baber/WOPTO huggingface dataset:
Patent GB-1260701-A (GB)
Title: Combined split and segmental piston rings
IPC: F16J9/08
Filed: 1969-04-17
Abstract: 1,260,701. Piston rings. AIR PRODUCTS & CHEMICALS Inc. 17 April, 1969 [18 April, 1968], No. 19627/69. Heading F2T.  A piston ring assembly for a pump or a compression or expansion chamber in a cryogenic refrigeration apparatus comprises a first, split ring 24 having end portions forming a sealed interface and a second ring 26 consisting of one or more hard segmental rings 42, 44 held by a carrier ring 38 composed of elastomeric expandable material. In operation, fluid pressure passes through clearances or passageways to the back of the first and second rings to expand them into engagement. The split ring 24 may be formed with an arcuate interface 28 at the split and may be made of P.T.F.E., metal, plastics, leather or rubber and filled or impregnated with bronze powder, graphite, carbon or molybdenum disulphide. The segmental rings 42, 44 of the second ring may be made of pyrolytic graphite, tungsten carbide or impregnated carbon and the elastomeric expandable carrier ring 38 may be made of P.T.F.E. or synthetic rubber and either impregnated with molybdenum disulphide or filled with carbon for lubricating the cylinder wall.
Patent GB-835946-A (GB)
Title: Process for the production of light voluminous silicate
IPC: C09C1/40
Filed: 1957-06-21
Abstract: Light, voluminous silicates, suitable for use as fillers in natural and synthetic rubbers or other elastomers, for loading paper or as catalyst carriers, are prepared by reacting a natural alkali metal aluminium silicate in aqueous suspension with vigorous agitation at elevated temperature and pressure with 0.5-1.3 mols. of an alkaline earth metal hydroxide per mol. of the silica present in the silicate. Specified silicates are soda and potash feldspar, micas, leucites and lepidolite, petalite, pollucite and spodumene; the preferred alkaline earth metal hydroxide is slaked lime.  Suitable reaction conditions are temperatures of 150-280 DEG  C., pressures of 18-19 atmos. and a water: solids ratio of at least 5 : 1.ALSO:Light voluminous silicates suitable for use as fillers in rubber and rubber-like materials are produced by reacting a natural alkali metal aluminium silicate in aqueous suspension at elevated temperature and pressure with an alkaline earth metal hydroxide (see Group III).  When used in natural rubber (e.g. 80 parts of silicate product to 100 parts of rubber), the vulcanized product has increased notch toughness.
Patent GB-238870-A (GB)
Title: Improvements relating to diaphragms for primary or secondary cells, electrolytic cells. filters and the like
IPC: H01M50/414
Filed: 1925-08-06
Abstract: 238,870. Beckmann, H. Aug. 22, 1924, [Convention date]. Filtering-media.-Diaphragms for filters, &c. are made of spongy rubber produced by coagulating latex or suitably treating rubber dispersions to form a jelly-like mass which is then vulcanized to produce a rubber having pores of microscopic dimensions. The spongy rubber is made by mixing. latex or other rubber dispersions with sulphur and adding coagulating substances, such as solutions of magnesium or barium salts. The jelly-like mass produced is vulcanized in hot water or vapour.
Patent GB-320349-A (GB)
Title: Improvements in cocks or valves
IPC: F16K27/02
Filed: 1928-07-09
Abstract: 320,349. Stewart & Co., Ltd., J. F., and Thomason, W. July 9, 1928. Lift - valves; casings; seats.-In cocks or valves of the kind wherein a tubular member within the body or casing forms the valve seating and is threaded to receive the valve spindle, the inner end 1<b> of the tubular member is screwed into the thickened diaphragm 2, making a tight joint, and the cover 5 is formed with an inwardly projecting hollow boss 5a threaded to engage the tubular member or a part, such as a packing gland 4, carried thereby, an independently adjustable stuffing box-in the form shown, the gland 4-being provided to prevent leakage along the screw thread of the valve spindle from passing through the cover. The tubular member is in two parts connected by a screw thread 1<c>, the lower part being of skeleton form and carrying the seating 1<a>. Constructions are described wherein the cover 5 is formed with an internally threaded hollow boss engaging an external thread on the tubular member 1, the stuffing box being located either in the cover 5 or in the end of the tubular member. Specifications 201,769 and 241,334 are referred to.
Patent GB-257910-A (GB)
Title: Improvements in the manufacture of liquid and other hydrocarbons and derivatives thereof by the destructive hydrogeneration of coal, tars and the like
IPC: C10G1/06
Filed: 1926-08-12
Abstract: 257,910. I. G. Farbenindustrie Akt.- Ges. Sept. 2, 1925, [Convention date]. Grant of Patent refused. Hydrogenation, destructive.-In the production of liquid hydrocarbons from coals, tars, mineral oils, resins, asphalts, and other carbonaceous materials by treatment at high temperatures and pressures over 50 atmospheres with hydrogen or gases containing hydrogen, th,e formation of coke is prevented by using streaming gases and starting with wet coal &c. or adding water during the hydrogenation. In an example. brown coal producer tar containing 40-50 per cent of water is pumped into a high pressure reaction vessel in which it is vaporized or atomized and intimately mixed with hydrogen, and then at 200 atmospheres and 450-500‹ C. is passed over a catalyst containing molybdenum. The issuing vapours are condensed, and benzine and other petroleum hydrocarbons separated from the water. Specifications 182,852 and 247,582 are referred to.
Patent GB-241338-A (GB)
Title: Improved water cooled meat safes for keeping food cool in hot weather
IPC: F25D7/00
Filed: 1924-08-23
Abstract: 241,338. Bingley, F., and Thorogoods, Ltd. Aug. 23, 1924. Refrigerators, domestic and like.-A food safe of the kind have perforated walls enclosing sheets of fabric moistened by water flowing by capillary action from an upper reservoir to a lower collecting tray is constructed of readily separable parts, preferably of metal, the perforated walls being removable without disassembly of the whole safe, so as to give access to the fabric sheets for removal and cleaning. The safe preferably comprises tubular metal corner uprights 1 - - 4, a top metal reservoir 5 and a bottom tray 11, and guides 23 on the uprights for the reception of the perforated walls. The bottom tray 11 is provided with fixed sleeves 31, Figs. 6 and 7, for the reception of the corner uprights, which are fastened by screws 32, additional security being obtained by brackets 33 attached to the tray and screwed to the uprights. Stretcher members 35 arranged between the sleeves 31 serve to support the floor plate 9 of the safe. The top reservoir 5 is provided with brackets 6 secured to the uprights by screws 30, and has an inturned upper flange 7 fitted with studs 8 to which the fabric sheets may be fastened. The perforated walls are preferably reinforced by wire 16 at the edges, and the door member is provided with a cross stiffener 17 and a plate 18 for a catch 19. The guides 23 for the side and back perforated walls are formed of folded sheet-metal plates attached to the tubular uprights. The top 27 is hinged on pins 44 screwed into the uprights. Shelves 14 have flanges engaging over hooks on the corner uprights. The fabric for the sides is preferably canvas or hessian, having holes or eyelets engaging over the studs 8 and tapes at the lower end tied around hooks 37, Fig. 7. Strips of flannel 22 dipping into the reservoir 5 may be mounted over the top edges of the fabric. The tray 11 may be drained through a plugged hole in the bottom, and has a small overflow opening 42 at a level above the stretcher members so as to maintain a liquid seal in the tray to prevent entrance of dust and vermin. The front fabric sheet may be hung on a rail 38 and fastened to hooks 39 on the door member.
Patent GB-347061-A (GB)
Title: Improvements relating to concrete floors
IPC: E04C3/20
Filed: 1930-07-01
Abstract: 347,061. Concrete floors. HOFFMANN, E., 149, Erlachgasse, Vienna. July 1, 1930, No. 19974. Convention date, July 4, 1929. [Class 20 (iv).] The joists 1 are strutted at the ends by inclined metal, concrete, or other plates 3, and concrete is filled in above the plates and reinforced to provide additional strength at the supports. A rib 9 projecting downwardly or upwardly bears against the centring 5, and may have lugs 2 or projecting bars to hook over the joists.
Patent GB-1424579-A (GB)
Title: Method of procuing coffee aroma product
IPC: A23L27/28
Filed: 1973-04-26
Abstract: 1424579 Coffee aroma preparations GENERAL FOODS CORP 26 April 1973 [12 May 1972] 20001/73 Heading A2B Grinder gas is collected and condensed during the grinding of roasted coffee, and combined with a liquid glyceride (e.g. coffee, oil, coconut oil, corn seed oil or triacetin), and water is removed from the mixture by freeze drying, centrifuging, molecular filtration or drying agents to stabilise the aromatic substances. The water content of the glyceride is preferably reduced to below 1.0% by wt. The aromatised glyceride may be added to soluble coffee solids by spraying or by freezing and comminuting it and then adding it to the coffee solids. Alternatively it may be added to a solution of the coffee solids, which is then dried, the solution being in the form of a slush. The aromatised glyceride may also be added to solutions containing water soluble dextrins.
Patent GB-933414-A (GB)
Title: Improvements relating to the production of steel
Inventor: DENNIS WILLIAM ERIC
IPC: C21C5/32
Filed: 1961-06-02
Abstract: In a method of producing steel in a rotary refining vessel into which oxygen is injected through a lance, iron oxide is fed into the bath through the lance by means of a mechanical feeder, the operation of which is controlled in accordance with the temperature of the bath. The mechanical feeder may be a vibrating device driven by an electric motor, the speed of which is regulated by the signal from a pyrometer immersed in the bath.  In a suitable control apparatus a reference voltage corresponding to the desired bath temperature is opposed to a voltage corresponding to the pyrometer signal, and the difference between them amplified to control the rate of iron oxide input.  The reference voltage is preferably governed by a controller programmed in accordance with the successive stages of the refining process; the controller may simultaneously monitor the rate of oxygen input.
Patent GB-821418-A (GB)
Title: Improvements in and relating to electrical capacitors
Inventor: BURCHELL CHARLES KASPER
IPC: H01G13/02
Filed: 1956-06-28
Abstract: 821,418. Winding capacitors. TELEPHONE MANUFACTURING CO. Ltd. April 11, 1957 [June 28, 1956], No. 20034/56. Class 100(1) [Also in Group XXXVI] A wound type capacitor comprises a. capacitor element of strip form wound from a point between the ends so that the element is wound in doubled form over a substantial part of its length. The capacitance between turns is thus avoided and the value of the capacitor may therefore be determined before winding. A dilectric strip 10 for example of polystyrene, having separate or coated electrodes 11, 12 is associated with two insulating strips. 15 and 16 of equal or slightly greater width that the di-electric strip. The composite strip is then doubled and placed on a split. mandrel 17 and wound. When coated electrodes are used the whole of each surfaceof the di-electric may be coated and a strip at one edge of one side and the other edge of the other side may be burnt away. In addition the ends can be cut with a knife or guillotine with a voltage on it which burns off the metallizings at the end of the strip so that the desired capacitance is produced before winding. Specifications 483,029, 485,965, 551.757 and 593,468 [all in Group II] are referred to. Reference has been directed by the Comptroller to Specification 791,627.
Patent GB-904173-A (GB)
Title: Improvements in or relating to alarm devices
IPC: G10K1/074
Filed: 1960-06-08
Abstract: 904,173. Bells; fire alarms. PRATT, E. C., and PRATT, V. E. June 8, 1960 [June 9, 1959], No. 20049/60. Drawings to Specification. Classes 13 and 118. A bell has a rotary hammer driven by a spring motor of the type in which the spring is wound from a storage drum on to a drive drum and winds itself back on to the storage drum when released. Release is effected by a heat-sensitive latch which yields at a predetermined temperature. Increase in the thickness of the spring on the storage drum causes movement of an indicator to give warning of the need to re-wind the motor. The whole motor, apart from the hammer, the indicator, and a winding knob, is enclosed in a sealed housing inside the bell. The hammer has two loosely mounted heads which strike a peg projecting from the inner surface of the bell.
Patent GB-1441605-A (GB)
Title: Vacuum cleaner
IPC: A47L5/36
Filed: 1974-05-07
Abstract: 1441605 Suction cleaners SUNBEAM CORP 7 May 1974 [14 May 1973] 20050/74 Heading A4F [Also in Division F2]  A wheeled suction cleaner has means to lock a wheel thereof against rotation in one direction to hold the cleaner on an incline whilst permitting rotation in the other direction, and means to disengage the locking means so that the wheel is freely rotatable in either direction. The illustrated cleaner has a housing 26 supported by wheels 42 and a swivel caster 41. Pawls 50, 52 are pressed by a spring 68 to engage between radial walls 42c of the wheels 42, the pawl ends 50a, 52a being bevelled so that they prevent wheel rotation in one direction and not the other. The pawls 50, 52 are disengaged from the wheels by drawing together lugs 60, 62, thereon movable in slots 76, 78 in a sleeve 54, and engaging them in slot portions extending transversely of the sleeve to hold the spring 68 compressed. The housing 26 has a tool holding and handle assembly 32, a hose holding wall section 33, and a storage compartment 24 for an electric cable reel.
Patent GB-1270929-A (GB)
Title: Level control arrangements for fuel tanks
Inventor: BOTTOMS HARRY SIMISTER
IPC: F16K31/20
Filed: 1968-04-29
Abstract: 1,270,929. Fluid-pressure servomotor systems. JOSEPH LUCAS (INDUSTRIES) Ltd. June 2, 1969 [April 29, 1968], No. 20132/68. Heading G3P. A fuel tank level-control arrangement, comprises a main valve 10 the state of which is determined by a float-operated pilot valve assembly, (25), Fig. 2 (not shown). The pilot valve assembly includes a spring-biased valve member (24) which is capable of movement independantly of the assembly. With the pilot valve float in a lowered position, the pilot valve assembly is raised from a seat (23), which is formed about the periphery of a duct (20) connectible to port 19, and so fuel present in chamber 18, as well as that entering chamber 18 from inlet line 11 via a port 17 formed in the main valve member 14, is allowed to escape to the tank, the pressure at line 11 thus being able to overcome the bias of spring 9 and to maintain closure member 14 unseated so allowing communication between inlet 11 and the outlet 12. As the float gradually rises, so the outflow from port 19, and hence that from chamber 18, is increasingly restricted and the separation between closure member 14 and its seat 13 is gradually decreased. The closure member 14 is slidable upon a fixed sleeve 15 and the spring-biasing the member extends between it and an internal projection on the sleeve.
Patent GB-472349-A (GB)
Title: Improvements in elastic yarn and method of making same
IPC: B29D99/00
Filed: 1936-07-21
Abstract: <PICT:0472349/IV/1> An elastic yarn is formed by extruding a solution of cellulose or one of its derivatives through small apertures to form a multiplicity of fine filaments, and delivering a core of vulcanized rubber and the extruded filaments to a common guiding point in an operation continuous with the extrusion and then spinning the core and freshly-formed filaments together so as to wind the filaments helically about the core as a cover; the core may be tensioned prior to delivery to the common guiding point and a second covering may be helically wound on the first covering in the reverse direction thereof.  As shown, a twisted rubber core 19 is delivered to the common guide eye 18 to which the filaments 14 are also delivered from a spinneret 12, the core and filaments passing together over a roller 16 to a ring spinning device 24 where they are spun together in a direction reverse to that of the twist in the core, sufficient twist being left in the core to balance the action of the spirally wound filaments as described in Specification 461,931, [Group IX].  In a modification the core is delivered through the centre of a rotating spinneret.
Patent GB-1124584-A (GB)
Title: Improvements in or relating to radiographic examinations using neutrons
Inventor: BARTON JOHN PENROSE
IPC: G01N23/09
Filed: 1965-05-13
Abstract: 1,124,584. Detecting neutrons. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 5 May, 1966 [13 May, 1965], No. 20201/65. Heading G6P. In a system for the examination of an iron object by means of a neutron beam, the neutron energy of the beam is reduced to less than 0À005 electron volts. The neutron source is a nuclear reactor from which the beam passes first into a beryllium filter to remove, by scattering, the high energy neutrons and secondly into a bismuth filter to remove the gamma rays. The detector is a lithium-6 zinc sulphide scintillator and the beryllium filter may be cooled with liquid nitrogen.
Patent GB-1246594-A (GB)
Title: Evaporation control
Inventor: WALKERDINE IAN DOUGLAS
IPC: C23C14/24
Filed: 1970-04-28
Abstract: 1,246,594. Automatic control of evaporation. STANDARD TELEPHONES & CABLES Ltd. April 28, 1970, No. 20246/70. Heading G3R. The rate of feed of metal to an evaporation crucible heated by the passage of electric current is automatically controlled in dependence on the voltage across the crucible. In Fig. 2, a crucible 12 containing aluminium is heated for vapour deposition purposes by current from a source 9. A quartz crystal (not shown), located in the evaporating chamber so that a film of increasing thickness is deposited thereon, is arranged in an oscillator circuit 10 the frequency of which so controls the current supply to the crucible that rate of deposition is maintained at a desired value. A predetermined time after starting, a time switch 16 operates a relay 17 to close contacts 18 so that a motor 14 is operated to feed aluminium wire to the crucible. The speed of motor 14 varies in dependence on the voltage across the crucible and thus prevents erratic evaporation due to under- or over-filling of the crucible.
Patent GB-320403-A (GB)
Title: Improvements in valves
IPC: F16K1/14
Filed: 1928-07-12
Abstract: 320,403. Woodcock, E., and Henshilwood, A. B. July 12, 1928. Lift - valves with spherical closure members. The ball a, which is of hardened rustless steel, is engaged by an annular member f loosely carried by a flange g formed on the end of the usual screw-down spindle B, the ball being in direct contact with the recessed end of the spindle and being thereby rotated to bring different parts of its surface into engagement with the seating ring b.
Patent GB-499331-A (GB)
Title: Improvements in or relating to electro-magnetically operated mechanism arranged for control by perforated records
Filed: 1937-07-22
Abstract: 499,331. Statistical machines. BRITISH TABULATING MACHINE CO., Ltd. July 22, 1937, No. 20364. Convention date, July 23, 1936. [Class 106 (i)] In electromagnetically operated mechanism controlled by a moving perforated record a part 54 is operable by a strong electromagnet 51 and a weak electromagnet 31 is energized momentarily from the hole-reading and closes contacts 49 to energize the strong electromagnet, these contacts being then opened by the said part 54 when the latter is operated. The invention is applied to a card-sorting machine and each strong electromagnet causes the part 54 to actuate a units counter. The card is read according to the twelve hole-positions in a selected column and there is a units counter for each hole-position. When a hole is read by the electric reading brush, the corresponding weak magnet 31 is energized, Fig. 3, and attracts its armature 37 to unlatch a lug 50 on a member 72, 47 pivoted at 45 so that a spring 48 pulls the arm 47 to the right to close contacts 49. These energize the strong magnet 51 which attracts its armature 54 against spring 55. A spring blade 67 under the armature depresses a vertically slidable bar 70 against a spring 80 so that its lower end 71 rocks the parts 72, 47 counterclockwise to open the contacts 49. Arm 72 is relatched by armature 37. Pivoted at 61 and 62 to the armature 54 are pawls 59, 60 coacting with a ratchet 58 on the units wheel 36 of the corresponding counter. As the armature is attracted downwards, pawl 59 rotates the ratchet a half-step and pawl 60 comes below the next tooth. When magnet 51 is de-energized pawl 60 rotates the ratchet the other half-step. The anchorage of the upper end 82 of spring 80 is adjustable so that the time at which the blade 67 reopens the contacts 49 is variable. To prevent repeated actuation of the units wheel 36 if the card stops with a brush resting in a hole, contacts 94, 95 are provided. Contact 94 is on the armature 37 and contacts 95 is on the arm 72. These contacts are connected in parallel with contacts 49 and are normally open. When the armature 37 is attracted upwards, arm 72 through its lug 50 is unlatched before contact 94 meets contact 95. The latter contact is raised as parts 72, 47 rock to close contacts 49 and contacts 94, 95 remain open. If the reading brush is resting in a card hole, as magnet 51 attracts its armature 54 and blade 67 depresses rod 70 to open contacts 49, contact 95 is depressed to meet contact 94, which is still raised, before contacts 49 open. Hence magnet 51 is maintained energized and pawl 60 cannot rise to move its ratchet the second half-step until, by restarting the apparatus, the card hole is moved away from the reading brush.
Patent GB-136246-A (GB)
Title: Improvements in or relating to Mechanical Grate Furnaces.
Inventor: GLOPPER FRANCOIS TONIS DE
IPC: F23H11/10
Filed: 1918-12-09
Abstract: 136,246. Stopper, F. T. de. Dec. 9, 1918. Grates; air, supplying; air-supply, regulating. -Beneath the front portion of a chain grate is arranged an air chamber 8, Fig. 1, to which air under pressure is supplied through a valve-controlled pipe 12, Fig. 2, at the side of the chamber. The air is divided and distributed bv means of baffle-plates 19, 14. The plates 14 may be adjustable and inclined as shown in Fig. 2. The bottom of the chamber 8 is provided with a slide for the removal of ashes. The air supplied to the grate at the rear part of the chamber 8 is regulated by valves 13. The size of the chamber 8 may be varied by making its rear wall 18 adjustable and adapted to be turned on a hinge. The air-supply to the rear portion of the grate is regulated by valves 17.
Patent GB-1344529-A (GB)
Title: Seals such as are used for rolling bearings
IPC: F16J15/32
Filed: 1971-04-19
Abstract: 1344529 Rotary seals SKF KUGELLAGERFABRIKEN GmbH 19 April 1971 [28 Jan 1970] 20499/71 Heading F2B A seal for a rolling bearing comprises a seal disc 1 which bears slidingly in the axial direction on both radially-extending flanges 7 of a U- section ring 3. As shown, a seal disc 1 of plastics material is held by a retaining ring 6 in the outer race 5 and the free inner rim bears on both flanges 7 of the ring 3 which is carried by a shaft 2.
Patent GB-1059927-A (GB)
Title: Dry cleaning and degreasing composition and process
IPC: D06L1/04
Filed: 1964-05-19
Abstract: Materials or articles such as textile fibres metals or insulating materials, are dry-cleaned or degreased by the application of a liquid composition comprising hexafluorodichlorobutene. The hexafluorodichlorobutene may be used in association with a surface-active agent and/or a cleaning intensifier and/or a halogenated aliphatic hydrocarbon whose boiling-point differs from that of the hexafluorodichlorobutene by not more than 30 DEG  C.  The latter includes trans-dichloroethylene, trichloroethylene and trichlorofluoroethanes.