baber/WOPTO huggingface dataset:
Patent GB-877468-A (GB)
Title: A micro-wave radiating system for the gluing of borders
IPC: H05B6/78
Filed: 1959-02-24
Abstract: 877,468. Aerials. MIWAG MIKROWELLEN A.G. Feb. 24, 1959 [Feb. 27, 1958], No. 6360/59. Class 40(7) [Also in Group XI] Energy from a waveguide I which is shortcircuited at its ends and excited in the H11 mode by a magnetron (not shown) is radiated through wedge-shaped gaps 5 arranged at points of maximum axial-current concentration, each gap 5 being approximately wide and 1À1 to 1À2 4 # long, to heat the glued joint 8 between a 2 wooden board 6 and a border strip 7. A metallic reflector 9 may be replaced by a second radiating waveguide which is displaced # along the glued 4 joint 8 relative to the first waveguide (Fig. 3, not shown), and may be tuned to a different generator frequency.
Patent GB-307458-A (GB)
Title: Improvements in devices for the maintenance of telegraph, telephone or signalling lines
IPC: H04M3/28
Filed: 1929-02-27
Abstract: 307,458. Viard, G. March 8, 1928, [Convention date]. Indicating and locating faults; resistances, measuring.-Tests and measurements on phantomed telephone lines are made by connecting the testing apparatus to the mid-point of the line windings of the phantom terminal tmansformers and connecting the quads consecutively to the testing apparatus. As shown, Fig. 2, the mid-points M<1> - - n of n quads are connected to one set of contacts on a commutator switch adjacent each of which are provided further contacts N<1- - n,> P<1- - n,> Q<1 - - n.> The contacts N, P, G are connected respectively to one pole 16 of a battery or generator A, fault indicator or relay B and voltmeter C, and to earth ' through the impedance Z<2>. A two-way switch 17 is provided for short-circuiting either the relay or voltmeter. In operation, the brush K connects the quads successively to the testing apparatus, in position N for charging, in position P for indicating a fault or for measuring the insulation resistance, depending upon whether one instrument or the other is short-circuited or cut out, and in position Q for discharging the quad to earth.
Patent GB-1171833-A (GB)
Title: Telephone Exchange.
IPC: H04Q3/62
Filed: 1967-02-10
Abstract: 1,171,833. Automatic exchange systems. INTERNATIONAL STANDARD ELECTRIC CORP. 10 Feb., 1967 [11 Feb., 1966], No. 6517/67. Heading H4K. In a cross-bar or reed-relay PBX for a hotel, means are provided for camping-on a busy line of a certain class. In setting-up a connection, busy tone is reverted immediately an " alloutlets busy " condition is encountered in the switching network. However, if a called line busy condition is encountered, the number of this line is checked in a comparator VE which provides an indication of certain classes of service, e.g. waiter or chamber maid. If there is no coincidence busy tone is reverted. If there is a coincidence then a signal is applied to an AND gate G whose other input is fed with the line busy condition and a " call-storage circuit " is seized. This inserts a warning tone into the existing connection to the wanted party and monitors the latter's C-wire. When the existing call terminates, the wanted party is connected through to the caller who meanwhile has been receiving ringing tone. If the existing call does not terminate after a preset time, the caller is diverted to an operator position or to a predetermined subscriber.
Patent GB-280844-A (GB)
Title: Apparatus for dyeing hanks of yarn
IPC: D06B5/20
Filed: 1927-03-09
Abstract: 280,844. H÷ltzing, P. F., (trading as H÷ltzing & Co.). Nov. 19, 1926, [Convention date]. Radial-flow (bladed) type; reversing. - Dyeing liquid in the vat 1 is heated by the passage of exhaust steam from the reversible steam turbine 4 that drives the shaft 3 of the circulating propeller 2 through worm gearing. The turbine is of the inward-now type and is provided with forward and reverse sets of blades mounted on opposite sides of a rotor disc. Steam is admitted to the nozzles of one or other of the sets of blades by a multi-ported valve operated by a rocker arm 16, Fig. 4. linked to a slider 22 on a shaft 24 driven bv worm gearing from the propeller shaft 3.
Patent GB-841181-A (GB)
Title: Improvements in and relating to protective circuit-breakers
IPC: H02H3/347
Filed: 1958-02-28
Abstract: 841,181. Protective cut-out arrangements. BIEGELMEIER, G. Feb. 28, 1958 [March 2, 1957], No. 6564/58. Class 38 (5). In an earth leakage protective arrangement, the energy induced in the secondary winding of a transformer 1 charges a capacitor 2 through a rectifier 7 until the voltage across the capacitor is sufficient to operate a voltage dependent means 3 and permit the capacitor to discharge through a trip-coil 5 to cause the opening of the protected circuit or apparatus. The transformer may have its primary winding between metal parts of the protected apparatus and earth or may be arranged as a core-balance transformer, Fig. 2 (not shown). The means 3 may be a cold-cathode discharge device such as a glow discharge lamp which by repeated flashing would indicate an earth leakage condition should the circuit-breaker fail to open. Charging and/or discharging resistors, such as the resistor 4, may be provided.
Patent GB-817561-A (GB)
Title: Improvements in or relating to automatic exposure control systems for photographic printers
IPC: G03B27/80
Filed: 1957-02-27
Abstract: 817,561. Photo-electricafly controlled photographic printers. KODAK Ltd. Feb. 27, 1957 [Feb. 29, 1956], No. 6645/57. Class 40 (3). In an exposure control system for a photographic printer, a variable intensity printing lamp is controlled by a photo-multiplier tube in order that the light therefrom transmitted by the transparency on to the printing material may be of a preselected value, and during a period when the light from the transparency is cut off from the printing plane and the photomultiplier tube and is directed on to a viewing plane for visual judgment of the image, means are provided which maintain the photo-multiplier tube output at a value substantially equal to its output when illuminated by light transmitted by the transparency, in order to prevent fluctuation of sensitivity of the photo-multiplier tube due to drift. In Fig. 1 a printing lamp 11  illuminates a negative 10 and an enlarged image of the negative is projected by a lens 12 on to printing material 13. A beam splitter 17 directs a fraction of the printing light on to a photo. multiplier tube 18. The output of the photomultiplier tube 18 is compared with a reference voltage E R  derived from a battery 27 and any difference voltage Ea is fed to a preamplifier A1 and then to a power amplifier A2 which serves to adjust the intensity of the printing light 11 until the output of the photo-multiplier equals the reference voltage E R , thereby holding the printing intensity at a predetermined value. In order that the negative 10 may be visually judged prior to printing, a pivoted mirror 14 may be swung to the dotted line position to reflect an image of the negative on to a viewing screen 16. Movement of the mirror 14 into the dotted line position causes operation of a singlepole double-throw switch 40 into the dotted line position. Thereby a negative bias E v  is connected to the input of the amplifier A2 in order to adjust the illumination of the lamp 11 to a comfortable level for visual inspection, and the negative bias E v  is removed from the screen of an electron tube 43 which then conducts to energize a neon lamp 42 which illuminates the photo-multiplier tube 18. The tube 43 is controlled by the difference voltage Ea applied from the preamplifier A1 by line 44 so that the output of the photo-multiplier is again held at the preselected value determined by the reference voltage ER.
Patent GB-873949-A (GB)
Title: Improvements in and relating to nitriles
Filed: 1960-02-26
Abstract: Unsaturated nitriles having the formula:-<FORM:0873949/IV (b)/1> wherein R represents hydrogen or an alkyl, aryl, or cycloaliphatic radical and n is an integer of from 2 to 5, are prepared by reacting a lactone of the formula:- <FORM:0873949/IV (b)/2> with anhydrous ammonia under vapour phase conditions in the presence of a dehydration catalyst and using a temperature range of from 325 DEG to 550 DEG C.  The molar ratio of ammonia to lactone is preferably from 1.5:1 to 6:1.  Specified catalysts include acid-treated clay or silica gel, silica-alumina or acidwashed alumina.  Inert diluents such as steam or nitrogen may be present during the reaction.
Patent GB-177032-A (GB)
Title: Improvements in and relating to hot plate stoves
IPC: F24C15/32
Filed: 1921-03-01
Abstract: 177,032. Wright, C. A. March 1, 1921. Gas cooking-stoves; heat-retainers.-A cooking- stove comprises a hollow hot-plate containing a gas burner and heat-absorbing material arranged beyond the burner. In the stove shown, the hollow hot-plate 1 contains a gas-ring or other burners 2, on each side of which are grids 3 of iron bars forming the heat-absorbing material. A perforated baffle-plate 4 is arranged as shown. Ovens 5, 6, 7 are arranged above the hot-plate, the flue 8 passing up one side and over the topof the oven 7. A flue 9 with damper 10 allows. the flue 8 to be by-passed. Specifications 18457/90 and 1704/07 are referred to.
Patent GB-237833-A (GB)
Title: Improvements in and relating to rocking cars and swings
IPC: A63G13/00
Filed: 1925-03-12
Abstract: 237,833. Beavers, L. E. March 12, 1925. Percussive instruments combined with rocking cars and s w i n g s; actions; tune-sheets; winding- mechanism.-A tune is played on a row of bells 36 by the motion of a car B which may be arranged to rock on a base A or suspended by hooks 15 from supports 13. Plates 16 engaging pins 18 position the car on the base, one plate being hinged to allow the car to be moved. A lateral movement is given to the car when it is converted into, a swing, so that in either of its two positions pinions 34 on a shaft 32<1> carried by the car engage one or other of two rack-bars 23, 23<1> mounted on supports 13. The shaft 32<1> drives pinions 24, 25 which engage pinions 26, 27 having pivoted teeth 33 giving a free-wheel action. Each pinion 26, 27 drives a roller over which bands 32 having a series of blocks 49 pass. The blocks 49 engage hammers 38 mounted on a shaft 39, there being two oppositely disposed hammers for each bell 36. As the pinions 34, engaging one or other of the racks 23, 23<1>, drive the pinions 28, 27, the bands 32 are driven, one set by the motion of the car in one direction, and the other by the motion of the car in the other direction.
Patent GB-416055-A (GB)
Title: An improvements in or relating to machines for cleaning or polishing floors or like surfaces
IPC: A47L11/164
Filed: 1933-03-07
Abstract: 416,055. Floor - polishing apparatus. PASCOE, F. H., 15, Gover Lane, Newquay, Cornwall. March 7, 1933, No. 6894. [Classes 19 and 138 (i).] A flat plate 11, preferably of metal, is adapted to be connected to the flat rotary brush of a floor polishing machine, one face being in contact with the bristles 2 and the other having numerous snags 15 to engage the back of a felt pad 5. The pad 5 is shaped to a boss 9 at the centre to fit inside a hollow boss 12 on the plate 11. The pad and plate are attached to the brush back 1 by a disc 7 having spring arms 8, passing through perforations 6 and 14 in the pad and plate respectively to engage recesses in the brush back 1. Instead of a hollow boss, the plate 11 may be provided with a bridge piece, similarly perforated or with a recess at each side to engage the spring arms 8.
Patent GB-582211-A (GB)
Title: Device for ironing insulating materials on to the straight bar portions of electric coils
IPC: H02K15/10
Filed: 1944-04-14
Abstract: 582,211. Covering cores by winding. MICAFIL, Ltd. April 14, 1944, No. 6922. Convention date, Dec. 10, 1942. [Class 109] [Also in Group XXXV] Insulation is ironed on to the surface of a bar or rod by mounting it in a stationary veeshaped heated trough and rotating it about its longitudinal axis, pressure being applied by a member reciprocated transversely to the trough In the form shown, the ironing rail 4, which may be heated, is reciprocated between the positions shown by the cam 7 making its stroke in one direction while the conductor is moved by means not shown from the full line to the dotted position, the trough being heated by coils 2. A modified form is described with the trough surrounded by a mechanism enabling the insulation to be applied to a conductor of annular form.
Patent GB-442256-A (GB)
Title: Improvements in and relating to change speed gears for automobiles
IPC: F16H3/16
Filed: 1935-03-06
Abstract: 442,256. Motor-vehicle driving-gear. AUTO UNION AKT.-GES., 110, Scheffelstrasse, Chemnitz, Germany. March 6, 1935, No. 7065. Convention date, March 6, 1934. [Class 79 (ii)] In a vehicle having the engine on one side of the driving axle and the change-speed gear at the other side, the gear wheels on the engine shaft are all fixed thereto and one or more of these wheels is or are constantly in engagement with one or more gear-wheels loosely mounted on the driven shaft of the change-speed gear which drives the differential gear preferably through bevel gearing. The engine and the driving axle may be either at the front or the rear of the vehicle. In the construction shown, the engine is at the rear of the rear axle and drives the axle differential gear 1 through gear shafts 2, 7 and bevel gearing 8. The gear-wheels 3-6 are all fixed on the shaft 2, gear-wheels 11, 13 are loose on the shaft 7 and are in constant mesh with the gears 6, 3, and other gears 9, 12 splined on the shaft 7 are separately slidable on the shaft so as either to engage the gears 4, 5 or to clutch the gears 13, 11 to shaft 7. The top gear 3, 13 has a considerable step-up ratio. The second and third gears, which are most used in traffic, are obtained by sliding the gear 12 to-and-fro, this being effected by a simple rocking movement of the gear-lever.
Patent GB-949798-A (GB)
Title: Improvements in or relating to charging machines for xerographic materials
IPC: G03G15/02
Filed: 1961-02-27
Abstract: 949,798. Charging with static electricity. RESEARCH LABORATORIES OF AUSTRALIA Ltd. Feb. 27, 1961 [March 8, 1960], No. 7165/61. Heading H5B. A device for electrostatically charging xerographic materials comprises electrodes 8, 9 which extend on opposite sides across the width of conveyer belt 30 which conveys the xerographic material. The roller electrode 8 comprising conductive core 60 and conductive spikes 7 penetrating beyond the insulating layer 71 is rotated by the same motor (Fig. 2, not shown) as the pulley driven conveyer belt. The earthed electrode 9 is rotated by the conveyer belt. The conveyer belt pulleys and the roller electrode pulley, both utilizing insulated bearings are carried on a base 4 having a transparent cover (Fig. 2, not shown), the height of the roller electrode 8 above the xerographic material is adjustable and more than one pair of electrodes 8, 9 may be incorporated in the device. The xerographic material is fed into the conveyer along sloping insulated table 50 and under the positioning roller 43. The electrode charging circuit is described (Fig. 5, not shown).
Patent GB-800498-A (GB)
Title: Improvements in or relating to cabinets and shelving therefor
IPC: A47B57/06
Filed: 1957-03-05
Abstract: 800,498. Shelves. JASIN, R. March 5, 1957, No. 7209/57. Class 52(1) Shelves 13 have rearwardly projecting pins 35 engaging apertures in inturned flanged edges 14 of the side walls 10 of the supporting casing and forwardly projecting pins 37 on latches 36 pivoted beneath the shelf which engage apertures in the front flanged edges. The side walls are connected by a base and covering cap which can have reinforcing angle pieces at the corners secured to the inturned flanged edges of the walls.
Patent GB-235653-A (GB)
Title: A new or improved carton
IPC: B65D5/42
Filed: 1924-03-21
Abstract: 235,653. Roydhouse, E. F., and Autolex, Ltd. March 21, 1924. Folding boxes; contents, viewing.-A collapsable box made up from a blank comprising four central panels a, d and an adhesive tongue and side flaps m, n with locking tongues and slits is provided in one of the central panels with an opening g covered by a sheet h of transparent gelatine or like material. The opening may be of any suitable shape. Reference has been directed by the Comptroller to Specifications 12038/91 and 10999/94.
Patent GB-755342-A (GB)
Title: Improvements in or relating to free piston hydraulic accumulators
Inventor: BOX FREDERICK JAMES
IPC: F15B1/24
Filed: 1954-03-12
Abstract: 755,342. Hydraulic accumulators. KEELAVITE CO., Ltd. May 24, 1955 [March 12, 1954], No. 7360/54. Class 69 (2). A hydro-pneumatic accumulator comprises a piston 5 loaded by gas in a chamber 6 and having a hydraulic chamber 7 communicating through a passage 4 with a hydraulic system. A projection 11 is fast with the piston and is formed with a head 14 which enters the passage 4 as the piston descends towards the exhausted condition of the accumulator, thus restricting flow. On further downward movement the passage 4 is closed by a disc valve 16. The liquid trapped in chamber 7 is maintained at a pressure higher than that of the gas in chamber 6 owing to the differential areas of the piston. Leakage of gas into the hydraulic chamber is thus prevented. When the pressure in the hydraulic system rises, it acts through a passage 21, provided with a non-return valve 22, and passages 26 formed in the head 14, upon the disc valve 16 to lift it, and then upon the piston 5, which may thus be raised rapidly in spite of the presence of the bead 14 in the passage 4.
Patent GB-526060-A (GB)
Title: Improvements in driving means for providing a cyclic variation of speed
IPC: F01L5/10
Filed: 1939-03-07
Abstract: 526,060. Toothed gearing. KAMMER G. S. March 7, 1939, No. 7427. [Class 80 (i)] [Also in Group XXVII] Toothed driving-means for providing a cyclic variation of speed, and particularly applicable for driving the sleeve valves of internal-combustion engines, comprises a pair of eccentrically-mounted circular gear wheels 8, 9 held in mesh by a yoke 15 having bearings concentric with the pitch circles of the gears, the axis P of one wheel being fixed, and the axis O of the other constrained to move in a predetermined path, for example by means of a pin 16 carrying a roller 17 working between vertical guides 18. A sleeve valve 3 may be driven by a socket 25 formed on the gear 9 and engaging a spherical bearing 19 on the valve. The guides 18 may. be replaced by a link attached to the pin 16 and moved at its other end by an eccentric. The drive may be used with sleeve valves as described in Specifications 508,326 and 511,479, [both in Group XXVII].
Patent GB-813223-A (GB)
Title: Improvements in multiple rotary pumps of the flexible vane type
IPC: F04C2/44
Filed: 1957-03-06
Abstract: 813,223. Rotary pumps. JABSCO PUMP CO. March 6, 1957 [March 23, 1956], No. 7458/57. Class 110 (2). In a multiple rotary pump of the flexiblevane type the vanes co-operate with a common cam 50 which is slidably received in the pump housing 10 and is provided with notch-shaped inlet and outlet ports 94, 100 respectively. The pump is driven through gears 38, 40 which are journalled in a housing 12 by bearings 30, 32, the housings 10, 12 being connected together by arms 14. The pump is provided with endwear plates 108, 110 which are prevented from rotating by the provision of co-operating flats (see Fig. 3, not shown), or by means of a common pin 116.
Patent GB-1380996-A (GB)
Title: Gas burners
IPC: F23D14/14
Filed: 1972-02-17
Abstract: 1380996 Gas burners COLUMBIA GAS SYSTEM SERVICE CORP 17 Feb 1972 [17 Feb 1971] 7478/72 Heading F4T A method of producing heat in a gas burner of the type comprising a plate having a plurality of orifices 16 having inlets and outlets at opposed surfaces of the plate, consists in passing a combustible air-gas mixture through the orifices at a flow rate such that there is established a central jet 38 of the mixture and a high velocity turbulent zone 39 between the jet and the walls of the orifices and producing a flow separation of the jet 38 and zone 39 at the edge portion of the outlet to provide a zone 40 of turbulent low velocity recirculating flow along the outlet surface of the plate in which substantially unrestricted flame propagation occurs. The velocities in zone 39 of the mixture are too high to support flame stabilization therein and the zone 40 prevents lift off of the flame from the surface of the plate. When the mixture is ignited, the gases in zone 40 produce a flame front along the surface of the plate. Each orifice 16 comprises a throat portion 26 opening into a diverging portion 32 and is preferably of circular cross-section throughout. The plate is located above a plenum chamber to which a pressurized gas and air supply is connected. Alternatively, a Venturi aspirator supply system may be used, the gas being supplied at sufficiently high pressure so that the mixture of gas and aspirated air achieves a sufficiently high velocity to produce flow separation in the orifices. Reference has been directed by the Comptroller to Specification 1,297,213.
Patent GB-589930-A (GB)
Title: Improvements in oil seals
IPC: F16J15/20
Filed: 1945-03-26
Abstract: 589,930. Stuffing-box substitutes. COOPER & CO. (BIRMINGHAM), Ltd., and STOKES, F. P. March 26, 1945, No. 7523. [Class 122 (v)] An angle-sectioned sealing ring 10 of felt coated with rubber and graphite is mounted on the fixed shaft 21 and is pressed into engagement with the rotating pulley 22 by the spring washer 17. The sealing ring is enclosed in a metal casing 13 and is prevented from rotating by the tongue 16 on this casing engaging the pin 19.
Patent GB-1034281-A (GB)
Title: Thief-proof tradesmen's 'self-service' delivery hatch
IPC: A47G29/22
Filed: 1964-02-25
Abstract: 1,034,281. Goods receiving and storing receptacles. F. L. COMPTON, C. S. COMPTON and B. R. COMPTON. Feb. 22, 1965 [Feb. 25, 1964], No. 7707/64. Heading A4T. A goods receiving and storing receptacle for building into a wall comprises a cylindrical container with radial walled compartments each having a low cammed outside wall, rotatable about its axis by co-operation of the low wall and a side abutment thereof with a pawl on a sliding door when opened to present a compartment to the door aperture. The cylinder and door are locked after closing the last compartment and may only be opened internally. A pawl about the axis prevents reverse rotation.
Patent GB-937009-A (GB)
Title: Improvements in and relating to ploughs
IPC: A01B15/08
Filed: 1961-03-02
Abstract: 937,009. Agricultural implements. S. TAKAKITA. March 2, 1961 [March 3, 1960], No. 7736/61. Class 6(1). A plough for making circular trenches or gutters comprises a sole 4 which is curved arcuately at a radius corresponding to that of the desired circular trench or gutter. The plough may include a disc or a disc 8 and share 7 as shown. It may take the form of a ridging plough having two mouldboards or a ridging share with two discs.