baber/WOPTO huggingface dataset:
Patent GB-313287-A (GB)
Title: Vehicle brake mechanism
IPC: F16D65/22
Filed: 1928-05-18
Abstract: 313,287. Pullin, C. G., and Groom, S. L. May 18, 1928. Band.-The anchor plate of a brake band or equivalent for vehicles is pivoted to a fixed part so as to move with the wheel adjustment, the location of the pivot being such that the movement does not interfere with the brake mechanism. In an arrangement for the rear wheel of a chain driven motor cycle the anchor plate 2 for the brake band 6 comprises an arm 10 carrying a hydraulic cylinder 13 for operating the brake and is pivoted at 9 to the frame part 8. The supply pipe 14 for the cylinder has a swivel joint which is coaxial with the pivot 9. The slot 12 in the frame for the adjustment of the road wheel spindle is curved about the pivot 9. The band 6 has a pin-and-slot engagement 4, 5 with arms 3 of the anchor plate 2. In another construction, in which the brake band is expanded by a cam between its ends the pivotal connection of the cam lever with the pull rod is disposed in line with the pivot 9 of the anchor plate.
Patent GB-812347-A (GB)
Title: Improvements in or relating to carburettors
Inventor: JUDSON CHARLES ALAN
IPC: F02M17/28
Filed: 1954-05-19
Abstract: 812,347. Carburetters. BIRMINGHAM SMALL ARMS CO. Ltd. Dec. 5,1955 [May 19, 1954], No. 14642/54. Class 7(3) The butterfly throttle valve is formed wholly or in part of porous metal or ceramic. As shown a passage in a porous throttle valve 22 is supplied with fuel by way of a main jet 17 which draws from a float chamber 3. The main jet incorporates a needle valve (not shown). Fuel is supplied by gravity to the float chamber. An air cleaner or filter may be fitted at 7. The porous valve may be made by powder metallurgy and/or powder ceramic methods comprising compacting under pressure followed if necessary, by sintering or firing treatment.
Patent GB-167035-A (GB)
Title: Improvements in locking devices for removable covers, cover-frames, or other detachable members
IPC: F16B3/04
Filed: 1920-05-31
Abstract: 167,035. Swinburne, F. R., Chalmers, T. E. B., and Beken, E. G. May 31, 1920. No Patent granted (Sealing fee not paid). Lanterns, glazing.-A removable cap A for securing the glass to a lamp is retained in position by a wire inserted endwise in an annular channel formed by a groove A<4> of semicircular cross-section in the cap, and a similar groove B<3> on the body of the lamp &c. Part of the groove A<4> is cut away, forming a slot A<5> for insertion of the wire D, and a projection B<4> is punched up in the groove B<3>. The cover A has a curved lip A<3> which presses on the rubber band C on the body, ensuring a firm grip of the wire in the grooves and preventing rattling. To disengage the members A and B, a piece of wire is inserted in the slot A<5> and pressed on one end of the wire D, causing its other end to ride over the projection B<4> and protrude from the slot A<5>, when it can be pulled out by pliers.
Patent GB-428894-A (GB)
Title: Improvements in valve-fittings for hose lines
IPC: F16K17/00
Filed: 1934-05-16
Abstract: 428,894. Valve accessories. LENCKE, J. K., 29, President's Place, Kingston, New York, U.S.A. May 16, 1934, No. 14790. Convention date, May 19, 1933. [Class 135] To protect a fire-hose 8 against deterioration, a fitting 6, formed integrally with, or detachably screwed to a main stopvalve body 5 has a drain-opening 17, with a spring- opened ball-valve 18, closed automatically by the force of the water when the stop-valve is opened, the hose 8 being connected to the fitting 6 slightly above the level of the drain. An automatically-closed gravityball air-valve 40 provides ventilation for the hose when not in use. In one form the mainvalve is a gate-valve.
Patent GB-467624-A (GB)
Title: Improvements relating to turntables for dumb waiters, wireless sets or other objects
IPC: F16C19/10
Filed: 1936-05-25
Abstract: 467,624. Ball bearings. CHAPMAN, A. W. May 23, 1936, No. 14790. [Class 12 (i)] [Also in Group XIV] In a turntable for revolving show-cases, seats, frame aerials, &c. of the kind described in Specification 376,301*, [Group XIV], having the stator and rotor members held together by means situated near the periphery of the turntable, the stator member comprises inner and outer walls 3, 2 extending upwardly from a base 1 which rests directly upon the floor &c. and forms a track for ball-bearings 6, and the rotor 4 has a continuous flange 5 engaging the wall 2 of the stator to prevent separation. The rotor is grooved at 10 for the reception of the balls. The walls 2, 3 may be vertical with horizontal top flanges engaging the continuous flange on the rotor. The balls may engage directly with the article carried by the rotor, the flange of which then engages the inner wall of the stator.
Patent GB-528993-A (GB)
Title: Improvements in hand and other lamps for use with electric batteries
IPC: F21L4/00
Filed: 1939-05-19
Abstract: 528,993. Electric battery lamps. CURNOW, A. J. May 19, 1939, No. 14907. [Class 39 (ii)] A casing 1 carries one or more lamp holders 4, 4a, 4b, and contains a battery magazine device consisting of battery sockets 17 mounted on a common metallic base member 16 connected to one pole of all the batteries 18, and provided with a spring contact or contacts 24, 24a, 24b, each engaging a lamp bulb contact. The lid of the casing is provided with contacts 21 engaging the other pole of the batteries, and carries a switch 27 by which the batteries may be individually and successively connected in the lamp circuit. The base 16 fits in recesses at the bottom of the casing and is removable. The rotary switch 27 is electrically connected with the lamp holders 4, 4a. 4b, by conducting strips 14, 15. The lamps which are not in use are put out of circuit by screws 25, 25a. 25b, which act on the contact strips 24, 24a, 24b. A contact member 32 is arranged to be operated against a spring 33 to engage with the contacts of the switch 27 and connect all the batteries in parallel.
Patent GB-941042-A (GB)
Title: Improvements in or relating to regulating the flow of pulverised magnetic material along a duct
IPC: B23K9/32
Filed: 1960-04-28
Abstract: 941,042. Discharge of magnetic powder for welding machines. PHILIPS ELECTRICAL INDUSTRIES Ltd. April 28, 1960 [May 1, 1959], No. 14943/60. Heading B8S. Magnetic powder from hopper 2 falls down annular duct 50 and is discharged through annular gap 4 to form a coating around welding rod 9, the discharge being regulated by magnets 5, 6. The magnets are carried eccentrically within inner tube 3 by rotating shaft 7 driven from the driving rollers 10 of the welding rod so that the descent of the powder is checked first by rotating magnet 5 and then by rotating magnet 6, the rate of discharge being governed by the speed of rotation and in accordance with the speed of feeding of the welding rod.
Patent GB-1367389-A (GB)
Title: Electrochemical element for determining the oxygen content of gases
IPC: G01N27/406
Filed: 1972-03-30
Abstract: 1367389 Electro-chemical analysis ROBERT BOSCH GmbH 30 March 1972 [31 March 1971] 14958/72 Heading G1N A solid-electrolyte cell to screw through the wall of an I.C. engine exhaust pipe to determine oxygen in the exhaust gases is provided with a temperature controlled electric heater, and comprises a screwed steel cap 1 holding an insulator 3 e.g. of ceramic on which the cell 10 is mounted, and a perforated sheet steel protection cover 13. A Pt/PtRh temperature sensor 9 is attached to the base of the cell, and a rigid heating coil 5 surrounds the cell. A metal/metal oxide reference source 11 is contacted by an electrode 6.  The reference mixture may be Ni/NiO; Cu/ Cu 2 O; Co/CoO; Fe 3 O 4 /Fe 2 O 3  or FeO/Fe 3 O 4 . The solid electrolyte may be stabilized zirconia or thoria, or mullite (3Al 2 O 3  .2SiO 2 ). The outer electrode may be platinum or tungsten carbide, or high-temperature resistant oxides such as Fe 3 O 4 . The thermocouple controls the heater through a transistor switching circuit Fig.2 (not shown).
Patent GB-593290-A (GB)
Title: Improvements in or relating to fire lighters
IPC: F24B15/00
Filed: 1945-06-13
Abstract: 593,290. Firelighters. DAWSON, G. E. June 13, 1945, No. 14977. [Class 50] A piece of wood for making firelighting chips is grooved longitudinally through part of the thickness to form chips connected along the longitudinal edges which can be separated by breaking along the grooves. As shown a piece of wood is formed on both sides with longitudinal V or like shaped grooves in the direction of the grain by passing it through rollers with annular teeth. Chips are formed by breaking the wood at the weakened parts 4. Wood shavings impregnated with inflammable material may be stuck to the wood, or one or more sticks may be impregnated with or formed from inflammable material.
Patent GB-561705-A (GB)
Title: Improvements in or relating to radio-frequency output circuits of electrical transmitters
IPC: H03H7/24
Filed: 1942-10-26
Abstract: 561,705. Wireless transmitting systems. MACNAMARA, T. C., BEVAN, P. A. T., and MAYO, C. G. Oct. 26, 1942, No. 15021. [Class 40 (v)] [Also in Groups XXXVI and XXXVII] The radio-frequency output circuit of an electrical transmitter includes a protective device, responsive to variation in the currentvoltage ratio, or in the ratio of currents in the inductive and capacitative branches of the circuit, for removing the radio-frequency power in response to variation of said relationship from normal. As shown in Fig. 1, the aerial circuit G is fed through a transmission line F. A current transformer T loaded by a resistance R2 feeds a rectifier A1 and produces a direct current through a relay coil B1 proportional to the radio-frequency current. A potential divider C1 R1 across the line feeds a relay coil B2 through a rectifier A2 with a direct current proportional to the radio-frequency voltage. Under normal conditions the coils B1 B2 neutralize each other, but on the occurrence of an arc or other abnormal condition, the relay operates to close a circuit E for removing the radio-frequency power. The feed line may be balanced with respect to earth, Fig. 2 (not shown). In Fig. 3, the voltage across the resistance R2 and the voltage across the condenser C3 of the potential divider C1 C3 are applied to opposite corners of a rectifier bridge A3, and the relay coil B is connected across the other diagonal. No current passes through the relay unless the relative magnitudes or phases of the two voltages are abnormal, but the passage of current closes the circuit E to remove the radio-frequency power. In Fig. 4, the current transformer T feeds a condenser C4 and a resistance R2 in series. The ungrounded terminal of resistance R2 is connected through a variable condenser C6 to one end of a transformer primary coil with its mid-point grounded ; and the ungrounded terminal of the condenser C4 is connected through a second variable condenser C5 to the other end of the transformer coil. A point on the capacity voltage-divider C1 C3 is connected through a resistance R4 to the latter end of the transformer coil. The secondary coil T5 of the transformer is connected through a rectifier to the powertripping relay. The variable condensers C5, C6 are adjusted to give a balance in the transformer, and the resistance and reactive components of the load impedance may be read off from the calibration of these condensers. In a modification, Fig. 5 (not shown), the rectifiers A1 A2 are fed by transformers connected in the inductive and capacitative branches of a tuned circuit fed by push-pull amplifiers and coupled to the aerial feeder.
Patent GB-475944-A (GB)
Title: Improvements in and relating to means for suspending electric cables from messenger wires
IPC: H02G7/06
Filed: 1936-05-28
Abstract: 475,944. Suspending cables. REDIFFUSION, Ltd., RICHARDS, E. A., and NEWALL, J. S. May 28, 1936, No. 15091. [Class 36] A cable is secured to a messenger wire or support by means of a strip member 15 having a slit 17 therein, the strip 15 being looped first round the cable or the support and the free end of the strip passed through the slit, and then similarly looped round both said cable and support. A saddle member 18 having projections 19 may be arranged on the support, the strip member 15 passing over the saddle and between the projections 19.
Patent GB-843244-A (GB)
Title: Life raft
IPC: B63C9/02
Filed: 1958-05-12
Abstract: 843,244. Inflatable rafts. GOODYEAR TIRE & RUBBER CO. May 12, 1958 [Oct. 24, 1957], No. 15121/58. Class 113. An inflatable life raft comprises two congruent endless inflatable buoyant sections 1 and 2 having a horizontal deck 3 of fabric or the like extending along the mid-plane between them, the sections are so arranged or constructed that at least part of one buoyant section is horizontally disposed relative to the other to provide at least one boarding station. In the arrangement shown, the sections are of substantially elliptical shape arranged with their major axes at right angles thus providing two opposite boarding stations irrespective of which way up the raft is launched. Additional steps 8 may be provided at the boarding station together with hand grips 9. The buoyant sections may be of a substantially regular polygonal shape with the sections translated with respect to each other or the sections may be regular polygons with the exception of one inset section as in Fig. 3 (not shown).
Patent GB-690627-A (GB)
Title: Improvements in or relating to apparatus for sterilizing or heat treating material, particularly hospital dressings or the like
Inventor: INGLIS WILLIAM MORLEY
IPC: A24B15/18
Filed: 1950-06-19
Abstract: 690,627. Measuring temperature electrically. NOTTINGHAM THERMOMETER CO., Ltd. June 19, 1951 [June 19, 1950], No. 15275/50. Class 40 (i). - The temperature of a mass of yielding material 6 in a heated container 1 is determined by a temperature-sensitive probe comprising a needle thermocouple 5 attached via a flexible, sheathed cable 4 to an external meter 8. The cable, 4 passes through a connector 14 fitted into the door 3. of the container 1, and is secured to a brass elbow 13, the other end of which is brazed to a narrow stainless steel tube with the hot junction of the thermocouple at the extreme end.
Patent GB-1144435-A (GB)
Title: Method of and apparatus for opening film cartridges
IPC: G03D13/00
Filed: 1966-04-06
Abstract: 1,144,435. Unpackaging. EASTMAN KODAK CO. 6 April, 1966 [8 April, 1965], No. 15329/66. Heading B8C. [Also in Division G2] Exposed photographic films are removed for processing from permanently sealed plastic cartridges consisting of a plastic box-like member having an open end in which a roll of film is confined by a plastic cover member sealed to said open end by rupturing the seal between the two members and then pulling the two members progressively apart from the ruptured seal to the opposite edge which acts as a hinge. In an embodiment a cartridge (C) (Figs. 1 and 2, not shown) as described in Specification 1,096,300, comprising a box like member 10 having recesses (18) and a flanged bottom (13) to which is sealed a cover 11 forming a flange 12, is fed (Figs. 3 and 4, not shown) from a tray (39) to a table (40) of a cartridge opening apparatus, and is transported by a pusher (74) of a ram (70) between a fixed plate 50 and a hinged platform 43, the plate and platform are spaced apart so that the flange (14) of the cartridge bottom (13) engages the edges of a notch (52) in plate 50 and the flange 12 engages a pair of offset clamps 45 on the platform 43 (Fig. 5); the platform 43 is also provided with a pair of blades 47 and a serrated plate 48 which rupture the seal between the box-like and cover members of the cartridge as it is pushed between the plate 50 and platform 43; the platform 43 is then lowered about its pivots 44 by a handle 60 to sever the cover member 11 from the box-like member 10 until they are only joined at a single edge (20) which acts as a hinge; the film F is then removed from opened cartridge, a hinged notched plate 59 being provided to prevent the spool on which the film is wound being pulled off or rotated too fast; when the film has been removed the platform 43 is again raised and the empty cartridge ejected by fingers 105 which engage the recesses (18) in the cartridge; a latch member 66 on plate 50 maintains the platform 43 in its raised position, the latch being released by an entering cartridge an electrical circuit operated by a cam (91) for controlling the apparatus is described, (Fig. 7, not shown). In another embodiment (Figs. 8-11, not shown), the seal is broken with a heated knife (150) and the opened cartridge is heat set in an open position so that the film may be removed from the cartridge outside the cartridge opening apparatus.
Patent GB-618446-A (GB)
Title: Improvements relating to flexible electric wave guides
IPC: H01P1/04
Filed: 1946-05-21
Abstract: 618,446. Wave guides. SAXON, G., MILLING, M. C. CROWLEY-, and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. May 21, 1946, No. 15369. [Class 40 (v)] Two sections 1, 2 of a wave-guide are flexibly connected by a cavity recessed outwardly around the guide, comprising two flexible metallic side walls 3, 5 and a peripheral metal wall 7 parallel to the wave-guide axis, the cavity having such a depth (e.g. a half-wavelength) that no reflections are produced. Several adjacent sections may be similarly connected, the cavities being spaced at quarter wavelength intervals. Specification 586,458 is referred to.
Patent GB-853121-A (GB)
Title: Improvements in or relating to x-ray apparatus
IPC: G02B27/02
Filed: 1957-05-15
Abstract: 853,121. X-ray apparatus. MUNRO, D., and SCOTT, J. June 4, 1958 [May 15, 1957], No. 15383/57. Class 98(1) In an X-ray apparatus in which an image is produced on a viewing screen, the image is viewed through a filter of a colour corresponding to the peak emissivity wavelength of the screen, so that the definition of the image is improved by cutting off stray rays of differing wavelengths. Thus if the screen fluoresces green, a green filter may be used. The effect can be enhanced by providing ambient illumination which in this case is a combination of pink and deep blue, i.e. colours which neither contain nor make up green. The filter may be sandwiched between sheets of thin polarized glass, to reduce reflection. The filter may be formed by a tinted lens, so as to produce magnification at the same time. In the modification of Fig. 7, which includes an image intensifier, the X-ray screen 1 is such as to give a high proportion of ultraviolet radiation. The intensifier 22 is an electroluminescent panel, producing an intensified green image, which is then viewed through a green filter 25 as before. For convenience, the image is reflected by a mirror 24.
Patent GB-333891-A (GB)
Title: Improvements relating to apparatus for heating water or other fluids
IPC: F24H1/20
Filed: 1929-05-17
Abstract: 333,891. Wilson, L. A. May 17, 1929. Internally-fired boilers.-A water or other liquid heater 16 contains a helical flue 11 through which the products of combustion from a burner 14 are drawn in a downward direction by a fan 26, the operation of which and the operation of the fuel supply valve are controlled by a thermostat 43 in the heater. When water is withdrawn from the top of the heater through pipe 24 and cold water admitted through pipe 23, the outer tube of the thermostat contracts and pushes an inner bar 45, Fig. 6, against a lever 46, which, acting through further levers, tilts a mercury switch 53 completing the circuit through a motor 71 operating the fan, and through a solenoid 31 operating the fuel-supply valve of the burner 14, which has adjustable openings 35 for the admission of air, and a flared deflector 38 for the combustion gases. To retard the opening of the fuel-supply valve to give the igniting coil 42 in the motor circuit time to become hot and to allow the fan to get up speed, a second switch in the circuit operated by governor mechanism on the motor shaft is closed only when the motor is running at a high speed. In a modification, the governor mechanism 90, Fig. 5, on the motor shaft 73 is directly connected by a rod to a sliding fuel-supply valve 111.
Patent GB-529777-A (GB)
Title: Improvements in or relating to television transmitting and like cathode ray tubes
IPC: H01J29/43
Filed: 1939-05-24
Abstract: 529,777. Cathode-ray tubes. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 24, 1939, No. 15475. Convention date, June 15, 1938. [Class 39 (i)] In a television transmitting or like cathode ray tube the screen comprises a conducting plate having on its image-receiving side a directlydeposited continuous layer of an insulating dielectric material which has been previously reduced to a powdered form. The powder may have a superposed layer of mosaic of the usual discontinuous photo-sensitive elements of the usual form. The screen 7 in the form shown in Figs. 1 and 2 consists of a signal plate 9, of polished metal or of glass coated with evaporated aluminium or chemically-deposited platinum, which carries a layer 11 of China clay sprayed on or deposited from a suspension by settlement or cataphoresis. The screen may be sensitized within the tube by evaporation of silver from tungsten heaters 17, oxidation and subsequent coating with caesium 18. The powder employed should be fine grained, chemically inert, of low vapour pressure and of high resistance, and alternatives to china clay are powdered mica, quartz, aluminium silicate, titanium dioxide and magnesium oxide. Smoking the screen with the products of a burning metal or coating it by evaporating an insulating material are disclaimed. If deposited by cataphoresis, a dispersing agent is used, such as about 0.1 per cent of nitrocellulose in a china clay suspension in acetone or a few drops of ammonia in a water suspension. Binders may be used with some types of powder. There is no critical thickness for the powder layer but as an example a thickness of 2 mils is given for china clay in a tube as shown in Fig. 1. The tube shown in Fig. 4 has, in addition to the electron gun comprising a cathode 22, control electrode 23 and first and second anodes 24, 26, an image tube section comprising a transparent photosensitive cathode 31, focusing electrodes 32, 33 and accelerating electrode 34. The screen consists of a conducting signal plate 28 with a powdered surface 29, as described above. This surface need not be sensitized although, in practice, it may become so by deposit of some photo-sensitive metal when the cathode 31 is sensitized.
Patent GB-707046-A (GB)
Title: Improvements in or relating to electric switchgear boxes
IPC: H02B1/36
Filed: 1950-06-21
Abstract: 707,046. Switchgear structures. ANDERSON, A., and ANDERSON, BOYES & CO., Ltd. June 21, 1951 [June 21, 1950], No. 15478/50 Class 38(5) In a box 2 housing a switchgear unit 4 on guide rails 1, the guide rails are each provided with a hinged extension 5 with which is associated a catch element 10 engageable with the frame of the unit to hold it in position in the box. Each catch element 10 has a slot 11 co-operating with a pin 12, a face 13 which engages with an abutment on the frame of the unit 4 and a face 14 and tooth 15 which co-operate with a cam 7 and notch 9 on the associated extension 5. To withdraw the switch a door 3 is opened and the extensions 5 are turned downwardly until projections 8 thereon abut fixed stops 17. During this movement of the extensions the cams 7 are withdrawn from engagement with the faces 14 so allowing springs 16 to withdraw the catches 10 into positions where they are in alignment with the rails with their teeth 15 engaged in the notches 9. The unit 4 may then be slid horizontally out of the box on the rails 1 and extensions 5. When the unit has been slid back into the box and the extensions 5 are turned up again, the sides of the notches 9 bear on the teeth 15 to turn the catches 10 so that their faces 13 are raised above the level of the guide rails. The cams 7 then engage the faces 14 to lock the catch elements 10. If the unit 4 had not been pushed fully home before the extensions 5 were raised, the cams 7 in moving the elements 10 towards the unit cause the elements 10 to thrust the unit 4 fully home.