baber/WOPTO huggingface dataset:
Patent GB-789945-A (GB)
Title: Improvements in or relating to rotary regenerative heat exchangers
IPC: F16C19/54
Filed: 1956-03-22
Abstract: 789,945. Thermal regenerators. SVENSKA ROTOR MASKINER AKTIEBOLAG. March 22, 1956 [March 29, 1955], No. 8943/56. Class 64(1) [Also in Group XXXIV] A rotary regenerative heat exchanger comprises a casing 12, Fig. 1, having passages 34, 36 therethrough for hot and cold gases, respectively, aligned inlet and outlet ducts 24, 30 and 22, 32 connected to the ends of the passages, a structural framework supporting the exchanger and irncluding a hub portion 56, and a bearing 60 for rotatably supporting the rotor 70 with respect to the hub portion. The casing 12 includes end plates 14, 16 having sectorshaped openings in alignment with the inlet and outlet ducts, the plate 16 being supported by L-beams 38, 40, 42, 44, Fig. 7, while the plate 14 is strengthened by beams 62,.64, Fig. 2. A central part 50 of the plate 16 supports the hub 56 which is closed at its upper end by a disc 58 to support the lower raceway 84 of the bearing 60, the upper raceway 92 being connected to the rotor 70 by a thin annular extension 98 which permits rotor distortion without imposing high stresses on the bearing. The raceway 92 is driven by a motor 112 through toothed gearing 108, 110 enclosed in a heat-insulating jacket 122 which carries a lubricant for the gearing. A similar jacket 120 surrounds the bearing 60 which may be ungreased and additionally protected by a flow of cool compressed air or other gas admitted through apertures 132, 134 to the space within the bearing and allowed to discharge into the passages for the heat-exchanging fluids through the space between the raceways of the bearing and a clearance space 136. The rotor is divided into sector-shaped compartments 78 provided with supporting bars 80 for heat exchanging plate elements 82 and has heat-insulating coverings 128, 130. Similar coverings 124, 126 are provided for the ducts at the "hot" end of the regenerator. Modified constructions are described in which a labyrinth seal is provided between the inner periphery of the rotor and one of the end plates of the casing, the rotor is belt driven and the bearing is located at the lower end or adjacent the middle of the rotor. In Fig. 8, the rotor is driven by a peripheral pin rack 238 and suspended from two T-beams 210, 212 which form part of the structural framework and support a hub comprising detachably connected portions 218, 220. The portion 220 has a radial flange 222 with raceways on both faces to form a double bearing assembly with flanges 228, 234 secured to the inner shell 72 of the rotor. Alternatively, the flanges 228, 234 may be attached to the hub and the flange 222 to the rotor. Reference has been directed by the Comptroller to Specification 733,728.
Patent GB-316327-A (GB)
Title: Improvements in two-stroke cycle internal combustion engines
IPC: F02M69/00
Filed: 1928-03-24
Abstract: 316,327. Crary, J. H. March 24, 1928. Two-stroke-cycle engines; cylinders, ports of.-At the end of the power stroke of the piston, air pre-compressed in the crank case enters by the port 7 and assists to drive out the exhaust through the terminal port 8. During the instroke an auxiliary exhaust outlet 15 is opened by the valve 16, its time of opening being adjustable, automatically or otherwise. Mixture which has been compressed in the annular pump space 2 is delivered to the cylinder past the valve 13 after the valve 16 is closed.
Patent GB-630287-A (GB)
Title: Improvements in thermal responsive glow discharge electric switches
IPC: H05B41/08
Filed: 1947-04-03
Abstract: 630,287. Thermal switches. BRITISH THOMSON-HOUSTON CO., Ltd., and BLOOD, W. R. April 3, 1947, No. 9083. [Class 38(v)] A bimetal element 1, adapted to make contact at its free end 6 with a rod 4, is arranged in a spiral so that the glow discharge is mainly confined to the part of the element which, on being heated by the discharge, moves in a contact-closing direction. Contact-closure is maintained for a period by delayed heating of the remainder of the element resulting from a redistribution of heat between the parts. Alternatively, the bimetal may be of zigzag form, Fig. 2. Specification 537,901, [Group XL], is referred to.
Patent GB-330329-A (GB)
Title: Improvements in boxes or receptacles for incandescent gasmantles
IPC: B65D5/50
Filed: 1929-03-21
Abstract: 330,329. Sutton, C. J. March 21, 1929. Fittings, internal.-A box for an inverted gas mantel is provided with a tongue B<a> cut from the base of the box to engage within the groove t<1> in the mantel ring t and hold it firmly in the box; the box may be formed from one or two blanks.
Patent GB-793838-A (GB)
Title: Improvements in or relating to tobacco smoke filtering materials
IPC: A24D3/16
Filed: 1956-03-23
Abstract: A filtering material for cigar or cigarette filter tips or holders, or tobacco pipes, comprises a support permeable to gases and impregnated with furfural slightly polymerized on the support.  The support may be cotton or paper in thin layers or silica gel granules and is impregnated with furfural mixed with caustic potash or caustic soda and dried in a gentle air stream at 60 DEG  C. to slightly polymerize it to form a furfural resin.  After drying, the impregnated support is washed thrice in a solvent and once in water to eliminate the unpolymerized furfural, and again dried.  The filtering material may be contained in a cartridge pierced at both ends to pass smoke.
Patent GB-535997-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04M1/57
Filed: 1940-05-24
Abstract: 535,997. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and FRYDMAN, E. May 24, 1940. No. 9170. [Class 40 (iv)] A spare number circuit which is common to all the unallotted lines of a group and which supplies NU tone through the windings of a relay NU includes a pair of non-linear resistance units NLR 1,2 (or low voltage neon tubes) bridged across the line with their junction point connected to battery, as shown, if the ringing generator is earthed, or to earth if the latter is connected to battery, so that the increased voltage during ringing allows sufficient direct current to flow to operate the ring-trip. relay, but the backbridge relay cannot operate to effect metering. The use of two units NLR1, 2 allows for the possibility of the jumper leads being reversed at the frame IDF, and also provides for the case of leg ringing on party-lines. The backbridge relay can never energize in series with relay NU on account of high resistances R1, R2. Relay NU energizes if the jumper leads are short-circuited, marking the circuit busy and giving an alarm. The arrangement may be employed to prevent metering on calls to a test desk or other special position.
Patent GB-590429-A (GB)
Title: Improvements in or relating to hydraulic pumps or motors
IPC: F01B1/06
Filed: 1945-04-13
Abstract: 590,429. Crank shafts. ELECTROHYDRAULICS (MESSIER), Ltd., (formerly MESSIER AIRCRAFT EQUIPMENT, Ltd.), and HADEKEL, R, April 13, 1945, No. 9294. Drawings to Specification. [Class 80 (ii)] [Also in Groups XXVI, XXVIII and XXIX] In an in-line multi-cylinder fluid pump or motor of the type in which the fluid chamber is caused to change its volume according to an approximate sinusoidal law and comprising an even number of cylinders which number is not divisible by four, the crank-throws are so arranged that the phase difference between succeeding throws is alternately one half and one-and-a-half times the average phase difference, the latter being equal to 360 degrees divided by the total number of throws.
Patent GB-376327-A (GB)
Title: Appliances of use in word-making games
IPC: A63F9/08
Filed: 1931-03-27
Abstract: 376,327. Word-making games. BUMFORD, P. H., Pen-y-bryn, Repton Road, Orpington, Kent. March 27, 1931, No. 9298. [Classes 132 (iii) and 146 (ii).] Apparatus for use in word-making games comprises two or more superposed discs C, D rotatable about a centre pin E on the baseplate A having a pointer B. The discs have words printed radially around their peripheries and are rotated to locate words, obtained from clue words, on each disc opposite the pointer B which together form another complete word, e.g. " pan " and " try together forming " pantry." The words marked upon the discs may be readily erasable whereby a different series of words may be substituted. The edges of the rotatable discs may be faceted to assist in their rotation. The game is of educational value to children and can be used in solving crossword puzzles. Reference has been directed by the Comptroller to Specification 325,593, [Class 146 (ii), Stationery &c.].
Patent GB-921716-A (GB)
Title: Automatic track brake control
IPC: B61L17/02
Filed: 1960-03-17
Abstract: 921,716. Retarder control systems. ETABLISSEMENTS SAXBY. March 17, 1960 [Nov. 19, 1959], No. 9415/60. Class 105. An automatic control system for a track brake comprises a row of magnetic detectors spaced along the brake so as to produce electrical pulses on passage of a vehicle wheel, and are arranged in successive groups I, II-N, Fig. 4, the length of each group being less than the least distance between succeeding wheels of a vehicle, the groups II-N being connected successively by a rotary switch 27 under control of a frequency divider 22, dividing the impulses from the groups by the number of detectors in a group to a comparator of the type shown in Fig. 3, whilst the first group I is connected to a similar comparator 23, the output of which on the passage of a wheel is used both to reset the switch 27 to its initial position for connecting group II to the comparator 24 and also, for measuring the speed of the wheel and where the speed of the vehicle is at or below a predetermined speed, to release the brake. The even numbered detectors of a group are connected to amplifier 6, Fig. 3, and the odd numbered detectors to amplifier 5 of a speed measuring comparator, the outputs of the amplifiers being fed in opposition to a vibrating relay 7 so as to connect a source 15, through safety resistance 26 and alternating contact 20 of relay 7 to condensers 16, 17 connected across windings 13, 14 of comparator relays 8, 9 so that their discharge currents through windings 13, 14 oppose a reference current i in windings 10, 11, representing the predetermined speed of the vehicles passing through the brake, at which the brake should be released, the current i being adjustable by variable resistance 25. When current i is neutralized, the predetermined speed of the vehicle having been attained, a signal current is applied over contact 18 or 19 to terminal 21 which controls the release of the brake.
Patent GB-1245724-A (GB)
Title: Moulds having electrodeposited moulding surfaces
Inventor: LEOWALD MARIA-EDITH
IPC: B29C33/02
Filed: 1970-02-26
Abstract: 1,245,724. Making moulds. M. E. LEOWALD, C. LEOWALD, and G. E. CALLAHAN. 26 Feb., 1970 [1 March, 1969], No. 9459/70. Heading B5A. [Also in Division B3] A method of manufacturing a mould part having a moulding surface provided by one. side of an electrodeposited layer 1 wherein fusible material is fixed against the other side of the layer, the fusible-material being covered with a reinforcing backing 2 applied to the layer I, the arrangement of fusible material being such that it may be melted out to form a duct system 4 between the layer 1 and the backing 2. A further layer 1 may be deposited over the fusible material before the backing is applied (Fig. 1b). The fusible-material is wax and the reinforcing backing is a cold setting plastics such as an epoxy resin or it may be a soft metal in the example of Fig. 1b. Two parts may be juxtaposed to form a mould as shown, with plates 3 to clamp the mould. Inlets 5 and outlets 6 are provided to permit flow of a heat exchange medium when the mould is used. The fusible material may be adhesively secured to the layer.
Patent GB-817287-A (GB)
Title: Oil burners for heating apparatus
Inventor: STEER LEONARD ARTHUR COLEMAN
IPC: F24C5/12
Filed: 1956-03-27
Abstract: 817,287. Supplying air to burners. RADIATION Ltd. March 25, 1957 [March 27, 1956], No. 9483/56. Class 75(1) Oil burning means of the kind in which combustion air is supplied by a thermostatically controlled electric fan comprises an air chest a which contains a burner b and is supplied alternatively with air by the fan or by the induction effect of the burner, the induced air being controlled automatically by a flap f which is held closed by pressure of the air supplied by the fan. The flap f is mounted in an aperture e through which the induced air enters the chest and has a counterweight g which moves the flap to its closed position. The flap is opened by the induced air. Alternatively the flap may be opened by the counterweight. The air from the fan enters the chest through an aperaure located in the end wall beside the induced air aperture e. The burner is surrounded by a perforated screen c. A baffle h mounted in the chest is of greater depth opposite the aperture for the air from the fan than opposite the induced air aperture.
Patent GB-435406-A (GB)
Title: A transportable machine for piercing turf and the like for aerating, cultivating andfertilizing purposes
IPC: A01B45/02
Filed: 1934-03-22
Abstract: 435,406. Machines for working land. BROWN, G., 3, Suffolk Road, Barnes, London, GRAY, C. D., The Divots, Rosemount Road, Richmond Hill, BROWNE, J. COLLIS-, Monteagle, Godalming, both in Surrey, and COLE, A. H. P., Stanmore Hill Works, Stanmore, Middlesex. March 22, 1934, No. 9497/33. [Class 6 (i)] In a machine for piercing turf &c. for aerating, cultivating, and fertilizing purposes comprising a frame, a reciprocating member carrying prongs or the like and arranged so that it may have relative movement with respect to the frame during progression of the latter, and means for restoring the reciprocating member to its normal position when the prongs &c. are withdrawn from the ground, the prongs are guided vertically into the ground by sliding within a guide forming part of a shoe or cage which is reciprocated or oscillated so as to be pressed into contact with the ground to prevent the ground from being torn or raised when the prongs are withdrawn from it. The machine may be mounted on a front wheel 2 and rear wheels 3, the front wheel being driven from an engine 16 by belt gearing, and handles 4 being provided. The prongs 30 are carried by a plunger member 29 sliding through a guide 31 on a shoe or cage 32, the lower parts of which form guides for the prongs. The plunger 29 is reciprocated by a connecting-rod 28 and a crank 27 connecting two flywheels 26 on a shaft 24 driven by belt gearing from the engine 16. The shoe 32 is carried by links 33 pivotally connected to pivoted rocker arms 35 which are connected together by a bar 36. When the prongs 30 have entered the ground continued onward movement of the machine causes the links 33 to lower the shoe 32 on to the ground. The shoe is raised as the prongs leave the ground by engagement of a cam 39 on the shaft 24 with a projection 37 on the bar 36. The shoe is finally returned into its initial forward position by engagement of the cam 39 with an extension 40 of one of the links 33. The crank 27 may be adjustable to regulate the depth of work. A clutch may be provided to disengage the drive of the turf-piercing mechanism.
Patent GB-1217250-A (GB)
Title: Improvements in or relating to crop-drying systems
IPC: A01D43/00
Filed: 1968-02-27
Abstract: 1,217,250. Crop drier. TEXAS INDUSTRIES Inc. 27 Feb., 1968 [17 March, 1967], No. 9515/68. Heading F4G. The subject matter of this Specification is identical with that described in Specification 1,217,248, but the claims relate to crop drying apparatus, mounted in a superstructure on a vehicle wherein the superstructure has an air inlet near one end, an exhaust air outlet at the opposite end, a plurality of crop conveyers on different levels driven alternately in opposite directions and means for guiding air through a fixed perforated surface associated with a lower conveyer before reaching an upper conveyer.
Patent GB-982683-A (GB)
Title: Improvements in or relating to settling devices, particularly for thickening material to be fed to centrifuges
IPC: B01D21/00
Filed: 1961-03-15
Abstract: 982,683. Filtering and settling devices. ESCHER WYSS A.G. March 15, 1961 [March 15, 1960], No. 9520/61. Heading BID. A settling device for thickening material to be fed to a centrifuge 5 comprises a vessel 1 with part of its wall tapering downwards, the upper part of which has a non-horizontal strainer-like wall 11 for draining off liquid free of solid water in order to increase the throughput. Solid matter in the material, which is fed by an inlet pipe terminating near the top of the vessel, settles in the lower part of the vessel and liquid free from solid matter is drained off at the top. The thickened material passes through a valve 4 and pipe 3 to the centrifuge, from which the dry solid matter leaves at 7 and the separated liquid is returned to the settling device through a pipe 6. The drained-off liquid which passes through the wall 11 collects in a trough 9, whence it is discharged through a pipe 10. The strainer orifice may be in a detachable filter ring forming part of the wall. The strainer wall may incline inwards to minimize the adhesion of solid matter. In addition, Fig. 3, the trough surrounding the wall may be closed and pressure pulses may be imparted to the liquid in the trough to keep the strainer orifice clean, the discharge pipe 18 having a valve which is opened under discharge pressure but closed during the pressure pulses. The capacity of the settling device may be increased by closing the tap, the pipes 2 and 6 passing through a sealed cover, whereby a greater pressure is possible on the filter surface. The same result may be secured by adding an annular shell 21 to the filter ring 20, Fig. 4. The filtering capacity may also be increased by the addition of a vibrator to vibrate the strainer or filter.
Patent GB-218393-A (GB)
Title: Improvements in and relating to electric heating units or elements
IPC: H05B3/06
Filed: 1923-04-07
Abstract: 218,393. Brown, A. April 7, 1923. Heating by electricity.-In a heater employing a resistance wire 9 surrounded by a perforated tube 7 inserted into the vessel containing the liquid to be heated, a metallic member 76 to which is connected the supply conductor 83 is mounted on the end of the tube 7, and the conductor 82 is connected to a socket 79 mounted in the member 76 and engaging a plug 70 secured to the perforated tube. The socket 79 is screwed into an insulating member 78 of black fibre which fits tightly into the metallic member 76.
Patent GB-164906-A (GB)
Title: Loose-leaf binder for pocket and account books
IPC: B42F13/00
Filed: 1920-04-06
Abstract: 164,906. Wilson, F. K. April 6, 1920. Clamping-devices; post files; attaching files to covers.- A loose-leaf binder for pocket and account books has mounted in the back of the cover a ring attachment for holding the leaves, the back of the cover being also fitted with springs which cause the inner edges of the covers to grip the contents irrespective of their thickness. Two semicircular members e. f are hinged together and attached to the back o, and are provided with springs h or k, Fig. 1, tending to araw the parts together or hold them apart, according as the covers a, b are open or closed. A rod m, carried by the hinges g or attached directly to the back c, is provided with loops n, which may be solid or in two parts, to engage the slotted or perforated holes in the leaves. In an alternative construction, shown in Fig. 6, springs o are fitted in the back c, the rings being held to the back by staples q, and clips or the like r are provided on the covers to maintain them in the open position.
Patent GB-1051268-A (GB)
Title: Hair treating compositions
IPC: A61Q5/00
Filed: 1964-03-06
Abstract: 1,051,268. Hair-treating preparations. COLGATE-PAMOLIVE CO. March 6, 1964 [March 15, 1963; May 27, 1963], No. 9655/64. Heading A5B. [Also in Division C5] Hair-treating preparations, e.g. creams and shampoos, comprise a surface active agent and selenium sulphide having a particle size below 50 microns. Hair-conditioning agents, e.g. lanolin and cocodiethanolamide, thickeners, dyes and other conventional additives including germicides such as hexachlorophene and p-chloro-m-xylenol may also be present.
Patent GB-1332878-A (GB)
Title: Method of producing firmly bonded wear-resistant coat9ngs  of metal nitride or carbonitride on metal parts
IPC: C23C16/34
Filed: 1972-03-01
Abstract: 1332878 Metal nitride or carbonitride coatings DEUTSCHE EDELSTAHLWERKE AG 1 March 1972 [23 March 1971] 9658/72 Heading C7F A metal nitride coating is formed on a hard metal substrate by reacting with a gas mixture containing a metal halide, N 2  and H 2  with a N 2 /H 2  volume ratio of at least 3:1. A metal carbonitride coating is produced from a gas mixture containing metal halide, N 2 , H 2  and CH 4  with a N 2 /H 2  + CH 4  volume ratio of at least 3:1, a H 2  content of 0À8-0À99 parts and a CH 4  content of 0À2-0À01 parts. The coating may be a nitride or carbonitride of Ti, V, Cr, Zr, Nb, Mo, Hf, Ta or W, 3-50 microns thick and may be deposited at 950-1100‹ C at 50-800 torr. The high N 2 :H 2  ratio prevents formation of the eta phase in the hard metal.
Patent GB-313117-A (GB)
Title: Improvements in or relating to four-stroke internal combustion engines
IPC: F02B1/00
Filed: 1929-03-26
Abstract: 313,117. Seiliger, M. June 7, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Drawings to Specification. Four-stroke-cycle engines.-Cooling of the cylinders is effected by supplying scavenging and charging air during the whole of the exhaust and' the whole or part of the suction strokes. The inlet valve remains open during the whole of the two strokes, but the exhaust valve may be closed before the end of the suction stroke. The air is supplied at low pressure; if supercharging is desired a second charge of air at higher pressure may be injected towards the end of the suction stroke. The air may be moistened.
Patent GB-672424-A (GB)
Title: Improved variable pitch propeller control system
IPC: B64C11/42
Filed: 1950-04-20
Abstract: 672,424. Variable-pitch propellers. GENERAL MOTORS CORPORATION. April 20, 1950 [April 23, 1949], No. 9684/50. Class 114. A hydraulic control device has an accumulator 60 with its control valve 70 forming a shunt across the minimum pressure valve 10 between the pump 1 and the servomotor control valve 30. The accumulator is discharged by movement of collar 90, the cam 99 moving the lever 101, opening the valve 80 and thus allowing pressure fluid from the accumulator to unseat valve 71b. The movement of collar 90 simultaneously opens valve 30 to feather or unfeather as required. Fluid from the pump 1 cannot pass along pipe 12 until a minimum pressure is obtained to lower valve 10. When not required to move the blade operating piston 41 fluid is by-passed to the reservoir by the valve 51, the lifting pressure of which is influenced by engine speed, and by the pressure in the pipe 44. An excess pressure valve 53 is also provided. In a modification the valves 70, 80 are replaced by cylindrical valves.
Patent GB-352048-A (GB)
Title: Improvements in or relating to speed indicators
IPC: G01P13/04
Filed: 1930-03-26
Abstract: 352,048. Variable resistances. ETABLISSEMENTS E. JAEGER, 2, Rue Baudin, Levallois-Perret, Seine, France.-(Assignees of Planiol, R. J. H. ; 56, Rue d'Assas, Paris.) March 26, 1930, No. 9707. Convention date, March 29, 1929. [Class 37.1 In order to eliminate the effects of changes of potential in a source of direct current there is inserted, between the source of direct current connected in series with the conductor 51 and the terminals 55, 56 leading to an electric speed indicator, a lamp 52 having an iron filament in an atmosphere of hydrogen and two circuits in parallel, one having a resistance 53 and the other having a similar lamp 54 and the terminals 55, 56 leading to the electric speed indicator.