baber/WOPTO huggingface dataset:
Patent GB-671529-A (GB)
Title: Improvements in or relating to electron emitting electrodes
IPC: H01J1/14
Filed: 1950-11-29
Abstract: 671,529. Cathode materials and processing. PATELHOLD PATENTVERWERTUNGS- & ELECTRO-HOLDING AKT.-GES. Nov. 29, 1950 [Nov. 29, 1949], No. 29190/50. Class 39 (i). A cathode carries zirconium carbide and thorium, preferably on a metal layer which does not react with the carbide, or on an intermediate carbide layer, the metal of which is the same as, or different from, that of the first layer. In the case of two layers, it is possible to use a first layer, the metal of which reacts with zirconium carbide. Thorium may be deposited on the layer of zirconium carbide or produced by dispersion from a carrier.
Patent GB-681912-A (GB)
Title: Improvements in and relating to dishwashing apparatus
IPC: A47L15/42
Filed: 1949-11-15
Abstract: 681,912. Dishwashing machines. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 15, 1949 [Nov. 23, 1948], No. 29220/49. Class 138 (i). [Also in Group XXV] Dishwashing apparatus comprises a structure having a doorway terminating in a substantially vertical front opening having opposed side flanges and a bottom flange 19 provided with an upwardly directed ledge 27 extending between the side flanges and terminating adjacent the front opening and hinge mechanism having an element secured to the bottom flange 19 and another to the lower part of a door 33 for moving the door between a substantially vertical closed position and a substantially horizontal open position and a first bumper member 79 secured to the bottom flange 19 and a second bumper member 82 carried by the lower part of the door, the bumpers being arranged to engage to support the door in an open position. The apparatus is constructed as described in Specification 681,911 except as regards the hinge mechanism for the door 33. Each hinge comprises a pintle 68 supported on a U-shaped bracket a on the bottom flange 19 of the vat of the machine and a saddle 69 which engages the pintle and is carried by a second U-shaped bracket b attached to the inner panel of door 33 and concealed by the outer panel of the door. The bracket b has a pair of aligned slots 80, 81 to clear the ledge 27 and carries the abutment 82. The abutment 79 is carried by a U-shaped bracket c which is secured to the underside of flange 19 by the rivets which hold the bracket a in place. Rubber gaskets 65, 66 between the flange 19 and the brackets a, c make the vat water-tight. The bracket a has a pair of aligned slots 77 which are engaged by a pin 76 carried by the bracket b when the door is in its open position to keep the saddle 69 in contact with the pintle 68. In an intermediate position of the door 33 the saddle 69 may be disengaged from the pintle so that the door may be removed.
Patent GB-745736-A (GB)
Title: Improvements in and relating to electric discharge lamps
IPC: H01J61/12
Filed: 1952-11-19
Abstract: 745,736. Discharge lamps. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 19, 1952 [Nov. 29, 1951], No. 29234/52. Class 39 (1). An U.V. negative glow discharge lamp contains a gas filling comprising a mixture of 25 per cent by volume of helium, 10 per cent by volume of nitrogen and 65 per cent by volume of argon, all measured under the same conditions of temperature and pressure, the gas filling in the lamp having a pressure of 15 mm. of mercury at room temperature. The lifeperformances of lamps having stated varying proportions of helium, nitrogen and argon are given. The lamp shown in Fig. 1 having such a filling contains a pair of cold electrodes 2 consisting of sheet nickel of one-quarter spherical shape activated by a coating 5 of barium and strontium carbonates. The inner surfaces of the electrodes 2 are preferably coated with aluminium getter paint. The lamp is operated in series with a ballast resistor from an A.C. source of 105-125 volts with a current of 2 milliamps. and an energy consumption of about 0.25 watts. The lamp shown in Fig. 2 is approximately 0.25 inch in diameter and about 1<SP>1</SP>/16 inches long and contains two electrodes 8 of activated nickel wire. The lamp operates at an energy consumption of about 0.04 watts from a source of 105-125 volts at a current of 0.3 milliamps.
Patent GB-402923-A (GB)
Title: Apparatus for burning liquid fuel
IPC: F23D5/00
Filed: 1932-10-19
Abstract: 402,923. Liquid-fuel burners. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM' MAATSCHAPPIJ, 30, Carel van Bylandtlaan, The Hague. Oct. 19, 1932, No. 29290. Convention date, Aug. 22. [Class 75 (i).] Liquid fuel is burnt in a substantially cylindrical combustion chamber provided with one or more openings in its wall through which air is supplied tangentially and one or more fire plates to which the fuel is supplied, arranged near the periphery of the chamber and parallel to its axis. In the burner shown the air is supplied through an aperture 10 in a jacket 6 surrounding the combustion chamber 1 and is given a rotating movement by a helical guide plate 7 before entering the combustion chamber above and below the fireplate 4. The fire plate 4 is formed with a number of grooves and liquid fuel is supplied to every second groove through pipes 8 connected to an overhead tank 15 the fuel level in which may be controlled, for example, by the temperature or pressure in the boiler being heated. The heat of combustion causes vaporization of the fuel in the grooves and the vapour is entrained with the rotating air currents to form a combustible mixture which is ignited as it travels to the open end of the combustion chamber. The fire plate may be provided on its underside with a layer of insulating material to prevent excessive cooling by the air currents and any coke and ash deposited upon it may be removed by periodically shifting the fuel pipes 8 laterally relatively to the fire plate the space of one groove. The end of the combustion chamber adjacent the fire plate is closed by hinged door 5. Unburnt fuel is collected between baffle plates 11, 12 and is drained off through a pipe 13. The overflowing fuel may operate means to put the burner out of action or actuate a warning device. The air openings above and below the fire plate may be adjustable. The fire plate may be heated initially by supplying an easily inflammable liquid at starting or by burning gas or solid fuel. The combustion chamber and fire plate are preferably made of chrome nickel steel or similar heat resistant material.
Patent GB-280217-A (GB)
Title: The manufacture of dyestuffs of the anthanthrone series
IPC: C09B3/60
Filed: 1927-11-02
Abstract: 280,217. Cassella & Co., Ges., L. Nov. 2, 1926, [Convention date]. Addition to 260,998. Halogen derivatives of anthanthrone are prepared by effecting the condensation of 1 : 1<1>- dinaphthyl-8 : 8<1>-dicarboxylic acid to anthanthrone in sulphuric acid solution and then halogenating the product in the same solution without separation. According to an example 1 : 1<1>-dinaphthyl-8 : 8<1>-dicarboxylic acid (Specification 278,100) is dissolved in sulphuric acid monohydrate below 60‹C. and bromination effected by addition of bromine and a little iodine; by adding fuming sulphuric acid prior to bromination the quantity of bromine necessary is reduced.
Patent GB-226197-A (GB)
Title: Improvements in automatic machine guns
IPC: F41A5/02
Filed: 1924-12-08
Abstract: 226,197. Browning, J. M. Dec. 15, 1923, [Convention date]. Machine guns.-Relates to automatic guns of thelong-recoil type adapted to fire large calibre shells and mainly intended for use on aircraft, and consists in providing a transverselysliding wedge breech-block actuated by the longitudinal reciprocations of the lock-frame. Fig. 6 shows the barrel 7, barrelextension 8, breech-block 10 and lock-frame 12 in the firing position. On recoil, these parts move rearwards together against the action of a barrel recuperator-spring 9 and a lock-frame return spring 17. The breech-block is lowered in guides on the barrel extension by an actuating bell-crank lever 11 hinged at 11<a> to the lock-frame. This lever carries a stud 11<d> for engagement with a groove 10<c> in the block, pins 11<e> engaging the forward part 13<x> of a fixed cam plate 13 to lower the block partly, and pins 11<f> which engage a cam groove 13<c> and press aside a switch 13d to lower the block completely against a stop 15a and catch 15<b>. The block is held in the open position by a spring 16 and link 16<a>. The barrel and breechblock return alone to forward position, the lock-frame being retained by a dog 40 engaging a notch 40<c> whilst a cartridge is being lowered between the recoil plates of the barrel-extension. When the lock-frame moves forwards to load the cartridge, the pins 11<f> move in the horizontal groove 13a of the cam-plate and riding down the groove 13<b> raise the breech-block. The last part of the closing movement of the breech-block is effected by momentum and by the reaction of the spring 16, the pin 11<d> finally passing out of the slot 10<c>. The block is then wedged upwardly by an incline 11g on the lever 11 and serves to fasten the lock-frame in forward position. The lost-motion between the pin 11<d> and the slots 10<c> delays the opening of the breech-block and prevents rebound at the end of the closing movement. For hand actuation, a rearward pull on the lever 11 lowers the breech-block and the pins 11<f> pass through the groove 13b into the horizontal groove 13<a> to enable the lock-frame to move rearwards without the barrel. The Specification as open to inspection under Sect. 91 (3) (a) also describes the cartridge-feed mechanism forming the subject matter of Specification 235,592 and the firing mechanism forming the subject matter of Specification 235,591. These matters do not appear in the Specification as accepted.
Patent GB-1369930-A (GB)
Title: Semiconductor arrangents
IPC: H01L27/00
Filed: 1972-06-23
Abstract: 1369930 Semi-conductor devices SIEMENS AG 23 June 1972 [22 Sept 1971] 29478/72 Heading H1K A semi-conductor device has a protective insulating layer comprising a first sub-layer 2 of silicon dioxide, and at least one further sublayer 12 of silicon nitride, beryllium oxide, or an oxide of a Group III element, a window 3 being present at the device surface in the first sublayer, the further sub-layer extending over the periphery of the window at 13 and into contact with the semi-conductor surface exposed at the window. An electrode 15 contacts the surface in the window, the window exposing a doped region 8 whose PN junction is covered by the first sub-layer. The device includes an auxiliary window 5, surrounding the first, and having a doped region 10 therebelow, the periphery of the first sub-layer again being protected by the further sub-layer. A plurality of devices are formed simultaneously, and separated by scribing and breaking at 7 beyond the auxiliary window. Diode construction is described. The first sub-layer may be grown by reaction with the semi-conductor body of silicon or silicon carbide, the further sub-layer being deposited from the gaseous phase.
Patent GB-247690-A (GB)
Title: Improvements in measuring, gauging or marking instruments of the caliper type
IPC: G01B3/24
Filed: 1924-12-10
Abstract: 247,690. Humpage, A. J. Dec. 10, 1924. Linear-dimension gauges. - Relates to means for pivoting the legs or detachable arms of calliper gauges, marking instruments, compasses, &c. The legs 14, Figs. 1 and 4, are passed through holes in plugs 10 and are pulled up against notches in sockets 5 through which the plugs slide, by nuts 12. The rotary sockets 5 are passed through holes in a head-plate 1 and their outer ends 8 are expanded to form holding flanges. The spring washers 7 arranged between the flanges 8 and the plate 1 are preferably formed so that one diameter is a straight line, while the washer is curved in a plane at right angles. A spanner 21 for the nuts 12 may be housed in the shank 3. Fig. 7 shows a method of securing an arm 34 to a calliper &c. leg 31. In this case the plug 37 and the socket 35 have inclined holes through both of which the arm 34 passes. The arm is secured by tightening the nut 41. Fine adjustments may be secured by the screw-and-nut device 52, 53, Fig. 10. The nut 53 is arranged between jaws 49 of a plate 48 which is mounted on the socket 5 in place of a spring washer 7. The plate 1 may be bent over to form a stop 20, and the arms 14 may have shoulders adapted to contact with this stop. The forms of the legs and arms may be varied.
Patent GB-1016102-A (GB)
Title: Improvements in or relating to thermo-electric devices
Inventor: FULLER DENNIS QUINTRELL
IPC: H01L35/08
Filed: 1962-08-02
Abstract: 1,016,102. Thermoelectric devices. PYE Ltd. July 23, 1963 [Aug. 2, 1962], No. 29688/62. Heading H1K.  A thermoelectric device comprises a solid block of semi-conductor material (Fig. 2, not shown) having alternate N and P type segments with adjacent faces in physical contact over substantially their whole area. Fig. 4 shows a refrigerator unit in which a bar B of alternate N and P units is sandwiched between an air cooled, finned member 5 and a cooled member 10, the electric supply being to terminals 7, 8. A similar series connected arrangement functioning as a Seebeck thermoelectric generator is described with reference to Fig. 7 (not shown). Parallel fed arrangements of both kinds are described (Figs. 6, 7, not shown). The metallic heatexchange members and the PN units are separated by a thin insulating film. In manufacture strips of semi-conductor material are sprayed, painted or gas treated with suitable impurities which diffuse under heat; segments formed from blocks of separate P and N-type may be cast alternately; layers of alternating types may be sintered in a mould, or alternate layers of the two types may be melted or keyed together.
Patent GB-1311592-A (GB)
Title: Ink cartridge for use in a writing implement
IPC: B43K5/14
Filed: 1971-06-24
Abstract: 1311592 Reservoir pens PLATIGNUM PEN CO Ltd 24 June 1971 [14 April 1970] 29719/71 Heading B6P An ink cartridge 1 for a writing implement comprises a first cylinder 10 and a second cylinder 12, the second cylinder containing concentrated ink and being defined by a piston 11 in the first cylinder, a second piston 13 being provided in the second cylinder 12, and the first and second cylinders communicating by an orifice normally closed by a check valve 15. In use, the cylinder 10 is filled with water by means of the piston 11 and a metered amount of concentrated ink is introduced into the cylinder 10 by means of piston 13. Piston 13 is advanced by a screw-threaded spindle 13a through rotation of an actuator 17. A scale is provided to indicate the position of the actuator 17 with respect to the second cylinder 12. The piston 11 may also be advanced by a screw thread (11a, Fig. 2, not shown). An agitator 19 is provided to mix the water and concentrated ink. Various forms of check valve are described.
Patent GB-344466-A (GB)
Title: Improvements in safety razors
IPC: B26B21/16
Filed: 1929-10-02
Abstract: 344,466. Safety razors. HENTON, L., York House,Cres. well, Derbyshire Oct. 2, 1929, No 29782. [Class 30. The head of a safety razor is in. tegral with the handle and is formed with upper and lower fixed jaws of non-metallic material such as vulcanized rubber between which the major part of a thin blade and a thin plate, which acts as a spring to retain the blade, are housed. The edge of the lower jaw may be formed as a guard or the retaining plate may be so formed and have a plain or toothed front edge. In the form shown the blade c is carried by a retaining guard plate D having projections G, Fig. 21, engaging blade apertures H, Fig. 19. The blade and plate, are inserted laterally between the jaws A<1>, A<2>, the projections G being accommodated by a longitudinal channel F<1>. A tag J is provided on the guard to facilitate manipulation. The projections G may take the form of a single central projection engaging a central blade aperture, or in the case of a single-edged blade this is located between upturned projections on the rear end of the guard engaging cut-away corners of the blade and upturned projections at the front corners positioning the blade edge. In another form wherein the lower jaw A2 is formed as a guard the retaining plate has upturned parts on its narrow ends engaging end notches in the blade and bearing against the sides of the holder to provide lateral location. The blade and plate are inserted from the front of the razor and the rear edge of the blade is protected by the rear edge of the retaining-plate. According to the Provisional Specification the retaining plate may be omitted, when the blade is located by upturned parts at its ends engaging the sides of the holder, and abutting against shoulders thereon to limit rearward movement.
Patent GB-444271-A (GB)
Title: Improvements in and relating to governing devices for elastic-fluid prime movers
IPC: F01D21/02
Filed: 1934-10-18
Abstract: 444,271. Governing devices for prime movers. PARSONS & CO., Ltd., C. A., GARDNER, F. W., and HAILEY, P. M., Heaton Works, Newcastle-on-Tyne. Oct. 18, 1934, No. 29862. [Class 135] A governing device for elastic-fluid prime movers of the kind responsive both to changes of speed and load includes a controlling unit comprising relatively movable co-operating elements at least one of which is provided with ports controlling a fluid-pressure servomotor both elements moving together in response to gradual changes of load but separating in response to a sudden change. In the governing system shown in Fig. 2, the steam supply valve 19 is opened against the action of a loading spring 21 by oil from a pump 26 acting on a piston 20 under the control of regulators A and B. The regulator B comprises a piston leakoff valve 22<a> actuated by a centrifugal governor 22. The regulator A, Fig. 1, comprises a solid or tubular piston valve 13 coupled by a rod 16 to the core 17 of a solenoid 18 and adapted to co-operate with a ported tubular member 3 closed towards the lower end by a partition 7 to form the movable element of a dashpot. Fluid passes to and from the dashpot through a narrow passage 7<a> and a passage 8 adjustably throttled by a screw 9. A spring 6 acting on the partition 7 tends to hold the sleeve in contact with a flange 14 on the rod 16 which is also acted on by a spring 15. With slow variations of load the parts 3, 13 move together, but with a rapid variation of load they separate to open ports 4 to connect a port to exhaust and so through pipes 32, 31 connect the space below the power piston to exhaust. Two modifications are described in which the two regulators act through a relay valve having a floating lever connection with the power piston.
Patent GB-960592-A (GB)
Title: Alloys and electric contacts formed therefrom
IPC: H01H1/0237
Filed: 1960-08-31
Abstract: An alloy for use in electric contacts contains in percentage by weight .Cd.5-15 in the form of oxide .Ni.0.05-5 .Ag.balance and is characterized by a silver matrix having cadmium oxide particles uniformly dispersed therein.  Contacts are produced by casting the non-oxidized alloy, partially shaping the contact by cold working, internally oxidizing the alloy and finally cold shaping to the final shape, the amount of shaping being sufficient to appreciably harden the contact.  Wire for contact rivets is similarly produced by first forming wire of greater diameter than the rivet shank, internally oxidizing the wire, and then further cold drawing the wire to final size with substantial reduction. Oxidation at 1500  DEG F. for periods up to 80 hours is exemplified.
Patent GB-958969-A (GB)
Title: Oriented shaped bodies of vinyl chloride polymers
IPC: D01F6/08
Filed: 1960-08-31
Abstract: Filaments, films &c of uniaxially stretched crystalline polyvinyl chloride, or of a crystalline vinyl chloride copolymer containing more than 75% by weight of vinyl chloride, are made by forming the filaments &c from a solution of the crystallisable polymer and stretching them (see Division B5).  Crystallisable polyvinyl chloride is produced by polymerising vinyl chloride monomer at -20 DEG C. to -60 DEG C. when mass polymerisation procedures are used and -20 DEG C. to -40 DEG C. when either solvent or suspension type polymerisation processes are used.  The catalysts used may be a trialkyl borane such as tri-n-butyl borane and hydrogen peroxide or tri-ethyl borane and air, the borane and oxygendonating components being in about equimolar proportions and kept apart until contacted with the monomer. In an example, the vinyl chloride monomer is allowed to polymerise at -40 DEG C. in an atmosphere of nitrogen in the presence of a 5% solution of tri-n-butyl borane in hexane and a 1% solution of hydrogen peroxide in methanol. After 4 hours the borane catalyst is deactivated by the addition of a 10% solution of hydroquinone in methanol and any unreacted vinyl chloride is distilled off while methanol is added to maintain the polyvinyl chloride as a slurry. The slurry is filtered and extracted with methanol to remove hydroquinone. The non-crystallisable polyvinyl chloride present in the product may be extracted from the crystallisable syndiotactic portion by extraction, e.g. with tetrahydrofuran, dimethyl formamide or cyclohexanone at 20 to 30 DEG C. for 12 hours or more. The crystallisable polymer may be dissolved in cyclohexanone, dimethyl formamide, or acetamide or mixtures thereof with dioxane or tetrahydrofuran, at higher temperatures such as 125 to 150 DEG C. The filaments, fibres &c formed from such solutions may have added to them up to 20% by weight of a solvent or a swelling agent, such as methyl isobutyl ketone, toluene, dibutyl ether, methyl propyl ketone, xylene or dibutyl phthalate, before being stretched and heat set.
Patent GB-394392-A (GB)
Title: Improvements in and relating to multi-wall paper bags and to the manufacture thereof
IPC: B31B39/00
Filed: 1931-10-29
Abstract: 394,392. Cutting paper and like webs. ROBINSON, F. G., Goldney House, Clifton, JONES, A. J., 17, Old Sneed Road, Stoke Bishop, and SARGENT, T., Cintra, Hill View, Henleaze, all in Bristol. Oct. 29, 1931, No. 30019. [Class 31 (i).] Paper and like webs in the manufacture of multi-ply bags or bag tubes are each severed rectilinearly by the co-operation of a fixed blade and a rotary blade 31, the latter being operated in the following manner. A shaft 27, driven by a pinion 32, carries an eccentric portion 29 on which is rotatably mounted a hollow holder 30 for the cutter 31. The holder 30, flanged at 33 and provided with circumferential slots 34, is driven by a pinion 40 through bolts 35, the heads of which slide in radial slots 41 in a flange 39 driven by the pinion 40. By a suitable choice of pinions 32, 40 and angular adjustment of the holder 30 on the eccentric 29, with adjustment of the cutter 31 on the holder 30, different time intervals for the cutting operation may be obtained on each web.