baber/WOPTO huggingface dataset:
Patent GB-447022-A (GB)
Title: Improvements in and relating to boundary beacon lights for air-ports
IPC: E01F9/615
Filed: 1935-11-21
Abstract: 447,022. Switches held set and freed mechanically. CURRAN, E., 6, Richmond Road, Cardiff. Nov. 21, 1935, No. 32234. [Class 38 (v)] [See also Groups XI and I] In an electric boundary beacon light for airports in which a bollard 18 is so supported on a base 1 as to be easily upset when struck by an aeroplane &c. and is provided on the under - surface with a spring-pressed contact, or contacts, k<1> normally engaging a contact, or contacts, k on the base, the, or each, contact k is connected to the supply mains through a spring-controlled switch 2 adapted to be closed by the bollard in its upright position. As shown, the switch comprises two oppositelydisposed spring-pressed plungers 3 adapted to be bridged by an insulated rotatable ring 8 on a pivoted spring-pressed arm 4 when the latter is depressed by a pin 19 on the bollard through the medium of a rod 13 slidable in the guide 17 on the base. The rod 13 may project above the top of the base and the pin 19 be omitted. The conical seatings 25, 15 on the bollard and base are arranged so that contact takes place over a narrowly limited area. The male and female seatings on the bollard and base may be reversed or replaced by ball-and-socket seatings. A drain channel 20 opening to an outlet 21 prevents rain from reaching the contacts k. A double pole switch may be used in place of two single pole switches.
Patent GB-339063-A (GB)
Title: Improvements in or relating to vapour electric rectifiers
IPC: H01J13/20
Filed: 1929-10-24
Abstract: 339,063. General Electric Co., Ltd., and Gallizia, E. Oct. 24, 1929. Metallic - vapour apparatus. - To prevent back-ignition in mercury-vapour rectifiers, gases are withdrawn from the vicinity of the anode by means of ducts formed in the anode shield, or on, or in part, by a surface of the shield, the ducts extending in the direction of the length of the shield and communicating with the interior thereof adjacent the anode. An annular duct 17, Fig. 1, communicates with the shield interior through a passage 11, and is formed by an inner wall 9, which may be electrically insulated, and is spaced by arms 10 from an outer wall 6. which may be insulated from or connected to the top plate 2 of the rectifier. The duct may be divided by means of partitions serving as supports for the inner wall, which may consist of quartz, iron, tungsten or iron covered with vitreous enamel. The flow of vapour past an annular orifice 13, formed by a rib 14, produces a pump action which facilitates the withdrawal of gas from the duct. The anode 1 is secured by means of a flange 18 to the plate 2 through an insulator 4 and washers 5, gas leaking at the parts 15 flowing into the duct. In a modification, Fig. 2 (not shown), the outer wall 6 is secured to an insulator, which is mounted on the amode through an insulating washer so that gas leaking through points 15 passes into the rectifier externally of the shield and duct. The invention may be applied to a side-branch type of rectifier, the side branch taking the place of the anode shield and being formed with double walls.
Patent GB-281686-A (GB)
Title: Improvements in electrical converting apparatus
IPC: H02K47/16
Filed: 1927-12-01
Abstract: 281,686. Compaganie Franþaise pour l'Exploitation des ProcÚdÚs Thomson-Houston. Dec. 1, 1926. [Convention date]. Void [Published under Sect. 91 of the Acts]. Addition to 281,284. Rotary converters and transformers. - The Specification, which relates to multiple brush converting machines adapted to run as motors, generators or converters and described as " metadynes," as described in the parent Specification, is composed chiefly of mathematical relationships concerning the current and voltage in such machines and especially in a continuouscurrent converter of this type. According to the invention, a number of brushes higher than three may be provided for every pole pair. The claim is for a " metadyne " of the kind described in the parent Specification wherein the machine is constructed in accordance with the equations set forth. The drawings show diagrammatically the brush and pole positions and the gap flux distributions in such machines. Fig. 1 shows a machine with four brushes a - - d, notches opposite the commutation axes A-A<1>, B-B<1>, C-C<1>, D-D<1>, and a drum-wound armature of diametral pitch. The stator windings, which have no bearing on commutation, consist of coils each of which encompasses a single pole segment, as shown, for example at A<ab>. A ring- wound machine with four brushes is also described in the Specification. Fig. 7 shows a drum winding with fractional pitch, in which case " the distribution of currents in the armature is no longer symmetrical and the arrangement of the stator notches for commutation is no longer upon the same diameter." The Figure shows an example for two brushes a and b.
Patent GB-1144701-A (GB)
Title: Towable glider
IPC: B64D5/00
Filed: 1966-07-19
Abstract: 1,144,701. Towed aircraft. UNITED STATES OF AMERICA. ARMY, SECRETARY OF. 19 July, 1966 [19 July, 1965], No. 32422/66. Heading B7W. A load-carrying towed glider comprises a delta-shape wing 10 comprising diverging frame members 14 and a central keel member 12 across which is stretched a flexible membrane, the wing being held at a positive angle of incidance by rigid struts 16, 17 carried by a load-carrying platform 11. A pair of towing bridles 20, 21 connected respectively at their diverging ends 27, 31 to the rear and front ends of platform 11, are connected at their front ends to the extremities of a balancing lever 22 to which is attached a swivel 36 for a tow cable, the arrangement being such that the glider is held at an optimum towing attitude with the full line of the tow cables passing substantially through the centre of gravity of the platform.
Patent GB-847333-A (GB)
Title: Improvements relating to gauges for measuring volumes of water in the form of droplets
IPC: G01F23/70
Filed: 1958-10-10
Abstract: 847,333. Indicating liquid levels. WALTON, G. H. Oct. 10, 1958, No. 32446/58. Class 123(1) [Also in Group XX] A rain gauge has an audible alarm which is operated when a predetermined volume of water has fallen. The water entering an opening 3, Fig. 2, is collected in a container 5 and raises an electrically conducting float 11, Fig. 4, freely slidable on a metal rod 8. When the float 11 reaches the position 111 contact is made with an arm 10, which is adjustable along rod 7, so that the electric bell 16 is sounded. Rod 7 may be graduated.
Patent GB-383426-A (GB)
Title: An improved drinking fountain for poultry
IPC: A01K39/026
Filed: 1931-11-24
Abstract: 383,426. Drinking - appliances for poultry. FIELDEN, A. and CLEGG, A., Underbank Sheet Metal Works, Charlestown, Hebden Bridge, Yorkshire. Nov. 24, 1931, No. 32499. [Class 5 (ii).] A water container A has a base B in the form of an annular flange that rests on the bottom C of a drinking trough D and may be detachably secured thereto by headed pins S projecting from the bottom C and passing through keyhole slots in brackets R projecting from the flange. A delivery pipe F extends from the bottom of the container and is provided with a ball or float operated cock J. The end of the pipe F projects above the bottom of the receptacle A and is covered by a gauze strainer L. Outlets N permit the water to flow from the middle to the outer part of the trough. A cover V is provided for the trough.
Patent GB-160938-A (GB)
Title: Improvements in or relating to reservoir paint-applying brushes
IPC: B05C1/06
Filed: 1919-12-31
Abstract: 160,938. Peterson, C. A., and Swanson, C. Dec. 31, 1919. Coating-machines.-A wall or like painting- apparatus to be supported on a decorator's scaffold comprises an oscillating brush fed by a pump from a container combined therewith. The brush 61, having metal or rubber feed-tubes 62, is cscillated from a motor 7 by gearing 8, 13, crank 21, and links 56, 54. The crank 21 also reciprocates the pump-piston 63, which draws paint through a tube 29 past a check-valve 42 and delivers it by a tube 45 with check-valve 46 to the brush. The apparatus may be used inverted and the paint still drawn from the bottom of the container, by screwing up a valve 27, 28 to close the in-take to the tube 29 and opening a similar valve 28<1> controlling a tube 35.
Patent GB-814682-A (GB)
Title: Improvements in wall boxes for mounting electrical accessories
IPC: F16B37/04
Filed: 1956-10-27
Abstract: 814,682. Switch cases. CRABTREE & CO. Ltd., J. A., and MORGAN, R. W. Aug. 27, 1957 [Oct. 27, 1956], No. 32819/56. Class 38 (5). A metal wall box for mounting an electrical accessory, for example a switch, has slidably adjustable nuts of insulating material for ensuring that the cover-plate securing screws cannot contact the box. In Fig. 2 a rectangular nylon nut 7 is held against the inside wall of a box 1 by a metal pressing 2 slidable on rivets 5. The nut 7 has a blind tapped hole 8 and is retained by two or three flanges 9. In a modification (Fig. 3, not shown), the metal pressing extends to one side only and is guided by a single rivet. In the embodiment of Fig. 7 the nylon nut 7b has integral side wings 3b guided in loops 5b.
Patent GB-1180439-A (GB)
Title: Improvements relating to Feeders for Particulate Material
Inventor: LAWLOR MICHAEL OWEN
IPC: B65G65/00
Filed: 1967-07-18
Abstract: 1,180,439. Endless conveyers; discharging hoppers. M. O. LAWLOR. 15 July, 1968 [18 July, 1967], No. 32844/67. Headings B8A and B8S. A hopper 10 and a feed boot 12 feed a conveyer belt 14 supported on rolls 15-17 mounted and journalled in blocks 18, 19 underslung from a frame 13. By removing the rolls and the belt, access to the other parts of the apparatus is possible without dismantling the hopper. For controlling the discharge of particulate material, arms 20 pivoted on a shaft 21 have weights 24 which may be adjustable. Alternatively, a plate having a fixed aperture therein may provide control.
Patent GB-734364-A (GB)
Title: Improvements in or relating to the production of metal strip
IPC: B22F3/18
Filed: 1952-12-29
Abstract: 734,364. Coating with metals. BRENNAN, J. B. Dec. 29, 1952, No. 32851/52. Class 82 (2). [Also in Group XXII] A method of forming a metal strip comprises directing, e.g. spraying, a stream of metallic particles towards a pair of converging moving surfaces, e.g. rolls, and towards a bite between such surfaces so that the particles coated on the moving surfaces are pressed together in the bite to produce a coherent metal strip. A pair of rolls 11, 12 are positioned in an opening 13 on one wall of a chamber 10 and sealing means, e.g. rubber strip, around the opening 13 seal the rolls in the opening. Cooling fluid may be introduced into the rolls via their shafts. A nozzle 18 for spraying plastic metal particles P, e.g. of bronze, steel or aluminium, towards the roll bite is mounted in the chamber 10 and scraper knives 21 bear on the rear surfaces of the rolls to remove the deposited metal particles. An electro-conductive heating coil 29 heats the particles to the required plasticity. To prevent the metal particles from adhering to the rolls the roll surfaces are chromium-plated or graphite coated or the rolls may be formed of graphite. Sizing rolls 22 and 23 are positioned adjacent the scrapers for compacting and sizing the strip. Spray nozzles 24 and 25 cool the strip 19 and a further pair of rolls 26, 27 size and pass the strip to an annealing chamber 28. In a modification, metal particles Z fall from a hopper 31 through an induction coil 32 on to converging driven rolls 35 and 36 which press the plastic particles together to form a metal sheet 37. In another modification a pair of anodized aluminium bands 41 and 42 are led around rolls 43 and 44 and metal particles Y are sprayed on to the converging bands from a nozzle 45. Guide-plates 46, 47 limit the size of the sheet formed between the bands. A laminated composite strip may be formed by passing a band of steel, aluminium, paper, asbestos or other fibrous material around one of the rolls, heating the outer surface of the band by an electric coil, cooling the inner portion of the band by a cooling shoe and spraying metallic particles on to the heated portion of the band. When using paper or other fibrous material the band must be cooled immediately after depositing the plastic metal particles. The porous metal strips may be used for electrodes for electrolytic devices, e.g. condensers and for bushings or bearings or transformer laminations. To aid in starting the formation of the strip a " bait " is inserted between the rolls and the metal particles are first deposited on the " bait " as it is drawn from the rolls. Specification 548,023, [Group III], is referred to.
Patent GB-341988-A (GB)
Title: Improvements relating to brake mechanism for automobile vehicles
IPC: B62L3/02
Filed: 1929-10-29
Abstract: 341,988. Hand and fluid-pressure operated brakes. TOMLINSON, A. V., 65, Victoria Street, London.-(Compagnie des Freins Westinghouse ; 23, Rue d'Athenes, Paris.) Oct. 29, 1929, No. 32878. [Class 103 (i).] The cable and sheath of a Bowden transmission are arranged each to operate a separate brake, one by fluid pressure so that the operation of the one brake is dependent upon that of the other. As applied to the front and rear brakes of a motor cycle, the cable 3 of the Bowden transmission is connected to the hand lever 1 and to the front brake lever 2. The sheath 9 is attached to a lever 5 pivoted on a bracket 7, the cable passing freely through both the lever and bracket. The cable 19 of a second Bowden transmission is secured at one end to the lever 5 and at the other to the movable member of a valve device 4 adapted to put an operating cylinder 11 of the rear brake into communication with the suction pipe 14 of the engine of the vehicle. The valve device 4 is of the type in which the effort applied by the brake piston is proportional to that exerted on the valve by the operating member. The effort applied to the front and rear brakes is thus proportional the one to the other. The rear brake can be independently applied by a pedal 22.
Patent GB-985061-A (GB)
Title: Improvements in or relating to optical viewing systems
IPC: G02B27/22
Filed: 1962-08-27
Abstract: 985,061. Stereoscopy. LABORATORY FOR ELECTRONICS Inc. Aug.27, 1962 [Aug.25, 1961], No. 32887/62. Headings G2E and G2J. Stereoscopic apparatus comprises means for presenting left and right eye images alternately on a screen, an object lens and field lens forming an image of the views presented and having an exit pupil longer than the interocular distance of an observer, a shutter with an opaque portion to mask one half of the object lens and disposed between the two lenses and means for operating the shutter in synchronism with the means for presenting the images so that left eye images are presented only when the opaque portion of the shutter is masking one half of the object lens and right eye images are presented only when the opaque portion of the shutter is masking the other half of the object lens. As shown, sources 16, 17 alternately project left and right eye views on a screen 11 which is viewed by an observer at 18 through object lens 12 and field lens 13, the observer having both eyes within the exit pupil 14 of the lens system. Near the lens 12 is a shutter 15 (e.g.a disc with a semi-circular opaque section) which is rotatable in synchronism with the operation of sources 16,17 so that, when the left eye source 16 is operative, shutter 15 covers the right hand half of lens 12 and vice versa. The images may be projected on to screen 11 by a television tube, a projector through which is fed film having right eye and left eye images in alternate frames, or a pair of projectors. The system may also be used for X-ray stereoscopic fluoroscopy.
Patent GB-154212-A (GB)
Title: Improved film developing apparatus
IPC: G03D3/13
Filed: 1920-11-22
Abstract: 154,212. Morant, H. C. F. Nov. 22, 1920. Continuous apparatus for daylight development and like treatment of roll-films.-The apparatus contains two or more liquid receptacles and means operated from outside the tank for immersing or depressing sections of the film in the solution. The disk or tank 1 may be wholly or partly of non-actinic material, or may have non-actinic apertures 24 through which the film F may be illuminated, or may be fitted with non-actinic lamps 25. The cover 21 is fitted with a hinged lid 23 over a non- actinic transparent slide 22 through which the illuminated film can be viewed. The tank may be divided into sections by partitions 2 and the film immersed in the baths by wire frames 20 shaped so as to engage the films at the edges and mounted on shafts 18 which are turned from outside. The spools 5, 6 are mounted between a fixed pin at one side and a spring-pressed coupling pin 14 at the other side, the latter being turned from the outside to draw the film from the spool 5 to the spool 6. The sections of the film are immersed in the baths as required. The tank may be mounted on rocking ledges 26.
Patent GB-736612-A (GB)
Title: Improvements in or relating to the deasphalting of petroleum oils
IPC: C10G53/14
Filed: 1952-12-30
Abstract: Asphaltic constituents are removed from petroleum oils by blowing the oil with air at a temperature of about 450-700 DEG  F. and then treating the air-blown oil with a deasphalting solvent. The petroleum oil may be a residual oil, while suitable deasphalting solvents are low-boiling hydrocarbons such as those containing 2-5 carbon atoms in the molecule, particularly liquid propane and butane.  In an example, a petroleum residual oil is air-blown at 550 DEG  F. and then deasphalted with a liquid mixture of n- and iso-butanes.  The deasphalted oils obtained by the process may be used as lubricating oil, fuel oil or feedstock to a catalytic cracking operation. Apparatus is described in which crude petroleum is distilled to yield gas, light and heavy naphtha, gas oil and residual fractions, and the residual fraction is air-blown and then propane-deasphalted.  The deasphalted residual fraction, blended if desired with the gas oil fraction, is then passed to a catalytic cracking zone employing a fluidized catalyst and the cracking products are fractionated to yield gas, gasoline, heating oil, cycle oil and bottoms fractions. Details of suitable cracking catalysts, of suitable conditions in the cracking zone and of the regeneration of the catalyst are given.
Patent GB-429433-A (GB)
Title: Improvements in electro-magnets
IPC: H01H47/04
Filed: 1933-11-25
Abstract: 429,433. Electromagnets. HALL, N., Westgarth, Lyndhurst Grove, Low Fell, Gateshead. Nov. 25, 1933, No. 33045. [Class 35] [See also Group XXXVIII] In electrically operated organs and musical instruments, the pivoted electromagnet armature is directly connected to the stationary core from which it is separated when in its unattracted position, by a single gap and a resistance is provided to reduce the current when the mechanism to be operated is brought into the operative position, the reduced current being sufficient to maintain the mechanism in that position. In the form shown, the armature 2 is pivotally mounted on the core 1 and towards the end of its stroke separates the contacts 6, 7 so that the higher resistance winding 5 in series with the main winding 4 is no longer short-circuited. The armature may carry a pallet pad, may operate a pallet or valve by a wire 12, or may operate a multicontact switch for stop and coupler operation. The armature may be returned by the resilient movable contact arm 7 or by separate means whilst the switch for the additional winding may alternatively be incorporated in the device operated. In a modified form, the coils are energized in parallel at the beginning of the stroke but afterwards the high resistance coil is used alone. According to the Provisional Specification, in the case of the series connection, the supplementary winding can be entirely separate from the electromagnet.
Patent GB-666503-A (GB)
Title: Improvements in air guns
IPC: F41B11/642
Filed: 1948-12-23
Abstract: 666,503. Air guns. PRODUSIT, Ltd., and HICKS, R. E. Dec. 23, 1949. [Dec. 23, 1948] No. 33207/48. Class 119. An air gun has the barrel 1 from the muzzle to the trigger end formed of seamless drawn tubing with a forward part 1a of reduced diameter, the shoulder so formed being closed by leather washers 2 and a bush 4. The bush 4 has a tapered mouth 5 to guide a pellet projection tube 3, which extends into the washers. The outer end of the tube is furnished with a cap 6 fastened to the barrel by a bayonet slot-and-pin connection. At the rear of the barrel is a trigger bracket 7 of sheet metal with two flanges 8 to which a sheet metal trigger guard 9 is attached. At the rear end of the guard is pivoted a sheet metal bracket 9c fixed to the gun stock. Holes 10 in the stock bracket engage a ball 11 in the tail of the trigger guard to hold the stock in the closed position. The plunger stem is a tube 12 slidable in a tube 13 fixed in the barrel, a spring 14 bearing against the tube 13 and a shoulder on the plunger. The trigger 16 has a projection 15 fitting with a control spring 17 which engages a projection 18 on the tube 13. The sights comprise a pierced lug 19 bent upwards from the barrel bracket and a lug on the cap 6. The trigger engages a hole 20 in the plunger which is retracted by a U-shaped pullwire link 23 engaged with a cross-pin 21, the limbs of the link riding over across-pin 22 and being connected to the gun-stock. Specification 77/01, [Class 119], is referred to.
Patent GB-978609-A (GB)
Title: Rotary reamer
IPC: B24B5/14
Filed: 1963-08-22
Abstract: 978,609. Grinding. SUPER-CUT Inc. Aug. 22, 1963 [Sept. 10, 1962], No. 33304/63. Heading B3D. Apparatus for abrading the inside wall surface of a preformed hole 14 in a ceramic slab comprises a bed plate 22 for supporting the slab in a horizontal position, a tool 10 having a peripheral abrasive surface 40 mounted for rotation about, and movement along, a vertical axis, a stabilizing reaction hub 49 mounted for rotation on the bed plate, and a plurality of circumferentially-spaced guide posts 64 projecting upwardly from the hub and axially slidable in guideways 68 in the tool. The slab may be in the form of a marble, granite or slate billiard table having holes 12 which are drilled by conventional means and are to be shaped to a tapered form 18. The tool has a cupshaped body 30 having a tapered peripheral surface 38 corresponding to the desired taper to be formed in the holes, the surface having a continuous abrasive covering or carrying elongated rectilinear abrasive segments 40 secured by soldering or the like into slots 42 in the body. Each segment may comprise a metallic matrix impregnated with diamond particles. The stabilizing hub 49 consists of a disc 50 mounted on a bearing 58 secured by a bolt 61 to the bed plate 22, and the guide posts 64 are screwthreaded into the disc and extend upwardly to engage the guideways 68 in the body of the tool. The slab is supported on a plywood spacer sheet 20 above the bed plate with the tool 10, hub. 49 and hole 14 in axial alignment. The tool, which is mounted in a drill chuck 26, is rotated and moved downwardly with the guide posts engaged in the guideways 68 so that the tapered shape is produced in the holes, the guide posts and guideways preventing the tool from chattering. Springs 74 act to urge the tool upwardly when the operating lever of the drill press is released. Coolant is supplied to the tool during the abrading of the hole.