baber/WOPTO huggingface dataset:
Patent GB-151999-A (GB)
Title: Improvements in and relating to x-ray apparatus
IPC: H01J35/16
Filed: 1920-10-05
Abstract: 151,999. British Thomson - Houston Co., (Assignees of Langmuir, I.). Oct. 29, 1913, [Convention date]. R÷ntgen-ray tubes.-In a high-vacuum tube having an incandescent cathode, as described in Specification 14892/13, a screen is provided for adjustably controlling the focussing of the electron stream, for instance by means of a potential applied between the screen and the cathode. As shown, a nickel, iron, or tungsten screen 8, surrounding an incandescent cathode 2, is maintained at any desired potential by means of a continuouscurrent dynamo 15 with an adjustable resistance 25, and a change-over switch 18 for making the screen potential positive or negative with respect to the cathode. A battery or a source of static potential may be used instead of the dynamo. A negative screen potential produces sharp focusing, and a positive potential, if sufficiently high, may entirely prevent focusing. In a modification, an alternating potential is applied to the screen by means of a transformer, the primary of which is in parallel with the primary supplying current between the anode and cathode. According to the Specification as open to inspection under Sect. 91 (3) (a) an iron screen is adjustable in position by means of a winding outside the tube. This subject-matter does not appear in the Specification as accepted.
Patent GB-896481-A (GB)
Title: Improvements in and relating to sealing of centrifugal impeller pumps
IPC: F04D29/14
Filed: 1958-09-02
Abstract: 896,481. Stuffing-box substitutes. MURRAY, W. Sept. 2, 1958, No. 28212/58. Addition to 789,671. Class 122 (5). A seal for a centrifugal pump is formed by arranging for the wall 11 of the pump impeller to partition the impeller chamber in the radial sense and to carry blades 14 serving as seal blades on the side remote from that carrying the working blades 13 and for a member 6 carried by the pump shaft 5 to make rubbing contact with a ring 22 carried by an axiallydisplaceable wall 9 forming the wall of an annular space 16, the rotation of the impeller at sufficient speed being arranged to cause liquid in the seal blade space to be centrifuged away from the shaft 5 in the form of a liquid ring communicating with the annular space 16 and maintaining such a pressure therein that the wall 9 is axially displaced so as to lessen or eliminate the pressure contact between the member 6 and ring 22. The ring 22 is mounted on a member 18 which is fixed to the hub 20 of the member 9 and, when the pump is stationary, is caused by springs 10 to urge the ring against the member 6; liquid pressure in the pump may augment this action. The wall 9 is received in the annular space 16, and a sealing-ring 21 is arranged between the member 18 and a projecting portion 17 of the casing ; a small clearance is provided between the periphery of the wall 9 and the space 16 to provide communication between the seal blade space and the space 16, and notches or slots may also be formed in the periphery of the wall 9. In operation, liquid in the seal blade space is thrown outwardly to form a ring of pressurized liquid which seals the liquid in the pump and, through the peripheral clearance of the wall 9, increases the pressure in the space 16 until the pressure of the springs 10 is overcome and the ring 22 is withdrawn from the member 6; during this movement, the ring 21 performs a rolling movement until it is supported by a shoulder 24 of the member 18. The sealing-ring 21 may be replaced by a diaphragm or bellows and the springs 10 may be dispensed with, use being made of the sealing-ring 21 (or diaphragm or bellows) to exercise the necessary spring action to close the static seal. Specification 789,671 also is referred to.
Patent GB-599055-A (GB)
Title: Improvements in the colouration of textile materials of cellulose esters or ethers
IPC: D06P1/92
Filed: 1945-10-25
Abstract: Textile materials of a cellulose ester of an organic acid or of a cellulose ether are coloured by mechanically impregnating them with a solution of a dye in a mixture of water, aliphatic monohydride alcohol containing up to five carbon atoms, and an inorganic thiocyanate which is a swelling agent for the cellulose ester or ether, and thereafter steaming the materials.  The impregnated materials may be dried before steaming.  The alcohol may constitute from 55 to 75 per cent of the water and alcohol together, and the thiocyanate may be present in amounts from 1 to 3 per cent based on the weight of the dyebath.  The process is of particular merit when using acid dyes, but water-insoluble dyes such as the azo, anthraquinone and nitro-di-arylamine dyes may be used.  In an example, cellulose acetate satin fabric is padded with a dye liquor containing Artol Blue B, Chrysophenine and Cellit Fast Red BB in a mixture containing methylated spirit, water and ammonium thiocyanate in proportion 75 c.c. methylated spirit, 25 c.c. water and 5 gms. ammonium thiocyanate, and the fabric is then dried, steamed at 107 DEG C. for 15 mins., washed and finished in the usual manner.  The Provisional Specification refers to Specification 576,927.
Patent GB-305057-A (GB)
Title: Improvements in illumination devices for advertising and spectacular purposes
IPC: G09F19/00
Filed: 1927-10-24
Abstract: 305,057. Roberts, A. J., and Williams, W. G. Oct. 24, 1927. Lamps, rotating supports for.-A neon tube 4 is mounted on the shaft of an electric motor 2 and fed with alternating or with interrupted direct current so that when it rotates a word 6<a> on the tube appears stationary in one or more radial positions. The tube 4 forms a curved or straight radial arm, and other tubes, which may contain neon or mercury vapour, may be arranged in any disposition to rotate, with the tube 4. An adjustable rheostat. 18<b> is fitted for controlling the motor 2 when alternating current is supplied to the tube 4, and an interrupter adjustable by a knob 19<a> for controlling the frequency of interrupted direct current. Slip rings and brushes 7, 8 lead the current to the tube. The word 6<a> is formed of opaque or coloured letters on a sheet 6 carried on a frame 3 on one arm of the tube 4, the other arm being covered with opaque substance 5. The tube and frame 3 may be stream-lined.
Patent GB-804694-A (GB)
Title: Improvements in or relating to electromechanical oscillators
Inventor: ROBINSON KENNETH ARTHUR
IPC: H03B5/30
Filed: 1955-10-04
Abstract: 804,694. Reciprocating electric motors. LANCASHIRE DYNAMO ELECTRONIC PRODUCTS, Ltd. Jan. 4, 1957 [Oct. 4, 1955], No. 28302/55. Class 35. A tuning-fork for generating current of fixed frequency is maintained in vibration by a coil 2 fed from an amplifier 3 controlled by capacityinduced voltage from plates 4 facing the prongs of the tuning fork, thus avoiding coupling between the driving coil and the pick-off of the fork.
Patent GB-408641-A (GB)
Title: Improvements in electric discharge tube oscillation generators
IPC: H01J25/52
Filed: 1932-10-11
Abstract: 408,641. Thermionic valves. M-0 VALVE CO., Ltd., Marconi House, Strand, London, GOSSLING, B. S., and MEGAW, E. C. S., c/o General Electric Co., Wembley, Middlesex. Oct. 11, 1932, No. 28309. Drawings to Specification. [Class 39 (i).] A split-anode magnetron is provided with a grid between the cathode and the anode, and the grid is maintained at a potential relative to the cathode which varies, if at all, with a frequency not greater than that of any frequency with which the oscillations generated in the magnetron may be modulated for the purpose of transmitting signals. The grid, which may be connected to the cathode, may consist of one or more pairs of wires parallel to the cathode and mounted n one of its supports, or a spiral or mesh-cylinder grid may be used. The grid may be divided into several parts, each with a separate lead. Curves showing the effect of the grid upon the operation of a magnetron are given. Specification 391,739 is referred to. Reference has been directed by the Comptroller to Specification 351,419.
Patent GB-794213-A (GB)
Title: Improved safety harness for a passenger in a motor vehicle
Inventor: FIELDING ELI
IPC: B60R22/02
Filed: 1955-10-05
Abstract: 794,213. Hook fastenings; spring clips. KENYON & SONS, Ltd., W. Oct. 5, 1956 [Oct 5, 1955], No. 28317/55. Class 44 [Also in Group VII] An adjustable safety strap 11 for a passenger in a motor vehicle is provided with eyes 16 at its ends to engage with pegs 15 carried by spring wire clips 10 which are engaged over the back of a seat 12.
Patent GB-158411-A (GB)
Title: Improved means for holding-up rivets and the like
IPC: B21J15/36
Filed: 1919-11-15
Abstract: 158,411. Petrie, J. T., and John, E. B. Nov. 15, 1919. Riveting.-A device for holding-up rivets &c. has an electromagnet d in a groove in its base a for attachment to the work and a cylinder c for the holding-up plunger q. The device has a hand grip g, a switch f for the magnet, and a spring valve k to control the air or other fluid pressure.
Patent GB-1519332-A (GB)
Title: Process for the formation of metal images and products produced thereby
IPC: G03C5/58
Filed: 1975-07-07
Abstract: 1519332 Photographic processes KOLLMORGEN CORP 7 July 1975 [11 July 1974] 28498/75 Addition to 1394889 Heading G2C Metal images are produced by imagewise exposing a material comprising a support coated with a solution of pH between 2 and 4À1 containing (a) copper halide in an amount of between 0À9 and 25 milliequivalents of halogen per litre (i.e. 0À1- 2À5 g.p.l. of copper halide), (b) a reducible salt of a non-noble metal containing anions other than halide ions, (c) a secondary reducer which alone is incapable of reducing (b); and (d) a radiationsensitive compound which alone or with (c) is capable of reducing (b) on exposure, the exposure producing nuclei and applying a physical developer to deposit a metal image on the nuclei. Specified compounds (d) are ferric salts, dichromates and preferably anthraquinone disulphonic acid disodium salt. Copper acetate is the preferred reducible salt (b) and sorbitol is the preferred reducer (c) but other reducible salts and secondary reducers specified in Parent Specification may be used. The use of copper halide in the specified amount and at the specified pH range produces more stable metal images than Parent Specification. The metal image may be reinforced by subsequent electrolytic metal deposition.
Patent GB-363421-A (GB)
Title: Improvements in presses for the extrusion of metals
IPC: B21C35/06
Filed: 1930-09-24
Abstract: 363,421. Squirting. HENLEY'S TELEGRAPH WORKS CO., Ltd., W. T., 11, Holborn Viaduct, London, JUDGE, E. E., 66, Pelham Road, and FRY, F. H., Hanbury, The Avenue, both in Gravesend, Kent. Sept. 24, 1930, No. 28629. [Classes 83 (iii) and 83 (iv).] Attachments for drilling ; cutters.-An extrusion press for forming tubes, especially for coating cables, has a cutting attachment comprising a tubular cutter which may be fed forward in the space normally occupied by the die to sever the residue. A lead-coating cable press comprises a lead chamber 1 fed from an inlet 4, the metal being extruded round a mandrel 10 and through a die by a hydraulic plunger 5. After the operation the die is removed and a cutting tool 18 is screwed in its place. Rotation of the tool by a splined worm wheel 20 thereby causes it to be fed forward to a position shown by an indicator carried thereon, in which the cutting- edge is separated from the mandrel by a thin shell only of metal. This shell may be broken through and the mandrel removed by a conical member 26 operated from the hydraulic ram of the press.
Patent GB-504285-A (GB)
Title: A new or improved device for measuring the contraction or expansion of gaseous masses
IPC: G01N7/00
Filed: 1937-10-21
Abstract: 504,285. Electric signalling systems SYNTHETIC OILS, Ltd., and AICHER, A. A. Oct. 21, 1937, No. 28723. [Class 40 (i)] In order to measure the expansion or contraction of a gas passing through a processing apparatus 2, the rate of flow in the incoming and outgoing pipes 1, 3 is measured by utilizing the difference in pressure in tubes 6, 7 to displace the liquid in the annular chamber 4, the chamber rotating against gravity or spring control, moving a pointer 9 over a resistance 10. The two rates of flow are indicated by galvanometers 12, 13 the current actuating them also passing to the coils of a differential galvanometer 14, which thus indicates the expansion or contraction which has taken place. The scales of galvanometers 13, 14 may be calibrated to allow for changes in density and composition of the gas after passing through the apparatus 2, or an electrical correcting network may be used. Alternatively, the compensation for change in density may be made by a device which determines the density of the gas and is electrically or mechanically coupled to the devices 9, 10 to correct the potential applied to the galvanometers 13, 14. The galvanometer 14 may operate an alarm if the volume change exceeds certain limits and according to the Provisional Specification, a barretter may be inserted in circuit with the resistances 10.
Patent GB-207520-A (GB)
IPC: B60B3/14
Filed: 1923-11-14
Abstract: 207,520. Compagnie d'Applications MÚcaniques. Nov. 24, 1922, [Convention date]. Attaching to permanent hubs; disc wheels; spring wheels.-Detachable wheels are secured directly to the brake-drum without overhang. In the form shown in Fig. 3, the wheel hub c has coned edges clamped between an off-set flange on the brake-drum a and a detachable flange ring g. The hub c may be formed in sheet or cast metal. Fig. 8 shows a modification in which the wheel consists of a single disc 17 flanged to form the hub. In modifications, the wheel comprises two discs which may be formed integrally with a hub such as that shown in Fig. 8. Interengaging driving-lugs &c. may be formed on any of the abutting surfaces of the wheel hub, brake-drum, or the clamping-flange. The disc portion of the detachable wheel may be formed of wood, compressed cork, rubber, or rubber-coated fabrics. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the modification shown in Fig. 26 (Cancelled), in which a plain disc wheel 27 is detachably bolted to a vertical flange 28 formed on, or secured to, the brakedrum a. This subject-matter does not appear in the Specification as accepted.
Patent GB-320751-A (GB)
Title: Improvements relating to tables
IPC: A47B13/00
Filed: 1928-10-06
Abstract: 320,751. Smith, A. G. R. Oct. 6, 1928. Tables combined with receptacles.-A table has a sliding top 1 on a framing 2 enclosed to form a receptacle 5 which has at the middle or some other convenient part a recess 6 adapted to receive cruets, jugs, or like tall articles. The top 1 is guided on the frame rails 4 by means of rabbetted bars 3. 'The recess 6 has a removable bottom 7.
Patent GB-635060-A (GB)
Title: Improvements in and relating to dynamo electric machines of the metadyne kind
IPC: H02K47/16
Filed: 1946-09-26
Abstract: 635,060. Exciting dynamo-electric machines. PESTARINI, G. M. Sept. 26, 1946, No. 28747. [Class 35] In a metadyne with load circuits connected across alternate pairs of brushes, the remaining brush pairs are included in closed circuits which may be direct brush connections 4, 5 or resistances. As shown, field coil 8 is in series with one motor across brushes a, b, while coil 9 is in series with the other motor across brushes c, d. Winding 6 is in a control circuit determining the current in the motor circuits while winding 7 is adjusted for speed control and its effective direction depends whether the speed of the machine is above or below a desired value. Specifications 635,062, [Group XXXVII], and 635,063 are referred to.
Patent GB-263108-A (GB)
Title: Improvements in or relating to gaseous electric conduction apparatus
IPC: H01J3/02
Filed: 1926-11-15
Abstract: 263,108. Raytheon Manufacturing Co., (Assignees of Smith, C. G.). Dec. 21, 1925, [Convention date]. Vacuum tubes.-A rectifier or other tube contains two gases, one more readily ionizable than the other and means for ionizing the former gas for starting. The easily ionizable gas may be the vapour of caesium or other alkali or alkaline-earth metal, and the other gas may be a monatomic one such as helium, say at a pressure of 1 cm. Ionization may be effected by light, radiated for instance from a filament F heated to 2200‹ C. by current from a separate secondary winding 13 of a transformer P, and preferably placed within the cathode C. Current through the filament F may be cut off or reduced after starting, or may be maintained during the whole operation of the rectifier. The cathode C may be closed except for an opening opposite the anode A, so that the ionized caesium &c. vapour accumulates within it at higher pressure than outside. In the bottom of the cathode is an insulating plug B through which the filament conductors pass. A shield X surrounds the cathode C. The spaces between the shield and anode A, and between both these parts and the wall of the tube, are too narrow to allow of appreciable ionization by collision within them. Specifications 246,036, 248,721, 248,722 and 263,109 are referred to.
Patent GB-1508838-A (GB)
Title: Slam lock
IPC: E05C1/08
Filed: 1976-06-29
Abstract: 1508838 Latches DOVER ROLLER SHUTTERS Ltd 29 June 1976 [8 July 1975] 28787/75 Heading E2A Latch bolt 28, with sliding lost motion at 32, is retracted by key or handle - operated lever 18 blocked by a stubber 26 on barrel lock 24 abutting collar 28 on rod 15 connected to another latch bolt.
Patent GB-209224-A (GB)
Title: Improvements relating to wind-screens for motor and like vehicles
IPC: B60J1/00
Filed: 1922-10-24
Abstract: 209,224. White, R. C. Oct. 24, 1922. Windscreens.-Relates to windscreens for motor and like vehicles of the kind which, for adjustment purposes, are supported from a front portion of the vehicle by extending and self-locking connections comprising on each side a pair of links 12, 13 pivoted at one end to the vehicle and at the other end to a third link or member 11 on which the screen 1 is pivotally mounted. According to the invention, the upper link 13 is made longer than the lower link 12, so that, when the screen is in its erected position, the linkage locks itself with the rear end of the link 12 bearing against the underside of the link 13. The links 11 are preferably made in telescopic parts 11<a>, 11<b> and are provided at their rear ends with conical projections 15 engaging conical sockets 14 on the windscreen standards 3 so that by means of wing-nuts 16 the screen can be fixed at anv desired inclination. The standards 3 are preferably of an L-section having lugs 4 between which side screens 6 are adjustably clamped by bolts 5 and nuts 9.
Patent GB-388851-A (GB)
Title: Improved means for supporting lamps in relation to tables and for similar purposes
IPC: F21V21/26
Filed: 1931-10-17
Abstract: 388,851. Clips. LLOYD, G. E., 1, Rockmead Road, Victoria Park, London. Oct. 17, 1931, No. 28875. [Class 44. The suspension rod for lamps &c. is adjustably supported along a radius bar by a clip which comprises a coil of wire with its ends shaped to form V-jaws 18 which resiliently and frictionally hold the bar 7 against the ring 3. The grip is released by pressing the two jaws towards each other. In a modification (not shown) the clip is similarly formed from sheet metal. In another modification shown in Fig. 9, a single piece of metal has one arm bent round and passed through the other arm to form V-jaws 18, and a hole 3 is drilled to receive the bar 4.
Patent GB-488779-A (GB)
Title: Improvements in electromagnetic interruptors
IPC: H01H51/34
Filed: 1937-10-22
Abstract: 488,779. Electromagnetic interrupters. BRITISH N. S. F. CO., Ltd. (Nurnberger Schraubenfabrik und Facondreherei) Oct. 22, 1937, No. 28876. [Class 38 (v)] An electric vibrator 1 is mounted in a sealed container filled with a gas such as hydrogen or nitrogen or with a liquid so as to prevent oxidation of the contacts. The vibrator is suspended by springs 3 from a frame 2 clamped at 6 to the foot tube of the glass container and blocks of cork 8 prevent vibration of the frame. If the gas is at low pressure the device is still more silent.
Patent GB-174148-A (GB)
Title: Improvements in and connected with eroders for use in cutting down sand banks and silt beds, also tearing up the roots of water and other weeds in rivers and the like
IPC: E02B3/02
Filed: 1920-10-13
Abstract: 174,148. Hardcastle, J. W., and Elwis, J. S., (trading as North & East Riding Engineering Co.), and Sleightholme, W. J. Oct. 13, 1920. Steering by paddle-whels.-In an eroder vessel propelled by a paddle-wheel h, the driving side of the paddle wheel is affixed to a short shaft s upon which is fitted a universal joint t and at the - other side is an arcuate mounting u for a nut v into which is threaded the shaft w of the steering wheel x, the steering of the vessel being thus effected by moving the propeller horizontally by its shaft about the joint t in either direction.
Patent GB-945590-A (GB)
Title: Sharpener for pencils
IPC: B43L23/08
Filed: 1962-07-27
Abstract: 945,590. Pencil sharpeners. H. H. HAMPTON. July 27, 1962, No. 29004/62. Heading B6P. A pencil sharpener especially for mechanical pencils, Fig. 11, comprises a tubular housing 100, a pencil tip guide member 105, and a cutter blade carrier 108. The carrier comprises a spring strip U-shaped member with arms 110, 111, with a cutter blade 112 (38 in Fig. 3) at the free end of each arm. The carrier 108 is loosely supported on a pin 106 in a part of the housing 100 that has a rectangular, internal section. A pair of radially opposed plungers 113 provides means for closing the ends of arms 110, 111 when the pencil is in place to be sharpened. The guide member 105 is positioned in a part of the housing 100 that has a circular, internal section, which enables the guide member to rotate within the housing. In a second embodiment, Fig. 8, the top guide member 83 is slidable as well as rotatable within the housing 80, and abuts against a flange 89 at the free end of arm 87 of the U-shaped cutter blade carrier 86. The other arm 88 of the carrier 86 is provided with a cam follower face 90 intermediate its ends, which rides in axial slidable contact with a cam face 91 of an adjustable set screw 92 mounted through the housing. The outward resilience of the carrier urges it upwardly against the guide member 83. When the guide member is depressed by inserting a pencil, the carrier is depressed so that the free ends of the arms come together applying the cutter blades 93 to the pencil lead. The housing 80 is slidably disposed in a guide casing 98 provided with a helical blade 94. Inserting a pencil into the sharpener will cause the housing 80 to telescope into the casing 98, mounted on a desk stand 98a, which will result in a relative rotation between the pencil and the cutter blades 93. In two other embodiments, Figs. 1, 2 and 4 to 7 (not shown), the cutter blade carrier is longitudinally telescoped into a second U-shaped strip member and the pencil tip guide member is slidable as well as rotatable within the housing of the pencil sharpener.