baber/WOPTO huggingface dataset:
Patent GB-859962-A (GB)
Title: A pipe t-joint for central heating or cooling systems
Inventor: HENNINGSSON THOM
IPC: F24D3/10
Filed: 1958-03-12
Abstract: 859,962. Junction pieces. VABIX A.B. March 12, 1958, No. 7911/58. Class 99(1). A T-connector for connecting a radiator in a one-pipe heating or cooling system contains a flow divider in the form of a short length of tube 8 with part of its side pressed in to form a sloping groove 5 terminating in a narrower short groove 4 adjacent the side branch 1 which is connected to the inlet or outlet of the radiator. The main portion of the connector has tapped openings 3, 6 and the flow is from 3 to 6 for an ejector action if the branch 1 is connected to the radiator outlet and from 6 to 3 for an injector action if the branch is connected to the radiator inlet. There may be a double T-connector having two grooved tubes 8 arranged respectively as an injector and an ejector.
Patent GB-1495586-A (GB)
Title: Process of hydrodesulphurizing a heavy petroleum hydrocarbon oil
IPC: C10G65/04
Filed: 1975-02-26
Abstract: 1495586 Hydrodesulphurization of heavy oils NIPPON OIL CO Ltd 26 Feb 1975 [1 March 1974] 7952/75 Heading C5E Petroleum hydrocarbons containing distillation residual oils are hydrodesulphurized by a two stage process in which the oil is contacted with hydrogen in a first reactor having a recycling fluidized bed of catalyst and then in a second reactor having a fixed bed of catalyst. The catalysts used consist of one or more of Cr, Mo, W, Fe, Co, Ni and V components on a porous carrier: the carrier of the catalyst used in the first reactor has more than 50% of its total pore volume in pores of radius at least 50 Š and the carrier of the catalyst used in the second reactor has a surface area of 150-450 m.<SP>2</SP>/g., a pore volume of 0À5-1À5 c.c./g. and an average pore radius of 40-100 Š. The first reactor has a fluidization initiating zone 14 from which a fluidized mixture of catalyst, hydrogen and oil moves upwardly into a separation zone 17 and a settling zone 18 through which the separated catalyst settles and is recycled to the zone 14. The first reaction zone can be operated at 200-500‹ C., 50-300 kg./cm.<SP>2</SP>g., L.H.S. V. of 0À2-10 v./v./hr. and 100-300 litres at N.T.P. of hydrogen per litre of oil. The second reaction zone can be operated at 300-500‹ C., a hydrogen pressure of 50-300 kg./cm.<SP>2</SP>g., a L.H.S.V. of 0À2-5 v./v./hr and 300-3000 litres at N.T.P. of hydrogen per litre of oil. The effluent from the fluidized zone is separated into a gas stream 20 and a liquid 22, either within or outside the first reaction zone, a portion 23 of the oil 22 can be recycled to assist fluidization and the remainder 25 is mixed with hydrogen and passed into the second reactor 12. The catalysts used in the example contain molybdenum together with nickel and/or cobalt; the carriers listed as suitable are alumina, silica-alumina, bauxite, laterite, magnetite, diatomaceous earth, clay, yellow ochre and bentonite.
Patent GB-1286606-A (GB)
Title: Method for the stabilization of dichlorobutenes
IPC: C07C17/42
Filed: 1969-08-20
Abstract: 1286606 Stabilization of dichlorobutenes DENKI KAGAKU KOGYO KK 20 Aug 1969 [20 Aug 19681 8027/71 Divided out of 41639/69 Heading C2C 3,4 - Dichloro - butene - I and/or 1,4 - dichloro-butene-2 are stabilized by a phenol. Phenols specified are pyrogallol, hydroquinone, α-naphthol, #-naphthol and o-amino-phenol.
Patent GB-1376783-A (GB)
Title: Polyolefin blends
IPC: C08L23/02
Filed: 1972-02-22
Abstract: 1376783 Polyolefin blends MONTECATINI EDISON SpA 22 Feb 1972 [26 Feb 1971] 8222/72 Headings C3G and C3P Binary polyolefin blends compise (1) 20 to 80 parts by weight of a propylene homopolymer or copolymer with up to 20 weight per cent of ethylene having an intrinsic viscosity of 4 to 9 dl./g. and (2) 80 to 20 parts by weight of polyethylene having an intrinsic viscosity of 0À5 to 3 dl./g. and a density of 0À95 to 0À97 g./c.c. The polyethylene may contain from 1 to 3 weight per cent of propylene units. The blends may be extruded to form films, and injection-moulded and blow-moulded to form bottles. Examples describe compositions comprising polyethylene, phenolic antioxidant, calcium stearate and (1-3) polypropylene and (4) polypropylene with 3À7 weight per cent of grafted polyethylene.
Patent GB-547760-A (GB)
Title: Improvements in or relating to automatic safety shut-off valve devices
IPC: F16K17/00
Filed: 1941-06-30
Abstract: 547,760. Fluid-actuated valves. KEITH BLACKMAN, Ltd., and KEITH, G. June 30, 1941, No. 8226. [Class 135] A combined automatic safety cut-off and regulator valve has the valve member connected to a pressure responsive diaphragm subject to outlet pressure permanently loaded in the valve closing direction and has valve regulating means operable from the exterior of the casing to adjust the valve member in the valve closing direction. The valve closes with an abnormal drop in outlet pressure and remains closed until all subsidiary valves connected to the outlet conduit have been closed. In the form shown in the Figure the valve member 1 which co-operates with a removable seat 22 is formed on the end of a spindle 7 secured to a diaphragm by a nut 11 engaging a screwed bail on the spindle. The chamber 6a beneath the diaphragm is connected to the inlet conduit by a passage provided with a metering orifice 20 and to the outlet conduit 19a by radial and axial passages in the spindle. The diaphragm is loaded by a spring 4 arranged between a backing plate 10 on the diaphragm and a plate 15 resting against a shoulder 16 on a screwed spindle passing to the outside of the casing where it is fitted with a handwheel 14. An extension on the spindle 12 engages the end of the spindle 7 to limit the compression of the spring and hold the valve a desired distance from the valve seat. In a modification pressure is admitted to the chamber below the valve and the metering orifice is housed in the passage 18. In a further modification the diaphragm itself cooperates with the valve seat.
Patent GB-181801-A (GB)
Title: Improvements in splash guards for the wheels of vehicles
IPC: B62D25/18
Filed: 1921-03-16
Abstract: 181,801. McBeath, D. S., and Fairbairn, J. March 16, 1921. Lateral-splash guards. - A splash-guard for vehicle wheels comprises a plate q suspended by a bracket h from the hub e, a flexible splashguard k carried by an iron band l bent inwardly at its ends, a rod f supported in bearings in the bracket h and hub e and attached to the plate g by springs i, and a rod a connected at its ends to the hub e and the chassis or existing mudguard respectively. The plate g can swivel about a bolt j and the hub e is carried on ball bearings. on the axle. Reference has been directed by the Comptroller to Specifications 24313/11, 7610/12, 7642/13, and 1087/14.
Patent GB-541078-A (GB)
Title: Improvements in and relating to airscrews
IPC: B64C11/20
Filed: 1940-05-08
Abstract: 541,078. Airscrew blades. BRIERLEY, W., and ROTOL AIRSCREWS, Ltd. May 8, 1940, No. 8317. [Class 114] The leading edge of airscrew blades is modified by strips 11 of stainless steel the abutting edges of which are preferably arranged transversely of the length of the blade. Various modifications are described in which the strips are either flush with or stand proud of the surface of the blade. Wire gauge covering may be employed in connection with the strips.
Patent GB-126488-A (GB)
Title: Improvement in Tubular Stop Valves and the like.
Inventor: ROSE DAVID
IPC: F16K3/24
Filed: 1918-05-21
Abstract: 126,488. Rose, D. May 21, 1918. Piston valves. - A piston valve comprising a tubular member 1 adapted to work in a recess arranged at an angle to the main passage has the end of the member 1 adapted to come into metalto-rnetal contact with a seat 4 situated at the bottom of the recess. The seat may be formed on a separate member 2 held against rotation by a key 7 and secured in position by the cover 6. Either the casing or seat is formed with a guidemember 8 extending above the valve seat and provided with a passage forming a continuation of the main passage. The main passage may be lined with an alloy consisting of 67 per cent. nickel 28 per cent copper, and 5 per cent other metals made direct from the ore without separating the constituent metals.
Patent GB-100691-A (GB)
Title: Improvements in or relating to a Method of Protecting Ships and Apparatus for use therein.
Inventor: DEMETRIO MAGGIORA
IPC: B63G9/00
Filed: 1916-06-13
Abstract: 100,691. Maggiora, D. May 19, 1915, [Convention date]. Void [Published under Sect. 91 of the Act]. Torpedo screens.-A vessel is protected from the effects of a torpedo &c. by simultaneously discharging groups of projectiles of different ranges so as to cause a zone of disturbance in the surrounding water. Fig. 3 shows the firing-apparatus comprising a number of gun barrels 15 - - 20 in communication with an explosion chamber 12 and adjusted by means of rods 21 - - 26.
Patent GB-184129-A (GB)
Title: Improvements in or relating to the dehydration of alcohol
IPC: B01D3/00
Filed: 1922-03-22
Abstract: In dyhydrating alcohol as described in the parent Specification, a solution in glycerine of an anhydrous or hygroscopic salt such as calcium chloride, zinc chloride, or potassium carbonate is used as the dehydrating agent.
Patent GB-1057614-A (GB)
Title: Pulse shaping regeneration circuit
IPC: H03K5/135
Filed: 1965-02-26
Abstract: 1,057,614. Transistor pulse circuits. VYZKUMNY USTAV MATEMATICK¦CH STROJU. Feb. 26, 1965 [Feb. 28, 1964], No. 8377/65. Heading H3T. In a pulse delaying circuit, pulses at 11 are sampled at 10 by clock pulses at 12, transistor 23 being turned on during the clock pulse so that previously charged capacitor 14 becomes discharged. The clock pulses terminate before the sampled pulse. The sampling circuit 10 comprises a transistor (not shown) arranged to be saturated so as to delay the trailing edge of the pulse at 13. Capacitor 24 is charged via diode 25 by the positive-going trailing edge of the pulse at 13, and retains its charge until diode 26 is turned on by an auxiliary pulse at 27. A delayed positive-going pulse is thus available at 31 which is passed via an emitter follower 30 to an output terminal 32.
Patent GB-1466848-A (GB)
Title: Process for producing a polymer of ethylene
IPC: C08F2/02
Filed: 1974-05-24
Abstract: 1466848 Ethylene polymerization in bulk SNAMPROGETTI SpA 24 May 1974 [15 June 1973] 08378/76 Divided out of 1442465 Heading C3P Ethylene is polymerized in a reaction medium comprising the liquid monomer in the presence of a catalyst comprising (A) an organoaluminium compound of formula RAlX 2  where R is hydrocarbyl and X is halogen and (B) a vanadium compound of the formula V(NR<SP>1</SP>) 4  where R<SP>1</SP> is hydrocarbyl. The process is carried out below the critical temperature of ethylene and at a pressure at or slightly above the vapour pressure of liquid ethylene at the polymerization temperature. The example refers to the preparation of polyethylene in liquid ethylene using EtAlCl 2  and V(NMe 2 ) 4 .
Patent GB-985555-A (GB)
Title: Catalytic production of nitriles
IPC: B01J23/00
Filed: 1961-03-08
Abstract: Nitriles are obtained by reacting nitric oxide with an alkyl-substituted organic compound containing at least one alkyl group directly attached to a carbon atom which is in turn attached to another carbon atom by a double bond, at a temperature of 250 DEG  to 700 DEG  C. in the presence of a catalyst containing thallium which is at least partly in combined form.  The nitric oxide may be used in the form of ammonia oxidation product gas.  The catalyst may also contain, in combined form, boron, phosphorus, iron, lead, and other metals of Groups Ib, IIa, IIb, IIIa, IVa, Va, Vb, VIb, VIIb, and VIII of the Periodic Table (as set out in Lange's Handbook of Chemistry, 9th Edition (1956)).  A support may be incorporated in the catalyst, inorganic oxides being a suitable class of compounds in this respect. Examples describe the conversion of propylene to acrylonitrile using a variety of thallium-containing catalysts containing in typical examples iron, lead, chromium, silver, palladium, tin or calcium on a support of oxides of silicon, aluminium, iron, sodium or thorium. Other preparations mentioned are benzonitrile from toluene, the corresponding mono- and di-nitriles from xylenes, and nicotinonitrile from b -picoline.  Certain of the catalyst compositions described are novel and they form the subject-matter of divisional Specification 985,556.  Specification 729,013 also is referred to.
Patent GB-929903-A (GB)
Title: Improvements in or relating to devices for the suspension of gramophone records for storage purposes
IPC: B42F15/00
Filed: 1961-03-08
Abstract: 929,903. Suspension filing devices. K. A. MERTEN, and J. KIND. March 8, 1961 [June 29, 1960], No. 8560/61. Class 146 (1). A suspension device for gramophone records contained in envelopes, comprises brackets 5 screwed to the opposite side walls of a cabinet, and parallel rails 11, the ends of said rails being bentover, firstly towards each other and then downwardly, to form L- shaped ends engaging in slots 13 in the brackets 5. The free ends of the rails are secured together, e.g. by welding, and a clip 14, having bent-over ends 15 to engage the rails, is provided to maintain said rails in parallel relationship. The slots 13 may be elongated whereby the rails may be adjusted in position. The gramophone-record envelopes are supported by suspension fittings 16 having transversely extending tongues 17 engaging slits in the envelope and recesses 20, 21 to engage said rails. The rails may be formed from a single length of wire, the vertically extending ends 12 at one end of the device being formed by doubling the wire back on itself. In a modification, the rails are each formed in two parts, one part being telescopically slidable in the other. Specification 929,904 is referred to.
Patent GB-934411-A (GB)
Title: Improvements in or relating to implements for laterally displacing crop lying on theground
IPC: A01D78/00
Filed: 1960-03-10
Abstract: 934,411. Haymaking machines. C. VAN DER LELY. March 10, 1960 [April 4, 1959], No. 8573/60. Class 6(3). A front-mounted swath-splitter comprises a frame 10 secured to the front of a tractor 18 and having mountings 19-22 positioned so that rake-wheels 1-4 can be arranged in two groups each having at least two diverging rakewheels. The frame is mainly U-shaped with limbs 11, 12 of unequal length, the longer limb terminating in a bearing 28 for a caster-wheel 27. Beams 9, 23 are provided with mountings 19, 21, and 5-8, some of these providing alternative positions for the rake-wheels when arranged for side-delivery, Fig. 2.
Patent GB-1182597-A (GB)
Title: Velocity Transformer
Inventor: ASPIN PETER
IPC: B06B3/00
Filed: 1966-02-28
Abstract: 1,182,597. Seaming non-metallic sheet material. E. S. & A. ROBINSON (HOLDINGS) Ltd. 28 Feb., 1967 [28 Feb., 1966], No. 8632/66. Heading B5K. [Also in Division H4] A velocity transformer comprises a body 2 (Fig. 1) or 10 (Fig. 4) adapted at one end for connection to a high frequency vibration source and a blade 3 or 11, 12 at the opposite end terminating in an elongate working surface 7 or 17 whose width is greater than one quarter the wavelength (#/4) of sound in the material at the frequency employed. The blade may comprise a single portion 3 or a plurality of longitudinally adjacent portions 11, 12. The length of the body 2 or 10 and of the blade 3 or 11, 12 is #/4 or an odd multiple thereof and the length of each of the longitudinally adjacent portions 11, 12 is #/4 or a multiple thereof. One or more longitudinally arranged slots 5 or 13, 15 are provided so that, apart from the regions of the working face 7 or 17, the junction between body (2 or 10) and blade (3 or 11, 12) and any junction between blade portions 11, 12 there is no unbroken transverse dimension of the blade greater than #/4. The velocity transformer is of titanium. The slots 5, 13, 15 are void or filled with a material other than that of the velocity transformer. Each slot terminates at its end remote from the working face in an enlarged rounded aperture 6 or 14, 16. The blade is of straight-sided taper of exponential taper or parallel sided. The velocity transformer is a bar seal for the ultrasonic sealing of layers of film material.
Patent GB-1496294-A (GB)
Title: Regulated dc power supply
IPC: G05F1/59
Filed: 1976-03-04
Abstract: 1496294 Automatic control of voltage and current NCR CORP 4 March 1976 [10 March 1975] 08683/76 Heading G3R A D.C. supply circuit includes a first differential amplifier which controls a voltage regulating device by comparing the value of the circuit output voltage with a reference voltage. The magnitude of the reference voltage is automatically reduced by a second differential amplifier if the output current exceeds a predetermined level. As shown, a load 2, which may be a data processor, is energized by a number of identically constructed supply circuits 1, 1', 1" connected in parallel. Each circuit includes a series regulating transistor 4 controlled by an amplifier 5 responsive to a potentiometer 10 sensing the load voltage and a reference voltage at the junction 6 of a divider 7,8. The load current is sensed by a series resistor 15 providing one input to a second amplifier 12 which is also connected to a reference source 13, 14. When the current exceeds a given level, the amplifier 12 turns on a transistor 11 which effectively reduces the reference voltage for the first amplifier 5, thus limiting the current by reducing the regulated voltage.  When several supply circuits 1, 1' &c. are used, that regulated to the highest voltage will initially supply the load until the limiting current value is reached, whereupon constant current operation will take over and further current demand will be supplied by one or more of the other circuits.
Patent GB-917264-A (GB)
Title: Improvements in or relating to electrical installations
IPC: H02J7/16
Filed: 1959-03-13
Abstract: 917,264. Inductor alternators. GALLO, G. March 13, 1959, No. 8696/59. Class 35. The output winding III of an inductor alternator feeds a load U and battery B across rectifier AC, a series compounding excitation winding I is connected in series with the load, and a shunt excitation winding II is connected through an additional plate R on the rectifier or through an auxiliary rectifier in such a way as to prevent reverse flow of battery current through this winding when the machine is inoperative.
Patent GB-375291-A (GB)
Title: Improvements relating to electrically operated pumps
IPC: F16N13/06
Filed: 1931-03-21
Abstract: 375,291. Electrically-operated reciprocating pumps. LUCAS, Ltd., J. and SIMPSON, R., Great King Street, Birming- ham. March 21, 1931, No. 8713. [Class 102 (i).] An electricallyoperated pump for supplying lubricating-oil, or for supplying fuel to a carburetter, comprises in combination a dashpot and a snap switch. The pump barrel b is immersed in a reservoir a, and the plunger e controls a suction port f covered by a strainer j. The head of the plunger is formed as a valve i seating in a dashpot piston g moving in a cylinder h. During the discharge stroke the cylinder h discharges past the valve i, and during the suction stroke oil enters the cylinder h from the reservoir by leakage past the valve i. or through a separate leak. The discharge stroke is effected by the movement of the core l of the solenoid m, and the suction stroke by springs o. One switch contact is carried by a bracket p on the core l, and the other by a blade s, pivoted at one end to a stationary bracket t, and at the other end co-operating with a bent spring u to effect a quick make-andbreak. Specification 375,292 is referred to.
Patent GB-147262-A (GB)
Title: Improvements in or relating to mechanical excavators
IPC: E02F5/02
Filed: 1919-04-08
Abstract: 147,262. Summers, O. C. April 8, 1919. Endless-chain machines.-A trench excavator consists of an excavating unit, comprising an adjustably inclined frame and an endless chain of buckets movable round the periphery thereof, which is detachably secured to a self-propelled vehicle, the bucket chain being driven from a power unit on the vehicle and being adapted to discharge the spoil on to a shoot which distributes it along the side of the trench. The excavating unit B may be mounted at the side of the vehicle A, as shown in Fig. 1, or towed along in the rear of it. The unit comprises a pair of frames 1, 2, connected at their upper ends by a yoke 4 provided with a downward extension 18, preferably having a squared end, which fits in a casing 20 mounted on a roller 19. The squared end is provided with a rack with which engages a pinion 23 by means of which the height from the ground of the yoke 4, and thus the inclination of the frames 1, 2, may be adjusted. The outer end of the frames is supported on rollers 13 the spindles 14 of which are carried by rods 15 which are adjusted by means of bolts 16 in slots 17 in the frames, so that the depth of cut may be varied. The rollers 13, 19 run on the surface of the ground. The frames are detachably secured to the side of the vehicle by sleeves 32, 35 which slide on arms 30, 31 fixed to the vehicle, the distance of the excavating unit from the vehicle being adjusted by pins. passing through one or other of a series of holes in the sleeves and arms. As the buckets become inverted, they discharge the spoil on to a shoot 27 which is held by brackets 28 transversely beneath the excavator, and is inclined and of such length as to deposit the spoil along the side of the trench and at the desired distance therefrom. The vehicle and excavating unit may be driven from the same or separate power units on the former, which are under the control of the driver. Such units may be electrical, internal-combustion, or steam. In the case of separate steam power units, they may be supplied with steam from the same boiler. The side frames of the excavator may be made in two parts so that the length may be adjusted to take bucket chains of different lengths.
Patent GB-560889-A (GB)
Title: Improvements in building construction
IPC: E04B2/62
Filed: 1942-06-03
Abstract: 560,889. Walls. BRAITHWAITE & CO. ENGINEERS, Ltd., and PARTRIDGE, F. A. June 3, 1942, No. 8909/43. Divided out of 560,814. [Classes 20 (ii) and 20 (iv)] The framework of a building is formed of braced sheet - metal panel frames with side members 10 of curved or angle sections which are joined together at the intersection of the walls to form rigid uprights. The bottom parts of, the side members are secured to anchoring members 12 set in the foundation.