baber/WOPTO huggingface dataset:
Patent GB-471400-A (GB)
Title: Improvements in paper-making machinery
IPC: D21F1/36
Filed: 1936-11-09
Abstract: 471,400. Fourdrinier paper-making machines. POLLAK, J. E. (Beloit Iron Works) Nov. 9, 1936, No. 30559. [Class 96] The wire-cloth 10 of a Fourdrinier paper-making machine is supported as disclosed in Specification 471,001, and the hydraulic pressure urging the rolls 12 upwardly in their supports is varied in accordance with variations in the load carried by them, including that due to suction on the wire-cloth. Bellows 41, 74, 40 communicate respectively with divisions 19, 20 of the suction box 11, and with the bottom of the pond of pulp in the breast box, and are connected by links and levers as shown, with reducing valves 37, 72 in pipes supplying water to the table-roll bearings 13, the links &c. being adjusted initially by varying the tensions of springs 57, 84 by knurled nuts 59, 87.
Patent GB-733094-A (GB)
Title: Improvements in methods of colouring fabrics for camouflage purposes
IPC: D06P1/00
Filed: 1952-12-02
Abstract: Fabrics of animal, vegetable or synthetic fibres are coloured for camouflage purposes under conditions of direct or indirect viewing by both ordinary and infra-red light, by locally applying to different areas a plurality of colours, each of which is formed of a mixture of pigments and/or vat dyestuffs, the proportions of the ingredients being so selected that the mixtures employed all have a substantially equal degree of absorption for infra-red rays, and preferably the response of all the mixtures to infra-red rays corresponds to a grey tone.  In applying pigment mixtures their resistance to rubbing is increased by first dyeing the fabric all over with a vat, direct or pigment dyestuff, then waterproofing by applying soap and an aluminium salt, then printing the pigments in admixture with a glycerophthalic or acrylic resin and a phthalate plasticizer on the fabric, heating and finally repeatedly coating with a composition comprising a polyvinyl resin, a phthalate plasticizer and a solvent, with intermediate pressing in a fulling mill.  Examples are given.
Patent GB-842747-A (GB)
Title: Improvements in or relating to the detection and indication of individual frequencies of a complex received electromagnetic oscillation
IPC: H04L27/26
Filed: 1957-10-01
Abstract: 842,747. Electric selective signalling systems. BRYANS AEROQUIPMENT Ltd., and SCOTT, A. B. Sept. 15, 1958 [Oct. 1, 1957], No. 30654/57. Class 40 (1). In a digital data transmission system in which to each bit position of a word to be transmitted there corresponds a particular frequency and in which a word is transmitted by transmitting simultaneously a combination of such frequencies corresponding to the 1 bits of the word, the receiver comprises a set of frequencyresponsing devices (one for each possible frequency) to each of which the received combination of frequencies is applied and which, as a result, energize a combination of relays corresponding to the 1 bits of the transmitted word. Each frequency-responsive device, Fig. 2, comprises a triode 30, to which the received signal is applied, a transformer 54 to which is applied a signal of the frequency to which the device is to respond, and a relay R which is energized when the device responds. This circuit has the property that if the input frequency and the frequency applied to transformer 54 are the same the relay R responds except when these two frequencies are out of phase by 90 degrees and to prevent this feature causing errors these circuits are used in pairs, one of the pair having its input shifted in phase by 90 degrees with respect to the other of the pair. In this way at least one of the pairs will respond when the frequency they are set to recognise is received.
Patent GB-398668-A (GB)
Title: Improved process and machine for the manufacture of articles in vibrated concrete
IPC: B28B5/04
Filed: 1932-10-31
Abstract: 398,668. Moulding concrete. ORTROY, F. VAN, 46, Rue de VriÞre, Antwerp, Belgium. Oct. 31, 1932, No. 30670. Convention date, Nov. 12, 1931. [Class 87 (ii).] Endless-chain machines; shaking and jigging machines.-In the manufacture of articles in vibrated concrete, moulds 1 are connected by links to form an endless chain and move round a continuous guide-track formed with a continuously vibrating table 17 over which the moulds are adapted to slide freely. The moulds are filled from a hopper 21 having feeding slides 19, 20 and a feed mouth 12 reciprocated by crank mechanism from a gear 10 on a motor shaft. After vibration, the moulded products are removed by pushing up a slidable bottom of the mould by a pusher 22 operated by a cam 15 and gearing 10, 13, 14. The moulds are formed with lateral projections hearing rollers supported in U-irons 6 forming the track: The moulds may be moved intermittently by a pawl 16 on a rod 7, Fig. 5, engaging a lateral projection and moving the mould over a portion a., b of a guideway 8 wherein the end 9 of the rod 7 slides. The guideway 8 has horizontal portions at different levels so that the pawl is only operative during part of the forward stroke. The rod 7 is reciprocated from a crank disc on the motor shaft. The mould-moving device may be placed on each side of the track and the periods of rest and movement determined by adjusting the length of the rod 7 and the radius of the crank disc. The U-irons on the table 17 are not continuous with those on the main part of the track whereby they may vibrate with the table. A weighted cover may be placed on the concrete during vibration. A second set of feeding, vibrating, and unmoulding devices may be provided on the same track.
Patent GB-230178-A (GB)
Title: Improvements in cranes
IPC: B66C23/20
Filed: 1923-12-06
Abstract: 230,178. Burridge, A. Dec. 6, 1923. Clips, pivoted-jaw.-A stay n for a crane jib is attached to the side wall p of a. vehicle by means of a clip comprising a bar o with lug o<1> resting on the inner side and top of the wall respectively, and a pivoted hook q resting against the outside of the wall.
Patent GB-300634-A (GB)
Title: Improvement in rotating steam generators
IPC: F22B27/12
Filed: 1928-10-24
Abstract: 300,634. Aktiebolaget Atmos. Nov. 17, 1927, [Convention date]. Addition to 285,425. Rotary boilers.-In a boiler having tubes 6, Fig. 2, connected at one or both ends to annular chambers 10, as described in the parent Specification, water is supplied to the tubes through radial pipes opening within the tubes and steam is led off through separate pipes 11. The feedwater enters through a pipe 2 passing through one of the boiler spindles to an end chamber carrying the radial supply pipes, or to a central drum 5 from which the supply tubes project. Steam led into the spindle by the pipes 11 is taken off through a pipe 14 to an outlet 15. The boiler tubes are freely supported at one end by spokes 21 projected from a hub on a boiler spindle. A water-level indicator is connected to a water pipe 27 passing through the steam outlet pipe 14. The spindle bearing at the steam take off end of the boiler is lubricated by water supplied through a pipe 48. In a modification, the steam pipes 11 open into the drum 5 and are arranged inside the radial water pipes 9. Preheated water is supplied to the boiler from a chamber 30, Fig. 5, and the boiler steam is led into an accumulator 34, from which excess water is taken back to the vessel 30 through a pipe 39. The feed valve 44 is controlled in accordance with the flow of steam through the pipe 32 between the boiler and the accumulator. A pipe 46, having a stop valve 47, carries water mixed with sediment from the bottom of the boiler to the accumulator, from which it is blown off. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a modification in which the boiler tubes are inclined. This subject-matter does not appear in the Specification as accepted.
Patent GB-1137216-A (GB)
Title: Improvements in or relating to photographic focusing screen cameras
IPC: G03B17/12
Filed: 1967-07-04
Abstract: 1,137,216. Focusing screen camera. C. KOCH. July 4, 1967 [July 8, 1966], No.30825/67. Heading G2A. A photographic focusing screen camera having an adjustable spacing between the lens mount and the carrier for the focusing screen and the photo-sensitive material, comprises a base supporting the carrier and mount with at least either the carrier or the mount being pivotable about at least one axis lying in the plane 140 or 40 of the mount or carrier respectively, said axis passing at a distance from the centre of the mount or carrier which is less than the distance between the centre of the focusing screen and an edge of the focusing screen parallel and adjacent to the axis. As shown in Fig.4, both the carrier 13 and mount 11 for the lens 12 are pivoted about horizontal axes 20 and 21 by means of joints and levers 26, 27 and 126, 127 respectively. The carrier and the mount are also pivotable about vertical axes which are also nearer to their respective centres than the corresponding edge of the focusing screen 14a is to its centre. The focusing screen 14a is provided with line markings corresponding to the pivot axes. The carrier and mount are movable and fixable on a support 19 and are linked by bellows 16. In other modifications, either the carrier 13 or mount 14 only is pivoted according to the invention, or the carrier 13 is thus mounted and the mount 11 is pivoted about the centre 128 of the lens 12.
Patent GB-409705-A (GB)
Title: Improvements in ear guards for use during hair treatment processes
IPC: A45D44/12
Filed: 1932-11-02
Abstract: 409,705. Ear caps. DENTON, Ltd., J. J., 7, Williamson Square, Liverpool, and HALEWOOD, O. M., 417, Woodchurch Road, Prenton, Birkenhead, Cheshire. Nov. 2, 1932, No. 30844. [Class 81 (ii).] A device for covering the ears during hair treatment to reduce the effect of noise, heat &c., comprises a pair of caps or guards 1, 2 of rubber, vulcanite, or the like, each of which is provided at the back with a loop 6 through which the ends of a spring strip 7 of steel or the like are passed for the purpose of holding the caps against the head of the wearer.
Patent GB-152887-A (GB)
Title: Improved extraction of sulphur from sulphide ores
IPC: C22B1/02
Filed: 1919-12-10
Abstract: 152,887. Pedersen, H. C. Dec. 10, 1919. Sulphur is extracted from iron pyrites and other sulphide ores by roasting with a limited supply of air in the presence of solid carbonaceous material in quantity sufficient to effect complete reduction, within the charge, of the sulphur dioxide produced during roasting but insufficient to effect the reduction of the ore to metal. The process may be carried out in an ordinary pyrites roasting furnace; or in a shaft furnace provided at the bottom with tuyeres, the amount of air introduced being adjusted to the height of the charge column and to the composition of the charge.
Patent GB-921046-A (GB)
Title: Organosiloxane resin compositions
IPC: C08L83/04
Filed: 1959-09-10
Abstract: A siloxane composition curable at room temperature consists essentially of a mixture of (A) 10 to 70% (by weight) of an organopolysiloxane resin containing at least 0,5 mol. per cent of Si-bonded OH or OR groups and a ratio of alkyl and/or aryl radicals to Si within the range of 1:1 to 1,7:1, and (B) 30 to 90% of a filler, and as curing system (C) 1 to 10% of an organosilicon compound free from Si-bonded inorganic acid anionic radicals and containing more than 2 functional atoms or radicals per molecule, and (D) 1 to 10% of a condensation catalyst, the amounts of (C) and (D) being based on the weight of (A)+(B).  The resins (A) may be made by methods as described in Specification 728,202 and U.S.A. Specification 2,842,521.  Other components specified are: fillers (B)-asbestos, mica and quartz meals, vermiculite, diatomaceous earth, precipitated SiO2, ZnO, MgO, Fe2O3, glass frit, fibres and wool, rock wool, metal powders, soot, cork powder and sawdust; basic fillers, such as ZnO and MgO, accelerate the cure; cross-linking agents (C)-alkyl and aryl ortho-and poly-silicates, (RO)mSiH4-m, alkoxy organosiloxanes and organohydrogensiloxanes; and catalysts (D)-tin ricinoleate, cobalt naphthenate, chromacetylacetonate, lead salt of mercaptobenzthiazole, zinc ethylphenyldithiocarbamate, oxides of Hg, Cd and Pb, phenylmercuryacetate, dibutyltindilaurate, triethanolamine, polyethylene imine, boric acid and oleic acid. Pigments, oxidation inhibitors and solvents may also be added. Examples are given.  The surfaces of the compositions may be coated with alkyl titanates to increase the curing rate and to produce harder surfaces.  Uses: For coating surfaces of cement, plaster, metal or wood, with or without priming of the surfaces with alkyl titanates or organosilicon compounds; as fillers or coatings for floors and walls; as street-marking paints and sealants for concrete and bricks; and as acid-resistant coatings in containers.
Patent GB-191706-A (GB)
Title: Improvements in pistons of internal combustion engines
IPC: F16J1/06
Filed: 1922-11-13
Abstract: 191,706. Soc. Anon. des AÚroplanes G. Voisin. Jan. 13, 1922, [Convention date]. Pistons, balancing laterally.-A light alloy or other piston for an internal-combustion engine is provided on the surfaces which take the connecting-rod thrust with flexible segmental plates g, having studs c entering holes in the piston body. The plates may be backed by spring plates h, or may be of greater or less radius of curvature than the cylinder bore, in order to exert a spring action when inserted in the cylinder. In a modification each segment j, Fig. 6, is pressed outwards by springs k housed in pockets in the piston.
Patent GB-351861-A (GB)
IPC: B66D3/04
Filed: 1930-10-17
Abstract: 351,861. Snatch-blocks. STINIS, C. and SCHANS, M. VAN DER, (trading as STINIS, W. C.), Krimpen-an-der-Lek, Holland. Oct. 17, 1930, No. 31100. Convention date, Sept. 16. [Class 78 (v).] A member 9 adapted to carry a hook 10 or other attachment means is turnably and slidably arranged on a bolt 8 mounted in upward extensions 6, 7 of one side of the frame, and is provided with a nose 13 which extends through a slot 12 formed in the other side of the frame.
Patent GB-461554-A (GB)
Title: Improvements in photographic objectives
IPC: G02B13/04
Filed: 1936-11-14
Abstract: 461,554. Lenses. ZEISS, C., [Firm of]. Nov. 14, 1936, No. 31133. Convention date, Nov. 26, 1935. [Class 97 (i)] In a photographic objective for large image fields consisting of three members separated by air, the front member being divergent, the rear and medial members are menisci with concave sides facing the front member and are respectively convergent and divergent, the focal length of the convergent member is numerically at most two-fifths of that of either divergent member, and the distance apart of the front vertices of the first and second members is at least three quarters of the focal length of the whole system. The rear member is a doublet consisting of two lenses of different refractive indices with a convergent cemented surface. The air space between the rear and medial members is less than one tenth of the distance between the front vertices of the front two members. Data are given for the example shown which is spherically corrected for an aperture f /8.
Patent GB-175024-A (GB)
Title: Improvements in or relating to temperature controlling devices for furnace chambers and other apparatus
IPC: G01K5/16
Filed: 1920-11-04
Abstract: 175,024. Freeman, N. H. Nov. 4, 1920 Thermostats.-Relates to temperature-controlling devices for furnaces and like apparatus of the type, such as described in Specification 120,590, in which a holder 11 for fluid, such as air, placed in the furnace controls a movable operating-member, such as a column of mercury 14 in a tube 19 communicating with a mercury container 20, and so regulates the heat supply. An automatic pressure-operated valve is provided communicating between the holder 11 and the surrounding atmosphere so as to act as a safetyvalve in case of undue expansion or contraction of the fluid and also to permit a gradual increase or decrease in the temperature being controlled. In the construction shown, the valve is in the form of a liquid seal, constituted by the liquid 12 in an adjustable tube 16, adapted to close the lower end of a conduit 10 which communicates by a tube 15 with the holder 11. In the normal operation of the apparatus, when a fixed temperature is to be maintained, the holder 11 is heated in the furnace, allowing free expansion of the fluid, until the required temperature is reached. and then the end of the conduit 10 is sealed. The mercury column 14 co-operates with the contact 21 to regulate the heat supply without the seal being effected. In case of any undue expansion in the holder 11, however, the sealing- liquid would be forced out of the conduit 10 and some of the air would escape, instead of mercury being driven out of the tube 19; conversely, if any undue contraction occurred, the sealing- liquid would be sucked up into expanded portions 18 of the tube 10 and more air admitted into the holder 11. instead of mercury being sucked back into the holder. When it is desired to allow a gradual increase in the temperature to be controlled, the level of the sealing-liquid is arranged so that in the " lag " period that occurs between the time at which the mercury column first contacts with the contact 21 and the time at which the expansion reaches its maximum a bubble of air is allowed to escape from the holder 11. The next contact is thus made at a temperature higher than that at which the first contact was made, dependent upon the size of the air bubbles released, and so on. Conversely, bubbles of air can be successively admitted to the holder when a decreasing temperature is required. To facilitate the formation of bubbles, the lower end of the conduit 10 mav be slit or bell-mouthed. or, to regulate the size of the bubbles, the lower end of the conduit 10 may have a slot 24, Fig. 4. co-operating with a rotary sleeve 26 perforated at 27. Specifications 9457/91 and 11308/10 also are referred to.
Patent GB-208543-A (GB)
Title: Improvements in or relating to pumps
IPC: F04B9/04
Filed: 1923-12-12
Abstract: 208,543. Vellino, C. Dec. 13, 1922, [Convention date]. Cam actuated pumps ; double-acting and multipleacting bucket pumps.-The piston is actuated with uniform velocity by means of a heart-shaped cam. The pump may comprise two bucket pistons t, t<1> reciprocated in communicating barrels s, s<1> by a pair of heart-shaped cams p, p<1>. In another form the two buckets work in two separate parallel barrels, and the return stroke is effected by springs or grooved cams. The cams may be shaped as shown in Fig. III. so that, during a short period while the valves are opening, the two pistons move in the same direction.
Patent GB-536955-A (GB)
Title: Improvements in methods of fastening together metal plates and the like
IPC: F16B5/07
Filed: 1939-12-02
Abstract: 536,955. Sheet-metal joints. BECKETT, LAYCOCK & WATKINSON, Ltd., and BUSHNELL, F. B. Dec. 2, 1939, No. 31332. [Class 83 (iv)] Sheet metal members 10, 11 are joined, face to face, by punching out from each sheet a tongue 12, 15 shorter than the hole from which they are severed and bringing these together as shown. The tongues are then pressed flat as shown in Fig. 3. A series of tongues may be used for connecting two section bars 17, 19, Fig. 8, which may hold a glass or other panel 23, and the members connected may be of curved or hoop form.
Patent GB-314081-A (GB)
IPC: C06F1/08
Abstract: 314,081. Kessler, J., and Fischer, G. June 22, 1928, [Convention date]. Matches.-In match-making machines having a supply shoot arranged above collecting receptacles, and along which shoot a table for delivering the matches to the collecting receptacles is guided, the shoot is provided with a closing flap for temporarily holding the matches during a certain part of the operating cycle, the flap being afterwards automatically opened by a plate which is arranged on the table and which then supports the matches. An angle-shaped rail 2, Fig. 1, is secured to the machine 1 and supports three collecting receptacles 3. Above the receptacles is a shoot 5 having three divisions, its upper end being closed by a hinged flap 6 secured to a shaft 7. To this shaft is attached a pulley, not shown, over which passes a cord having a weight so arranged that it tends to keep the flap in a horizontal position. Two rails 10 guide a table 11 carrying a sliding plate 12 controlled by a spring 13. The table is moved by two ropes 16 wound on drums 17, 17<1>, Fig. 4, rotating on a fixed axle 19 and connected by a sleeve 30. A rocking lever 20 on the axle 19 drives a ratchet wheel 22 by means of a pawl 21, a locking pawl 23 being attached to a fixed bracket 24, Fig. 3. The rocking lever 20 is actuated by a rod 32 which co-operates with a slot 20<1> of the lever. The position of the end of the rod 32 in the slot 20' is adjusted by means of a hand wheel 36, screwed rod 34 and link 33. The amplitude of the rocking motion of the lever is thus adjustable. The ratchet wheel 22 is integral with one part 25 of a friction clutch, the other part 26 being slidably keyed to the drum 17 and being pressed into engagement by a spring 27. A hand lever 28 moves the parts out of engagement. One end of a spiral spring 31 is attached to the axle 19 and the other end to the winding drum 17. The matches A are expelled from the dipping bars 37 by the oscillation of needles 38 and are received by the flap 6, which is then in its horizontal position. At a certain point in the cycle the plate 12 slides over the flap 6 under the action of its spring 13, and the table 11 with the plate is lowered with a stepping motion by the ropes 16, thereby swinging down the flap 6. An optical or other signal indicates when the position I is reached, whereon the operator suddenly lowers the table to position II, after having disengaged the coupling 25, 26. The flap 6 is then free to resume its horizontal position and the table 12 is retracted as shown, leaving the matches resting in the receptacles. The plate is retained in its retracted position by the engagement of a lever 14 with a notch therein. The table 11 is then returned to the top of the shoot by the spiral spring 31, a stop 15 acting upon the lever 14 and allowing the plate to be drawn in by its spring 13, the clutch then being re-engaged and the cycle repeated.
Patent GB-679439-A (GB)
Title: Improvements in the production of metal powders and mass cores therefrom
IPC: B22F9/30
Filed: 1950-12-28
Abstract: Metal powder consisting predominantly of particles of at least 10m is produced by decomposition of metal carbonyl vapours in a hot free space by adjusting the throughput of metal carbonyl per unit time so that it is less than the throughput at which powder consisting predominantly of smaller particles is formed.  The temperature of the heated vessel may be 300-400 DEG C and should be lower in the vicinity of the carbonyl inlet than in other parts of the vessel. Production of particles of the desired minimum size is aided by introduction of additional carbonyl vapour at one or more points in the decomposition under increased pressure.  An example is given of the production of iron powder.