baber/WOPTO huggingface dataset:
Patent GB-619738-A (GB)
Title: Improvements in or relating to tobacco pouches
IPC: A24F23/02
Filed: 1946-12-23
Abstract: 619,738. Pouches. BEATTIE, R. W. Dec. 23, 1946, No. 37737. Convention date, Nov. 6, 1943. [Class 133] In a tobacco pouch of the kind comprising front and back panels 1, 2 of flexible sheet material, such as leather, connected together at their side and bottom edges to form a pocket the mouth 12 of which is closed by folding over it a flap 3 also of flexible sheet material extending from the top edge of the back panel, the front and back panels 1, 2 are connected along their side and bottom edges by a creased gusset 4, whose side portions 6, which connect the side edges of the panels are tapered so as to increase in width from the mouth of the pouch for at least a part of the way to the bottom. Preferably the gusset 4 comprises a single piece of material, whilst a waterproof lining may be secured at the bottom and side edges of the panels by the stitching which secures the gusset to the panels. The Specification as open to inspection under Sect. 91 refers also to the rolling up from the bottom of the pouch described above, the flap being rolled around the outside of the pouch. This subject-matter does not appear in the Specification as accepted.
Patent GB-851327-A (GB)
Title: Loom picker
IPC: D03D49/36
Filed: 1958-11-24
Abstract: 851,327. Loom pickers. DAYCO CORPORATION, [formerly DAYTON RUBBER CO.] Nov. 24, 1958 [Oct. 29, 1958], No. 37765/58. Class 142(2). A picker body 17 of nylon or polythene, having an initially uniform bore, is immersed in hot water, and self-oiling bronze bushes 14 of larger diameter than the bore in the body are forced in so that their outer ends are within the ends of the body, as at A; shoulders 19, 20, formed on cooling, lock the bushes in place.
Patent GB-527353-A (GB)
Title: Improvements in photoelectric cells and methods and means for making, sensitizing, and stabilizing the same
IPC: H01J40/06
Filed: 1938-12-30
Abstract: 527,353. Photo-electric cells cathode-ray tubes. ILLINOIS, BOARD OF TRUSTEES OF THE UNIVERSITY OF. Dec. 30, 1938, No. 37927. Convention date, Jan. 5, 1938. [Class 39 (i)] The cathode of a photo-electric cell or an iconoscope screen is rendered more sensitive and stabilized by bombarding the alkali-metal forming the photosensitive layer with atomic hydrogen and with electrons from a thermionic cathode. The metal may be located on the screen or before or during deposition; the latter may be effected by passing molecular hydrogen through boiling alkali metal, when it is deposited. Fig. 1 shows an arrangement in which molecular hydrogen is supplied from a tank 1, through pressure reduction valve 2, cut off valve 3, water trap 4 whose temperature is adjustable, valve 5, actuating bulb 6 and velocity selector 20 to the tube 11. The bulb 6 contains a filament or spherical spaced electrodes, or may be of quartz and be irradiated with ultra-violet light, in which case a trace of mercury is present in the hydrogen. After the tube has been evacuated through 10 the valve 5 is closed, and the bulb 6 operated for five seconds. After evacuation the sensitivity may be tested the process repeated if necessary. Finally the cathode is bombarded with electrons from the gun 18, for a time depending on the potential used. This stabilizing operation and the sensitizing operation may be carried on alternately or simultaneously until the desired sensitivity is obtained. In an automatic apparatus (Fig. 1) a Pirani or other pressure gauge 32 is mounted in the atmosphere of the tube and connected through the balance bridge 42 to a relay controlling the valve 5. The valve 10 and a series of contact 40 ... 52 are controlled by cams so that the various operations are performed. In this case a filament 8 acts as anode, and remains cold while the sensitivity of the tube is measured, is heated by a small current to dissociate the hydrogen (contact 46 open), and by a large current to bombard the cathode with electrons (contact 46 closed). An iconoscope, Fig. 7 may be provided with four filaments, 33, 34, 35, 36, of which 33 is of tantalum loaded with hydrogen, 34 of tungsten, 35 of an alloy of tantalum and barium and 36 of platinum coated with emulsive material. Filament 33 is heated first to release hydrogen, which is then dissociated by 34 ; 35 is then heated to absorb the hydrogen and any free gas in the tube, and 36 to bombard the cathode surface with thermions, and 35 again to complete the gettering. A filament loaded with alkali metal may be provided to restore the photosensitive surface. Alternatively three of the filaments may have appropriate heatable capsules. The Specification as open to inspection under Sect. 91 describes the use of dissociated water vapour to provide the atomic hydrogen, as described in Specification 527,484 ; this subject-matter does not appear in the Specification as accepted.
Patent GB-1219650-A (GB)
Title: Grinding wheel dressing apparatus
Inventor: PALMER RAYMOND LESLIE
IPC: B24B53/08
Filed: 1968-08-09
Abstract: 1,219,650. Dressing grinding wheels. COVENTRY GAUGE & TOOL CO. Ltd. 6 Nov., 1969 [9 Aug., 1968], No. 38038/68. Heading B3D. A grinding wheel dressing apparatus comprises compound slide means 2, 3 for carrying at least one dressing tool 1, each slide being operated by a corresponding electric stepping motor 12, 13 arranged for programmed operation so as to obtain a required path of dressing tool movement. The dressing tool is carried by the slide 2 which is movable along a slideway 6 of the main slide 3 by a lead screw 16 rotatable in a nut 17 by gearing 22 driven from the stepping motor 12. The main slide 3 is similarly moved along a slideway 7 by a lead screw 18 rotatable in a nut 19 by gearing 23 from the stepping motor 13. The motors are controlled by punched or magnetic tape to move the dressing tool to produce the desired contour 8 on a grinding wheel 5. Air under pressure may be introduced between the sliding surfaces, and the lead screws and nuts are of the recirculating ball type. In another embodiment, the motors have linear output members which may be connected directly or indirectly with the slides.
Patent GB-318453-A (GB)
Title: Improvements in and relating to the lubrication of internal combustion engines
IPC: F01M9/06
Filed: 1928-12-27
Abstract: 318,453. Arter, G. S., and James Cycle Co., Ltd. Dec. 27, 1928. Channels in internal-combustion engine parts. -Lubrication of the valve and timing-mechanism which is carried in a casing formed integral with or secured to the crank casings, is effected by supplying oil to troughs partly enclosing the cams which lift oil in their rotation. The valve and timing-mechanism is carried in the casing 2 attached to the crank casing 1 and oil supplied through passages 9, 10, 12 to the semi-circular troughs 8 is lifted by the cams 6 to their points of contact with the rockers and timing- mechanism. Oil is also supplied through the passage 11 to the bearing for the crank-shaft.
Patent GB-1235243-A (GB)
Title: Improvements relating to the cylinders of locks, particularly thief-proof locks
IPC: B60Q5/00
Filed: 1969-07-30
Abstract: 1,235,243. Shuttered keyhole lock. SOCIETE D'EXPLOITATION DES BREUETS NEIMAN, S.A. 30 July, 1969 [2 Aug., 1968], No. 38239/69. Heading E2A. A cylinder lock having an insulating disc 3 with contact plates thereon has a pivoted shutter 4 biassed to normally obscure the keyway and provided with a contact, which contact establishes continuity between the contact plates when it is pivoted by the act of inserting a key in the keyway. The shutter may be of plastics material and may have an integral arm 4', Fig. 3, not shown) to provide the biassing alternatively a separate metal spring may be provided. The lock is provided in a motor vehicle to sound an alarm if the key is left in the lock.
Patent GB-1023502-A (GB)
Title: Improvements relating to fungicides
Inventor: LUGINBUHL CHRISTIAN BENJAMIN
IPC: A01N25/32
Filed: 1962-10-09
Abstract: A fungicidal composition comprises manganese ethylene-bisol thiocarbamate in association with a compound forming zinc or cadmium ions in aqueous solution e.g. the sulphates, halides, nitrates acetates, formates or actates of these metals, to reduce the phytotoxicity of the Maneb.  The stability of these compositions may be increased by adding paraformaldehyde or hexamethylenetetramine. Other adjuvants are a sodium alkyl naphthalene sulphonate wetting agent and methyl cellulose.
Patent GB-1473299-A (GB)
Title: Feedback amplifier
IPC: H03F3/34
Filed: 1973-08-13
Abstract: 1473299 Transistor amplifiers RCA CORPORATION 31 July 1974 [13 Aug 1973] 38320/73 Heading H3T A single ended push-pull emitter-coupled differential amplifier having a current repeater 34, 36 between the outputs of the transistors is supplied with current by a transistor 16 and feedback to the emitters is provided by a current repeater 44, 18. The high-frequency roll-off of the amplifier is determined by capacitor 52. If the resistor 22 is equal to twice the value of resistor 42, the output terminal 40 has a potential midway between B + and earth, while no current flows in the resistor 20. An output of reverse phase may be obtained by the addition of transistor 48. The Specification also describes a more elaborate circuit including a quasi complementary output circuit, which also serves to supply the signal to the input end of the feedback resistor 42. It includes a more complex biasing circuit.
Patent GB-350582-A (GB)
Title: Improvements relating to electric relays for switch control
IPC: H01H50/64
Filed: 1930-03-18
Abstract: 350,582. Clockwork-actuated switches. BURWOOD, G. F., 16, Dulwich Common, London. March 18, 1930, No. 38620/29. [Class 38 (v).] Switches, latching and unlatching.-Switches which are operated by power - loaded mechanism arranged on operation of a controlling electromagnet to release a braking device simultaneously with the disengagement from a rotary control device of means controlling the motion of the power-loaded mechanism and allowing the mechanism to run for a predetermined time are provided with additional means coacting with the rotary control device to retract the electromagnet armature in a positive manner. As shown in Fig. 1, the attraction of the pivoted spring-retracted armature 2 to the electromagnet 1 on closing the switch 21 raises a breaking member 6 from a drum 9 and at the same time lifts a member 8 from a notch 12 in a rotary control device 10 controlling the movements of the power-loaded switch-operating mechanism. This mechanism is thus free to run for a predetermined period to effect the desired switching operation, and towards the end of this movement an inclined surface 16 (Fig. 3) engages a projection 14 on arm 13 to ensure the positive retraction of the armature 1 before the member 8 engages a succeeding recess 12 in the control member 10 which is simultaneously braked to hold up the motion of the mechanism until the electromagnet is subsequently energized. The controlled switches may be arranged as shown in Fig. 2, in which the driven shaft 11 carries a cam 17 with projections 18 which engage and close switch members 20 at each alternate energization of the controlling electromagnets.
Patent GB-369636-A (GB)
Title: Improvements in or relating to telephonic and like signalling transmission systems
IPC: H04B3/20
Filed: 1930-12-23
Abstract: 369,636. T w o way transmission. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A.- (Assignees of Mathes, R. C. ; 171, Sagamore Road, Wyoming, New Jersey, U.S.A.) Dec. 23, 1930, No. 38710. Convention date, Jan. 1. Addition to 338,971, [Class 40 (iv), Telephones &c.]. [Class 40 (iv).] In a cable transmission svstem in which a courier current is sent in advance of the signal currents to the distant terminal station to effect switching operations which are subsequently maintained by the signal currents themselves, the completion of the signal receiving path is delayed after the receipt of the courier current to allow time for the dissipation of any energy due to a courier current in the reverse direction. By this arrangement courier frequencies lying within the signal frequency range may be employed. In the East terminal station shown, the courier current is transmitted by means of relays 8, 9, and, after a time T equal to the transmission time of the cable, relays 11, 12, 13 operate to complete the transmitting path TA and open the receiving paths RA, 18, the signal currents being delayed for a time T + t. An incoming courier current received over the path 18 operates relays 22, 23, 24 to open the transmitting path TA and the circuit of relays 12, 13, while after a time T relay 26 is operated to complete the receiving path RA. Relays 22, 26 are subsequently maintained by the signal currents over the path 27, and the path 18 may be opened if desired. The disabling of the paths may be effected by means of short-circuits or loss networks, and the mechanical control relays may be replaced by thermionic relays. Specification 318,569, [Class 40 (iv), Telephones &c.], is referred to.
Patent GB-957555-A (GB)
Title: Locating fixtures for machine tools
IPC: B21H5/02
Filed: 1962-10-12
Abstract: 957,555. Rolling. MICHIGAN TOOL CO. Oct. 12, 1962 [Jan. 2, 1962], No. 38784/62. Heading B3M. A locating fixture comprises elements for supporting a workpiece against movement in two mutually perpendicular directions, the elements being withdrawn from engagement with the workpiece in response to movement of a plurality of tools into engagement with the workpiece. A workpiece 13 is held laterally in position by elements 25 and 26 and is supported on an element 27, all three elements being moved away from the workpiece as tools 11 and 12 begin to roll the workpiece. A further element 28 acts as an end stop for the workpiece. The tools consist of toothed platens each having three working surfaces, Fig. 3, the supporting plates 18 and 19 of the platens being inclined so that relative axial movement of the platen alters the spacing of the two platens Fig. 4 shows a plan view of either element 25 or 26, the body 29 of the element being adjustably bolted to the appropriate tool 11 or 12. A spring loaded plunger 36, having a slot 40 in one side for co-operation with a stop 41, slides in a part circular bore in the body 29, a head 42 of the plunger co-operating with the workpiece and the end stop 28. The head 42 may be recessed to support the workpiece against vertical movement, in this instance the element 27 being unnecessary.
Patent GB-1009331-A (GB)
Title: Promotion of chemical reactions by electrical discharge
Inventor: COSBY WILLIAM TREVOR
IPC: C01B17/78
Filed: 1960-11-12
Abstract: SO3 is produced by passing O2 and SO2 between two flat circular oil-cooled stainless steel electrodes of approximately 5 cm. diameter to which a 4 kV peak voltage is applied at a frequency of 700 kc./sec.  The electrodes are positioned 10 mm. apart with a 2 to 4 mm. fused silica screen in contact with one of them in a vessel maintained at a pressure of 1/3 atmosphere.
Patent GB-964791-A (GB)
Title: Improvements in fourdrinier wires for paper machines
IPC: D21F1/10
Filed: 1960-11-16
Abstract: 964, 791. Wire fabric. H. JOHNSON. Nov. 16, 1960 [July 21, 1960j, No. 39328/60. Heading D1K. A Fourdrinier wire belt for a paper-making machine has warp threads laid in pairs, and is so woven that each weft strand passes under two pairs of warps and over one pair of warps at each undulation. The knuckles of the weft strands on the one surface are thus forced down during weaving into a plane below that of the warp knuckles, whereas the knuckles of both warps and wefts on the other side form a substantially plane papersupporting surface. The weft strands may be of greater diameter than the warps.
Patent GB-935194-A (GB)
Title: Improvements in or relating to stepless change-speed gears
Inventor: KANO SABURO
IPC: F16H15/14
Filed: 1960-03-08
Abstract: 935,194. Variable-speed friction gear. ISHIKAWAJIMA JUKOGYO KABUSHIKI KAISHA. March 8, 1960, No. 39542/62. Divided out of 935,192. Drawings to Specification. Class 80 (2). The variable-ratio friction gear described in this Specification is the same as that shown in Figs. 4-6 of Specification 935,192. Specification 935,193 also is referred to.
Patent GB-1516552-A (GB)
Title: Panel for a surface heating or air conditioning installation
IPC: F24F1/00
Filed: 1975-09-26
Abstract: 1516552 Radiators for heating and cooling buildings STRAMAX AG 26 Sept 1975 [26 Sept 1974] 39602/75 Heading F4S A panel for a surface heating or cooling installation comprises self-supporting thermally insulating material, e.g. foam plastics or cork, having recesses 3 to receive pipes 6 and formed at the edge 8a with grooves 9a and tongues 10a formed so as to be directed in the same direction but are directed in the opposite direction to the grooves 9b and tongues 10b of the other two adjacent edges 8b which face the opposite direction to enable two adjacent panels to be interlocked. Heat distribution plates 4 are laid on the panel and are formed with recesses 5 to fit into the recesses 3. As shown the panel is used for floor heating, being situated between a concrete layer 1 and a floor finish 7.
Patent GB-900626-A (GB)
Title: Improvements in eddy-current couplings and brakes
IPC: H02K49/04
Filed: 1958-12-09
Abstract: 900,626. Eddy-current brakes and couplings. COHEN, E., and ROTH, S. Dec. 9, 1958 [Dec. 10, 1957], No. 39634/58. Class 35. In an eddy-current brake and coupling the coupling comprises a rotatable shaft 8 carrying an inductor 24 coaxially within a hollow cylindrical stator 18 having a duct 19 between an end thereof and a recess housing a field winding 25 radially outwardly of the inductor 24, and two fans 17, 22 are provided one adjacent the stator end and the other at the opposite end of the coupling and brake. As shown, the coupling embodies a further winding 26 and inductor 24, and crenellations 24a on the inductors form when the windings are energized eddy currents in a rotor 27 connected to a drive-shaft 1, thereby coupling shafts 1 and 8. The brake comprises a crenellated inductor 28 keyed to the shaft 8, a field winding 30 in stator 29, and an element 31 rigid with the stator 29 and in which braking eddy currents are formed by rotation of the inductor. The fan 17 draws air in through an aperture 21 whence it passes through the duets 19, 20 to be discharged through an aperture 17a. The fan 22 impels air either through aperture 21 and the brake, to discharge at 23, or in the opposite direction. Bearings 3, 4, 7, 12 have lubricators 6, 10, 32. Specification 764,811 is referred to.
Patent GB-1361296-A (GB)
Title: Method of placing a pedestal conductor and a conductor string used in drilling an offshore well
IPC: E21B17/01
Filed: 1971-08-24
Abstract: 1361296 Boring earth &c SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 24 Aug 1971 39636/71 Heading E1F Prior to drilling and completing an underwater well a conductor 9 is cemented into the sea-bed 5, a pedestal conductor 10 having a buoyancy member 3 is connected by a coupling 12 to the conductor and blowout preventers are fixed to the top of the pedestal conductor. The member is suspended from a vessel 1, the conductor is lowered through the member, the pedestal conductor is connected by the coupling 12 to the conductor, the pedestal conductor and conductor are lowered through the member, and the pedestal conductor is connected to the member by a coupling 11. Drill pipe 15 carrying a hydraulic turbine 14 with drill bit 23 is lowered through the pedestal conductor and conductor to engage the drill bit with a cutting shoe 13 rotatable on the conductor, and a coupling 16 between the drill pipe and the conductor is engaged. The coupling 12 is released, the drill pipe is lowered and the turbine operated until the top of the conductor is just above the sea-bed. The coupling 16 is disconnected, the drill pipe is raised, a packer 17 on the drill pipe is set in the conductor, and cement is passed down the drill pipe to cement the conductor. The member is weighted and the pedestal conductor is lowered and connected to the conductor by the coupling 12. The weighting is removed from the member, the packer is released, the drill pipe removed and the preventers are fixed. In a modification the pedestal conductor may be coupled to the conductor prior to cementing the conductor. Instead of lowering the pedestal conductor on cables 26 it may be coupled to the drill pipe and lowered. The lower part of the drill pipe including coupling 16, packer, turbine and bit may be lowered into and coupled to the conductor before the conductor is coupled to the pedestal conductor, the upper part of the drill pipe then being lowered and coupled to the lower part immediately after the member has been coupled to the pedestal conductor.
Patent GB-1004376-A (GB)
Title: Improvements relating to paint brushes and the like
Inventor: MALPAS CHARLES HENRY
IPC: A46B15/00
Filed: 1963-10-08
Abstract: 1,004,376. Paint brushes. AMERICAN FLANGE & MANUFACTURING CO. Inc. Oct. 8, 1963, No. 39707/63. Heading A4K. [Also in Division B4] A paint brush handle has inturned lugs 21 and 22 to secure it to a mass of adhesive bonding the roots of the bristles .13. . The number of lugs may be varied or, alternatively, they may be merged into a single inturned flange. A nylon ferrule 12 fits around a moulded nylon handle 17 whose lugs 21 and 22 have been bent inwardly after moulding. The bristles 13 are secured in the ferrule 12 by an initial application of an epoxy or polyester resin either at 15 or at 14. Resin applied initially at 14 may seep into 15 or be applied there later. The handle is secured by a subsequent application of resin 16 or, alternatively, when the resin at 15 has set, the layers 14 and 16 may be applied in a single step. The upper end of the ferrule is also stuck in the groove 19. In 4- or 6-inch brushes, the handle may be reinforced by internal transverse strengthening webs which may additionally be provided with attachment lugs.
Patent GB-867819-A (GB)
Title: Process for the production of lead
IPC: C22B3/28
Filed: 1959-11-23
Abstract: Lead sulphate, lead chloride, lead acetate, lead nitrate or lead monoxide, is leached with an aqueous solution of an alkylene or alkanol amine or acid salt thereof, to form a solution of a complex of the lead compound with the amine, from which lead carbonate may be precipitated by reaction with carbon dioxide after removal of undissolved solids.  The starting material may be obtained by conversion of lead sulphide; e.g. lead sulphate is obtained by oxidation of material containing lead sulphide with oxygen in aqueous sulphuric acid or in water, the subsequent leaching separating the lead from other metals.  The amine may be ethylene diamine, diethylene triamine, triethylene tetramine, tetraethylene pentamine, monoethanolamine, diethanolamine or triethanolamine.  After lead carbonate has been precipitated the solution is mixed with lime to precipitate, calcium sulphate, and the regenerated amine solution is re-used.  The lead carbonate may be reduced to lead by heating with petroleum coke.  Examples are given.
Patent GB-994371-A (GB)
Title: An improved two stroke internal combustion engine
IPC: F02B25/00
Filed: 1961-11-07
Abstract: 994,371. Two-stroke engines; valve gear. S. N. J. COSSOR. Nov. 7, 1961 [Nov. 10, 1960], No. 39823/61. Heading F1B. Power and charging pistons 13, 13a, are connected to crankpins 180 degrees apart, the charging piston 13a feeding fuel-air mixture through a transfer valve 27 which opens at the end of the compression stroke of the charging piston. The transfer valves 27 are spring- loaded and the space 31 above the valve stem is vented either to atmosphere or to the transfer passage 29. The power cylinder exhaust ports 43 are piston controlled and the charging cylinder inlet valve 16 is operated positively through a rod 18 by a cam disc 20 on the crankshaft. In a modification the charging cylinder is of greater bore than the power cylinder to provide supercharging.