baber/WOPTO huggingface dataset:
Patent GB-401788-A (GB)
Title: A process for preparing stable granulated calcium cyanamide
IPC: C05C7/02
Filed: 1932-06-20
Abstract: <PICT:0401788/III/1> Stable granulated calcium cyanamide is prepared by hydrating crude calcium cyanamide with a quantity of water sufficient to hydrate its free calcium oxide content and for decomposing its carbide content, and thereafter treating the hydrated product with a binder, granulating it and drying it by heating until its free water content is reduced to below 5 per cent.  The steps of hydrating, treatment with a binder, granulating and drying are carried out in separate and distinct stages.  Solutions, preferably concentrated, of nitrates such as calcium or ammonium nitrate, nitric acid, calcium chloride, sugar, starch, urea and glucose or sulphite liquor may be employed as the binder.  The hydration may be effected in two or more stages, e.g. the cyanamide may be partially hydrated in a mixer at below 70 DEG C. the hydration being completed in a rotating drum at 120--175 DEG C. and cooling being effected between the stages if desired.  Cooled hydrated calcium cyanamide passes from a container 12 via a screw conveyor 13 into a mixer 14 where it is mixed with a solution of calcium nitrate from a tank 15.  The material passes into a disintegrator 18 and from there into a granulator 19 which may be a slightly inclined open rotating cylinder.  The material is conveyed from the granulator by a conveyor 21 onto a vibrating screen 22 where the over sized granules are removed for return to the disintegrator.  The granules pass via a conveyor 23 to a dryer 24.  Hot air or combustion gases produced in a furnace 25 pass through a flue 26 and through the length of the drier without coming into contact with the granules, are returned through the drier to come into direct contact with the granules and finally pass out through a flue 28.  The granulation is preferably carried out at temperatures below 40 DEG C, say ordinary temperatures whilst the drying of the granules takes place at temperatures above 100 DEG C. as rapidly as possible.
Patent GB-1010534-A (GB)
Title: Improvements in or relating to injection systems
Inventor: ETOC PIERRE
IPC: F04B43/08
Filed: 1964-04-28
Abstract: 1010534 Treating gases with liquids BRITISH PETROLEUM CO Ltd 28 April 1964 [30 April 1963] 17540/64 Headings C5G G10B and G11 A pump 6 of adjustable output (see Division F1) supplies small quantities of ammonia solution from a reservoir 5 to a boiler flue 3, to prevent corrosion when using sulphur-containing carbonaceous or hydrocarbon fuels. The pump delivers via a sight glass 9 and a perforated injection pipe 10. A vent pipe 13 connects reservoir 5 to flue 3. The pump motor is connected to burner 2, so that ammonia injection starts and stops with the burner. Specification 797439 is referred to.
Patent GB-515805-A (GB)
Title: Improvements in electrical signalling systems
IPC: H04L25/08
Filed: 1938-06-13
Abstract: 515,805. Transmission systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and SAVILLE, W. June 13, 1938, Nos. 17566 and 29123. [Class 40 (iv)] [Also in Group XXXV] A safety device for mine signalling systems or for coupling a safe mine telephone system to a potentially unsafe system such as the public network comprises a solid body of non-linear resistance material arranged in shunt of the signalling or telephone circuit to prevent dangerous rise of voltage in the circuit which includes the actual connections to the solid body so that the circuit cannot remain intact if the shunt becomes ineffective. As shown, a safe telephone circuit S1, S2 is coupled to an unsafe circuit US1, US2 by a unit comprising a block NLR of agglomerated silicon carbide and carbon, tungsten or molybdenum having metal sprayed faces to which the circuit connections are made. The leads incoming from the unsafe circuit and, if desired, those outgoing to the safe circuit, contain condenserresistance combinations R1, C1 offering low impedance to speech but high impedance to ringing and other low frequencies the voltage drop across which increases as the resistance of the shunt decreases. The unit may be applied to a signalling system to prevent excess voltage when the circuit is opened.
Patent GB-120786-A (GB)
Title: Improvements in or relating to Electric Furnaces.
Inventor: GRAMMONT ETIENNE
IPC: H05B3/60
Filed: 1917-11-28
Abstract: 120,786. Grammont, E. Nov. 28, 1917. Electrode furnaces, particularly for melting and refining copper or alloys thereof. A conductive hearth consists of a metal plate a, a conducting layer d, and an upper layer of non-conducting material b in which are wells b<1> affording connexion between the charge and the conducting layer. The more rapid heating in the wells promotes circulation of the charge. As shown, the hearth electrode a has webs a<1> for attachment of conductors. It may be water-cooled, and may be insulated by asbestos. The layer d may consist of a mixture of coal and pitch or tar, and connexion with the plate may be improved by asperities, nipples, recesses, or dove-tail grooves on the latter. The layer b may consist of refractory brickwork.
Patent GB-685944-A (GB)
Title: Improvements in jet propulsion engines
IPC: F02C7/32
Filed: 1950-07-14
Abstract: 685,944. Gas turbine plant. SOC. RATEAU, and ANXIONNAZ, R. July 14, 1950 [Sept. 30, 1949], No 17690/50. Class 110(iii) In a jet-propulsion engine one or more pumps for injecting water, water and methanol or reheat fuel are driven by one or more separate low output gas turbines fed with a fraction of the motive gas generated in the combustion chamber. The low output turbines d, m, operate pumps f, n adapted respectively to inject water or water and methanol and to supply reheat fuel. The turbines are controlled by manually operable valves k and are arranged in parallel with the high output turbine a driving the compressor b. In a modification, the turbines d, m are arranged in series with the turbine a and exhaust to atmosphere in a direction parallel to the main jet. In further modifications applicable to ducted fan turbine engines having high- and low-pressure turbines respectively driving a high-pressure compressor and the ducted fan, the low-output turbines are arranged in parallel with the high- or the low-pressure turbine.
Patent GB-356282-A (GB)
Title: Improvements in or relating to arrangements for controlling electric motors
IPC: H02P7/282
Filed: 1930-06-07
Abstract: 356,282. Motors. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and DAVIES, E. C., of General Electric Co., Witton, Birmingham. June 7, 1930, No. 17743. [Classes 35 and 38 (iv).] Exciting.-A motor 1 operating on a constant-current supply 2, 3 is controlled by a regulator 7 which prevents excessive speed with light loads. The field 4 is energized across a portion of a potentiometer 75 supplied from a constant-voltage supply 78, 79, one end of the field being connected to a brush 17 on the regulator 7 and the other end being connected by a manually-operated drum to some tapping on the potentiometer. Field 5 is connected across the armature 1 in a direction to oppose the field 4. The regulator 7 rotates towards the tapping associated with the drum and to a position depending on the speed of the motor and then reduces the strength of the field 4 and thus the speed. Also, increase of voltage across the armature causes an increase in the opposing field and thus also a reduction of speed. The device for moving the regulator 7 is shown in Fig. 2. An eddy-current drag member 135 rotates with the motor shaft 136 and co-operates with an electromagnet 137. The torque between the member 135 and the magnet 137 depends on the motor speed and causes the magnet 137, its shaft 139, and the regulator, to be rotated against the increasing bias of a centring spring 144. Thus the regulator assumes a position depending on the speed and direction of rotation of the motor. A permanent magnet may be substituted for the electromagnet 137. The eddy-current device may be replaced by a hydraulic device in which water pressure increases with speed and actuates the contact 17.
Patent GB-630856-A (GB)
Title: Improvements in tape dispensers
IPC: B65H35/00
Filed: 1946-06-13
Abstract: 630,856. Tape dispensers. BETTER PACKAGES, Inc. June 13, 1946, No. 17811. Convention date, June 13, 1945. [Class 18] Tape from a supply roll 26 is led round a roller 46 to a severing device 52. A measuring device 64 is adapted to be operated by the roller 46 to indicate the length of tape withdrawn and a stop mechanism associated with the measuring device may be set to permit predetermined lengths of tape to be withdrawn. A friction wheel 80 on the end of the roller shaft 48 engages the inside of the flange of a drum 64 provided with a scale 68 and mounted on one arm 60 of a bell crank lever 56. The other arm of the lever 56 supports the cutter member 52. A coiled spring 74 is attached to the drum 64 so that, on withdrawal of a length of tape, the friction wheel 80 rotates the drum 64 against the action of the spring 74. The action of severing the length of tape on the cutter member 52 causes the bell crank lever 56 to pivot and to move the drum away from the friction wheel 80 so that the drum, under the influence of the spring 74, returns to its original position. A pin 122 may be provided on the drum 64 to engage on arm 124 of a pawl 126 and thereby cause the pawl to engage a ratchet 132 on the roller shaft 48 to prevent further rotation of the roller. A bracket 120 mounted on the drum is adapted to engage a stop pin 100 to limit the return movement of the drum. The pin 100 may be positioned in a slot 102 and thereby determine the amount of tape to be delivered. Alternatively, the pin 100 may be positioned in the slot to limit the movement of the drum under the influence of the friction wheel in which case the stopping of the roller 46 is effected by the frictional contact between the friction wheel and drum and a fixed pin is engaged by the bracket on the return movement of the drum.
Patent GB-893348-A (GB)
Title: Container for fluent materials
Inventor: SCHOLLE WILLIAM RAYMOND
IPC: B65D5/70
Filed: 1959-05-26
Abstract: 893,348. Packages; cartons. SCHOLLE CHEMICAL CORPORATION. May 26, 1959, No. 17876/59. Classes 18 and 94(1). Liquids or powders are contained in a polyethylene, cellulose acelate or vinyl multi-ply bag, Fig. 3, having inner and outer plies 10, 12 each sealed independently at 11 and 13 but sealed at the top 15 after filling by a single fourply seam. The bag is contained in a rigid fibreboard outer container, Fig. 8, provided with perforations 26, 27 permitting a part of the top flaps, that are sealed together after insertion of the filled bag, to be lifted up to give access to a corner of the bag which is then cut off to form a pouring spout. The fibreboard container may have metal edges. The bag may be formed from a tube or from sheet material folded to tubular form and sealed with a longitudinal seam.
Patent GB-363983-A (GB)
Title: Improvements in and relating to automatic stopping devices for gramophones
IPC: G11B17/02
Filed: 1930-06-11
Abstract: 363,983. Gramophones. KAY, F., 223, New Cross Road, and TRUSTY, G. J., 111, Well Hall Road, Eltham, both in London. June 11, 1930, No. 17922. [Class 40 (ii).] A gramophone automatic-stop mechanism, of the kind in which a brake is applied by a spring upon release of a lever actuated from the tone-arm, is built up on a plate 1 having shoulders 2, 3 and fastened to the motor-board through holes 4. Plates 6, 7 mounted upon the plate 1 form a channel for a slidable member 8, and a lever 12 pivoted upon the plate 1 by a screw 13 has an indent 14 adapted to be engaged by a tooth 15 on the slidable member 8. Upon the plate 6 is pivoted a crank 18 to which is frictionally connected an arm 26 the upturned end 27 of which is adapted to make contact with the tone-arm. The inner end of the crank 18 is connected to the slidable member 8 by a screw 17 and between the latter and a fastener 19 on the member 12 is a tension spring 15. The member 12 is provided with an arm 20 by which it may be moved from the operative position, Fig. 1, to the inoperative position, Fig. 2. In operation the lever 26 is adjusted to the desired position for stopping the turntable and the arm 20 is moved to the inoperative position, Fig. 2, when the indent 14 is engaged by the tooth 15. When the tone-arm contacts with the end 27 of the arm 26 an outwards movement of the inner end of the crank 18 results and the parts 14, 15 are disengaged so that the member 12, under the influence of the spring 16, is rotated to bring the brake pad 25 into engagement with the turntable 30.
Patent GB-1106855-A (GB)
Title: A method of and apparatus for drying minerals
IPC: F26B3/18
Filed: 1966-04-25
Abstract: 1,106,855. Drying minerals by molten metal. ESSENER TEERSCHOTTER G.m.b.H. 25 April, 1966 [23 April, 1965], No. 17931/66. Heading F4G. In apparatus for drying minerals, the minerals are fed through an inlet 6 on to the surface of a bed of metal alloy 3 in a tank above a heating chamber 1 and are drawn off as a thin layer floating on the material or together with a portion of the mineral through an outlet 8. As shown, a conveyor belt 9 having scraper blades 10 may be used to move the minerals from inlet to outlet, or the molten metal may be pumped around the tank or through a pipe circuit.
Patent GB-180143-A (GB)
Abstract: 180,143. Lucas, H., Lucas, O., and Ireland, H. W. F. April 1, 1921. Electromagnetic switches.-A cut-out for the electric installations of motor vehicles comprises an iron base a, three limbs b, c, d, an armature h pivoted at g, a series winding e, a shunt winding f, contacts l, m, and a spring i acting to separate the contacts. When the dynamo is charging, the two windings reinforce one another to maintain the contacts l, m closed, but a heavy reverse current will divert most of the series winding flux through the limb b and the contacts l, m will be separated.
Patent GB-108627-A (GB)
Title: Improvements in Mud or Splash Guards for Vehicle Wheels.
Inventor: GUISE CHARLES
Filed: 1916-11-07
Abstract: 108,627. Guise, C., and Southall, T. J. Nov. 7, 1916. Mud-guards rotating with wheels.-A ring a of rubber or other flexible material is formed with an enlargement a<4> on its inner edge for attachment to projecting pins or studs secured in the side of the tyre b. The studs c, c' shown are of the press-button type, but it is stated that ordinary screwed studs projecting through the guard and fitted with nuts may be employed.
Patent GB-1440867-A (GB)
Title: Composite sliding member
IPC: B22F5/00
Filed: 1974-04-25
Abstract: 1440867 Carbon-Ti bronze composite material GENERAL MOTORS CORP 25 April 1974 [2 May 1973] 18143/74 Headings C7A and C7D A metal-carbon composite sliding member formed of carbon uniformly dispersed in and metallurgically bonded to a copper-base alloy consisting by weight of:- Ti 5 to 20% Pb 3 to 22% Sn 0 to 15% Cu balance the carbon forming 20 to 80% by volume of said composite member and said metallurgical bond comprising titanium carbide. The composite material may be prepared by a powder metallurgy route e.g. by hot pressing at 1,000 to 6,000 p.s.i. at up to 982C in vacuum or argon atmosphere, isostatic hot pressing, atmospheric hot pressing using a titanium hydride additive to provide a protective atmosphere, cold pressing and sintering, cold pressing, presintering and hot forming, warm forming e.g. by heating the powder in argon to 982C and forging at 20 tons/sq inch and 260 C or by extrusion. The powder mixture employed may comprise titanium bronze powder or copper, titanium, lead and optionally tin powder, anthracite coal, nitreous carbon, synthetic crystalline carbon or amorphous carbon and graphite mixtures, the carbon being of particle size less than 0.074 mm. The composite material may be heattreated at 427 to 482 C and used as a seal in rotary I.C. engines.
Patent GB-596048-A (GB)
Title: Improvements in photographic diazotype material
IPC: G03C1/58
Filed: 1945-07-16
Abstract: 596,048. Photographic diazotype material. GENERAL ANILINE & FILM CORPORATION. July 16, 1945, No. 18186. Convention date, July 15, 1944. [Class 98 (ii)] Photographic diazotype material comprises a diazotized p-diamine of the. benzene or naphthalene series or o-aminonaphthol and two coupling components of greatly different coupling potentials with respect to the diazo compound. The low density areas are of a different colour to the high density areas. The material may comprise (a) p-diazodiphenylamine, mhydroxyphenylurea (slow), and 2: 3- dihydroxynaphthalene (fast) ; (b)p-diazo-N-diethylm-toluidine, 2 : 3-dihydroxynaphthalene-6- sulphonic acid (slow), and acetoacetanilide (fast) ; or (c) p-diazo-N-diethylaniline, 2 : 3- dihydroxynaphthalene (fast), and 7-hydroxy- 1 : 2-naphthimidazole (slow). The Specification as open to inspection under Sect. 91 comprises also the use of a single slowcoupling coupling component with or without an additional fast-coupling diazo compound, and refers to materials comprising (1) p-diazo-N- diethyl - m - toluidine, 1 - diazo - 2 - naphthol-4- sulphonic acid, and 2: 3-dihydroxynaphthalene-6-sulphonic acid ; or (2) 1-diazo-2-naphthol- 4-sulphonic acid and 2 : 3-dihydroxynaphthalene-6-sulphonic acid. This subject-matter does not appear in the Specification as accepted.
Patent GB-789894-A (GB)
Title: Improvements in or relating to purification of thorium
Inventor: LIND ROBERT
IPC: C01F15/00
Filed: 1955-06-23
Abstract: Thorium compounds mixed with carbon are chlorinated at 700-1000 DEG C., the volatile products fractionated and thorium tetrachloride of greater purity condensed.  In the example, a mixture of thorium and cerium sulphates was mixed with carbon and the mixtures briquetted with water.  The briquettes were heated to 850 DEG  C. in the lower part of a vertical silica tube to which chlorine was admitted and the vapours rose through ceramic or porous carbon packing maintained at about 870 DEG  C., and were condensed on a water-cooled silica finger.  The first fraction contained less than 0.5 per cent of cerium.  Other rare earth metals and manganese, iron, copper and lead may be similarly reduced or removed.
Patent GB-237267-A (GB)
Title: Temporary or quickly made fluid tight joint for fluid conduits
IPC: F16N21/04
Filed: 1925-07-16
Abstract: 237,267. Tecalemit, Ltd., (Assignees of Soc. Anon. des Etablissements Tecalemit). July 17, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Overlap joints with packing compressed radially on assembly. -A pipe union, more particularly for use in connection with lubricating systems, comprises a conical nipple h, on the part to be lubricated, and a socket member a, on the supply conduit, the mouth of said socket member a being formed with an annular groove a<1> adapted to receive a leather &c. packing-ring b which coacts with the nipple h. The nipple h is provided with the usual spring- controlled valve d. In a modification, the packing-ring is positioned by a flanged tapped collar screwed on the end of the conduit a, and the nipple h is of cylindrical shape terminated by a substantially spherical convex upper part.
Patent GB-624824-A (GB)
Title: Improvements relating to shaft couplings
IPC: F16D3/68
Filed: 1947-07-10
Abstract: 624,824. Yieldable couplings. LAGONDA, Ltd., and GREEN, G. W. A. July 10, 1947, No. 18309. Addition to 586,298. [Class 80 (ii)] The coupling of the parent Specification is modified by preloading in compression the rubber sandwiches 7 so that in operation they are always in compression. A flat plate may be interspaced d between the outside of the rubber sandwiches and the slot in the floating disc. Alternatively, as shown, the plates 11a may be segmental in section and engage complementary shaped slots 4a in the floating disc 3.
Patent GB-613611-A (GB)
Title: Ring units for ring balances for measuring volume and pressure
IPC: F42B5/16
Filed: 1946-06-18
Abstract: 613,611. Liquid - level pressure gauges. LANDIS & GYR SOC. ANON. June 18, 1946, Nos. 18321 and 18322. Convention dates, June 27, 1945, and Dec. 1, 1945. [Class 106 (ii)] In an instrument of the hydraulic ring balance type, the ring unit consists of a pipe of the same cross-section throughout, and an extension of the relative range of measurement is obtained by providing one horizontal loop in the pipe in the mean horizontal plane of the ring at each side of the centre. As shown, the ring 1 is provided with the usual sealing liquid 3 in the lower part, the upper parts 6, 7 being connected to the sources of pressure, and is supported by a knife edge 9 on a seat 8. Two horizontal loops 12, 13 are formed in the ring, and the. sealing liquid normally fills the lower part of the ring and rises to half the height of the two loops. In a modification, each loop is a separate pipe joined to the ring 1 by soldering &c. In another form, an intermediate piece is inset at each side of the ring to which a looped pipe is secured. A pointer on the ring co-operates with a scale 10, and a counterpoise 11 enables the range of measurement to be varied.
Patent GB-255883-A (GB)
Title: Improved charging apparatus for rotary furnaces
IPC: C10B1/10
Filed: 1925-12-29
Abstract: 255,883. Wisner, C. B. Jan. 13, 1925, [Convention date]. Charging and discharging.-A rotary furnace is provided with a gas-tight charging device comprising a vertical conduit 47<1> which is connected to a feed-pipe 47 extending upwardly from the furnace closure plate and contains a rotary disc 48 which is cut radially and bent as shown to form a feed slot 49. A portion 51 of the wall of the conduit, which carries a contact 52, is pivoted, so that when the level of the material in the conduit falls below the lower edge of the pivoted section, the circuit of the motor drive for the feed disc is broken. By this means a sufficient depth of material is always maintained in the conduit to provide a seal. A similar device may be provided at the discharge end of the furnace.
Patent GB-864213-A (GB)
Title: Apparatus for vacuum degasification of molten metals
IPC: C21C7/10
Filed: 1959-05-29
Abstract: 864,213. Degasifying metals. HERAEUS G.m.b.H., W. C., and RUHRSTAHL A. G. May 29, 1959 [May 30, 1958], No. 18404/59. Class 72 An immersion tube for delivering molter metal to a vacuum chamber comprises an annular passage communicating with the interior of the tube by an aperture or apertures permeable only to gas. As shown, the tube may be made from a metal tube 1 having a ceramic lining 2 connected by flanges to a ceramic tube 5, arranged to leave an annular passage 6 connected to a gas supply pipe 7, and having a narrow gap 5 leading to the interior of the tube through which the gas may pass.
Patent GB-1021689-A (GB)
Title: Improvements in or relating to rotary pumps and motors
IPC: F01C1/324
Filed: 1963-05-09
Abstract: 1,021,689. Gyratory-piston pumps and motors. FRANK DAHLBERG A.B. May 9, 1963 [May 11, 1962], No. 18453/63. Heading F1F. A rotary pump, or motor, of the gyratorypiston type comprises a piston 2 (Fig. 2, not shown) lodged in a cylindrical chamber 5 in a casing 1, the end of a shaft 3 being provided with an integral radial projection or lug 9 which engages with a cylindrical bore 10 in the piston. Clearance is provided between the shaft and the bore such that when the pump is in operation the lug abuts the wall of the bore at a point lying in a radial plane containing the central axis of the shaft and angularly displaced from a similar plane in which the piston makes contact with the wall of the cylindrical chamber. A partition 7 is slidably housed in a slot 8 formed in the casing and its radially innermost end engages with a recess 4 in the piston. A fluidinlet duct 11 and a fluid-outlet duct 12 are disposed on either side of the partition. The partition may be made of flexible material e.g. synthetic rubber and the other parts of the pump may be made of synthetic resin material e.g. actual resin. The shaft may be rotatable and the casing stationary, or the shaft may be fixed and the casing rotatable.