baber/WOPTO huggingface dataset:
Patent GB-1015486-A (GB)
Title: Improvements in or relating to fans
IPC: F04D29/42
Filed: 1962-08-09
Abstract: 1,015,486. Transverse-flow and centrifugal fans. B. ECK. Aug. 9, 1962 [Aug. 9, 1961; Feb. 8, 1962], No. 30471/62. Heading F1C. A fan for the production of free jets of air comprises a drum-shaped rotor and a guide surface which extends in spaced relationship from the rotor periphery, there being at least at one end of the rotor either no side wall to the guide surface, or a side wall which extends from the guide surface over a portion of the rotor circumference to cover a part only of the end of the rotor. In the fan shown in Fig. 6, a spiral guide surface 2 surrounding the drum-type rotor 1 is open at both sides to allow entry of air to both ends of the rotor. The lower edge 9 of the guide surface 2 is inclined as shown so that the size of the exit increases from the centre towards both ends. Fig. 7 shows a fan in which the guide surface 2 is divided into three spiral parts to provide three exits. The fan shown in Figs. 10 and 11 comprises a spiral guide surface 2 and a side cover 3 partially surrounding the rotor 1, air being drawn into the rotor at its one open side and also at its periphery, i.e., the fan is partly of centrifugal type and partly of transverse-flow type. The air is discharged between the spiral guide surface 2 and a guide member 11. As shown in Fig. 10, frusto-conical inlet guides 17 may be provided. Parts of the rotor periphery not covered by the spiral guide surface 2 may be provided with guide blades to provide twist or countertwist to the inflow. In a modification, Fig. 13, the side cover 3 extends over about a quarter only of the rotor circumference, while the spiral guide surface embraces about three quarters of the rotor circumference. The distance of the spiral guide surface from the rotor periphery initially decreases, starting from the guide member 11, and subsequently increases again. Electric heaters 16 are provided in a discharge duct 15. In a further embodiment, Fig. 14 (not shown), the guide surface comprises a flat wall adjacent the rotor periphery.
Patent GB-366943-A (GB)
Title: Improvements in or relating to electric gramophone motors
IPC: H02K21/22
Filed: 1930-11-04
Abstract: 366,943. Gramophones. HEASMAN, H. J., 5A, Ferndale Road, Leytonstone, London. Nov. 4, 1930, No. 30484/31. Divided on 366,566. [Class 40 (ii).] A synchronous electric gramophone motor has pairs of permanent magnets b incorporated in the turntable a to form the motor rotor. In the form shown, the rotor spindle a3 is mounted in ball bearings c, c1 in the stator which is of the imbricated-pole type. Specification 366,566, [Group XXXV], is referred to.
Patent GB-953281-A (GB)
Title: Photoelectric exposure control in photographic cameras
IPC: G03B7/12
Filed: 1962-08-09
Abstract: 953,281. Photo-electric control of camera exposures; shutters. EASTMAN KODAK CO. Aug. 9, 1962, No. 30541/62. Heading G2A. A camera includes a disc 74 having an arcuate tapered opening 76 rotatable from an initial position in which the disc closes the camera objective 54, drive means for rotating the disc to align successively wider parts of the tapered opening with the objective, an abutment 56 disposed in accordance with the position of an indication member 20 of a photo-electric exposure meter to limit rotation of the disc, and means for returning the disc thereafter to the initial position. Preferably the disc also acts as a shutter, the exposure time being determined by the duration of alignment of the tapered opening and the objective. As shown the shutter driving means consists of a member 64 having a drive spring 66 which is moved into the cocked position shown by a knob 84 and held cocked by the camera release 22. On initially depressing the trigger 22 a spring-driven follower member 28 rotates anticlockwise until it engages the meter needle 20 and through gearing rotates clockwise the member 52 carrying the abutment 56 and also serving as a cover blade. On fully depressing the release, the tip 70 of the member 64 is moved downwardly and strikes the ear 72 on the disc 74 releasing its latch spring 82 from the fixed pin 78. When the ear 72 strikes the abutment 56 it rebounds to close the exposure aperture aided by a return spring 80 (Fig. 2 not shown). After freeing the release the shutter drive is reset to return the parts to the position shown the tip 70 sliding under the ear 72.
Patent GB-742993-A (GB)
Title: Improvements in or relating to indexing devices, more particularly for stitch-welding
Inventor: SANDIFORD FREDERICK GERALD CAR
IPC: B23K11/10
Filed: 1952-12-02
Abstract: 742,993. Welding by pressure. BRISTOL AEROPLANE CO., Ltd. Dec. 21, 1953 [Dec. 2, 1952], No. 30549/52. Class 83 (4). An indexing - device moves the workpiece on a stitch-welding machine step-by-step in an orbit of varying curvature. The fixed base 31, Fig. 1, of the device is mounted on the support 26 for the lower electrode 27 and carries an annular ratchet-wheel 35 rotated step-bystep by a pawl driven by reciprocating the wire of a flexible cable 46, One of a number of exchangeable housings 60 of different internal shapes is attached by spring clips 64 to the fixed base 31. A member 65 rotatable in the housing 60 has projections 66 engaging slots 53 in the ratchetwheel 35 and a groove in which slides a follower 68 urged by a spring 70 against the internal surface 69 of the housing 60 which constitutes a cam shaped to produce the required orbit. The workpiece 21 is supported on the lower electrode 27 by the operator and is moved by a holder 80 in ball-and-socket connection with a peg 75 carried by the follower 68. Rotation of the workpiece 21 in a horizontal plane is prevented by the engagement of a spring-loaded slide 85 with a flat surface on the holder 80. The movements of the indexing device are synchronized with the vertical reciprocation of the moving electrode. In a modification the fixed electrode passes through apertures in the ratchet-wheel 35, the rotatable member 65 and the follower 68, and the peg 75 is indexed around the fixed electrode. The rotatable member 65 has a cam engaging a rod actuating a switch which interrupts the welding circuit and stops the indexing device. In a further modification, Fig. 5, the ratchet wheel 118 has a shaft 119 passing through the support 113 for the fixed electrode 114 and carrying an exchangeable cam 120. The pawl is reciprocated by a pneumatic motor 127, the return stroke of which is limited by a stop 134 engaging the cam 120. Thus, the length of each stroke of the pawl is determined by the cam 120 which is designed so that the workpiece is moved the same distance at each step of the indexing device. In this modification instead of the spring-loaded follower 138 directly engaging the inside of the housing 115, the peg 142 carried by the follower 138 has a roller engaging the edge of a cam aperture 145 in an exchangeable plate 146 detachably secured to the housing 115. The mounting 246 for the workpiece may include a pivoted framework to facilitate welding of curved surfaces.
Patent GB-648115-A (GB)
Title: Improved apparatus for coiling elongated vitreous tubing
IPC: C03B23/06
Filed: 1948-11-25
Abstract: 648,115. Glass. BRITISH THOMSONHOUSTON CO., Ltd. Nov. 25, 1948, No. 30619. Convention date, Nov. 25, 1947. [Class 56] Comprises means for bending a preformed length of glass tubing, e.g. for a fluorescent lamp, into a double helix which may be of the form shown in Fig. 4 or may comprise a conical or flat double spiral. After the tube has been uniformly heated it is engaged at its mid-section and both ends are then helically coiled in the same direction about a common axis. In the apparatus shown in Fig. 2 the tubing 2 is supported upon two elongated driven rollers 4, 5 carried by a frame 23 tiltable as a whole about the axis of the roller 4. When the frame is in the vertical position shown, it registers with an electric oven 7 carried on pivoted arms 10; when the glass is sufficiently soft the oven is raised and the frame 23 is swung counter-clockwise so that the tubing rolls off the rollers and down an inclined guide plate 40 until it lies across the horizontal upper end of a vertical drum 3 with its mid-section riding into a transverse groove 43<SP>1</SP> between the ends of opposite raised guide lips 43 on the drum, and its ends projecting beyond the periphery of the drum and resting on a tray 41 level with the upper end of the drum, a circular aperture being provided in the tray concentric with the drum. The lips 43 are at the ends of a pair of parallel helical grooves 77, 77<SP>1</SP> formed in and alternately spaced around the drum. The drum is now rotated and simultaneously raised along its axis and the ends of the tubing contact and are guided and pressed by rollers 75, 76 so that the tubing engages and is held in the grooves and assumes the double helical shape as the drum rotates and rises. After cooling, the drum is rotated reversely whereby the coiled tube can be unwound from the drum. Air under pressure may be blown into the tubing towards the end of the coiling to maintain its circular cross-section. In the form shown in Fig. 8 a completed straight fluorescent lamp 92 may be coiled, the ends of the lamps being connected to chucks 96 through which neutral gas is passed for protecting the fluorescent coating during heating. The tray 41 is replaced by a pair of oppositelydriven endless belts 105, 106 which positively assist the movement of the ends of the tube towards the guide and pressure rollers 75, 76 and the drum 3 thereby reducing any strain on the chucks and associated parts. Fig. 12 shows the shape of the former 3" used when a conical double spiral tube is required. Such spiral may be converted into a flat spiral by reheating and compressing it axially. The guide and pressure rollers 76<SP>11</SP>, Fig. 12, are mounted so that they may follow the conical grooves of the former.
Patent GB-499531-A (GB)
Title: Improvements in or relating to spring mattresses, seats and the like
IPC: A47C23/155
Filed: 1937-11-09
Abstract: 499,531. Spring surfaces. CROWN BEDDING CO., Ltd., and WALLIS, L. S. Nov. 9, 1937, No. 30692. [Class 52 (iv)] Wires a, b are twisted at intervals alternately right- and left-handedly and opened intermediately to form loops e. The loops are linked together and the meshwork connected to the frame by springs g.
Patent GB-780436-A (GB)
Title: Anti-lift coupling device
IPC: B60D1/26
Filed: 1954-10-25
Abstract: 780,436. Vehicle draw-gear. BEAUDOING, N. J., and PROTCHE, R. P. H. Oct. 25,1955 [Oct. 25, 1954], No. 30736/54. Class 103(5) The draw-gear between a semi-trailer 2 and a tractor 1 comprises a bar 1a attached to the tractor at 3 and pivotally connected by links 5, 5a to the draw-bar 1. Normal towing forces are taken by the chain 11. To facilitate coupling the links may be held in the folded position by a spring- urged latch 12 engaging a pin 14 on the link 5.
Patent GB-136551-A (GB)
Title: Improvements in or relating to Identification or Marking Devices for Rolls of Drawings or the like.
Inventor: ULRICH CHARLES BENJAMIN
IPC: G09F3/18
Filed: 1919-12-09
Abstract: 136,551. Ulrich, C. B. Feb. 12, 1914, [Convention date]. Label holders.-A circular label 20 is adapted to be held by flanges 7, 8 on a disk which has tongues 9 cut out of it to form means for attachment to the yoke 14 of a spring clip, Fig. 5. The wall of a roll of drawings, maps, or the like is inserted between the arms 12, 13 of the clip. In a modified construction, Fig. 9, a supporting tongue 11<a> formed in one with the disk 6<a> is adapted for insertion between the sheets of the roll.
Patent GB-446289-A (GB)
Title: Improvements relating to braking apparatus for railway and other vehicles
IPC: B60T8/74
Filed: 1934-10-27
Abstract: 446,289. fluid - pressure brakes. TOMLINSON, A. V., 65, Victoria Street, Westminster.-(White, J. ; 5, Edward Street, Concord, near Sydney, and Westinghouse Brake Co. of Australasia, Ltd. ; George Street, Concord West, near Sydney, Australia) Oct. 27, 1934, No. 30889. [Class 103 (i)] The braking effort of fluid-pressure brakes exerted on the wheels of an axle or axles subject to similar conditions of adhesion is automatically determined by an inertia control valve according to the pressures obtaining between the wheels and the track rails during braking. When a vehicle is braked, the pressure between the front wheel and track is increased and between the rear wheels and track is decreased, therefore according to the invention the brake cylinder pressure acting on the rear wheels is limited by means of a valve operated by an inertia governor to prevent sliding of the rear wheels. In Fig. 1, brake cylinders 1, 2 are on the front bogie and brake cylinders 3, 4 on the rear bogie. When the vehicle is travelling from right to left and the brakes are applied, the supply to the rear cylinders 2, 4 of each bogie through a passage E is cut off by a valve 8 operated by a pendulum 6 only a supply at a reduced pressure is permitted through a spring check valve 15. When the vehicle is travelling from left to right the cylinders 1, 3 are similarly controlled by the valve 8, a passage C and a check valve 17. Pressure fluid for braking is supplied by a pipe G to the chamber D containing the pendulum 6 and then to passages C, E. The pendulum 6 is locked when the brakes are not applied by the conical end of the piston rod of a spring- pressed piston 25 adapted to be depressed to free the pendulum on brake application by the pressure in the chamber D. In a modification, two further inertia controlled valves are arranged in the system so as to compensate for the difference of wheel adhesion of the two bogies each considered as a whole.
Patent GB-686632-A (GB)
Title: Planographic printing plate and treatment thereof
Inventor: FROST FREDERICK HAZARD
IPC: B41N3/03
Filed: 1950-12-19
Abstract: 686,632. Printing surfaces. WARREN CO., S. D. Dec. 19, 1950, No. 30904/50. Class 100 (ii). A process for improving a planographic printing surface including a reducing organic material comprises wetting the surface with an aqueous solution of a water-soluble permanganate, the solution being substantially free of non- volatile organic film-forming material and reacting with the organic material to form a compound of manganese of lower valence, and drying the surface with the compound of manganese of lower valence thereon. The surface consists of an organic hydrophilic colloid, which may be in the form of a film on a metal or paper base, or may consist of uncoated paper itself. The permanganate solution is reduced on the surface either by the action of organic matter contained therein or by the action of a previously applied reducing layer so that an insoluble manganese compound is formed so as to form an integral part of the surface of the plate, which, it is stated, serves to improve retention of water on the surface of the plate, improve resistance of the surface to soiling or toning by ink, and improve image-life upon the plate. The permanganate may be used in conjunction with such water soluble salts of the multivalent metals as do not effect a reduction of the permanganate before application, e.g. chlorides, nitrates, and sulphates, and particularly cupric chloride and ferric chloride. A finely divided inorganic pigment may also be added to the solution, e.g. silica aquesol. The image is applied after treatment of the surface. U.S.A. Specifications 2,088,893 and 2,375,738 are referred to.
Patent GB-723084-A (GB)
Title: Improvements in and relating to electrical plug-in connectors
Inventor: HEATH CLARENCE WILLANS
IPC: H01R13/646
Filed: 1952-12-08
Abstract: 723,084. Two-part couplings. CARR FASTENER CO., Ltd. Oct. 20, 1953 [Dec. 8, 1952], No. 31092/52. Class 38 (1). A plug for concentric cables comprises a sheet-metal tubular pin 3 to which the central conductor 9 of the cable is soldered at 11, and which is held in a metal sleeve 1 by apertured insulating discs 4, 5 abutting a flange 2 on the sleeve and retained between rib 6 and a flared end 7 of the pin 3, a washer 8 being interposed between the discs. A metal housing 14 soldered to the cable sheath 10 connects it to the sleeve 1, and a disc 17 having a metal cover 18 forms a finger grip. An annular groove 20 in the sleeve receives means provided on a corresponding socket member, but the groove may be replaced by an embossment or embossments to co-operate with a groove on the socket.
Patent GB-1077733-A (GB)
Title: Improvements relating to glazing, cladding and the like
IPC: E04D3/08
Filed: 1964-08-04
Abstract: 1,077,733. Glazing bar assemblies. SMITH & PEARSON Ltd. and A. I. PEARSON. Aug. 4, 1964 [Sept. 26, 1963], No. 31094/64. Heading E1R. An astragal comprises an extruded aluminium section as shown, with the ends of the cross flange 2 adjacent the central gap 12 formed by the inverted U-shaped junction 3 with the web 1, provided with sharp triangular shaped lips 11, which extend into the said central gap so that a bolt head for securing the astragal to a purloin &c. deforms these lips 11, and precludes any sliding movement of the section. The glass sheet or cladding panel 25 is bedded on oiled asbestos cords 26 sitting in the channels 10, 10' and are held from slipping by a T-shaped stop 27 the stem 28 of which is bifurcated to engage with the web 1 and a `spirol' pin 30 which passes through aligned holes 29 in the web 1 and stem 28, and the glass &c. 25 is held in position by a weather wing 31 of resilient plastic moulding engaging over the projections 4, 5 and pressing on the glass &c. 25 with an arm 34.
Patent GB-863136-A (GB)
Title: Production of conjugated diolefins
Inventor: OLDHAM WILFRED JOHN
IPC: C07C2/86
Filed: 1957-10-04
Abstract: In the preparation of conjugated diolefines by the vapour phase catalytic condensation of a mono-olefine containing up to 6 carbon atoms with formaldehyde or acetaldehyde, a molar ratio of olefine to aldehyde of at least 6:1 is maintained.  The preferred olefines are tertiary olefines or those which isomerise to tertiary olefines under the reaction conditions; specified are isobutene, 2- methylbutene-1 and 2- methylbutene-2.  Temperatures of 150-400 DEG  C. and any pressure, preferably atmospheric to 100 p.s.i. are used with contact times of 0,05-10, preferably less than 5 seconds. An inert diluent may be present e.g. water vapour (particularly with formaldehyde by using formalin), nitrogen, carbon dioxide or lower paraffins in amounts up to 95 volume per cent.  The preferred catalysts are those described in Specifications 826,545, 826,546, 841,746, 841,747, 841,748, 863,138 and 863,139.
Patent GB-270246-A (GB)
Title: Improvements in or relating to valves
IPC: F16K5/22
Filed: 1926-12-08
Abstract: 270,246. Merco Nordstrom Valve Co., (Assignees of Nordstrom, S. J.). April 29, 1926, [Convention date]. Closure members, rotary conical.-A plug valve used for oils &c. having lubricating properties comprises a plug 4 having means, such as a compressed wad of asbestos 12 and ball bearing 18, for resiliently holding the plug in its seating, a valve controlled connection 31 to the liquid conduit at the smaller end of the plug, and means, such as the screw 46, for compressing the liquid above the plug and thereby forcing the liquid into the grooves 40 - - 43 to lift the plug in its seating to facilitate actuation and lubricate the working surfaces. In the event of the controlled liquid having no lubricating properties a lubricant gun can be applied to the valve controlled nipple 55 on the connection 31 to insert a lubricant.
Patent GB-247707-A (GB)
Title: Improvements in carburettors for internal combustion engines
IPC: F02M1/00
Filed: 1924-12-29
Abstract: 247,707. Claudel, C. H. Dec. 29, 1924. Spray carburettors. -The float chamber 2 is closed by a hollow cover 7 containing a filtering screen 14 and a flexible diaphragm 46, the fuel inlet pipe 13 being rotatably secured by a hollow bolt 41. The inlet 43 is situated near the bottom of the chamber T and above the convex screen 14 which is frictionally held in position by being attached to two rings 44, 45. Impurities collect around the base of the screen and can be readily removed by unscrewing the bolt 41 and washing the filter with petrol. The filter chamber is closed at the top by the flexible diaphragm 46 secured at the joints 47, 51 in the act of screwing up the assembling bolt 6. Air entering with the fuel collects under the diaphragm which is exposed to atmospheric pressure through ports 52, and thus the formation of an air lock is prevented. The air may be discharged by loosening the joint 51. The valve-controlled inlet 53 is situated above the bottom of the chamber T. Specification 241,853 is referred to.
Patent GB-1271426-A (GB)
Title: Improvements to slatted adjustable window blinds
Inventor: HATELY MAURICE CLIFFORD
IPC: E06B9/386
Filed: 1969-06-20
Abstract: 1,271,426. Slats construction for slatted blinds. M. C. HATELY. 5 June, 1970 [20 June, 1969], No. 31197/69. Heading E1J. A slat for slatted adjustable window blinds, e.g. venetian blinds or adjustable vertical slat or horizontal slat louvre blinds are internally composed of a thermally insulative substance C of non-connected cellular plastics, e.g. of expanded polystyrene or foamed polyurethane of low thermal conductivity covered on one or both surfaces A, B by a highly reflecting finish of polished metal, metallic foil or paint, either forming the rigid support for or merely adhering to the cellular plastics.
Patent GB-629777-A (GB)
Title: Improvements in net floats
IPC: A01K75/04
Filed: 1947-11-25
Abstract: 629,777. Fishing. PHILLIPS, J. W. Nov. 25, 1947, No. 31201. [Class 48] A globular metal net float a is approximately circular in plan and has a vertical profile of the form shown in Fig. 2, and has means c approximately at mid-length of the underside for attachment of a net. The cross-section on the line 3-3 is shown in Fig. 3. The float may be made of castaluminium halves welded together or may be formed of sheet steel pressings which may be heat-treated and tempered. A vertical tail fin d may be provided.
Patent GB-232284-A (GB)
Title: Improvements in or relating to the manufacture of bread
IPC: A21D2/14
Filed: 1923-12-12
Abstract: 232,284. British Arkady Co., Ltd., and Hewitt, H. Dec. 12, 1923. Cereal preparations.-Bread is made from flour to which has been added a small quantity of a harmless salt of lactic acid, such as calcium or magnesium lactate. One or two ounces of calcium lactate may be added to a< >sack of 280 pounds of flour.
Patent GB-724764-A (GB)
Title: Means for detaching closure caps or crown corks from bottle necks
Inventor: GRETTON-LOWE REGINALD
IPC: B67B7/16
Filed: 1952-12-10
Abstract: 724,764. Crown-cork removers. GASKELL & CHAMBERS, Ltd. Dec. 3, 1953 [Dec. 10, 1952], No. 31258/52. Class 125 (2). In a crown-cork remover comprising a plate a for attachment to a support c and a pair of upwardly inclined extensions i between which is pivotted a counterweighted claw f, the top of each extension is formed with a pair of oppositely directed surfaces j to which an inscription plate h is attached as by soldering in the position shown in either Fig. 1 or Fig. 3.