baber/WOPTO huggingface dataset:
Patent GB-641178-A (GB)
Title: Improvements in or relating to pneumatic conveying systems
IPC: B65G53/66
Filed: 1947-09-06
Abstract: 641,178. Pneumatic conveyers. LANSDOWN, R. F. Sept. 6, 1947, No. 24578. [Class 78 (i)] In a pneumatic conveying system means is provided (1) for maintaining substantially constant the supply pressure of the gas and (2) for controlling the quantity of gas supplied in dependence on variations in the gaseous pressure in the conduit, this latter means being disposed between the gas supply source and the conduit. Material is fed into the conduit 6 from the hopper 2, Fig. 1, by a rotary compartmented member 3 of known construction. Compressed gas supplied to the right-hand end of the conduit passes through valves 8, 9, 10 before reaching the material. The valve 8 is a stop valve and the valve 9 a reducing one. The valve 10 is byepassed by a pipe 13, and is shown in Fig. 2 with the gas passing from left to right. The valve 10 consists of a slidable member 19 provided with an aperture 12, Fig. 3, and is movable in guides 21 in the conduit. It is connected at its upper end to a head 15 acted on by a spring 45 and at its lower end is joined to a piston 25 movable in a cylinder 26. The lower end of the cylinder is connected by a pipe 27 to the conduit at 27a and the upper end to exhaust by the pipe 28. When material is supplied to the conduit, the back pressure rises and the piston is moved up to bring the aperture 12 into the conduit. When the conduit contains a venturi restriction 29, the pipe 27 is connected to the nipple 27b. The valve 19 may be actuated electrically, e.g. by movement of the pointer of a pressure-gauge over contacts to control the energization of a solenoid.
Patent GB-384372-A (GB)
Title: Improvements in apparatus for maintaining draught beer in fresh condition
IPC: B67D1/12
Filed: 1931-09-03
Abstract: 384,372. Maintaining beer in fresh condition. MARTIN, J., 28, Norwich Road, Forest Gate, London. Sept. 3, 1931, No. 24749. [Class 102 (i).] Beer withdrawn from a barrel 24 by a beerengine is replaced by beer from a second barrel 23, the barrels being connected by a tube 25 having at one end a vent-peg 27 fitted in the shive of the barrel 24, and at the other a suction appliance, placed in the barrel 23, which permits replenishment of the beer while preventing escape of the natural gases. The appliance comprises a conical member 5 carrying a non-return valve 13 and in screw-threaded engagement with a cylindrical member 6, a filter 17 being held between the two. The appliance has also a circumferential filter 19 and when this is used a removable metal disc 18 covers the filter 17. The appliance may be supported by a flanged member 28 apertured to receive the neck. Specification 260,919, [Class 21, Casks &c.], is referred to.
Patent GB-741054-A (GB)
Title: Improvements in or relating to radial flow turbines and centrifugal compressors
Inventor: BARR JOHN CHARLES
IPC: F01D5/04
Filed: 1952-10-02
Abstract: 741,054. Turbines and compressors. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. Sept. 23, 1953 [Oct. 2, 1952], No. 24751/52. Classes 110(1) and 110(3) A rotor hub member for an inward or outward radial flow turbine or for a centrifugal compressor has slots in the surface thereof for the reception of the root portions of separately-fabricated blades, each slot being formed throughout its length upon an arc lying in a plane normal to the base of the slot. In Figs. 1a, 1b, 1c, the rotor 10 is formed with slots 17 having undercut recesses 16. The slot is formed by milling out an arcuate groove of radius 19 from the centre 20. The slot is formed with a taper increasing radius, the blade root being correspondingly shaped so that the blade becomes tightly locked during operation by means of centrifugal force. In a second embodiment, each blade root is formed with a projection at its radially inner end, the projection engaging a corresponding slot in the rotor hub to 'constitute a locking means against outward displacement. In a third embodiment, the invention is shown applied in the case of a rotor with skewed blades the arc upon which any blade root portion and the corresponding slot in the rotor hub are formed lying in a plane intersecting an axial plane of the rotor hub. In Fig. 4, blades 38 are attached to a single-sided rotor hub 37 and are locked against movement in both directions by flanges on the disc 44 and by a disc 43. Coolant fluid is supplied through a bore 45 in the shaft 33 and passes to the interior of the blades through passages 46, the fluid escaping through apertures 47 at the radially outer ends of the blades. A hollow sheet metal blade 48 is shown in Fig. 5, the 'blade comprising a separately-fabricated root portion 51 and having an internal cavity 49 for the passage of coolant fluid. The plane 52 of the blade does not coincide with the plane 53 normal to the base of the root slot.
Patent GB-881998-A (GB)
Title: Motor vehicle power units
Inventor: ISSIGONIS ALEXANDER ARNOLD
IPC: F16H57/02
Filed: 1959-07-18
Abstract: 881,998. Driving gear. MORRIS MOTORS Ltd. Aug. 23, 1960 [July 18, 1959], No. 24767/59. Class 7(2). [Also in Group XXXI] A motor vehicle having a transversely mounted front or rear engine driving the adjacent pair of wheels, the clutch D, change speed gear E and final drive differential gear (taken from the shaft F) all being incorporated en bloc with the engine is characterised in that the engine flywheel, A, is located closely adjacent to a main crankshaft bearing B and a train of drive gears, C, intermediate the clutch and change-speed gearing is disposed on that side of the flywheel and clutch assembly remote from the crankshaft main bearing.
Patent GB-1274446-A (GB)
Title: Feed device for hollow spindle lathe
Inventor: STANTON RAYMOND SAMUEL
IPC: B23B13/12
Filed: 1968-09-09
Abstract: 1,274,446. Bar stock feed. ALFRED HERBERT Ltd. 21 Aug., 1969 [9 Sept., 1968], no. 42768/68. Heading B3B. A feed device for a hollow spindle lathe comprises a carriage 10 movable along a frame (not shown) at the end of the hollow spindle to pick up workpieces fed from a magazine to a cradle and feed them into the spindle. The carriage includes a rotatable work-engaging device comprising a power operable gripping means 20 that includes a collet 16 axially movable within an outer sleeve 19 to grip a workpiece supported by the cradle. The workpiece is drawn against an adjustable stop 17 fixed relative to the carriage. Pads 26 may be used to protect, e.g. threads on a workpiece. The collet is moved by a fluid pressure device 23. A rod 25 engages a stationary stop to eject a workpiece as the carriage is moved away from the spindle. The carriage may be moved by an endless chain.
Patent GB-1190447-A (GB)
Title: Plants and Methods for Permitting Transplanting of Plants Out of Season, in particular Rose-Trees and Shrubs
Inventor: BOURGET MAURICE
IPC: A01G9/08
Filed: 1967-05-30
Abstract: 1,190,447. Containers for plants. M. BOURGET, A. GESNEL and J. ORARD. 30 May, 1967 [2 June, 1966], No. 24808/67. Heading A1E. [Also in Division B8] Plants uprooted for transplantation are stored by enclosing the roots in a soilless cultivation medium in a container formed of organic material penetrable by the roots so that the whole may be buried in soil at transplantation thus avoiding root disturbance. The container may be formed of a fibrous medium or simply a fine mesh plastics sleeve tied off above and below the roots. A net sleeve may enclose the container which in this case may be formed as a corrugated cardboard truncated conical wall member holding the medium round the roots. The wider end of the wall member is downwards. The root package is dipped in nutriment liquid and may be enclosed in a plastics bag prior to storage, the bag neck being held round the plant stem by an elastic band. The cardboard could be perforated.
Patent GB-1263495-A (GB)
Title: Aluminium alloy wire
IPC: C22F1/04
Filed: 1969-05-15
Abstract: 1,263,495. Al alloy wire. SOUTHWIRE CO. May 15, 1969 [May 21, 1968], No. 24839/69. Heading C7A. Annealed aluminium alloy wire with a diameter of 0À375 to 0À0031 inches and an electrical conducitivity of at least 61% I.A.C.S. contains substantially evenly distributed FeAl 3  inclusions, with a particle size of less than 2, 000, formed by the addition of 0À45 to 0À95% Fe to an alloy mass consisting of 98À95 to 99À46% Al, up to 0À15% Si and trace quantities of impurities. The wire may be made by continuously casting the alloy to form a bar, hot rolling the bar substantially immediately after withdrawal from the mould while still at hot working temperature, drawing the rod to wire without intermediate anneals and then at least partially annealing the wire. The alloy may contain up to 0À05% each of B, Cu, Mg, Mn, Ti, V and Zn up to 0À15% in total. The wires may be coated with an insulating material (e.g. polyvinyl chloride, neoprene or polyethylene) and the insulated wires may be stranded together to form a cable which is provided with an exterior waterproof coating. The wires or cables may be used for telephones or magnets.
Patent GB-728351-A (GB)
Title: Improvements in or relating to fluid flow control valves
IPC: F16K5/04
Filed: 1953-09-08
Abstract: 728,351. Valves. HARTMANN, W. Sept. 8, 1953, No. 24862/53. Class 135. The plug 2 of a rotary cylindrical valve is mounted on roller bearings 4, 41 and the obturating surface of the plug that faces the inlet is provided with a ring 10 of packing material held in by a disc 11 which completes the surface of the plug. Fluid-pressure acting on disc 11 causes the packing material to engage tightly around the inlet port. The plug and easing may be chromium plated.
Patent GB-1301826-A (GB)
IPC: B60T13/74
Filed: 1970-05-22
Abstract: 1301826 Tractor-trailer braking systems; electric control LINDE INTERNATIONAL AB 22 May 1970 [23 May 1969] 24875/70 Headings F2E and F2F The braking of a trailer 2 towed by a tractor 1 is controlled in dependence upon the loading on a coupling unit 3 by a pressure sensitive transmitter 9 and an amplifier which increases the braking pressue of trailer brakes 12 when a draw bar 4 extending through a sleeve 5 carried by the trailer moves into abutment with the transmitter 9; the braking system is connected into the brake light circuit 16 of the vehicle. The brakes may be actuated electrically or by fluid-pressure with the braking pressure controlled by electrically-operated valves coupled to the amplifier. In further modifications the transmitter is actuated when the coupling unit is subjected to a pull exceeding a certain value. The transmitter may consist of a rubber or elastic material, or a compressible container with carbon powder which changes resistance when compressed.
Patent GB-1434995-A (GB)
Title: Vibration damping
IPC: F16F15/02
Filed: 1973-05-24
Abstract: 1434995 Dampers MESSERSCHMITTBOLKOW-BLOHM GmbH 24 May 1973 [16 June 1972] 24969/73 Heading F2S An apparatus, such as a motor or compressor which when operated causes a component thereof to produce unwanted noise, comprises at least one non-resonant and non-frictional damper secured to the component by a large end, the damper reducing progressively to a small end free of the component. The damper may be coated, e.g. with a viscous damping material. The material of the part 1, Fig. 1, may have gas occlusions and/or mass parts included therein. The dampers may be coiled or re-entrant and may be torsional dampers as shown in Fig. 11.
Patent GB-186605-A (GB)
Title: Safety locking device for valves controlling pipe-lines
IPC: F16K17/00
Filed: 1922-09-15
Abstract: 186,605. Laguesse, E., and Winand, F. Sept. 29, 1921, [Convention date]. Addition to 186,067. Locking. - A safety locking-device for use on valves controlling pipe lines and of the kind described in the parent Specification which are arranged to lock the main valve closed in the event of an abnormal fall of pressure occurring in the outlet subsequent to the closing of the main valve. is actuated by the pipe-line pressure acting on a diaphragm. The diaphragm also actuates a supplementary valve to isolate the diaphragm chamber from the inlet when the outlet pressure is abnormally low. In the form shown, the plug of a main gas-cock has a slot to oo-operate with a locking-bolt 13 coupled by a hook 12 to a projection 11 on a diaphragm 9, a pull-rod 14 being similarly connected to a projection 10. The diaphragm chamber communicates with the outlet through a port 7 and with the inlet through a port 6 controlled by a valve 17 coupled to the diaphragm through a weighted lever 16. In a modification the axis of the locking-bolt is arranged at right-angles to that of the plug, and in a further modification the axis of the locking-bolt is arranged to one side of the axis of the pipe line. The lever 16 may be omitted. A modification of the float-actuated apparatus described in the parent Specification is described in which a supplementary valve is actuated by the fall of the float to seal the air vent to the inner chamber, or the vent may be sealed with a diaphragm.
Patent GB-234366-A (GB)
Title: Improvements in or relating to pulverising apparatus for solid fuel and other substances
IPC: B02C7/06
Filed: 1924-10-21
Abstract: 234,366. Loy, G. S. Oct. 21, 1924. Addition to 190,132. Impact pulverizers; disc and like mills.-In a modification of the pulverizing-apparatus claimed in the parent Specification, an expansion chamber is provided on a channel tangential to the pulverizing-chamber and connected by its upper part to the fan attached to the pulverizing or grinding member and by its lower part to the pulverizing-chamber so as to regulate the degree of fineness of the pulverized material; and two or more grinders or groups of grinders, preferably concentric, are provided, each group comprising a fixed grinder carried by the frame of the apparatus and a moving grinder carried bv the shaft. The expansion chamber 35, Fig. 2, is supported by a pipe 34 let into an opening 33 in the casing 7 and carborundum crown 9, and is connected by a pipe 36 to the duct 10 which is connected to the mouth of the fan. The large particles deposited in the chamber 35 pass by a pipe 38 to the feed duct 12 of the machine. A damper 37 in the pipe 36 allows the suction in the chamber 35 to be regulated. The central grinders 1, 3, Fig. 3, are of metal, and the stationary grinder 3 is adjustable by means of spring bolts 4. The movable grinder 1, comprises an annular disc with a rim 7<1>, Fig. 4, on one of its faces, the central part of the disc being divided into sectors each of which consists of a part 8 inclined to the axis and a part 9' forming a cavity for collecting flints or other hard bodies present in the coal to be pulverized. The grinder 1 is mounted upon the. shaft 2 by means of a plate 10<1>, having a crown 12<1> of abrasive material bolted to its periphery. The crown 12' and a similar crown 13 fixed by spring bolts 14 to the frame are bevelled upon their inner faces to form a channel 15. In a modification, the cavities for retaining the hard bodies are formed in the fixed grinder 3. As shown in Fig. 7, the outer group of grinders comprises a fixed grinder 1<1> of corundum or other hard abrasive material and a movable grinder 2' made of a less hard material such as steel and having cavities or perforations 4<1> to receive the flints &c. Or the perforations may be formed in the stationary grinder, or in both grinders. A grinder made of steel wires arranged parallel to the shaft may be used instead of the perforated member. In another arrangement, Fig. 10, fixed and moving moving grinders 21, 22 replace the fixed and moving arms described in the parent Specification, the moving grinder 22 being provided with studs 23.
Patent GB-406749-A (GB)
Title: Improvements in or relating to telephone transmitters or receivers for transmitting, reproducing or recording sound waves
IPC: H04R1/24
Filed: 1932-09-08
Abstract: 406,749. Loud - speakers. MIDGLEY, A. H., c/o Midgley, Harmer, Ltd., Dukes Road, Western Avenue, North Acton, London. Sept. 8, 1932, No. 25085. [Class 40 (iv).] A sound reproducing or a sound recording or transmitting device comprises a flat and preferably stretched diaphragm provided with two or more concentric moving coils which are immersed in annular gaps of a common magnetic field system, each coil being arranged to generate, or to be sensitive to, different modes of vibration of the diaphragm according to the frequency impressed thereon. The Figure shows a construction of loud-speaker comprising a flat diaphragm c driven by concentric coils a, b located in the gaps of a common magnet system d, e, f, the centres of the coils coinciding with the centre of the diaphragm as shown or being displaced therefrom by any distance up to about 1/5 of the radius of the diaphragm. The coil a is preferably wound with aluminium wire and the coil b with copper wire, the two coils being connected in series and an inductance is connected across coil a and a capacity across coil b so that the high frequencies are diverted through coil a but do not traverse coil b. The diaphragm c, which may be in the form of a disc or have a square or oblong outline, is mounted as described in Specification 332,272, [Class 40 (iv)], by stretching it over or fixing its periphery to a ring or rings g movably supported on three studs h. The holes in the rings through which the studs pass are preferably bushed with leather, felt &c. i while felt rings or stops l may be provided on the studs to limit the movement of the rings thereon. The arrangement is such that at low frequencies the diaphragm and inertia weight will vibrate as a whole, but at the higher frequencies only the centre of the diaphragm will vibrate. The magnet system may be provided with vent holes as shown.
Patent GB-1413864-A (GB)
Title: Remote dc-xupply system
IPC: H04B3/44
Filed: 1973-05-29
Abstract: 1413864 Repeater power supplies; transistor amplifiers PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 29 May 1973 [1 June 1972] 25358/73 Headings H4R and H3T In a multi-stage transistor repeater amplifier which is fed with power over the communication line the terminating resistors provided at the input and output of the amplifier are formed by the transistor electrode resistors. Fig. 2, shows the conventional amplifier with the resistors 12 and 13 terminating the incoming and outgoing lines in their characteristic impedance and providing feeds for the D.C. supply which is fed over the communication conductors in parallel. Fig. 3 shows the amplifier according to the invention in which the terminating resistors are formed by the electrode resistors 33 to 36<1> and 38 to 40<1>, i.e. the resistors 33, 33<1> form a common source resistor for the push pull fet's T1, T1<1>, the resistors 39, 39<1> the drain resistor for T1 and resistors 40, 40<1> the drain resistor for T1<1>, &c. The arrangement by dispensing with separate terminating resistors reduces the supply voltage drop across the repeater allowing a greater number of repeaters to be connected in series for supply from a source without increasing the cable supply voltage.
Patent GB-658197-A (GB)
Title: Improvements in fluid compositions
IPC: C08L27/06
Filed: 1948-09-29
Abstract: A thixiotropic film-forming solution comprises p  acetone-insoluble polyvinyl chloride in a mixture of methyl ethyl ketone and an aliphatic ketone containing 5 to 7 carbon atoms, which may be methyl isobutyl ketone or diethyl ketone.  A plasticizer for the polyvinyl chloride, preferably di - (methyl - cyclohexyl) - phthalate, may be incorporated.  Other plasticizers which may be present are organic phosphates and phthalates, dibutyl or dioctyl sebacate, dibutyl adipate, tributyl citrate, tetrahydrofuryl oleate and methyl cyclohexanol oxalate. The solution is preferably prepared by forming the polyvinyl chloride and plasticizer, if used, into a smooth dispersion with the ketone containing 5 to 7 carbon atoms and then dissolving the dispersion in the methyl ethyl ketone.  The solutions may be diluted with volatile liquids such as acetone, methyl acetate, ethyl acetate, propyl acetate, isopropyl acetate, benzene, toluene, methylene chloride, ethylene chloride, chloroform, trichloroethylene and monochlorbenzene.  Polyvinyl chloride may be obtained as a coating or self-supporting film by evaporating the volatile liquids from the solutions.  Specifications 612,227 and 658,180 are referred to.
Patent GB-746505-A (GB)
Title: Improvements relating to the formation of hollow articles from thermoplastic materials
IPC: B29C49/06
Filed: 1953-09-15
Abstract: 746,505. Making hollow articles from therm oplastic materials. PEARSON, J. (Dubiner, S.). Sept. 15, 1953, No. 25420/53. Class 87(2) Relates to a process for making bottles &c. by inection-moulding a slug 26, Fig. 4, on one core 17 concurrently with the blowing of a previously injection-moulded slug 26a on another core 18. It takes longer to blow a slug than to mould a slug, and if the injection and blowing started together the slug 26 would be moulded before the slug 26a was blown and cooled. It is undesirable to keep the slug in its mould for a long time, and according to the invention the injection lags behind the beginning of the blowing and ends at substantially the same time as the blowing and cooling. Fig. 4 illustrates an injection and blowing cycle of the upper half of the machine shown in Fig. 1. At stage B blowing of slug 26a has started but injection of slug 26 has not started, being delayed until stage C and completed at stage D when also the hlnwing and cooling (in mould 14) are completed. The blowing and cooling may take 17 econds and the injection. starting 8 seconds after blowing starts, may take 9 seconds. At stage E the mould platens 10. 10a open and the blown bottle is ejected, at F a carriage 23 that supports the cores 17, 18 moves to the left to position slug 26 in another blowing mould 13, and at E the platens close and another cycle commences. As shown in Fig. 1 there are two injection moulds 11, 12 and four blowing moulds 13, 14, 15, 16. When the platens open and the bottles 27 have been blown off their cores 18, 19, carriages 23, 24 move left and right respectively to position slug-carrying cores 17, 20 in moulds 13, 16. As the carriages move they break off the sprues from the slug. A spring-advanced, lever-retracted, conical-headed sprue-extractor 80, Fig. 5, is provided on the movable platen 10a. The cores 17...20 are supplied with compressed gas by conduits 66...69. The cores terminate in valves 21. The cores may be cooled in the injection moulds by compressed gas prior to injection, or cool water channels may be run around the bases of the cores. The cores may be lubricated by metal stearate or silicone introduced into the gas conduits. There may be six blowing moulds and four injection moulds, (Fig. 2, not shown) or, Fig. 3, three blowing moulds, three injection moulds and six cores, the cores being mounted on a shaft 58 that is slidable axially (towards the observer) to detach the slugs and bottles from their moulds and then rotated through 60 degrees to align the slugs with the blowing mould and the empty cores with the injection moulds.
Patent GB-1388955-A (GB)
Title: Process for the production of di- and trichloroisocyaniric acid
IPC: C07D251/36
Filed: 1972-05-31
Abstract: 1388955 Di- and tri-chloroisocyanuric acid FMC CORP 31 May 1972 [1 June 1971] 25470/72 Heading C2C Di- and/or tri-chloroisocyanuric acid is produced in a two-stage process consisting of (a) reacting cyanuric acid, an aqueous alkali in a molar ratio to the cyanuric acid corresponding to the number of chlorine atoms to be attached to the cyanuric acid, and chlorine in a primary reaction zone in which the temperature is between 5‹ and 40‹ C. and the pH is at least 11À8; (b) reacting the reaction mixture from the primary reaction zone with additional chlorine in a secondary reaction zone in which the pH is maintained between 1À5 and 3À5 and the temperature between 5‹ and 20‹ C.; and (c) withdrawing the di- and/or tri-chloroisocyanuric acid product from the secondary reaction zone.