baber/WOPTO huggingface dataset:
Patent GB-118100-A (GB)
IPC: F23K3/00
Abstract: 118,100. Motala Verkstads Nya Aktiebolag. Dec. 31, 1914, [Convention date]. Fuel, feeding. -In an air-current feeder for pulverulent fuel, in addition to the blast delivered into the fuel receptacle for stirring up the powder near the inlet to the conduit leading to the furnace, a blast is directed into the conduit to assist in the delivery of the fuel. In one arrangement, Fig. 3, the air from a blower passes through a main 68 to a box 85, from which leads a pipe 68<1>, co-axial with and delivering directly into the fuel and air conduit 1. The stirring is effected by air supplied through rings 90, 91, 92, of which the first branches from the pipe 68', while the others communicate directly with box 85. Valves 86 controlling the supply to the rings 91, 92 may be loaded to open at different pressures, so that the three rings come into operation in succession. In a modification, the three rings are connected by separate pipes with the main controlling-valve, and the ports in this are so arranged that the blasts through the conduits 78, 68<1>, and the three rings come into operation in succession. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the following subject-matter: A further stirring of the powder may be effected by blasts delivered through conduits 78 in the walls of the container supplied through a pipe 74. In the form of the invention shown in Fig. 5, (Cancelled), the converging-blast is delivered through an end opening 15 in the nozzle 14, and the stirring-blast through the side apertures 6. The nozzle is connected to the feed pipe 12 and is adjustable to and fro in the sleeve 10. In a modification of this form, the airdelivery pipe is fixed and the supply through the apertures 6 is controlled by an internal valve operated simultaneously with the main controlling- valve. In a further form of the invention, Fig. 12 (Cancelled), the air supply conduit 4 surrounds the fuel feed pipe 1, and the stirring and conveying-blasts are delivered through apertures 6, 15 respectively. A feed pipe of this form may also be used with a nozzle delivering directly into it, the apertures 15 being then omitted. In this case, the controlling-valve has two ports, which are brought into operation in succession, the first supplying the conveying-blast, and a blast delivered through the fuel nozzle in the furnace, and the second the stirring-blast. When this blast is turned on fully the others are almost cut off. In another arrangement, Fig. 20 (Cancelled), the air supply through the pipe 4, and the mixture of fuel and air in the feed pipe 1 are entrained by a steam blast 24. Additional air may be drawn into the feed pipe through openings 25. Stirring of fuel in the receptacle without feeding may be effected by closing a valve in the feed pipe, opening a valve in the top of the receptacle, and turning on the air blast. This subject-matter does not appear in the Specification as accepted.
Patent GB-455140-A (GB)
Title: Improvements in hydraulic torque transmitting mechanism
IPC: F16D31/02
Filed: 1935-04-17
Abstract: 455,140. Hydraulic transmission of power. FRASER, W., 28, Stuart Avenue, Hunts Cross, Liverpool. April 17, 1935, Nos. 11815, 30540, and 32707. [Class 69 (ii)] In hydraulic power transmission mechanism, the driving shaft carries a liquid containing casing provided with radial cylinders, the pistons are actuated by a cam on the driven shaft and reciprocate in rotary balance, and the centrifugal effect in the inner zone causes liquid to pass automatically to the cylinders to replenish leakage. In the form shown, the pistons 10 are guided in cylinder liners 9, and have rollers 12 contacting with the cam 13 on the driven shaft 26, the arrangement being such that opposite pistons move in or out simultaneously. Bell-crank levers 29 engage the roller pins 11 of adjacent pistons by means of a flat spring 32, and the resilience of each spring 32 may be varied by adjusting a yoke 34 to vary the effective length of a recess 32 covered by the spring. A control valve 22 is floatably mounted on a stem 23, and each piston has a non-return valve 41. The number of pistons may be varied, and the driven shaft may have two cams, each acting on a separate series of pistons.
Patent GB-696678-A (GB)
Title: Improvements in the vulcanisation of rubber
Inventor: JONES FREDERICK ARTHUR
IPC: C08L21/02
Filed: 1950-05-12
Abstract: Rubber articles are produced by compounding rubber latex with sulphur, a vulcanizing accelerator comprising a metal salt of an N-substituted dithiocarbamic acid and a small proportion of an amine, adding a gelling agent such as sodium silicofluoride, shaping and gelling and then vulcanizing the rubber.  The dithiocarbamates are preferably water insoluble such as zinc diethyl dithiocarbamate used alone or with zinc pentamethylene dithiocarbamate, zinc phenylmethyl dithiocarbamate, zinc lupetidine dithiocarbamate, mercaptobenzthiazole, or selenium diethyl dithiocarbamate; although water soluble dithiocarbamates such as sodium pentamethylene dithiocarbamate, sodium dimethyl dithiocarbamate or sodium dithiocarbamate may also be used.  The amine must be a true amine, and not an addition product of ammonia such as hexamethylene tetramine, but can include substances such as benzylidine dipiperidine which liberate piperidine on heating.  The amine is used in a proportion of 2 to 25 per cent. by weight of the dithiocarbamate.  In examples, the amine used is diphenylguanidine, symmetrical triphenylguanidine, benzylcyclohexylamine, triethyltrimethylenetriamine, diethylamine, dicyclohexylamine, triethanolamine, tetraethylene pentamine or benzylidine dipiperidine.
Patent GB-220264-A (GB)
Title: Improvements in wheels
IPC: B60B23/10
Filed: 1924-05-15
Abstract: 220,264. White, J. W. Jan. 9, 1924, [Convention date]. Detachable-rim attachments to wheels.-A disc wheel comprises a disc 11 having an inwardly projecting peripheral flange 30 and a rim 12 having a central groove 16 and a continuous bead 19 on the inner side of the rim base. The rim is mounted on the flange 30 with the bead 19 in engagement with the disc and' the disc flange and rim base are either rigidly connected by rivets 43 to provide a fixed rim or after a restamping operation has reduced the diameter of the flange 30, the rim is mounted on the flange and detachably secured in place by a clamping ring 38 held on bolts 32 by nuts 41.
Patent GB-437580-A (GB)
Title: Improvements in or relating to the electrical synchronising of clocks
IPC: H04M11/00
Filed: 1935-04-18
Abstract: 437,580. Exchange systems. ROD, R., 8, Fibichova, Prague. April 18, 1935, No. 12018. Convention date, April 20, 1934. [Class 40 (iv)] [See also Group XVIII] During the period of transmission of a clock-synchronizing impulse over a conductor of a telephone line, the conductor is disconnected from the exchange apparatus and the subscriber's instruments, and an alternative telephone connection is substituted. Shortly before the transmission of an impulse, the minute arbor of the master clock 1 engages contact 2 to operate a relay 3 which disconnects conductor 17 from the exchange and connects up holding-connections 5, 7. At the substation a cam 9 on the minute arbor of the controlled clock disconnects line 17 from the telephone set 4 and connects up an alternative circuit 16. At the last second of the last minute of the hour, contact 20 is closed, operating relays 19, 21 to transmit an impulse from battery 22<1> to correcting magnet 18 which controls the minute arbor 8 of the controlled clock by a fork 24 engaging a pin 241. The arbor 8 is geared to a pin wheel 28 which acts on contacts 29, 30 to transmit alternate positive and negative impulses to further clocks 31.
Patent GB-1343491-A (GB)
Title: Skid control apparatus for vehicle brake system
IPC: B60T8/36
Filed: 1971-04-29
Abstract: 1343491 Antiskid braking systems FORD MOTOR CO Ltd 29 April 1971 [15 April 1970] 12030/71 Heading F2F An antiskid braking system including a master cylinder supplying pressure fluid to slave cylinders and means producing an input signal indicative of excessive wheel slip has a skid control actuator which applies an opposing force to the master cylinder piston under the influence of fluid pressure controlled by a valve operated by the said input signal. As shown the master cylinder 10 has two separate and parallel piston and cylinder assemblies 50, 52 having attached to their ends skid control actuators 14, 16 controlled by means of valves 18, 22, assemblies 14, 18 controlling the rear brakes and assemblies 16, 22 controlling the vehicle front brakes. An hydraulic servo assembly 12 controlled by a valve spool 106 moved by the brake pedal supplies axial thrust to the master cylinder. The actuators 14, 16 are of identical design each comprising a cylindrical housing 738 with a piston 140 slidable therein and having an extension 144 held in contact by a spring 146 with a projection 70 of the master cylinder piston.
Patent GB-314627-A (GB)
Title: Improvements in and relating to photographic reproduction
IPC: G03B17/53
Filed: 1928-04-24
Abstract: 314,627. Murray, C. H., (Photomovette, Inc.). April 24, 1928. Enlarging apparatus comprises two separate slides for holding opaque negatives, each associated with a lens and holder for the sensitized surface and means for adjusting separately the lenses and holders for focusing. Upon a rectangular box 2, Fig. 1, is mounted an enclosure 3 with upright partitions 5 dividing the compartment into five channels, three of which contain lamps 6. The lower portion 2 is divided by a partition 7 into two isolated sections 8 and 9 with lenses 10 and 11 respectively which are. shielded from the lamps 6 by the partitions 5. The opaque strips of negative images aremounted in slides, inserted in the guides 12 and 13, illuminated by the lamps, and photographed on to sensitized paper mounted on the adjustable platforms 17 and 18. The compartment, 8 and lens 10 are adapted to take a single enlargement and the compartment 9 and lens 11 to reproduce a strip of negative images. In an alternative construction, Fig. 8, strips of negative images mounted at the back of an enlarging camera are reproduced two at a time on to a screen by means of the two lenses 31 individually adjustable by means of the racks and pinions 32. The negatives are illuminated by lamps 34, 42. Shades 41 prevent the light from shining directly into the lenses. The slide mount 35 holds four slides which are brought into position in front of the lenses two at a time by a transverse movement, of the mount.
Patent GB-735171-A (GB)
Title: Improvements in the treatment of aromatic polyester fibres, yarns, fabrics, films and like shaped articles
Inventor: MARVIN DENYS NICOL
IPC: D06M13/52
Filed: 1952-05-14
Abstract: The dye affinity of polyethylene terephthalate fibres, yarns, fabrics, films and like shaped articles is improved by heating them at 210 DEG  C., or more, but less than 230 DEG  C.  During the heat treatment the articles may be allowed to shrink or be held under tension.  Heating may be effected by molten metals, salts or kerosene, hot air, nitrogen or carbon dioxide, infra-red radiation or high-frequency heating, or by contact with a hot metal surface.  In examples, dyeing is effected with dispersed dyestuffs. Specifications 672,449, [Group IV (a)], and 684,046 are referred to.ALSO:Polyethylene terephthalate fibres, yarns, fabrics, films and like shaped articles are given an increased dye affinity and increased resistance to shrinkage and creasing by heating them at 210 DEG  C., or more, but less than 230 DEG  C.  The heat treatment is applicable to articles which have been wholly or partly oriented by drawing, and during the heat treatment they may be allowed to shrink or be held under tension.  Heating may be effected by molten metals, salts or kerosene, hot air, nitrogen or carbon dioxide, infra-red radiation or high-frequency heating, or by contact with a hot metal surface.  To remove the stiffness of heat-treated fabrics, they may be subsequently washed, scoured or subjected to any other mechanical flexing operation. Specifications 672,449 and 684,046, [Group IV (c)], are referred to.
Patent GB-714327-A (GB)
Title: Improvements in or relating to the production of urea in finely divided form and to the refining of petroleum by means of urea in finely divided form
IPC: C10G31/06
Filed: 1950-05-17
Abstract: Urea is produced in finely-divided form by contacting with a hydrocarbon oil, forming an emulsion of liquid urea in the oil, and shockcooling the emulsion by rapid mixing with hydrocarbon oil at a temperature below that of the emulsion.  A suspension of urea in oil is thus formed.  The hydrocarbon oil may be a petroleum fraction, for example, a straight run gas oil of boiling range 200-350 DEG  C.  The urea-in-oil suspension may be used for treating petroleum fractions (see Group III).  Specification 728,581, [Group III], is referred to. The Provisional Specification refers also to substituted urea, for example, alkyl substituted ureas.ALSO:A process for the production of hydrocarbon oils comprises treating a liquid petroleum fraction in a urea adduction zone with a urea-in-oil suspension to form a solid urea adduct, separating a hydrocarbon oil from the adduct, decomposing the adduct by heat in the absence of water, separating urea, converting it to a urea-in-oil suspension and returning this suspension to the urea adduction zone.  The hydrocarbon oils may be petroleum fractions, for example, a straight run gas oil of boiling range 200-350 DEG  C.  The adduct formation may be carried out in the presence of an alkanol such as methanol, ethanol or propanol; a hydrocarbon diluent such as a kerosine fraction of boiling range 100-200 DEG C., may also be added.  The urea-in-oil suspension is prepared by forming an emulsion of liquid urea in hydrocarbon oil and shock-cooling the emulsion by mixing with cooler hydrocarbon oil. Specification 728,581 is referred to.  The Provisional Specification refers also to substituted urea, for example alkyl substituted ureas.
Patent GB-1534065-A (GB)
Title: Control arrangements for vehicle braking systems
IPC: B60T7/12
Filed: 1976-03-26
Abstract: 1534065 Vehicle brake control GOSHI KAISHA MIZUNO KOGEISHA 26 March 1976 [27 March 1975] 12332/76 Heading F2E When the vehicle is braked to a halt, the brake is retained in the applied condition until switches operated by actuation of the clutch and accelerator pedals are both actuated. As shown in Fig. 2, movement of brake lever 1 is transmitted through linkage 9-15 to a microswitch 19, the linkage being associated with a lever 16 carrying electromagnet 17. When the latter is energized, it clamps against an adjacent plate to lock the linkage, and hence the brake, in position. The clutch pedal lever 27 (Fig. 5) has an associated cam mechanism 31, 32 arranged to open a microswitch 28 when a portion 31c (of adjustable length) is adjacent the switch actuator. A further switch 40 (Fig. 7) opened after a predetermined depression of the accelerator pedal is arranged in parallel with switch 28, the switches being in series with electromagnet 17. In operation, when the vehicle is braked to a halt, switch 19 closes to sound a buzzer 39 and a rotatable magnet 33 associated with the propeller shaft ceases to excite a reed switch 34. After a delay, relay 38 operates to de-energize the buzzer and energize the electromagnet to lock the brake on. The brake can then only be released when both switches 28 and 40 are open. In one modification (Fig. 8, not shown) the electromagnet has two windings only one of which is in series with switches 28 and 40. Consequently operation of the clutch and accelerator merely reduces the locking effect of the electromagnet which will slip, releasing the brake more gradually. In another modification (Fig. 9, not shown) the electromagnet does not remain energized unless the brake pedal is maintained depressed. A manual locking mechanism may be provided for retaining the brake effective when the power source is switched off.
Patent GB-964547-A (GB)
Title: Improvements in or relating to thermionic cathodes
Inventor: JENKINS RONALD OSMOND
IPC: H01J1/142
Filed: 1962-03-30
Abstract: 964,547. Thermionic cathodes. M-O VALVE CO. Ltd. March 12, 1963 [March 30, 1962], No. 12353/62. Heading H1D. A thermionic cathode, e.g. for a valve, comprises a layer 5 of a compressed powder of alkaline earth metal oxides bonded by compression and sintering to a backing 6 of a compressed powdered mixture of alkaline earth metal oxides and a metal which is inactive with respect to the oxide. The layer 5 is 0.02 mm. thick and comprises a co-precipitated mixture of 49.5% barium carbonate, 43.5% strontium carbonate and 7% calcium carbonate; the backing layer 6 is 0.2 mm. thick and comprises 30% of the above mixture and 70% carbonyl nickel powder, and is electrically conductive. There is an additional layer 7, 0.6 mm. thick, 99% carbonyl nickel and 1% titanium hydride (as a reducing agent), which keys into holes 3 in a nickel tube 1, 4 mm. long, 4 mm. diameter and 0.1 mm. thick. This tube surrounds and is connected to one end of, a heating filament, not shown. During manufacture, the material for layers 6 and 7 are placed in the tube 1 and subjected to a pressure of 1 ton/cm.<SP>2</SP> in a die. The emissive layer 5 is then applied, e.g. by spraying, and pressure, now 12 tons/cm.<SP>2</SP> again applied. The cathode is then assembled in a valve and heated to 1050‹ C. which causes sintering and decomposition of the carbonates to oxides. Finally, the cathode is activated by heating to 900‹ C. It is stated that the backing layer 6 provides a reserve of barium for the emissive layer 5, and the cathode operates at about 1 amp./cm.<SP>2</SP>
Patent GB-1143104-A (GB)
Title: Tabletting machine
Inventor: GRIFFITHS SELWYN
IPC: B30B15/30
Filed: 1966-03-21
Abstract: 1,143,104. Feeding material to rotary presses. MONSANTO CHEMICALS Ltd. 21 Feb., 1967 [21 March, 1966], No. 12388/66. Heading B5A. [Also in Division B8] In a tabletting machine, a rotary annular die plate 1 is provided with die cavities 2 supplied from a stationary feed frame 3 positioned with suitable clearance thereon and which is divided into a number of compartments 6, 7, 8 and 9 interconnected by channels provided in the lower sections of transverse dividing walls 5. Particulate material is fed into compartment 6 and the remaining compartments are each provided with an agitating device comprising a cylinder 12 rotated by a tyred wheel 14 on the shaft 10 thereof in contact with plate 1 and provided with radially projecting rods 13 arrayed at right angles in each of two staggered sets and which rods have substantially the same clearance as the base of the hopper frame from the plate 1. The agitator may alternatively be rotated from the tabletting machine via gearing, e.g. a pinion on the spindle and a rack on the table, or belts, or independently of the machine.
Patent GB-115356-A (GB)
Title: A New or Improved Desk Pad.
Inventor: GILBERT ALFRED
IPC: B43L3/00
Filed: 1917-08-29
Abstract: 115,356. Gilbert, A. Aug. 29, 1917. Writing-pads.-A board 1, preferably of 3-ply wood, is covered by a sheet 2 of celluloid or like transparent material which forms a suitable surface to write upon and allows reference to written matter placed beneath it. The corner caps 3, 4 of leather, metal, &c. may be mounted to slide outwards against elastic or other springs so as to enable them to be detached. A calendar may be combined with the pad, and this may consist, as shown, of disks 12, 13 which are visible through the celluloid cover.
Patent GB-1363121-A (GB)
Title: Manufacture of semiconductor devices
IPC: H01L21/00
Filed: 1972-04-25
Abstract: 1363121 Semi-conductor devices FERRANTI Ltd 25 April 1972 [1 May 1971] 12600/71 Heading H1K A semi-conductor region 17 of relatively low surface impurity concentration (less than 10<SP>18</SP> cm.-<SP>3</SP>) is formed by diffusion from a doped layer 16 of silicon nitride into a semi-conductor body of opposite conductivity type to the region 17. Boron is the preferred diffusant, and since boron diffuses slowly through silicon nitride only the parts of the layer 16 immediately adjacent the region 17 are depleted. The layer 16 may be deposited from a mixture of ammonia, silane and boron hydride with hydrogen or nitrogen. The layer 16 may be deposited over the entire semi-conductor surface and etched to shape or may, as shown, be deposited through a window 15 in a masking layer 13 of silicon oxide or nitride, the layer 13 being itself optionally doped with a P- or N-type impurity to act as another diffusion source. The Si transistor shown is completed by etching a window in the layer 16, diffusing therethrough, e.g. from the vapour phase, an N<SP>+</SP> emitter region, and providing Al emitter, base and collector electrodes. Ge is also referred to.
Patent GB-231800-A (GB)
Title: Manufacture of new cellulose compounds
IPC: C08B13/02
Filed: 1924-05-22
Abstract: Cellulose derivatives are prepared by treating a cellulose xanthic acid or a cellulose xanthate (viscose) with a monohalogen fatty acid or with a salt, ester or other derivative of such acid; the products are either soluble in water, soluble in aqueous solutions of ammonia and of aliphatic and aromatic bases, or in aqueous solutions of caustic alkalies, and from these solutions they may be separated as threads or films that are transparent, shining and pliable; the solubility depends very largely on the relative proportions of the halogen fatty acid to the cellulose derivative employed.  The parent material (viscose, &c.) may be prepared from cellulose or from a conversion product such as cellulose hydrate, hydrocellulose, oxycellulose or any other derivative containing a reactive hydroxyl group.  Suitable monohalogen fatty acids are:-monochloracetic acid, a-bromopropionic acid, and a-bromobutyric acid.  The reaction may be carried out in neutral, acid or alkaline solution, and the cellulose xanthate may be a salt of an alkali metal or of another metal such as zinc; the cellulose xanthate may be first isolated, or the reaction mixture containing the xanthate may be treated either in its original alkaline condition or after neutralization or acidification, for example, with acetic acid; the reaction may be conducted with or without the extraneous supply of heat.  The products are isolated by precipitation with a dehydrating-agent such as alcohol or acetone, or with an acid, an acid salt or an ammonium salt, &c.
Patent GB-719963-A (GB)
Title: Improved entrance step construction for road vehicles, particularly ambulances
Inventor: CALDERWOOD CHARLES ROPER JACKS
IPC: A61G3/00
Filed: 1952-05-19
Abstract: 719,963. Road vehicle steps. SPURLING MOTOR BODIES, Ltd. May 15. 1953 [May 19, 1952]. No. 12676/52. Class 108(1) A foldable step comprises a step member 1 swingably supported by L-shaped arms 7 on spindles 2, a cam 16 on one of the arms 7, and a strut 3 pivoted on a fixed axle 15, biased to move upwardly by either a rubber bush 5 bonded to the axle, or by a torsion spring (not shown) mounted on the axle. In the raised position the step is contained in a well 9, provides a surface 11 continuous with the floor 10, and is supported by at least one rubber buffer 12. When the step is lowered to the operative position, the cam 16 engages a roller bearing 6 on the strut 3 and forces the strut downwardly until it engages with a hook 17 on the step member, whereby the strut assists in supporting the step. In modifications the step member may pivot through more than 180 degrees, or the well 9 may be dispensed with so that the member turns through approximately 90 degrees to stand erect against a door.