baber/WOPTO huggingface dataset:
Patent GB-2465490-A (GB)
Title: Catalyst housing
Inventor: ROE THOMAS
IPC: F01N3/28
Filed: 2009-11-23
Abstract: A catalyst housing comprising a gas inlet, a gas outlet and a housing body between the inlet and outlet that removably contains a first catalyst and has an access door for access to the first catalyst. Preferably the first catalyst is circular in cross-section, there is a sensor port and sensor located at the inlet and outlet and there may be a dispersion device comprising a perforated plate in the housing. The access door may be attached to a flange surface of the housing body, where there are slots on both the door and flange that align when the two are properly mated, they are then bolted together. There may also be a gasket seal between the door and flange and a sleeve on the first catalyst comprising upstream and downstream pressure rings. The housing may also contain a second catalyst, a spacer, a filter element, insulation or a silencer. Preferably there is a retention bolt that abuts one of the elements contained in the housing and applies force to it when tightened to promote sealing.
Patent GB-2475719-A (GB)
Title: Preloaded propeller blade assembly
Inventor: TOWKAN MICHAEL FEDOR
IPC: B23P15/04
Filed: 2009-11-27
Abstract: A propeller blade assembly 1 comprises a plurality of propeller blades 10 each connected to a hub 2 via at least one bearing assembly 3, 4. Each of the blades 10 and the bearing assemblies 3, 4 is preloaded, wherein the preload is applied over a preload path which includes a blade root portion 11 of each blade 10 and the bearing assemblies 3, 4. A spring 6 is provided in the preload path. In the event of wear of the components of the propeller blade assembly, the spring 6 maintains the preload force. A method of applying the preload to the propeller blade assembly 1 is also disclosed.
Patent GB-348803-A (GB)
Title: Improvements in or relating to the destructive hydrogenation of high-boiling hydrocarbons with the formation therefrom of hydrocarbons of lower boiling point
Filed: 1930-03-29
Abstract: In the destructive hydrogenation of high-boiling hydrocarbons rich in open-chain compounds, the reaction temperature is stabilized by first mixing these materials with high-boiling hydrocarbons rich in closed-chain compounds.  The difficulties caused by the sudden change from an endothermic to an exothermic reaction which occurs in the hydrogenation of open-chain compounds alone are thereby obviated.  A suitable catalyst is molybdenum with a promoter of silicon, boron, lithium, calcium, or phosphorus, and with or without an addition of hydrogen sulphide to the hydrogenating gas.  The proportion of open-chain compounds in a mixture decreases during destructive hydrogenation; a product of the desired composition can be obtained by choice of suitable initial materials.  Specification 296,984, [Class 32, Distilling &c.], is referred to.
Patent GB-493460-A (GB)
Title: Improvements relating to pipe joints
IPC: F16L21/04
Filed: 1937-04-08
Abstract: 493,460. Pipe joints. STANTON IRONWORKS CO., Ltd., and LAZAREFF, G. April.8, 1937, No. 10068. [Class 99 (i)] In a spigot-andsocket joint in which a packing-ring is compressed around the spigot by screws e bearing against a compression ring d the screws are carried by an internal flange a<2> of the socket, and the ring d is divided. Specifications 374,493, 404,955, 420,077, and 433,137 are referred to.
Patent GB-308485-A (GB)
Title: Method of and means for indicating intention of reversing of motor road vehicles
IPC: B60Q1/22
Filed: 1928-04-04
Abstract: 308,485. Park, W.. M., and Park, Ward, & Co., Ltd. April 4, 1928. Road-traffic signals on vehicles. - A warning lamp to indicate reversing of a car is automatically lighted by the gear lever 22 engaging, in its reverse position 23, a spring-pressed slide 7 carrying a plunger 15 adapted to bridge two spring tongue contacts 8, 9 in the signal lamp circuit.
Patent GB-570110-A (GB)
Title: Improvements in telescopic suspension applied to front wheels of motor cycles
IPC: B62K25/08
Filed: 1943-06-24
Abstract: 570,110. Spring forks for motor-cycles. WHITEHOUSE, A. W. June 24, 1943, No. 10171. [Class 136 (iii)] [Also in Group XXXII] Front wheel spring suspension means for a motor cycle comprise a pair of upper tubes 7 within which slide a pair of lower tubes 8 under spring control, the upper tubes 7 being secured together by stays 17, 18 which pass across in front of the steering-head 19 and are provided with arms 14a, 11, clamped to laterallyextending members 16, 12 of the steering spindle 13 above and below the steering-head. The upper arms 14a are adjustable on the tops of the tubes 7 so that the distance between the two sets of arms 14a, 11 may be varied to suit existing members 16, 12 on the cycle. In the construction shown the lower tubes 8 are provided with sockets or lugs 9a on which the front wheel spindle is mounted. The front mudguard 44 is pivoted to a rod 43 sliding in a tube 45 extending between the stays 17, 18, and is further supported by rods 41 fixed to the lugs 9a. Outer telescopic casing tubes 5, 6 are secured respectively to the tubes 7, 8. Shock absorbers. The load is transmitted from the upper tube 7 to the lower tube 8 by a strong spring 24 compressed between the head 20 of tube 7 and a flange 23 on the tube 8. A bush 25 is a push fit in the tube 7 and forms a lower bearing between the tubes 7, 8. A flange 26 on the bush 25 is a sliding fit in the casing 6 and is provided with packing 26a to form an oil seal between the tube 8 and the casing 6. A tube 27 is screwed to the head 20 of tube 7 and passes freely through the flange 23 on tube 8, its lower end having a bush 29 on which rests a rebound spring 30 adapted to act on a valve 31 which can close the passage between the tube 27 and flange 23. A spring 33 rests on the lower end of tube 8 and is normally free at its upper end as shown, but comes into action to assist the main spring 24 in the case of severe shocks. A series of holes 36 increasing in diameter upwardly are formed in the tube 8 to put its lower end in communication with the space 35. A hole 37 in the upper end of tube 8 communicates with the space 34 above the bush 25, and holes are formed in the inner tube 27 near the top. Oil is supplied through a filling plug 40 at the top of an oil container tube 39 and fills the lower end of the tube 8 and the space 35 up to the packing 26a. When a load compresses the strut.7, 8 the tube 7 is depressed and forces oil from the space 35 into the tube 8, through the hole 37 into the space 34, and also up the tube 27 and through the holes thus lubricating the various parts. On the rebound the' tubes 7, 27 and the spring 30 all rise. If the recoil goes beyond the normal position the spring 30 closes the valve 31 so that oil is trapped in the upper part of the tube 8 and can leave it only through small holes 42 leading to the space 34. The oil in this space returns through hole 37 into tube 8 and through holes 36 to space 35.
Patent GB-527157-A (GB)
Title: Improvements relating to cartridge belts for use in machine guns
IPC: F42B39/08
Filed: 1939-04-01
Abstract: 527,157. Cartridge belts for machine guns. BRITISH PENS, Ltd., WRIGHT, N., and POWELL, T. R. April 1, 1939, No. 10213. [Class 92 (ii)] Relates to disintegrating metallink cartridge belts in which the cartridges themselves form the hinge pins and of the kind in which the cartridge loops b, d are formed by curling the limbs of a metal blank. According to the invention, the ends of the loop d are closed and fastened by a dovetail joint f. The ends of the loops b may also be fastened by similar means.
Patent GB-436445-A (GB)
Title: An improved process for the treatment of tobacco
IPC: A24B15/28
Filed: 1934-04-04
Abstract: Tobacco is immunized from attack by mould by treatment with water which has been activated by an oligodynamically active substance. Ionized or colloidal solutions or suspensions of such metals as copper and silver may be used.  Specification 371,321 is referred to.
Patent GB-980323-A (GB)
Title: Improvements in or relating to flowmeters
Inventor: POWELL JOHN WILLIAM
IPC: G01F1/10
Filed: 1961-03-21
Abstract: 980,323. Rotary meters. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. March 21, 1962 [March 21, 1961], No. 10245/61. Heading F1F. [Also in Division G4] An axial-flow meter for example, for dustladen gases, comprises a rotor 9 with blades 12, mounted through gas bearings 7 and 8 on a spindle 5 screwed into a nose cone 3 and tail piece 4. Gas for the bearings passes through a passage 6a bores 14 and 5a, and through annular rows of holes 13 to the bearing. The diameter of the tail piece close to the rotor is slightly less than that of the rotor to facilitate escape of the gas. The rotational speed, and the number of rotations of the rotor are detected by magnetic or capacitive means (see Division G4), which may be adapted to compensate for the flow of gas from the upstream bearing 8 past the blades.
Patent GB-558898-A (GB)
Title: Improvements relating to synchronising means for vehicle and other machinery clutches
IPC: F16D48/06
Filed: 1942-07-22
Abstract: 558,898. Automatic control systems. HUMBER, Ltd., and SAMPIETRO, A. C. July 22, 1942, No. 10250. [Class 38 (iv)] [Also in Group XXVI] The relative rotation of the clutch members generates an electric current which actuates a throttle of the engine driving the clutch to synchronize the clutch members. Fig. 2 shows a friction clutch comprising driving members b, b<SP>1</SP> and a driven disc c mounted on the driven shaft m. This shaft carries magnets a, and other magnets a are carried by a rotatable thrust ring r driven from the clutch housing k. The currents generated in the windings d, e carried by non- rotatable flange u are fed to the field of an electric motor f, Fig. 3, to vary its speed in accordance with the relative speeds of the driving and driven shafts. The clutch can be opened by a fork acting in trunnions x on the slidable non- rotary flange n which imparts movement to the thrust ring r through a fixed thrust ring q and so to levers p which release the frictional driving connection. In a modification, one clutch element may carry magnets and the other element carry a winding. The motor f acts through a worm and sector 12, 11, Fig. 3, on a throttle valve 9 having a lost motion connection with a second throttle valve 2 operable by a pull rod 7.
Patent GB-680836-A (GB)
Title: Improvements in or relating to fluid delivery nozzles
IPC: F23D14/58
Filed: 1950-04-26
Abstract: 680,836. Gas burners. POOLE, R. July 25, 1951 [April 26, 1950], No. 10294/50. Class 75(i) [Also in Group XXIX] One comb-like member 8; or two or more such ,members disposed end to end, are positioned within a slot A<SP>1</SP> of a tubular passage A, so that the slot is divided into a number of delivery passages each of which is formed between two adjacent comb teeth. The slot has lips A<SP>2</SP> beyond which the tips of the comb teeth project, whilst the back of each comb projects within the tubular passage. A slotted plate C separates adjacent combs and slotted plates C' are provided at the extreme ends, and the combs are secured by bolts D. The size of the delivery passages is varied by adjusting the 'position of the comb or combs within the slot. At the tube ends sockets E<SP>1</SP> with flanges E provide an interconnection for adjacent tubes and also support, by means of lugs E<SP>2</SP>, deflector plates F pivotally mounted on pins F<SP>2</SP>. Screws G and springs G<SP>1</SP> allow adjustment of the deflector plate spacing. The teeth at the comb ends may be inclined, and the tubes and combs may be of flexible material and curved as required. When the tube is required to provide a double series of jets, the back of each comb is positioned outside the tubular passage so that the comb teeth lie within this passage.
Patent GB-549162-A (GB)
Title: Improvements in the treatment of latex and product resulting therefrom
IPC: C08C1/02
Filed: 1941-08-14
Abstract: 549,162. Creaming rubber latex. UNITED STATES RUBBER CO. Aug. 14, 1941, No. 10324. Convention date, Aug. 2, 1940. [Class 70] Rubber latex, preserved with formaldehyde, e.g. 0.2 to 3.0 per cent., is aged for 3 days or more, and the pH value raised to 6.5 to 11 as by adding ammonia, so that the latex thickens. Thickening may be accelerated by stirring, e.g. at 250 r.p.m. for 1 “ hrs. The thickened latex may then be diluted to less than 20 per cent. solids, allowed to cream and the cream separated washed as by dilution, re-creamed and the pH value raised to 10 to 11. The viscosity of the final cream may be reduced by heat or by a shearing force. Caustic soda, aliphatic amines, alkaline earth oxides, basic salts, ammonia soaps, or ammonia-preserved latex may be used instead of ammonia to raise the pH value for thickening.
Patent GB-571733-A (GB)
Title: Improvements in or relating to combing machines for textile fibres
IPC: D01G19/26
Filed: 1943-06-28
Abstract: 571,733. Combing-machines. DISTRICT BANK, Ltd., NASMITH, G. W., and NASMITH, J. I., (Representatives of NASMITH, J. W.). June 28, 1943, No. 10397. [Class 120 (i)] In a rectilinear combing-machine in which a pivoted toothed sector 8 drives the detaching roller through a toothed pinion 16 the sector pivot 9 is movable to effect periodic engagement and disengagement of the sector and pinion. The sector 8 is oscillated to rotate the pinion 16 by the action of an edge cam 5 on the plate 3 engaging a metal bowl 6 mounted on a pin 7 in the shank of the sector 8. Simultaneously the sector is engaged with and disengaged from the pinion 16 as appropriate through the action of a cam bowl 11 fitting within the groove 12 and connected by a link 10 to the pivot 9. One arm 17 of a bell-crank lever is pivoted on the pin 15 of the bowl 11 so that as the pivot 9 descends a rod 20 carried by the second arm 18 is moved to the right through a guide 16a to engage the pinion 16 and prevent undesired rotation. A compression spring 21 is mounted on the rod 20 between a block 19 and a collar 22. The drive from the pinion 16 to the detaching roller is through two interengaging pinions which may be changed in accordance with the characteristics of the fibres treated.
Patent GB-1001766-A (GB)
Title: Nitrate removal from phosphoric acid liquors
IPC: C01B25/234
Filed: 1963-03-16
Abstract: <PICT:1001766/C1/1> Nitrate ions are removed from phosphoric acid liquors containing nitric acid and/or dissolved nitrates, e.g. calcium, potassium or sodium nitrates, and possibly potassium, sodium, calcium or ammonium phosphates, by maintaining the liquor at a maximum pH of 2 by addition of free acid if necessary while providing barium ions to recipitate barium nitrate.  Barium phosphates, oxides, hydroxide, sulphides, barium - containing ion - exchange resins, or particularly barium carbonate, which give rise to barium ions in acid solution, may be used.  When 5-10% of alkaline earth metal is present in the liquor, the upper limit of pH is 1. With lesser amounts, the limit may be pH 1.5.  An aqueous slurry of barium carbonate, preferably in stoichiometric excess, plus liquor wherein the phosphoric acid concentration is such that the concentration is a maximum of 50% on addition of the slurry, react in vessel 12, and barium nitrate, crystallized by cooling to 15-35 DEG C. in vessel 20, is separated and washed with water in separator 24. The liquor, concentrated if necessary in 32, is further cooled to 0 to - 10 DEG  C. in 46 to crystallize the remaining barium nitrate which is separated and washed with water in separator 49.  Phosphoric acid leaves the system via pipe 51. Wash water from 24 and 49 is recycled via pipe 34 to barium carbonate slurrying tank 68. Separated barium nitrate, slurried with water in 28 is pumped to vessel 54 where reaction with carbon dioxide and ammonia, or ammonium carbonate regenerates barium carbonate plus ammonium nitrate.  The carbon dioxide is derived in part from that evolved in the initial reaction.  The barium carbonate is separated in 64 and washed with water which is recycled via pipe 72 to the barium nitrate slurrying vessel 28. The barium carbonate passes to slurrying tank 70 via pipe 66. Water evaporated by the heat generated by the reaction in 54 is flashed off in 58 and recycled to barium nitrate slurrying tank 28 via line 60.
Patent GB-1480843-A (GB)
Title: Electrophotography
IPC: G03G15/05
Filed: 1974-06-18
Abstract: 1480843 Electro-photography CANON KK 18 June 1974 10450/77 Divided out of 1480841 Heading G2H The subject-matter of this Specification is identical with part of that disclosed in parent Specification, but the claims are directed to an electro-photographic process using a perforate screen which comprises a conductive base, a photo-conductive layer on the base and an insulating outer layer on the photo-conductive layer, said insulating outer layer being capable of supporting charge both when the photo-conductive layer is activated and when it is not activated; said process comprising forming a primary electrostatic latent image on said screen and producing, from said primary electrostatic latent image, a plurality of secondary electrostatic latent images, each secondary electrostatic latent image being produced by creating an ion flow of predetermined magnitude towards said screen for modulation by said primary electrostatic latent image and charging a chargeable member with said modulated ion flow, wherein there is applied to the screen for formation of at least the first of said secondary electrostatic latent images, but not for forming at least one subsequent said secondary electrostatic latent image, an additional ion flow of the same polarity as said ion flow of predetermined magnitude such that the quantity of ions in each modulated ion flow is substantially the same.
Patent GB-1042401-A (GB)
Title: Improvements in or relating to sterilizing devices
IPC: B67C7/00
Filed: 1963-03-15
Abstract: 1,042,401. Bottling. E. SCHWARZ. March 15, 1963 [March 16, 1962]. No. 10454/63. Heading B8T. Bottles 2 on a conveying system 4 are passed through a preheating section and brought to a temperature of 130‹ C. before being fed singly into an inner compartment 8 of a sterilizing section 10 maintained at about 240‹ C. The temperature of the inner compartment is now lowered to 160/170‹ C. by cool air fed from the bottom and a hood 16 is lowered over the bottle and seals it. Steam at about 130‹ C. is then supplied to the bottle interior through a valve 18, after which hot air is supplied and the hood raised. The bottle is then conveyed through a section 22, and cooled to 110‹ C., a further cooling section 24, a filling section 26 and a closing section 28, and is finally discharged through a section 30 through which air at 240‹ C. is passed. The hot gases from the various sections flow upwardly through shafts to a gas cooling compartment 44.
Patent GB-801232-A (GB)
Title: Improvements in or relating to automatic machines for performing a sequence of operations on a plurality of articles
IPC: H05K13/04
Filed: 1956-04-05
Abstract: 801,232. Assembling electrical components on circuit boards. GENERAL ELECTRIC CO., Ltd., and RUNCIMAN, R. D. April 2, 1957 [April 5, 1956], No. 10457/56. Class 83 (2). An automatic machine for performing a sequence of operations on a plurality of articles, such as printed circuit bases 9, of identical length, comprises a track 4, 6 along which a number of the articles abutting end to end are pushed, operating heads 34 for performing said operations positioned at intervals along the track, a stop 38 near the end of the track and against which the articles are pushed so as to be held in a fixed position and means 53, 54 for controlling the operating heads whereby the operations are performed whilst the line of articles are in the fixed position. The bases 9 are stacked in a magazine 26 from which the lowest base falls on to a platen 8 positioned beneath it and forming the rear end of a line of abutting platens each carrying a base. These platens slide in an upper grooved track 4, 6. The base is located on the platen by upwardly projecting pins 15, Fig. 2 (not shown), engaging in holes in the base. The platens are then advanced one step along the grooved track by an air motor 31 until the leading platen abuts against the stop 38. Components 18 are then assembled on the bases by the operating heads which press the component wire ends through the base and co-operate with an anvil plate to crimp the wires against the printed circuit. The leading base is removed from its platen by a scoop 42 pivoted at 45 and actuated by an air motor 47, 48, and is transferred along a shoot 51 to a conveyer 52. The leading empty platen is then lowered by an air motor 21 into alignment with a lower grooved track 5, 7 along which a line of empty platens are pushed by an air motor 39 and finally the right-hand empty platen is raised by an air motor 20 and engages the lowest base in the magazine. The various air motors are doubleacting and are controlled by valves 53 actuated by cams 54 on a cam shaft 55 driven through a gear-box 57 by an electric motor 56. Throttle valves 62 control the speed of the air motors.
Patent GB-161581-A (GB)
Title: A process for the manufacture of sulphurous acid
IPC: C01B17/50
Filed: 1921-04-09
Abstract: Sulphur dioxide is obtained by heating a mixture of an alkaline earth (including magnesium) sulphate, a sulphide of a heavy metal, and ferric oxide, or a substance containing ferric oxide; it being arranged that there are 1.5 to 3 molecules of ferric oxide in the mixture to every atom of sulphide sulphur.  In an example, gypsum pyrites and ferric oxide are heated to 900-950 DEG  C., so long as sulphur dioxide is evolved.  The Specification as open to inspection under Sect. 91 (3) (a) is not limited to the above proportions.  This subject-matter does not appear in the Specification as accepted.