELECTRIC & MUSICAL INDUSTRIES, Ltd. May 7,1951 [May 6, 1950], No. 11259/50. Class 40 (vii). In a dipole aerial arrangement in which one of the dipole elements is arranged as a sleeve round a coaxial feeder centrally feeding the antenna, dielectric material is included in the space between the sleeve and the outer conductor of the feeder so that the rejector circuit formed by said sleeve and conductor is resonant at the resonant frequency of the dipole elements. The dipole elements may have similar electrical characteristics so that the plane containing the maximum of the aerial polar diagram is symmetrical with respect to the elements. The dipole elements 1, 2 may be tubes of equal diameter and fed by a coaxial line 6, 7 led through the element 2 with the outer conductor 6 attached to element 2 as by a metal insert 8 and the inner conductor connected to the adjacent end of tube 1 by a conducting link. The tube 1 may be hollow and closed by an insulating plug 4 or may be made solid. In operation the inside of the element 2 and outside of the cable 6 should form a quarter wavelength line and present a high impedance to currents which would otherwise flow from the conductor to the outside of the cable. However, the dipole elements need to be less than a free space quarter-wavelength long for resonance and, moreover, the insert 8 may be of substantial length for purposes of rigidity so that the line 2, 6 will physically be less than the required quarter electrical wavelength. To compensate for this a block of dielectric material 9 may be inserted in the open end of the line to produce the required electrical length. If the antenna is designed for use at two slightly differing frequencies the annular space is tuned to one frequency and one or two earthing bars 14 provided tuned to the second frequency.
Patent GB-358954-A (GB)
Title: Improvements in the recuperation of the oxides of nitrogen in the manufacture of sulphuric acid
IPC: C01B17/84
Filed: 1930-04-09
Abstract: Sodium and other alkali nitrates and nitrites.--The residual nitrous gases from the lead chambers in sulphuric acid manufacture are allowed to attain a degree of oxidation which corresponds to the presence in the gas of nitric oxide and nitrogen peroxide in equimolecular proportions before being absorbed in sulphuric acid. The gases unabsorbed by the sulphuric acid treatment may be absorbed in a solution of sodium or other alkali carbonate or bicarbonate, a mixture of nitrate and nitrite being formed.  The state of oxidation of the nitrous gases leaving the chambers may be controlled by regulating the supply of nitrous acid to the Glover tower.  Nitrous gases from the chambers are introduced tangentially through f into an inner cylindrical chamber a, rise in a helical path through a mist of sulphuric acid introduced by an atomizer d and redescend in an outer concentric cylindrical chamber b, being freed from acid mist by passage through a porous wall c, c<1>, c<11> and passing out tangentially through g.  Any unabsorbed nitrous <PICT:0358954/III/1> gases are introduced tangentially through o into a vessel l, which is sprayed by an alkaline solution from atomizer m, and pass out tangentially through p.  The nitrated acid collecting at the bottom of the vessel a passes into a tank j and is pumped into a tank k from whence it is returned to the Glover tower.
Patent GB-670776-A (GB)
Title: Improvements in harmonicas
IPC: G10D7/12
Filed: 1948-04-23
Abstract: 670,776. Harmonicas. WEST, J., and BROOKSBANK, J. July 6, 1948. [April 23, 1948] No. 11279/48. Class 88 (ii). The body A of a harmonica comprising blow holes 4, chambers 6, reed slots 7 and dove-tail grooves 8 is moulded as a unitary structure in one operation. The material used is preferably a synthetic resin or similar plastic of which the reeds are also made. The reeds are moulded as single reeds 9, 10 integral with dove-tail heads which are a sliding fit into the grooves 8 of the body, the draw reeds 9 and blow reeds 10 having the reed blade in line with the narrow and the wide face of the head respectively.
Patent GB-327580-A (GB)
Title: Improvements relating to the manufacture of teapots and like articles of pottery
IPC: B28B3/02
Filed: 1929-04-12
Abstract: 327,580. Coulter, W., and Wood, H. F. April 12, 1929. Moulding hollow-ware. - Tea-pots &c. are formed by bringing together moulded halves of the article within complementary dies which are reciprocated relatively to one another to knead together the adjacent edges. As shown, the halves of the article are supported respectively in a lower die a carried by a slide b reciprocated by an eccentric b<3>, and an upper die d balanced by a weight attached to a cord d<3> and adapted to be lowered in proximity to the die a by a handwheel d<5>. Stops limit the descent of the die d to avoid undue pressure. In operation, the moulded halves, preferably made as described in Specification 327,579, are inserted into the dies a, d and the edges smeared with slip, and the die d is lowered and the slide b reciprocated to weld the edges. After this operation. the eccentric is disconnected through a hand lever g controlling a double clutch g<1> and the 'dies are centred by a tapered pin e<1> recessed to engage a corresponding notch in the slide b through a hand lever e, lever e<2>, and link e<3>. The hand lever e also actuates through bevel gear e<5>, e<6> a tool f to finish the spout. The mouth is trimmed by a rotary tool h which is rotated through a drive h<3> and the clutch g<1>. A lever h<2> actuated from the spout tool through a compression spring h<1> advances the tool h.
Patent GB-805190-A (GB)
Title: Improvements relating to cases for pairs of binoculars or field glasses or like instruments
IPC: G02B23/18
Filed: 1957-04-08
Abstract: 805,190. Binocular cases. VALETTE, P. P. A. April 8, 1957 [April 10, 1956]. No. 11378/57. Class 97(1) A case for binoculars comprises a flexible one-piece body consisting of two symmetrical halves 1, Fig. 1, having oppositely directed side straps 2a, 2b which, after the halves have been folded each round one of the barrels of the binoculars, Fig. 2, so as to enclose them are passed through slots 3a, 3b in the body and attached at their ends to the back thereof, for example by press studs 4a, 5a, 4b, 5b. End pieces 10, 11 may be secured to the body which, when the case is closed are held together by clips 12, 13. A carrying strap 14 passing through slots 16a, 16b in the body and attached directly to the binoculars. By this arrangement the binoculars may be used without removing them from the case and may be adjusted about their central hinge.
Patent GB-695909-A (GB)
Title: Improvements in apparatus for measuring recording or controlling ph
Inventor: CHALMERS COLIN
IPC: G01N27/416
Filed: 1951-05-15
Abstract: 695,909. Electromagnetic interrupters. KENT, Ltd., G. May 15, 1951, No. 11379/51. Class 38(v) [Also in Group XXXVI] A coil A surrounds a core in the centre of a cup S closed at its upper end by an apertured plate Q, the core, plate, and cup constituting the magnetic system B. The armature is mounted on a diaphragm D and transmits its motion to the contact assembly by means of a pivot-ended pin E. The contact assembly consists of a polystyrene plate F carrying the movable rare metal contacts and is supported by two flexible diaphragms G, H. The fixed contacts I, J, also of rare metal, are mounted on polystyrene supports K, L forming a closed cylindrical box. Adjustment is effected by movement of the upper contacts J and a screw M bearing against the pin E. Specification 678,648, [Group XXXVI], is referred to.
Patent GB-964405-A (GB)
Title: Improvements in electric circuit interrupters
IPC: H01H33/664
Filed: 1963-03-22
Abstract: 964,405. Vacuum switches. GENERAL ELECTRIC CO. March 22, 1963 [April 3, 1962], No. 11391/63. Heading H2B. In a vacuum switch the fixed and moving contacts 24, 20 are surrounded by annular arc runners 17, 18 respectively and consist of cupshaped members mounted upon rods 17a, 21, respectively, which make contact with the base portions 44, 40 of the contacts only. Inserts 60 of relatively high resistance stainless steel in the ends of the copper rods serve to produce magnetic loops to aid arc blow out. The arc roots are initially driven out along the skirts 46, 42 of the contacts and are thereafter transferred to the arc runners 17, 18. It is then driven round the runners by magnetic forces set up by a plurality of skewed slots 70 therein. The arc runners 17, 18 are preferably of copper and the contacts of copper-bismuth or copper-lead or like alloys. Conducting screens 15, 75, 76 are mounted in the evacuated envelope to prevent deposition of metal particles, ejected from the contacts during arcing, on the insulating portion 11 of the envelope or upon a bellows 29 forming a seal between the rod 21 and the envelope.
Patent GB-961003-A (GB)
Title: Improvements in or relating to cabinets for storing heated foodstuffs
Inventor: BROWN EDWARD JAMES
IPC: A47J39/02
Filed: 1963-03-22
Abstract: 961,003. Hot closets. REGIONAL MANUFACTURING CO. Ltd. March 22, 1963, No. 11436/63. Heading F4W. [Also in Division A4] The burner 12, which heats the under-side of the floor 5 of a food-warming compartment, also heats pipe 11 to provide a circulation of heated water to well 7. The burner 12 is connected to the gas supply through control valve 16 and has a flush ignition tube 13 and an observation mirror 15. Deflector 14 provides a more even distribution of heat over floor 5.
Patent GB-1030839-A (GB)
Title: Improvements relating to day-running compressors more particularly such a have labyrinth pistons
IPC: F04B39/04
Filed: 1965-04-09
Abstract: 1,030,839. Pistons; cylinders. LINDE A.G. April 9, 1965 [April 9, 1964], No. 11440/65. Heading F2T. In a dry-running compressor comprising a piston reciprocable in a cylinder having admission and delivery valve slots in the cylinder wall immediately adjacent the cylinder cover, in order to eliminate or reduce the pressure differential forces acting on the piston perpendicular to the cylinder axis and in the direction of the delivery valve slot when the piston is nearing or at the end of its compression stroke, the face of the piston head and/or the face of the cylinder cover is/are bevelled off substantially from the centre of the piston or cylinder to the side towards the delivery valve slot. The bevel may be planar or conical. The piston has labyrinth sealing grooves on its periphery. " Dry-running " is defined in the Specification as meaning that the piston is not lubricated.
Patent GB-1276457-A (GB)
Title: Improvements in or relating to the temperature regulation of high pressure synthesis reactions
IPC: B01J8/04
Filed: 1970-03-10
Abstract: 1276457 Temperature control of catalytic ammonia synthesis OSTERREICHISCHE STICKSTOFFWERKE AG 10 March 1970 [18 March 1969] 11495/70 Heading B1X Temperature control of catalytic ammonia synthesis is achieved by introducing fresh cold synthesis gas into the reacting hot gases substantially at right angles to the general direction of flow of the at a velocity of at least 0.5 m/sec.
Patent GB-1106451-A (GB)
Title: Improvements in or relating to maximum and minimum thermometers
Inventor: ZEAL RAYMOND OAKLEY
IPC: G01K5/20
Filed: 1964-03-18
Abstract: 1,106,451. Maximum and minimum thermometers. G.H. ZEAL Ltd. March 17, 1965 [March 18, 1964], No. 11504/66. Heading G1D. A maximum and minimum thermometer comprises a base 10, a thermometer tube 19, 20, separate maximum and minimum scales 24, 23, and bridges 11, 12 arranged to be held on the base in a slack position, in which either scale can be moved for adjustment, or in a tight position, in which each scale is clamped against movement. The transverse bridge 11 is formed of moulded plastics material with a central boss 15 for receiving a clamping screw 13 passing through the rear of the body 10. The walls of the bridge are apertured to allow passage of the tubes 19, 20 which rest on resilient pads 21, 22. Another transverse bridge 12 is mounted at the lower end of the tubes and also has a central boss 25 for receiving a clamping screw 14. The scales 24, 23 are slid under the sides of the two bridges and the thermometer calibrated, the scales being movable into the correct position before the  clamping screws 13, 14 are tightened to hold the scales in place.
Patent GB-816230-A (GB)
Title: Improvements in the vulcanisation of aqueous dispersions of rubber
Inventor: KEMP IAN
IPC: C08J3/28
Filed: 1956-04-16
Abstract: Aqueous dispersions of rubber are vulcanized by exposure to a radiation dosage of between 1 and 60 megarads.  The radiation may consist of fast electrons, gamma rays, or the mixed radiation from an atomic pile, and the aqueous dispersion may be natural rubber latex containing 60 to 70 per cent of rubber.  In examples are described the physical properties of rubber films obtained by drying vulcanized latices prepared by placing samples of latex in a shallow aluminium trough covered with aluminium sheets and exposing them for various periods to a beam of high-energy electrons from an electron accelerator.  According to the Provisional Specification oxygen is excluded from the latex during the irradiation treatment.  Nitrogen or other inert gas is bubbled through the latex, and any residual bubbles removed by centrifugal action before irradiating the latex in an atmosphere of nitrogen or other inert gas.ALSO:Aqueous dispersions of rubber are vulcanized by exposure to a radiation dosage of between 1 and 60 megarads.  The radiation may consist of fast electrons, gamma rays, or the mixed radiation from an atomic pile, and the aqueous dispersion may be natural rubber latex containing 60 to 70 per cent of rubber.  In examples are described the physical properties of rubber films obtained by drying vulcanized latices prepared by placing samples of latex in a shallow aluminium trough covered with aluminium sheets and exposing them for various periods to a beam of high energy electrons from an electron accelerator. According to the Provisional Specification oxygen is excluded from the latex during the irradiation treatment.  Nitrogen or other inert gas is bubbled through the latex, and any residual bubbles removed by centrifugal action before irradiating the latex in an atmosphere of nitrogen or other inert gas.
Patent GB-1312682-A (GB)
Title: Apparatus and method for purifying alkali metal hydroxide solutions
IPC: C01D1/40
Filed: 1970-03-11
Abstract: 1312682 Electrolytically purifying alkali metal hydroxide solutions PPG INDUSTRIES Inc 11 March 1970 [11 March 1969] 11561/70 Heading C7B Metal ion contaminants are electrolytically removed from an aqueous alkali metal hydroxide solution by passing the solution through a porous cathode of a cell so as to deposit the metal ion contamination in the cathode. There is an anode downstream of the cathode and, after passing the cathode and anode pair, the solution is withdrawn from the cell, without being subjected to further electrolysis in the presence of another electrode. For example the quantity of contaminating ions such as Fe, Ni, Cu, Mn, Ca, Mg, Al, Cr, Pb, V, Mo, Ti, Be, Zr, W, Sn, Hg, Sr or Ba can be reduced in solutions of NaOH, KOH or LiOH. The porous cathode may be of graphite, Ni, Ni alloys, Zr, Mo, Ag, steel cast Fe, Cr plated steel or W. The porous cathode, when it has the contaminant metals deposited therein, can be regenerated electrolytically by reversing the polarity of the electrodes and using as electrolyte alkali metal hydroxide, NaCl, KCI, LiCl, NH 4 OH, HCl, H 2 SO 4 , HNO 3  H 3 PO 4  or H 2 CrO 4  so as to remove the contaminating metal. Fig.1, (not shown) illustrates apparatus wherein NaOH feed liquor is passed through a cylindrical cell (1) firstly through a porous disc graphite cathode (4) and then through a Ni screen anode (3). Fig. 2 shows a cell where alkali metal hydroxide solution is passed through an inlet 42, through blind-end cylindrical porous graphite cathodes 31 mounted in an impervious graphite sheet 32, past nickel tube anodes 33 welded shut at their lower ends and welded or screwed at their upper ends into an iron cover 34, and out of the cell through an exit pipe 43. The cell comprises a steel cylindrical body, a steel bottom and is rubber lined on it interior. In modification of the cell shown in Fig. 2, there may be only one or more than seven cathodes. Reference has been directed by the Comptroller to Specification 1169206.
Patent GB-945535-A (GB)
Title: Improved imitation solid fuel
IPC: F24C7/00
Filed: 1962-05-03
Abstract: 945,535. Imitation fuel. H. J. FREEMAN. Aug. 9, 1962 [May 3, 1962], No. 11566/62. Drawings to Specification Heading F4W. Imitation coal or logs comprises fibre glass, synthetic plastic, linen or fine wire mesh which is moulded to the required shape and impregnated or coated with a luminous red pigment. The imitation fuel may also be treated with black or grey paint, and is incorporated in an electric fire or mounted on a tray whereby it may be inserted into an open grate.
Patent GB-829070-A (GB)
Title: Improvements in the manufacture of silica glasses
IPC: C03C3/06
Filed: 1958-04-11
Abstract: 829,070. Silica glasses. QUARTZ & SILICE. April 11, 1958 [April 12, 1957], No. 11576/58. Addition to 783,244. Class 56. Silica glass made by the method of the parent Specification is utilised in the construction of articles for use in high energy physics or in nuclear technique. In particular it is used for observation windows, ampoules or like containers to be irradiated in an atomic reactor and for optical assemblies in nuclear technique, the visible spectrum.
Patent GB-961772-A (GB)
Title: Electromagnetic friction or jaw clutch
Inventor: KREJCI VACLAV
IPC: F16D27/112
Filed: 1962-03-27
Abstract: 961,772. Clutches. PREROVSKE STROJIRNY, NARODNI PODNIK. March 27, 1962, No. 11621/62. Heading F2C. An electromagnetically engaged friction or positive clutch is disengaged by helical springs 3 inseterd in axial bores 2 in an axially fixed driven part 1 and reacting against an axially slidable driven clutch part 4. The springs are of the same length but the bores 2 are of different depths so that the springs successively cease to act on the part 4 during disengagement of this part from the driving part 8. The spring pressure is thus sufficient to ensure disengagement of the clutch when the electromagnet 9 is de-energized, and the reduction in pressure acting on the part 4 when fully disengaged does not require the electromagnets to be unduly powerful in order to re-engage the clutch. Pairs of bores 2 of equal depth may be disposed at diametrically opposite locations to prevent any tendency of the part 4 to twist on the part 1, or the bores may be arranged in threes or more symmetrically disposed.
Patent GB-831546-A (GB)
Title: Improvements in or relating to lenses
IPC: G02C7/04
Filed: 1957-04-09
Abstract: 831,546. A bifocal contact lens. DE CARLE, J. T. April 9, 1958 [April 9, 1957], No. 11626/57. Class 97(1) The contact lens has one zone 1 adapted to correct for "distance" vision and another zone 2 adapted for "reading" vision, the latter occupying the outer part of the lens. The area of the central zone occupies approximately half the average area of the pupil 7 and the area of the whole lens is slightly larger than the largest area of the pupil. A third zone may be introduced between the other two to correct for vision at about one metre from the eye.