baber/WOPTO huggingface dataset:
Patent GB-1412909-A (GB)
Title: Process for the preparation of copper phthalocyanine
IPC: C09B47/067
Filed: 1974-06-20
Abstract: 1412909 Preparing copper phthalocyanine PRODUITS CHIMIQUES UGINE KUHLMANN 20 June 1974 [20 June 1973] 27313/74 Heading C4P Copper phthalocyanine is prepared by heating 4 moles phthalodintrile with about 1 mole of cuprous chloride at 140-300‹ C. in the presence of 10-30% by weight based on the phthalodinitrile of an ammonium salt which decomposes at 30-200‹ C. with liberation of ammonia e.g. ammonium carbonate, bicarbonate or sulphamate. An inert mineral salt, e.g. sodium chloride or anhydrous sodium sulphate may be present. The pigment is used to colour paints.
Patent GB-616622-A (GB)
Title: Improvements in or relating to gas-turbines and controlling means therefor
IPC: F02C9/18
Filed: 1946-09-11
Abstract: 616,622. Gas-turbine plant. GRIFFITH, A. A. Sept. 11, 1946, No. 27342. [Class 110 (iii)] A gas-turbine plant for aircraft is controlled by the manual regulation of the quantity of compressed air which byepasses the combustion chamber and the fuel supply is determined automatically by a thermostatic device responsive to the absolute temperature of the gases leaving the combustion chamber, or by such a device responsive to the rise in the temperature of the gases passing through the combustion chamber. Single rings of compressor and turbine bladings 10, 14, are carried by oppositely rotating freely mounted rotor discs. Air is delivered to an annular combustion chamber 12 through a conduit 11 and air may be byepassed through channels 27, controlled by valves 28, to mix with the gases from the combustion chamber in the annular passage 13. The supply of fuel from a source 22 is regulated by a thermostatically-controlled valve 25 with a thermometric device 26 in the combustion chamber. The fuel is distributed in the combustion chamber by a centrifugal atomizer 17 which is rotated by vanes 18 in the air stream. Fuel passes through radial pipes 24 and air passes along an annular conduit 19 into the chamber 21. In a plant having a circular assembly of a number of combustion chambers, each chamber is associated with a byepass conduit for the air. In combustion chambers having secondary air-inlets, the air may be byepassed to these inlets. An over-riding speed-governor control may be provided.
Patent GB-864902-A (GB)
Title: Improvements in or relating to wrapping material feed devices
IPC: B65B41/12
Filed: 1957-08-30
Abstract: 864,902. Feeding webs. AMERICAN MACHINE & FOUNDRY CO. Aug. 30, 1957 [Sept. 21, 1956], No. 27426/57. Class 100(1) A device for feeding wrapping material includes a source of wrapping material, support means for the material, drive means for the support means, the drive means and support means being relatively movably mounted into and out of direct driving engagement, a power source coupled to the drive means to feed material to a wrapping machine, and sensing means responsive to the feeding of wrapping material in excess of the demand therefor for decoupling the support means from the drive means, whereby the feeding of the material is interrupted. As shown, a roll 16 is supported by spool members 14 rotatable on a shaft 12. The roll 16 is braked by a friction block, not shown, engaging a flange 18 on one of the spool members 14; the braking force is adjustable by a screw, not shown, which presses the friction block into engagement with the flange 18. Web 32 unwound from the roll 16 passes around a continuously driven roller 34 and then around a feed roller 50 carrying a friction disc 54 at one end. A friction disc 60 formed integrally with a pulley 62 is freely mounted on a stub shaft 64. The stub shaft 64 is supported by an arm 66 pivoted to a link 72. The link 72 is pivoted, by a pin 74, to an arm 78 mounted on a transverse shaft 82. The shaft 82 carries feeler rods 76. A belt 92 drives the pulley 62, a pulley 56 free on a shaft 52 carrying the roller 50, and a pulley 42 on the shaft 36 carrying the roller 34. The belt 92 is driven by a variable speed pulley 97 by a belt 106, the speed being adjustable by rotation of the head 102 of a screw 105. Friction disc 60 is normally urged into contact with disc 54 by a spring 132. A guide plate 138 extends upwardly and tangentially to roller 34 to prevent the web 32 being wrapped around the roller 34. Should slack web accumulate around a floating roller 140 vertically slidable in guides 144, the roller 140 descends, thereby rocking feeler rods 76. The rods 76 cause the disc 60 to disengage the disc 54 through the actuation of link 72 and arm 66, thereby interrupting web feed until roller 140 rises.
Patent GB-776616-A (GB)
Title: Improvements relating to compositions suitable for making refractory articles
Inventor: SMITH ERIC
IPC: C04B28/24
Filed: 1954-09-23
Abstract: A slurry for making refractory articles comprises silica sol, a powdered refractory material and a minor proportion of a non-ionic or cationic surface active agent, the pH of the slurry being such that it remains homogeneous on standing.  Refractory materials specified are alumina, carborundum, chromite, silica, zircon or sillimanite. Non-ionic agents are condensates of an alkylene oxide (e.g. ethylene oxide) with an organic compound containing a large non-polar group and an active hydrogen e.g. long-chain fatty alcohol, an alkyl phenol, a fatty acid or a long-chain alkyl mercaptan.  Cationic agents are quaternary ammonium salts, e.g. cetyl pyridinium bromide or cetyl trimethyl ammonium bromide.  Anionic agents, e.g. alkyl aryl sulphonates, alkyl hydrogen sulphate salts, or an alkyl sulphosuccinate, may also be present as viscosity reducing aids. Specifications 594,671; [607,696, 645,703, 649,897, 654,850, 662,423 [all in Group III]]; and 722,816 [Group XXII] are referred to.
Patent GB-610600-A (GB)
Title: Improvements in or relating to agricultural and other land-working machines
IPC: A01B33/04
Filed: 1946-04-08
Abstract: 610,600. Reaping-machines. HAMLETT, H. W. April 8, 1946, No. 27538/47. Divided out of 610,571. [Class 6(iii)] A machine for cleaning land of vegetation comprises a tractor provided in front with power-driven reaping tools each comprising a casing 42 having a number of fingers 53, and a circular saw 49 arranged to rotate inside the casing to cut vegetation gathered between the fingers. The saws 49 are driven by gearing 46, 60, 63, 64 from a shaft 62 upon which the tools are all pivotally supported and about which they may be raised in unison either manually or hydraulically. Each tool is associated with a hydraulic cylinder 70 for lifting purposes and a pivoted tip 179 on each tool is connected by a cable 180 to a valve controlling the action of the cylinder so that the tools may rise individually upon encountering obstructions. The tools may be raised manually by a screw device 177 operating upon a pivoted arm 178. The machine may also be provided at the rear with power-driven rotary hoes of the kind described in Specification 610,571.
Patent GB-1126408-A (GB)
Title: Improvements in or relating to brake actuating mechanisms
IPC: B62L5/00
Filed: 1966-06-20
Abstract: 1,126,408. Brake actuating mechanism. HONDA GIJUTSU KENKYUSHO K.K. 20 June, 1966 [7 July, 1965], No. 27554/66. Heading F2E. [Also in Division B7] A brake actuating mechanism comprises a driving member 3 which is connected to a driven member 4 through a lost motion device, that is a pin 5 of driving member 3 working in a slot in driven member 4. A brake operating member 9 is mounted about the driving and driven members and a ratchet mechanism comprising ratchet teeth 14 on the operating member and a pair of diametrically opposed spring loaded claws 16 connects the driving member 3 and operating member 9 in one relative position of the driving and driven members 3, 4. For this purpose the driven member 4 is provided with a pair of cams 19 which, in the normal driving condition of the driving and driven members, hold the claws 16 in their inoperative positions. On reverse rotation of the driving member 3 the relative rotational movement between the driving and driven members afforded by the lost motion device effects the release of the claws into their operative positions such that the operating member is actuated. The braking force is transmitted to the brake by means of a cable (Figs. 3, 4, 5, not shown).
Patent GB-420935-A (GB)
Title: Improvements in or relating to roller machines for pressing leather
IPC: C14B1/30
Filed: 1933-10-07
Abstract: 420,935. Shaping leather. JACKSON, A. J., and JACKSON, Ltd., A. J., Kingswood, Bristol. Oct. 7, 1933, No. 27692. [Class 100 (ii)] [See also Group VII] A machine for shaping leather comprises a driven convex roller a and a co-operating concave roller h which is not driven. The rollers are pressed toward each other by springs n engaging the bearings of the upper roller, the spring pressure being adjusted by levers o engaging a flange on a member r coaxial with a handwheel z engaging a threaded boss in the frame. A quick application or release of pressure may be made by a hand lever v pivoted to the member r and having a cam surface at its lower end, which surface engages the boss of the handwheel. The roller a has a knurled surface.
Patent GB-1059971-A (GB)
Title: Improvements in the manufacture of plastic shoes and other articles of footwear
Inventor: TUSA JOHN
IPC: B29C45/46
Filed: 1962-09-19
Abstract: 1,059,971. Injection moulding footwear. BRITISH BATA SHOE CO. Ltd. Sept. 9. 1963 [Sept. 19, 1962], No. 27711/62. Addition to 1,010,141. Heading B5A. In the manufacture of footwear made wholly or partly of plastics material, a predetermined quantity of fluid colouring material is injected into a plastisol prior to bringing the plastisol to a transient gel condition in an injection cylinder (13). As seen in Fig. 1 (not shown) a pump (6) supplies a plastisol under pressure from a mixer (5) to the injection cylinder (13), colouring material being periodically introduced from an injector (11). The injection cylinder (13) houses a rotary screw, has heating bands (17, 18), and co-operates with moulds (9) on a turntable (19). The colour injector comprises a detachable container (40, Fig. 2, not shown) in which the colouring material is maintained under pressure by a spring biased plate (46), and an outlet valve (42). A pneumatically operated plunger (29) controlled by timing mechanism forces the colouring material through a non-return valve (36) into a conduit (7) leading to the injection cylinder (13). Alternatively the colouring material may be injected directly into the cylinder (13) itself at a point near the inlet thereof.
Patent GB-335721-A (GB)
Title: Improvements in pulleys
IPC: B66C23/60
Filed: 1929-09-12
Abstract: 335,721. Gobel, L. G. H. Oct. 12, 1928, [Convention date]. Guide pulleys.-A guide pulley D for use with a derrick L is mounted in a member E which can turn about a horizontal pivot G and is held in any position by the engagement of a toothed sleeve P with teeth on the member C. The sleeve is acted on by a spring F the tension of which can be regulated by a nut S.
Patent GB-319496-A (GB)
Title: Improvements in or relating to sliding windows
IPC: E05F11/38
Filed: 1928-09-27
Abstract: 319,496. Beaton, G., H., (Representative of Johnstone, W. E. H.), and Beaton & Son, Ltd., G. Sept. 27, 1928. Sashes balanced by spring rollers. -A sliding window, having a rotatable spring barrel B tending to return the sash A to closed position, has means for locking the barrel in any position of the sash. The barrel B has an internal spring and is mounted on the sash by brackets C, D, two cables E secured to the barrel being also adjustably fastened to the window frame. The barrel spindle b<1>, Fig. 2, is carried by a plunger F having clutch teeth f engaging similar teeth on the barrel, the plunger being pressed in by a spring f<3> and withdrawn by a rod f<4> and crank H actuated by a rod J or Bowden cable. The rod J is operated by a fingar-piece j<3> and fixed thumbpiece M. In the case of a Bowden cable, a single lever is used.
Patent GB-853032-A (GB)
Title: Improvements in high voltage electric fuses
Inventor: HICKS BRUCE CLIFFORD
IPC: H01H85/042
Filed: 1957-09-04
Abstract: 853,032. Fusible cut-outs. E. M. P. ELECTRIC Ltd. Aug. 28, 1958 [Sept. 4, 1957], No. 27895/57. Class 38(1) A fuse element carries a body of different melting-point the position of which is selected to obtain a predetermined fusing characteristic. The element may be of wire or strip form and the body may be a strip or wire wrapped round the element loosely or tightly and, if desired, soldered in position. In other forms the body may comprise a sleeve or a small mass of material with an outwardly directed tail or fin which acts as a cooling fin (Figs. 2-5 not shown). Figs. 1 and 6 show a cartridge fuse having elements 9...12 connected in parallel between end caps 8 on the cartridge body 7, the elements being coiled on a ribbed ceramic former 28 embedded in arc-quenching powder 13. Three of the elements (10, 11, 12) are provided with bodies 17 as above described, the remaining one 9, having an indicator pin mechanism 14 shunted across a part of it. This arrangement ensures that the elements 10, 11, 12 rupture first and transfer the whole of the load to the element 9 which then fuses and operates the indicator. The indicator may operate an isolating switch. All the elements are provided with one or more ceramic beads or tubes 19 to create predetermined arcing points. Specifications 113,663 and 738,344 are referred to.
Patent GB-506883-A (GB)
Title: Improvements in or relating to devices for testing tobacco rods
IPC: A24C5/34
Filed: 1938-01-07
Abstract: 506,883. Automatic control systems; cigarette - making machines. SKODA WORKS, PLZEN. Jan. 7, 1938, No. 27915. Convention date, Jan. 7, 1937. [Class 38 (iv)] [Also in Group VI] Linear dimensions.- Variations in thickness of a tobacco rod carried by a belt 16 move a spring-pressed roller 10 mounted on a lever 11 and carrying a contact 8 to engage one or other of two adjustably mounted contacts 9, 9<1> and energize relays to increase or decrease the tobacco feed to the rod forming mechanism. The roller 10 is rotated by a gear-wheel 19. The relays may simultaneously reject the defective cigarettes cut from the rod.
Patent GB-279835-A (GB)
Title: Improvements in or relating to apparatus for annealing glassware
IPC: C03B25/06
Filed: 1927-10-20
Abstract: 279,835. British Hartford-Fairmont Syndicate, Ltd., (Assignees of Russell, A. W.). Oct. 26, 1926, [Convention date]. - Air, preventing admission of.-In a glassware plant in which the ware travels in a continuous manner from the melting-tank to a packing-room, a screen or partition 12 is so located in relation to the annealing-leer 1 that the, tendency for air currents to flow through the space 9 around the lehr and through the leer tunnel is minimized. As shown, the partition is situated beyond the cold end of the leer, and is formed with an opening 13, through which the conveyer 7 and the ware pass. The opening may be adjusted to the height of the ware by a pivoted flap 14. The leer is of the kind described in Specification 250,201.
Patent GB-320513-A (GB)
Title: Valve mechanism for internal combustion engines
IPC: F01L1/12
Filed: 1928-09-28
Abstract: 320,513. Bloomfield, C. W., and Davison, E. C. Sept. 28, 1928. Cylinders, arrangement of ports and igniters in.-The inlet and exhaust valves of each cylinder are spaced around the cylinder head with an angle of 135‹ or less between them. Fig. 1 shows one of the valves 8 actuated by a rocker 11 from a cam shatt 3. The other valve (not shown) is spaced 90‹ from the valve 8 and is actuated from the same shaft by means of a second rocker, the axis 9 of which is at right angles to the axis 12 of the first rocker. The sparking-plug 13 is arranged so that its electrodes lie in the cylinder axis and adjacent the exhaust port.
Patent GB-1142567-A (GB)
Title: Device for verifying the operation of an electromagnet
IPC: G21C7/12
Filed: 1966-06-22
Abstract: 1,142,567. Monitoring operation of electromagnets. GROUPEMENT ATOMIQUE ALSACIENNE ATLANTIQUE. June 22, 1966 [July 29, 1965], No. 27953/66. Heading G1N. In a nuclear reactor loading machine having a gripper magnet Sp and a locking magnet Sv, each energizable from a separate D. C. supply the operational state of the magnets is monitored by connecting in the coils in the series arms of an A. C. bridge circuit as shown in Fig. 1, with capacitors and resistors 7.. 10 in the other two series arms. The D. C. supplies 6 are connected between the balance point B and the respective outers A and C. Filter coils S 1 , S 2  are connected in the D. C. supply leads and blocking capacitors C 1 , C 2 , in the A. C. supply. Any out-of-balance signal passes through amplifier 12 to a recording or signalling device 13. One of the D. C. blocking capacitors may be omitted Fig. 2 (not shown).
Patent GB-323506-A (GB)
Title: Improvements in or relating to electric heating elements or radiators
IPC: F24C7/00
Filed: 1928-09-29
Abstract: 323,506. Breffit, W. Sept. 29, 1928. Electric radiators. - A triangular block A of firebrick or the like carries heating elements C, preferably attached to a projection B on the block. The block may be placed as shown in Fig 1 and used as a radiator, or supported in a wire frame, as shown in Fig. 2, with the heating elements horizontal and used to heat irons, cooking utensils &c. supported on the frame.
Patent GB-1043198-A (GB)
Title: Improvements in automatic door catches
Inventor: REILLY BRIAN JAMES FIELDING
IPC: E05F5/10
Filed: 1962-07-20
Abstract: 1,043,198. Door catches. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. July 19, 1963 [July 20, 1962], No. 28013/62. Heading E2A. A catch for a door 2 comprises a male member 1 insertable into the mouth 7 of a female member 3 and retained there by balls 16 extending through apertures 15 in the head 13 of the piston 11 of a dash-pot. The piston 11 is movable in a cylinder 8 filled with oil and supports members 17, 18 and 19 which form a one way valve system. As the door is opened, the catch becomes disengaged and the oil from chamber A flows to chamber B, until the face C of the head 13 abuts the face D in the opening 6. As the door comes under the influence of a closure force e.g. spring- loaded hinges, the piston moves in direction X, rate of displacement being limited by the flow of oil from chamber B to chamber A through channel 9. When the balls 16 move into the bell-mouth 7 the male member 1 is released. The flow of oil through channel 9 is limited by a screw 10.
Patent GB-763129-A (GB)
Title: Refuse vehicle bodies and methods of compressing refuse in them
IPC: B65F3/28
Filed: 1954-09-28
Abstract: 763,129. Compacting refuse in vehicle bodies. LELAURIN, L. A. Sept. 28, 1954 [June 21, 1954], No. 28016/54. Class 78 (4). The power for compressing refuse in a refuse vehicle body is automatically slipped, e.g. by a fluid coupling 38, when the compression force becomes excessive. As illustrated, a chain 29 for moving a plate 17 to compact refuse against the rear doors 13 of a refuse vehicle body is driven from the engine of a vehicle through a reversible transmission which includes the fluid coupling 38, reduction gear 34, and a power take-off 25. The reduction gear 34 drives a sprocket 31 from which the chain 29 passes around a further sprocket 30 to be anchored at 32 to a connecting bar 21 secured to the compactor plate 17 and running in a central floor channel 22. The other end of a chain 29 is secured to a spring-biased lever 33 on the compactor plate. Rollers 23, 24, 25, 26 engage suitable guide rails in the floor channel 22 and at the bottom of the body on either side of the floor channel. An upper loading door 11 on each side of the vehicle slides horizontally on rollers 14 and may be secured in its closed position by a catch 16 and in its open position by a captive hook 15. A lower loading opening 12 on each side opens vertically downwards.
Patent GB-158976-A (GB)
Title: Method of and means for producing an optical illusion
IPC: G02B27/06
Filed: 1919-11-12
Abstract: 158,976. Tibbles P. T. Nov. 12, 1919. Diagrams.-An illusion apparatus, which may be used for educational purposes, consists of a semi-transparent. picture, design, or the like illuminated from behind, and one or more semi-transparent masks which are placed between the picture and the source of light and moved towards and from the picture, whereby the picture may be changed in design and colour. The picture 2 may be mounted in a casing 1 and illuminated from the rear by a lamp 20. Semi-transparent masks 6, 9 may be hinged close behind the. picture 2 and a motor 18 may be used to produce angular displacement of the masks about their hinges, and thus move them away from the picture, and then allow them to move back again. When the masks are away from the picture, they are in. visible to a spectator, but as they approach it they become visible gradually and may thus be used to change the character of the picture.
Patent GB-725646-A (GB)
Title: Improvements relating to frequency converters for radio frequencies
IPC: H03D7/08
Filed: 1953-10-12
Abstract: 725,646. Superheterodyne circuits. GENERAL ELECTRIC CO. Oct. 12, 1953 [Oct. 10, 1952], No. 28048/53. Class 40 (5). An ultra-high-frequency frequency changer comprises a grounded-grid mixer 18 with cathode injection of signal, connected in the cathode circuit of an oscillator 24 of the Colpitts' type. The static anode potential of the mixer 18 may be adjusted by means of a shunt resistor 36 in series with which a choke 35 may be provided. The I.F. output is taken from the mixer anode via an oscillator-frequency choke 37 and a series-tuned circuit 38, 40 adjusted to I.F. frequency. In a modification, Fig. 2 (not shown), an R.F. choke is connected in the cathode circuit of the oscillator to reduce the loading on this valve.
Patent GB-1474148-A (GB)
Title: Method of and machine for the production of mouldings  containing a reinforcing filler
IPC: B29C70/46
Filed: 1975-07-03
Abstract: 1474148 Moulding fibre-reinforced articles ENGINS MATRA 3 July 1975 [5 July 1974] 28064/75 Heading B5A Articles of a thermosetting binder and a reinforcing filler are made by placing the reinforcement on mould half 16 while the mould is in an open position, mould halves 15 and 16 being heated, and closing the mould to the illustrated position, binder being injected via injector 18 partly while the mould is closing and partly after mould closure is effected. Suitably between 60 and 80% of the binder is injected prior to mould closure, and the binder injected after mould closure is injected at a considerably higher pressure (e.g. 50 bars) than that injected before mould closure (e.g. 2-5 bars).
Patent GB-814897-A (GB)
Title: Improvements in and relating to apparatus for driving the rotary parts of heater units
Inventor: BAIER WALTER
IPC: F02N19/04
Filed: 1955-10-03
Abstract: 814,897. Turning gear. BAIER, O., BAIER, L., BAIER, W., BAIER, W., SCHLUMPRECHT, E., and BAIER, W., [trading as BAIER K.G. WEBASTOWERK, W.], Oct. 3, 1955, No. 28101/55. Class 7(5) [Also in Group XIII] The starting motor 37 for an I.C. engine may be assisted, through a clutch 36, by an auxiliary I.C. engine 8 which drives a combined electric motor and generator 2a. The latter supplies an accumulator 7 and also drives a shaft carrying fluid impellers 23, 28 in a heater for heating the main I.C. engine before starting (see Group XIII).