baber/WOPTO huggingface dataset:
Patent GB-746176-A (GB)
Title: Improvements in or relating to line time base circuits particularly for television receivers
Inventor: MARTIN KENNETH EDWARD
IPC: H04N3/18
Filed: 1952-08-26
Abstract: 746,176. Saw-tooth generating circuits. MULLARD RADIO VALVE CO., Ltd. July 31, 1953 [Aug. 26, 1952], No. 21488/52. Class 40(6). In a line time-base generator of the type in which an efficiency diode and an H.T. boost capacitor are connected across an inductive output circuit of the generator, the cathode bias resistor of the output valve has a negative temperature coefficient so that its value varies inversely with the current through it. This prevents excessive screen grid current flowing before the efficiency diode cathode has warmed up sufficiently to provide the H.T. potential for the output valve anode. Additional protection can be provided by making the resistor such that when hot it still provides too much bias and by backing off this bias with a voltage obtained from the boost condenser 3 when it charges up. Specification 746,175 is referred to.
Patent GB-441853-A (GB)
Title: Improvements in or relating to knitting machines
IPC: D04B9/04
Filed: 1934-07-23
Abstract: 441,853. Knitting. STIBBE & CO., Ltd., G., 9, Newarke Street, Leicester.-(Wildman Manufacturing Co. ; Norristown, Pennsylvania, U.S.A.) July 23, 1934, No. 21512. [Class 74 (ii)] In a knitting-machine having individually operable spring beard needles, individually movable pressers having differently positioned butts are selectively operated by a series of presser cams, one for each presser butt position, individually movable to and from an operative position. Pressers 1 retained in position by a spring band 8 engaging a groove 5b, and having differently positioned butts 2, are selectively rocked about a similar band 9 for tuck patterning, by cams 4 projected to an operative position by coacting inclines 4a, 44a on themselves and on manually operated slide bars 44, having heads 44b, 44c of different length for engagement by a suitable instrument. A presser cam 10 may be projected by hand, or by mechanical means, and held in position by a lever 11, to act on all beards and nullify the selective action of cams 4. A small bellcrank lever 19 can be engaged with a head 15a carried by the plunger 15 which projects the cam 10, in order to prevent accidental pushing- in of the cam. The needles 6, Fig. 2, may be long or short butted and cams 20, 21, may be made to slide radially by rotating knobs 25, causing cam faces 25a to project the cams against the action of springs 24. Thus, cam 21 can be set to act on long butts only or both long and short butts, whilst cam 20 can be made inoperative or set to act on long butts only. Miss-stitch or float effects may be produced by this means. Means is provided to limit the travel of the cams. The pressers may be provided with the full complement of butts, those not required being broken off. Means may be arranged to release the cam 10 in the event of a yarn breaking or running out, so as to prevent pressing-off. The needle cylinder is higher than usual, the pressing being done below the sinker ring. Specification 188,449, [Class 74 (ii)], is referred to.
Patent GB-1079775-A (GB)
Title: Improvements in or relating to fluid-pressure operated electric switches
Inventor: ROSCROW JAMES BUCKLEY
IPC: H01H35/34
Filed: 1965-05-21
Abstract: 1,079,775. Fluid actuation of switches. WARD & GOLDSTONE Ltd. April 28, 1966 [May 21, 1965], No. 21543/65. Heading H2B. A rubber diaphragm 10 has an inturned continuous lip 11 secured between the upper rectangular insulating moulding 5 of the housing and a steel or plastics inner cap 12, the latter having a raised edge 16 engaging the lip 11. The diaphragm 10 is held in position by a nut 15 mating with a threaded fluid inlet 13 of the cap 12. Diaphragm 10 carries a stud 17 frictionally receiving one limb of a metal stamped angle bracket 18 that actuates the contacts on fluid pressure from inlet 13, or, alternatively, diaphragm 10 carries a rigid stud (19, Fig. 2) and disc (20) cemented thereto. The lower moulding 6 is bolted to the moulding 5.
Patent GB-887628-A (GB)
Title: Parametric amplifier
IPC: H03F7/04
Filed: 1960-06-20
Abstract: 887,628. Parametric amplifiers. HUGHES AIRCRAFT CO. June 20, 1960 [June 25, 1959], No. 21615/60. Class 40 (9). A parametric amplifier comprises a non-linear capacitance device fed by pump and signal energy respectively over two transmission means which are provided with filters for preventing the propagation of idler energy either to the signal output or the pump input, and for preventing pump energy from reaching the signal output. As shown schematically in Fig. 1, signal energy is supplied to and extracted from a circulator 14 via a tuning section 15 and a T-section 16 to a filter 17 and a phase-adjuster or " linestretcher " 18 to a further T-junction 21 whence the energy is supplied via a further phaseadjuster or line stretcher 38 to a crystal diode 37. Pump energy is also supplied to the crystal diode from a source 26 via an isolator 27, a timer 28, a filter 29 and phase shifter or line stretcher 31. In the case of signal, pump and idler frequencies of 2.5, 6 and 3.5 Gc/s. respectively, filter 17 is a low-pass filter of cut-off frequency 3 Gc/s. and the filter 29 is a high-pass filter of cut-off frequency 4 Gc/s. If the pump frequency is 3 Gc/s. with signal and idler frequencies 2.5 and 3.5 Gc/s., then filter 17 is still of the low-pass type and filter 29 is of band-pass type, the pass-band being centred on the pump frequency. The line stretcher 31 is adjusted so that signal energy reflected from the filter 29 reinforces that arriving directly at the T-junction 21. The line stretcher 18 is similarly adjusted in respect of reflections of the pump energy from the filter 17. Stretcher 38 is adjusted to ensure that the portion between the diode 37 and the filters resonates at the correct idler frequency. Bias for the diode is provided via a low-pass filter 42, so arranged to produce infinite impedance across the line 16 at signal frequency. A more detailed construction is given for the case where the transmission lines are coaxial lines, including a method of mounting the diode, Fig. 4. The central conductor 68 is tapered towards the diode 61, for impedance matching purposes. The cap 64 is similarly tapered internally and is provided with an end portion 71 for terminating the other end of the diode.
Patent GB-221827-A (GB)
Title: Improvements in or relating to apparatus for atomising liquids
IPC: F02M19/03
Filed: 1924-09-12
Abstract: 221,827. Wade, H., (Naamlooze Vennootschap Hollandsche Ijzerhandel). Sept. 12, 1924. Air-pressure sprayers. - An atomizer of the kind in which air or gas supplied through a central nozzle 1 atomizes liquid fed to an annular chamber 2 is provided with a thin diaphragm having an aperture 3 mounted in front of the nozzle between the chamber 2 and one or more mixing chambers 4 provided with one or more openings 5 opposite the nozzle. The nozzle body 6 is provided with connections 7 and 8 for the atomizing gas and liquid respectively and is formed with a chamber at its forward end within which is mounted an air nozzle 1 and a perforated diaphragm 3. A chamber 4 is retained on the body by means of a sleeve 17. Helical grooves 19, 20 may be cut in the nozzle and chamber 2 respectively. The atomizer may be mounted in the indication pipe of a group of cylinders of an internal combustion engine between the throttle and inlet valves.
Patent GB-419395-A (GB)
Title: Improvements in or relating to presses particularly for moulding plastic material
IPC: B30B1/18
Filed: 1933-08-01
Abstract: 419,395. Control of motors. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and KAULA, R. J., Witton Moulded Insulation Works, Witton, Birming- ham. Aug. 1, 1933, No. 21619. [Class 38 (iii).] Travelling to predetermined limits.- A motor 38 is controlled by a clockwork switch 69. When the clockwork is released, it moves the arm 70 from the position shown, in a counter-clockwise direction until it contacts with the plate 67 and remains in contact therewith foi a definite interval during which the motor runs forwardly. After leaving the plate, the arm continues its rotation until it contacts with the stud 68 and then stops. The motor is stopped when contact with the plate 67 is broken and is re-started in the reverse direction when contact is made with the stud 68. This rotation continues until stopped by a limit switch operated by the movement of the machine driven by the motor.
Patent GB-460890-A (GB)
Title: Improvements in or relating to means for illumination comprising luminescent materials
IPC: C09K11/02
Filed: 1935-07-30
Abstract: 460,890. Discharge lamps. GENERAL ELECTRIC CO., Ltd., RANDALL, J. T., and RYDE, J. W. July 30, 1935, Nos. 21652 /35, and 13818/36 (divided application). [Class 39 (i)] A lamp comprises an electric discharge which excites a luminescent material that provides the greater part of the light and is confined to a surface which does not substantially surround the discharge, so that there is a solid angle which is a substantial fraction of 4# within which the primary light emerges without incidence on the luminescent material ; the efficiency exceeds 1À2 2 candle /watt in the direction of maximum candle-power and at least two-thirds of the light in this direction is emitted by the luminescent material. The reduced absorption of this portion of the light by the luminescent material itself results in a greater efficiency than that of lamps entirely surrounded by luminescent material. A tubular lamp containing mercury and argon is coated internally over one half its surface with zinc or cadmium silicate so that the coating subtends on a solid angle of 2# at the axis. The coating may 'be backed by a reflecting silver layer. A small amount of a second luminescent material such as zinc phosphate or calcium tungstate, modifying the colour of the emitted light, may be distributed uniformly round the discharge. Specifications 9990/06, [Class 39], 4098/10, [Class 39 (i)], 401,846, [Group XI], and 431,408 are referred to. According to the second Provisional Specification, the main luminescent material may be deposited on a semicylindrical body introduced into the envelope ; the second luminescent material may be on the envelope or on a similar semi-cylindrical body not covering the first.
Patent GB-744756-A (GB)
Title: Improvements in or relating to prestressed concrete floor, roof and like structures
Inventor: HARRIS ALAN JAMES
IPC: E04B5/14
Filed: 1952-08-28
Abstract: 744,756. Floors, roofs and beams. GILBERT-ASH, Ltd., and PRE-STRESSED CONCRETE CO., Ltd. Aug. 24, 1953 [Aug. 28, 1952], No. 21656/52. Class 20(4). A method of assembling a prestressed concrete grillage for a floor or roof comprises erecting prestressed primary beams in parallel relation. ship and thereafter fitting between the primary beams and at right angles thereto, aligned elements 2, Fig. 1, which coact with parts of the primary beams to form secondary beams, the latter being prestressed after being placed in position. Each primary beam comprises a number of elements 1 with end units 3, each element 1 having an upper boom 5, a lower boom 6 and spacing members such as 7, 9. The lower boom 6 has channels 10, 11 to receive high tensile wires which are stretched and anchored at their ends. Each secondary beam element 2 comprises an upper boom section 12, a lower boom section 13 and spacing members 14, 15, 16, the boom section 13 having channels 17, 18, to receive high tensile wires which pass through apertures in the primary boom sections 6. Each secondary beam has end units 4. When the grid has been assembled, thin square deck elements 20, Fig. 7, are supported on the upper boom sections 5, 12, the elements 20 having a plane upper surface and a slightly domed undersurface 21. A finishing screed may be applied on the deck elements.
Patent GB-1198221-A (GB)
Title: Pyridine Derivative
Inventor: CAREY JOHN GERARD
IPC: C07D213/48
Filed: 1968-05-08
Abstract: 1,198,221. Pyridylacrolein. IMPERIAL CHEMICAL INDUSTRIES Ltd. 26 Feb., 1969 [8 May, 1968], No. 21720/68. Heading C2C. The novel compound #-(4-pyridyl)-acrolein is prepared by reacting pyridine-4-aldehyde with acetaldehyde, preferably in aqueous solution in the presence of a basic catalyst such as an ion-exchange resin.
Patent GB-500480-A (GB)
Title: Improvements in or relating to the manufacture of tubular glass envelopes containing fluorescent material for modifying the spectrum of gaseous discharge tubes
IPC: C09K11/02
Filed: 1937-08-07
Abstract: 500,480. Glass manufacture; discharge lamps. SOC. ANON. HOLOPHANE, and MAULER, J. A. Aug. 7, 1937, No. 21791. Convention date, Aug. 12, 1936. [Class 56] [Also in Group XL] A tubular glass envelope adapted to contain fluorescent material for modifying the spectrum of a gaseous discharge is made by drawing, blowing or moulding a blank 1, which is moulded beforehand on a press including inner and outer cylindrical cores 7, 11, the outer core being annular and broken by gaps 13 extending longitudinally from one end, whereby segmental recesses are forming in the blank for the reception of fluorescent material. The glass is contained in the conical mould 9, the inner and outer cores being subjected to the pressure of keyed lever 8 and press-plate 12 respectively. While the glass is still pasty the fluorescent materials are poured into the recesses and the blank is then taken up on a blowpipe and drawn; at the same time further layers of glass may be deposited on the outside of the blank, particularly) a diffusing layer of opal glass. The blank may be of glass absorbing very short ultra-viotet radiation which impairs the fluorescence. The Specification as open to inspection under Sect. 91 states that the blank may be twisted during working, and that a different fluorescent paste or powder may be poured into each recess. This subject-matter does not appear in the Specification as accepted.
Patent GB-206599-A (GB)
Title: Improvements in combing machines
IPC: D01G19/16
Filed: 1922-08-11
Abstract: 206,599. Jolly, J. Aug. 11, 1922. Combing-machines. - The nipper-frame is pivoted upon a frame centred on the cylinder shaft. The frame B, Figs. 2 and 6, is provided with bearings b to support the centres c<1> of the nipper-frame which comprises a plate c, b to which is attached the lower jaw D, and upstanding lugs c<3> in which are centred the upper jaw E and top comb F, and to which is attached the connecting-rod H to the rock-shaft K. The upper jaw E centred at e<1> has an extension e controlled by a spring e<z> and adapted as the frame B swings forward to contact with a fixed plate N to open the jaws. The top-comb carries a bowl m which contacts with a fixed cam-plate M to raise and lower the comb. The nipper-frame carries set screws c<2> which are adapted to engage tha frame. B and regulate the height of the lower jaw relative to the comb cylinder. The feed roller G is carried by spring-controlled arms g and is operated by a ratchet-and-pawl arrangement as the frame B swings forward. Specifications 13758/01 and 17495/09 are referred to.
Patent GB-388670-A (GB)
Title: Improvements in sensitising photographic bleaching-out layers
IPC: G03C7/02
Filed: 1932-08-04
Abstract: 388,670. Photographic sensitive layers. I. G. FARBENINDUSTRIE AKT.- GES., Frankfort-on-Main, Germany. Aug. 4, 1932, No. 21905. Convention date, Aug. 4, 1931. [Class 98 (ii).] In the process of sensitizing a bleach-out dye layer after the layer has been otherwise finished, bathing the layer in the sensitizing solution is avoided (1) by applying a solution of the sensitizer, with or without colloid admixture, by rollers or by spraying or pouring ; or (2) by subjecting the layer to the vapour of the sensitizer in a closed vessel in the presence or absence of other volatile substances such as alcohol, and if required with application of heat or under reduced pressure ; or (3) by causing the sensitizer to diffuse into the layer, with or without the aid of heat or moisture, from a superimposed carrying layer as of paper, gelatin, cellulose or an ester or ether thereof- " cellophane " and pergamyn being specially mentioned. This carrying layer, if transparent, may be allowed to remain attached to the bleach-out layer. Examples are given of the various methods of sensitizing, in which allylthiourea (thiosinamine) and its derivatives, dissolved in water or alcohol and ether containing also, if desired, colloids such as gelatin or cellulose derivatives, are instanced as sensitizers ; and in which bleach-out layers are mentioned containing unspecified dyestuffs in a vehicle comprising gelatin or a mixture of collodion and ethylbenzylcellulose.
Patent GB-1519922-A (GB)
Title: Dryers for particulate materials
IPC: B01F7/02
Filed: 1977-05-24
Abstract: 1519922 Drying apparatus V V MAMISTOV L V SOLODNIKOVA V G VOSKONIANTS V F KOLOKOLCHIKOV A A KORYAGIN and V P BUROV 24 May 1977 21923/77 Heading F4G A stationary drum drier has a jacket 2, 3 for steam and a longitudinally arranged rotor 8 rigidly carrying radial blades (9), 10 and segment-shaped partitions 13 (connected to the rotor 8 by adjustable plates 16), the ends of the ribs (9) adjoining the partitions 13, see Fig. 1 (not shown).
Patent GB-920738-A (GB)
Title: Ceramic dielectric materials and capacitors incorporating such materials
Inventor: DOMANSKI STANISLAUS MARIAN
Filed: 1960-06-23
Abstract: A ceramic dielectric material comprises calcium, strontium and bismuth titanates in which the SrTiO3 forms 10-65%, Bi2O3 plus TiO2 (other than that combined with the Ca and Sr) form 3,5-17% by weight of CaTiO3 and SrTiO3, and said TiO2 comprises 50-80 % mole of total TiO2 plus Bi2O3 content.  A preferred composition of the ceramic comprises 50g. CaTiO3, 50g. SrTiO3 and 10g. Bi4Ti3O12.  The ceramic may be prepared by ball-milling CaTiO3, SrTiO3, Bi2O3 and TiO2 in an aqueous slurry, filtering, drying and firing at 1280-1300 DEG C. Bentonite may be added as a binding agent to the slurry.  The use of precalcined CaTiO3 and SrTiO3 is preferred when the SrTiO3 content is high.  If a low SrTiO3 content is used the Sr and/or Ca may be added to the slurry in the form of a compound or compounds that decompose when fired to produce the oxides.  The dielectric properties and uses of the material are described (see Group XXXVI).
Patent GB-695611-A (GB)
Title: Method and apparatus for moulding hollow articles from thermoplastic materials
Inventor: COLOMBO ROBERTO
IPC: B29C48/49
Filed: 1951-09-20
Abstract: A container for chemical substances is formed of polystyrol or cellulosic resin and has an interior lining of polyethylene.
Patent GB-753954-A (GB)
Title: Improvements in or relating to gates
IPC: E06B11/02
Filed: 1954-07-29
Abstract: 753,954. Gates. TURNER'S ENGINEERING FORGINGS, Ltd., and ASTBURY, T. N. July 29, 1954, No. 22112/54. Class 45. A gate a made of tubular metal and metal mesh is pivoted at g to a like panel b for rotation in its own plane as indicated by the arrow. The gate is prevented from sagging by a stop e on the panel c and is located thereagainst by clips f welded to the said panel. The securing means, Fig. 5, for the gate a comprises a lug h thereon adapted to engage a slotted arm i pivoted to the frame b; lug h being apertured to receive a padlock. The gate is provided with a guard j which acts as a ground support when the gate is opened and is also provided with a bracket k (see Fig. 2, not shown), adapted to engage the top rung of the frame b. In a modification, Fig. 6 (not shown), two contra rotatable gates are provided each adapted to engage an upright stanchion n provided with at least one retaining clip o therefor. Each gate has adjustable feet p and one gate has a spring clip g welded thereto. Stanchions n can replace or be used in conjunction with the bracket k.
Patent GB-861725-A (GB)
Title: Improvements in or relating to gas discharge apparatus
Inventor: THONEMANN PETER CLIVE
IPC: G21B1/11
Filed: 1958-07-10
Abstract: 861,725. Nuclear fusion reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. June 29, 1959 [July 10, 1958], No. 22168/58. Class 39(4). In gas discharge apparatus comprising a metallic surface exposed to the discharge, the surface is formed of a plurality of closelyspaced, mutually insulated, thin metallic plates mounted substantially edge-on to the discharge, the edge dimensions and spacing of the plates being such that the effective area of each plate exposed to the discharge is less than that required to maintain a unipolar arc. In one example, Fig. 1, a nuclear fusion apparatus comprising a metal torus 2 is provided with a liner comprising a number of flat metal rings 3 separated by insulating spaces 4. The inner edges of the rings may be bent slightly as shown at 5 to screen the spacers from the discharge, and the liner may be gastight and serve as the containing vessel for the fuel gas. To further reduce the area of each surface exposed to the discharge, each ring may be divided by radial slots into a number of segments. In another example, Fig. 4, the liner is made up of a number of sections each comprising two stainless steel rings 7a, 7b joined together by four alumina insulators, of which two, 8b, 8d, are shown in Fig. 4. Plates 10a, 10b are secured to the rings but insulated from them, and alumina rods 14 carrying plates 15 separated from each other by insulators extend between plates 10a, 10b. The inner edges of plates 10a, 10b, 15, form the inner boundary of the liner. Specifications 830,252 and 838,551 are referred to.
Patent GB-226856-A (GB)
Title: Improvements in non-clogging spray nozzles
IPC: B05B1/34
Filed: 1923-09-03
Abstract: 226,856. Webre, A. L., and Badger & Sons Co., E. B. Sept. 3, 1923. Nozzles for producing whirling sprays.-A spraying nozzle, suitable for use in condenser spray-pond equipment or for moistening air, comprises a casing a, Fig. 2, tapering from an end wall or base, at which is situated a tangential inlet passage b, to an outlet orifice e which is larger than the smallest diameter of the tangential inlet passage b and is situated about three or four times the diameter of the inlet orifice above it. The shape and curvature of the tapering casing a is such as to cause the jet of fluid entering at the passage b to rise as it circles round the casing until it is discharged from a nozzle f surrounding the outlet orifice e with a velocity to give maximum trajectory to the particles of the spray. A hole i, Fig. 3, is provided in the base of the casing through which may escape such solid particles as pass through strainers placed at the entrance to the inlet passage, and through which hole the nozzle may drain.
Patent GB-939281-A (GB)
Title: Window regulator
IPC: E05F11/38
Filed: 1961-06-20
Abstract: 939,281. Vertically sliding window regulators. ANDERSON CO. June 20, 1961 [July 11, 1960], No. 22204/61. Class 20 (3). In a window regulator mechanism for opening and closing a vertically sliding curved window 25, e.g. in a vehicle door in which the window is lowered into a well 21 in the lower part of the door, the window is connected to the nut of a vertically operating screw and nut drive arrangement by means of a flexible member. The curved window 25 is supported on a footing 27 which is guided for vertical movement by curved end guide members 82, 83 on one side of the footing and a similarly curved central guide member 84 on the other side of the footing and for horizontal movement by a roller 89 which is mounted in a central portion of the footing and co-operates with a track portion of guide member 84. A straight helical screw 32, driven by electric motor 30 via a reduction mechanism, is mounted vertically in the well and co-operates with a composite nut 43. A flexible wing-shaped member 65 is secured at its mid portion to the nut and is provided at its ends with spools 69, 70 which engage in horizontal slats 74, 75 formed in the window footing. The slats accommodate horizontal movement of the window with respect to the drive mechanism and the flexible member accommodates the varying distance between the straight line vertical path of the nut and the curved vertical path of the window footing.