baber/WOPTO huggingface dataset:
Patent GB-653570-A (GB)
Title: Improvements in surface apparatus for effecting transfer of heat between fluids
IPC: F28F9/00
Filed: 1948-05-21
Abstract: 653,570. Tubular and plate heat ex. changers; tubular elements. HEAT EXCHANGERS, Ltd., and STEVENS, M. J. May 21, 1948, No. 13812. [Class 64(iii)] A heat exchanger, e.g. for heating air for combustion by means of combustion gases, comprises units each having parallel paths 5 for an internal fluid and when stacked (in Fig. 1, three stacks, each of three units, as shown in Fig. 4, are arranged in a casing 1 open ended for the flow of external fluid) the units leave room for the external fluid to flow between adjacent units because end junction portions 6, although wider at the end 7 where they connect with the path ends 4, are deeper at the narrow end 8 where they contact one another and connect to headers 2, 3. The junction portions 6 are of a cross sectional area equal to the sum of the cross sectional areas of the internal fluid paths 5 in each unit. The fluid paths in each unit are formed by tubes which are deformed at the ends 4 to a rectangular section but may be formed by two superimposed corrugated sheets joined at their crests. The tubes in each unit have their rectangular ends in one row but for the greater part of their lengths may be in two parallel planes in staggered formation. Each junction portion 6 may be formed as shown in Fig. 12 with surfaces gradually curving from one end to the other and the upper and lower surfaces meeting at a sharp edge 13. If the units are used in a cylindrical casing, e.g. surrounding a turbine shaft or compressor, the units may be made arcuate or cylindrical in cross section. In a modification, to form flow and return paths, with the inlets and outlets side by side in the same plane at one end, the fluid paths form a U or the junction portions 6 at the other end are joined by an arcuate duct. The junction portions 6 connect to headers 2, 3 which may consist of superimposed annular sections secured by tie bolts. Headers may also conduct the external fluid to the spaces between the internal fluid paths 5 in which case they are paired with the headers to the internal fluid paths, Fig. 18, the pairs having curved contacting surfaces so that the apertures 30 at the junction portion end are side by side and the apertures 31 at the other end are superimposed.
Patent GB-1013555-A (GB)
Title: Safety device for escalators
IPC: B66B29/06
Filed: 1964-04-03
Abstract: 1,013,555. Escalators. HITACHI Ltd. April 3, 1964 [April 5, 1963], No. 13929/64. Heading B8A. In the event of breakage of a comb-shaped plate 12, 13 or 14 at an escalator landing floor 10, an electric circuit through a conductor 17, 18 or 19 is broken and the escalator driving motor is stopped. The plates 12-14 are fitted to a landing plate 11 and have recesses 23 for the conductors 17-19 which are in contact with each other. The conductors complete a relay circuit 28-30 which controls the driving motor. If, for example, the comb-shaped plate 13 breaks at a portion P, the broken portion of plate, together with the conductors 18, falls and the escalator motor is stopped. The conductors 17-19 may extend through the tooth portions of the plates 12-14.
Patent GB-327314-A (GB)
Title: Improvements in or relating to water heaters
IPC: F24H1/20
Filed: 1929-05-06
Abstract: 327,314. Berry, H.. H., and Painton, C. A. May 6, 1929. Water supply and delivery.-In a water heater from which hot water is intermittently forced through a tube 3 by the admission of cold water through a tube 2, the outlet tube 3 is provided with a syphon tube 6 to lower the water level in the heater below the entrance to the outlet tube, thus preventing dripping when the cold water inlet valve is closed. The heating element 4 is surrounded by a circular tube 5.
Patent GB-993540-A (GB)
Title: Improvements in piling plant
Inventor: GREEVES IVAN SYDNEY STROULGER
IPC: E02D13/04
Filed: 1963-04-09
Abstract: 993,540. Pile driving. MOWLEM (CIVIL ENGINEERING) Ltd. April 9, 1964 [April 9, 1963], No. 14167/63. Heading E1H. Hanging leaders for supporting piles during driving comprise two sections 1, 6, the lower section 1 including a box frame and the upper section 1 fitting telescopically within the lower and having a hoisting mechanism by which it can be raised to form an upward extension of the lower section. The rectangular box frame of the lower section is formed of tubes 2, 3, 4 and the upper section is a single tube 6 sliding in sleeves 7 and 8 near the top of the lower section. A bracket 9 on the lower section enables the leaders to be attached to the jib 10 of an excavator 11 and raising and lowering of the upper section is controlled by a hoist rope (not shown). A wire rope 18 supports the hammer 16 and mandrel 17. The pile (not shown) is hoisted into position against the lower section 1 by a rope 21 and the upper section 6 is lowered and telescoped within the section 1 so that the mandrel 17 is lowered within the pile. Guide tubes .15 are provided on the upper section 6 for the hammer and mandrel, and when the section is lowered these tubes abut the guide tubes 13 on the lower section.
Patent GB-847065-A (GB)
Title: Process for the selective polymerisation of isobutylene
IPC: C08F10/10
Filed: 1959-04-27
Abstract: Isobutylene is selectively polymerised in the presence of unbranched butylenes with a heteropoly acid catalyst at 20-200 DEG C. for a time sufficient to convert at least 75% of the isobutylene and insufficient to convert more than 10% of the unbranched butylenes. Liquid phase operation is preferred using a supported catalyst at a space velocity of 1-40 vol./vol./hr. and any convenient pressure, e.g. 1-100 atmospheres.  Specified catalysts are phospho-tungstic, phosphomolybdic, phospho-molybdic-tungstic, phosphovanadic, silico-tungstic, silico-molybdic, arsenomolybdic and boro-tungstic acids supported on silica gel, alumina, silica-alumina, aluminium silicate or pumice preferably containing at least 50% by weight of free or combined silica and having an alkali content (including ammonium), below 1 milli-equivalent per 100 grams, the acid forming 0,5-50% by weight of the composition.  Dimers and trimers are formed, the dimer being principally iso-octane after hydrogenation, the trimer being a mixture of 2,2,6,6,-tetramethyl-4-methylene-heptane and 2,2,4,6,6,-pentamethyl-3-heptene which after hydrogenation yield 2,2,4, 6,6-pentamethyl-heptane.  Butylene-1 is simultaneously isomerised to butylene-2 as described in Specification 847,066.
Patent GB-972013-A (GB)
Title: Improvements relating to cartons
Inventor: MONK ALBERT
IPC: B65D5/30
Filed: 1960-04-22
Abstract: 972,013. Cartons. HOOVER Ltd. April 17, 1961 [April 22, 1960], No. 14282/60. Heading B8P. A carton or a cover therefor, is folded from the blank shown so that all outside surfaces are uninterrupted and are free from staples or tongue-and-slot connections. To assemble the carton or cover, flaps 14 are first folded up and four flaps 19, 20 are next folded up with flaps 20 lying inside flaps 19. T-shaped tabs 16, 17 are inserted through slots 30 and are folded against the inner flap 20 as shown in Fig. 2 with the edges of the T-shaped tabs engaged with the horizontal and vertical edges of a rectangular cut-out 31 in the flap 20. In an alternative embodiment, rectangular cut-outs are provided in all four flaps 19, 20 and are engaged by the T-shaped tabs. The tabs may be of L-shape.
Patent GB-874470-A (GB)
Title: Cooler for sinter and the like material
IPC: F28C3/14
Filed: 1960-04-22
Abstract: 874,470. Cooling sintered &c. materials. METALLGESELLSCHAFT A.G. April 22, 1960 [April 22, 1959], No. 14300/60. Class 51 (2). Apparatus for cooling bulk material such as sinter, cement clinker or ore pellets comprises concentric louvred walls 10 and 28 sloping outwardly towards the bottom below a frustoconical distributer 4, a bustle pipe 30 discharging pressure air into an inner plenum chamber 33 through pipes 32, and an offtake 40 in an outer casing 16 removing air which has passed through the hot material disposed between the louvred walls. Material is charged from a hopper 36 and discharged by vibratory shoots 37 into a central hopper 13 feeding an endless belt 15. I-beams 7 carrying the louvre plates 10 are pivotally attached at their upper ends 8 to a box girder 3 carried by columns 2 and have lower ends slidably resting on supports 9. Louvred wall 28 comprises pairs of channel sections 24 hinged at their lower ends to the shell 16 and carrying flanged filler pieces 29a, 29b, Fig. 3, supporting grate bars 28. The upper ends of channels 24 are welded to plates 22 on bracing members 19. Sloping plate elements 38 guide the material towards the vibratory shoots 37.
Patent GB-1310252-A (GB)
Title: Electric switch with a current limiting action
IPC: H01H5/02
Filed: 1970-03-24
Abstract: 1310252 Automatic circuit breakers; electromagnetically operated switches FABRIEK VAN ELECTRISCHE APPARATEN NV 24 March 1970 [25 March 1969] 14362/70 Heading H1N An overload responsive switch comprises a fixed conductor 4 and a movable contact arm 3 lying parallel and carrying current in opposite directions so as to be electrodynamically repulsed; the arm 3 has two pivots 5, 6; pivot 5 is normally fixed and pivot 6 has limited movement so that the repulsion acts to increase contact pressure but if the current becomes excessive pivot 5 is released and pivot 6, after moving a short distance, becomes fixed so that the repulsion then acts to open the contacts. The pivot 5 is retained by a permanent magnet 10 against an adjustable current setting spring 17 which assists the opening movement. The pivot 6 is carried by a current carrying member 14 lying parallel to the conductor 4 so as to increase the repulsion; a magnetic core 19 of U- shape (Fig. 3, not shown) surrounds the assembly to concentrate the flux. The member 14 is biased by an adjustable contact pressure spring 18 to engage a fixed stop 7, when pivot 5 is released, so as to fix pivot 6.
Patent GB-1534878-A (GB)
Title: Diaphragm valves
IPC: F16K7/12
Filed: 1976-03-10
Abstract: 1534878 Valves SAUNDERS VALVE CO Ltd 10 March 1976 [8 April 1975] 14409/75 Heading F2V A compressor 1 for a diaphragm of a diaphragm valve has a body part 2 attachable to a spindle 9 and to a diaphragm 18 by either a threaded stud 16 or a bayonet stud 19. As shown the spindle is attached by a split collet 3. A threaded stud may pass through a passage 15 to engage a portion 13 of a spring nut 12 as shown to the right of the centre line. Alternatively a stud 19 with a crosspin 20 may pass through a passage 15 which has slots (not shown) for the pin, the spring 14 of the spring nut being compressed to allow the stud to be turned 90 degrees to bring the pin out of alignment with the slots. In Fig. 2 (not shown) the body is split and held assembled by a circlip (21). In Fig. 3 (not shown) a claw attachment (22) for the spindle head (8B) is retained in the compressor body by a pin (24).
Patent GB-1222274-A (GB)
Title: Advancing mine roof support units
IPC: E21D23/00
Filed: 1968-03-26
Abstract: 1,222,274. Advancing mine roof support control circuits. BERGWERKSVERBAND G.m.b.H. 26 March, 1968 [31 May, 1967], No. 14445/68. Heading E1P In an advancing mine roof support assembly comprising two frames adapted to be advanced in sequence the control circuit therefor provides for intervals between output pulses in the ducts A and B respectively associated with said frames to allow one frame to be repressurised after advancement prior to the depressurising of the other. A trigger impulse in a duct 2 moves a valve 4 to the position 4b so that compressed air from a source 3, 3a can enter a valve 5. The impulse is also fed via a valve 6 to move the valve 5 to the position 5a whereby air is fed through the valve 5 to a duct 7 leading to a two-way valve 8 in communication with ducts A, B. Valve 5 is also connected to first and second time delay mechanisms 9, 13 as shown whereby it can be returned to the position 5b and then the position 5a in timed sequence. In the position 5b the duct B is vented to atmosphere and compressed air is fed from the duct 3a to a duct 10 having a two-way valve 11. When the valve 5 again moves into the position 5a air from the duct 10 moves valve 8 into position 8b whereby pressure is fed to duct A to depressurise and advance its associated frame. At the same time pressure in a duct 15 moves the valve 11 to the position 11b. Pressure existing in duct 7 returns the valve 5 to its starting position 5b and air passes through duct 10 to move the valve 11 into the position 11b and pressurise ducts 16, 16a which in turn move the valve 18 and 4, to the positions 8a and 4b respectively. Valve 11 is returned to its position 11a by air. pressure in a duct 17a connected to the duct B an air pulse exists for a time in a duct 16 due to a choke 19 therein so that the next control circuit can be triggered. In a modification, wherein a pulse is only supplied by a duct A, B when the permitted advance is sufficient, the compressed air drives a motor actuating the valve 4 by a cam mechanism and an on-off valve is actuated by a part mounted on a conveyor and adapted to engage a feeler provided on the said valve for circuit details of which, together with coalface feeler probe Fig. 2 (not shown) should be referred to.
Patent GB-732185-A (GB)
Title: Improvements relating to dry gas meters
Inventor: THORP ROBERT FRANKLIN
IPC: G01F3/22
Filed: 1953-05-26
Abstract: 732,185. Gas meters. THORP & CO., Ltd., T. May 13, 1954 [May 26, 1953], No. 14608/53. Class 54. A dry gas meter comprising a number of similar gas measuring units, each having two diaphragms, each in a separate diaphragm chamber a, b, with transfer valves i for each unit operated by flag rods c and means for connecting the units to a single index mechanism o is characterised in that the cranks d upon the several pairs of flag rods are connected by links e to operatively interconnected cranks f having such a phase relationship that the timing of the gas inlet and outlet periods of the several units ensures an absence of pulsations in the meter gas outlet s. Each crank f is mounted upon a crank-shaft g which extends into a gear-box h and carries a second crank j pivotally connected to one side of a triangular frame k, the apex of the triangle being connected to a crank m. The cranks and m are all of the same length and angular disposition. The index o is operated by the end gear-box h. Inlet gas from the branch p fills the meter case q and passes by branches r to the outlet s. The gear-boxes h may be interconnected by shafts capable of being disconnected and reset to vary the angular relationship between the cranks f, by gear trains, or by chain-and-sprocket wheel gearing, the frame k being dispensed with. Specification 666,817 is referred to.
Patent GB-1254052-A (GB)
Title: Production of dialkyl esters of hydrazodicarboxylic acid
Filed: 1969-03-20
Abstract: 1,254,052. Production of dialkyl esters of hydrazodicarboxylic acid. BADISCHE ANILIN- & SODA-FABRIK A.G. 20 March, 1969 [21 March, 1968], No. 14683/69. Heading C2C. The production of a dialkyl ester of hydrazocarboxylic acid by reacting an alkyl chloroformate with hydrazine hydrate in an inert organic solvent at from -10 to +20 C. is carried out by maintaining an excess of Hydrazine hydrate throughout the reaction, recovering the unreacted hydrazine hydrate and the solvent by heating (preferably at above 70 C.) the reaction mixture to form two liquid phases, separating the two liquid phases thus formed, adding an alkali (which is able to liberate hydrazine as hydrazine hydrate from hydrazinium hydrochloride) to the lower phase, processing the upper phase containing the dialkyl ester of hydrazodicarboxylic acid and the organic solvent and processing the lower phase containing the unreacted hydrazine hydrate.
Patent GB-290679-A (GB)
Title: Improved manufacture of concentrated nitric acid
IPC: C01B21/26
Filed: 1928-05-19
Abstract: 290,679. Montecatini Soc. GÚnÚrale per l'Industria Mineraria ed Agricola. May 20, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Nitric acid, catalytic production of.- Concentrated nitric acid is obtained by catalytically oxidizing ammonia to produce nitric oxide and water which are then separated from one another, oxidizing the nitric oxide to nitrogen peroxide, absorbing this in a portion of the water, and treating the solution with oxygen. In the illustrated apparatus air and ammonia are mixed at A, compressed at B to 5-6 atmospheres, and passed through a filter C to the contact chamber D. The products are cooled in the heatexchanger E and coil F and passed to the separator I. The nitric oxide is mixed in the chambers H with oxygen from the pipe G and the resulting nitrogen peroxide is absorbed in the water passing through the chambers L. Superfluous water is withdrawn from the system at O. The solution is treated in the column P with compressed oxygen at 40-50‹ C. with production of concentrated acid. Unabsorbed gases after passing through the heat-exchanger, drive an engine S coupled to the compressor B.
Patent GB-1494465-A (GB)
Title: Material and process for removing environmentally harmful gases from industrial waste gases
IPC: B01D53/02
Filed: 1976-04-12
Abstract: 1494465 Absorption material HERMANN WEGENER 12 April 1976 14841/76 Headings C1A and C1J [Also in Division B1] A material for removing environmentally harmful gases, such as sulphur oxides, hydrogen sulphide, hydrogen halides and/or mercaptans from waste gases comprises limestone burnt at 400‹ C., ground to 20-50 Á, combined with boric acid or borates and liquid sodium or potassium metasilicates, and the mixture granulated to 0À4-2 mm. before heating to 190-450‹ C. The material may additionally contain chrysotile asbestos, asbestos fibres or magnesium silicates in 10-15% by wt., having a preferred particle size of 20-50 Á.
Patent GB-1170991-A (GB)
Title: Improvements in or relating to Capacitors.
Inventor: HUNT PETER GORDON
IPC: H01G4/18
Filed: 1967-03-31
Abstract: 1,170,991. Capacitors; printed circuits. MINISTER OF TECHNOLOGY. 19 April, 1968 [31 March, 1967], No. 14842/67. Headings H1M and H1R. A capacitor or cross-over comprises a first conductive layer 2 on a glass or ceramic layer 1, a first dielectric layer 3, a second dielectric layer 4 formed of a hardened photo-resist material, the material of the first dielectric layer 3 having a dielectric strength resistivity, and dielectric constant greater than those of the hardened photo-resist material. The photo-resist material is preferably of the negative type having a dielectric constant of between 2 and 3. The first dielectric layer preferably has a dielectric constant of at least 7, e.g. aluminium oxide formed by anodizing a vapour deposited aluminium layer, a deposited silicon monoxide layer, or a polysiloxane formed in situ by electron bombardment in vacuum of a precursor. After the resist layer is applied, the coated substrate is baked and the resist layer is exposed to u.v. radiation through a mask defining the desired shape of the dielectric layer. The unexposed resist is removed using the appropriate developer, and the second conductive layer applied, e.g. by vacuum evaporation of aluminium through a stencil.
Patent GB-1216906-A (GB)
Title: Film projector
IPC: G03B41/08
Filed: 1968-03-28
Abstract: 1,216,906. Cine projectors. VOIGTLNDER A.G. and PANOPIX RESEARCH Inc. March 28, 1968 [March 28, 1967], No. 14994/68. Heading G2E. In a cine projector having continuous film feed, optical compensation is provided by a polygonal refractory prism 9 rotating on one side of an aperture wall 12 in synchronism with a rotating ring of lenses 8 on the other side, and with the film transport. Each face of prism 9 has cemented to it a plano-convex lens 18. A condenser system 13 includes a cylindrical lens 6 which broadens the illuminations beam to cover a gate aperture 14 two and a half times the normal width. Lenses 40 of the ring 8 may be a sheet of moulded plastics and are carried as a disc 41 mounted on a shaft 38 driven through gearing by motor 24 together with the shaft 20 on which prism 8 is mounted. The film feed sprocket is driven by a gear 25 rotatable on shaft 20 and driven by engagement through an eccentric screw 26 with the disc 19 carrying prism 8. Rotation of screw 26 provides a framing adjustment.
Patent GB-972475-A (GB)
Title: Process and apparatus for making conveyor belting
Inventor: ELLIOTT ROBERT HARVEY
IPC: B29D29/06
Filed: 1962-04-18
Abstract: 972,475. Conveyer belt manufacture. AMERICAN BILTRITE RUBBER CO. Inc. April 18, 1962, No. 15021/62. Heading B5A. Conveyer belting covered with elastomeric material 14, 16 is provided with rounded edges by folding flexible ribbons 28 about the edges of the belting as shown in Fig. 4, heating and moulding the compound belting, and subsequently removing the ribbons 28 for re-use. The ribbons 28 may be of open weave fabric so as to adhere to the belting by penetration of the elastomeric covering material through the interstices of the ribbon. In Fig. 2, ribbon is fed from coils 30, folded and applied by rollers 32 and wound off on rollers 38. Vulcanizing is effected by passing the belting between a heated roller 31 and heated steel band 33.
Patent GB-354416-A (GB)
Title: Improvements in the shape and arrangement of shafts of golf clubs, polo sticks and the like, and handles of racquets and similar implements
IPC: A63B53/10
Filed: 1930-05-16
Abstract: 354,416. Striking-appliances for games. HAGON, A. C., 1, Garden Court, Temple, London. May 16, 1930, No. 15069. [Class 132 (ii).] The shaft or handle of a golf club, polo mallet, racket, &c. is streamlined between the grip and the head to reduce air resistance during the striking part of a stroke. The streamlining is effected either by shaping the material of the shaft or handle, or by the application of a covering.
Patent GB-529077-A (GB)
Title: Improvements in or relating to dual wheel vehicles
IPC: B60B11/02
Filed: 1939-05-20
Abstract: 529,077. Motor vehicle driving arrangements. DIFFERENTIAL WHEEL CORPORATION. May 20, 1939, No. 15085. Convention date, Sept. 13, 1938. [Class 79 (ii)] [Also in Group XXXIV] Dual driving-wheels comprise a pair of wheels rotatably mounted on a driving axle and connected together and to the driving axle by a differential gear, braking means being applied directly to one of the wheels, as by a brake drum thereon. According to another feature of the invention the differential gear wheels are all arranged in one plane. In the construction shown in Fig. 1, the inner wheel 7 of a pair is mounted on roller bearings 12, 17 on an axle housing 2, 3. and the outer wheel 31 has a hub 32 mounted rotatably on a bearing 33 on the hub 8 of the wheel 7. The driving axle-shaft 1 has a spider 43 secured thereto, this spider carrying differential planet pinions 53 meshing with internally- and externally-toothed rings 36, 25 respectively secured by bolts 38, 11 to the two road wheels. A brake drum 61 is secured to the road wheel 7 Covers 57, 58 are provided for the wheel and gearing. In the construction shown in Fig. 3, the spider 88 on the axle shaft 1 carries spindles 94 for bevel pinions 93 meshing with two crown bevel wheels 77, 80 fixed respectively to the inner and outer road wheels 7, 31. The bevel wheel 80 is bolted to a member 81 secured by bolts 38 to the road wheel 31, and the bevel wheel 77 is secured by bolts 11 to the hub 8 of the road wheel 7. The two kinds of differential gear are inter-changeable, the planet pinion spiders either being changed by removing their hubs 44 bodily from the axle shaft 1, or by forming them with a removable part 88, Fig. 3, bolted at 89 to the hub 44. The axle shaft 1 is driven in the usual way 'through a central differential gear (not shown).