baber/WOPTO huggingface dataset:
Patent GB-862771-A (GB)
Title: Process for the flameless combustion of organic substances
IPC: B01J23/26
Filed: 1958-06-20
Abstract: The catalyst in a flameless combustion burner consists of darkly coloured mixed chromium oxides alone or in combination with other oxides, such chromium oxides including (a) higher darkly coloured mixed chromium oxides the oxidation stage of which is between chromium (III) oxide and chromium (VI) oxide, (b) dehydrated amorphous precipitates obtained by precipitating chromium (III) salt solutions with solutions of water - soluble chromates, and (c) chromium-containing complex precipitates obtained by the joint precipitation of chromium (III) salt solutions and solutions of salts of aluminium, iron, manganese, nickel, cobalt, copper or zinc with ammonia or ammonium carbonate and subsequent oxidising dehydration of the complex precipitate. The joint precipitation to obtain complex chromium precipitates may be effected in the presence of carrier substances such as asbestos, kieselguhr, pumice meal or activated morillonite.  The catalyst is prepared by any one of the following methods:-  (1) A thin layer of chromium hydroxide in grain form is heated gradually to 200 DEG C. in an oxidising atmosphere until the hydroxide becomes a brownish black mass.  The mass is then cooled in a dry atmosphere.  (2) A mixed oxide in grain or small tablet form containing 80 parts of chromium hydroxide and 20 parts of iron (III) hydroxide is heated in the open air at a temperature of 200-300 DEG C. until it assumes a deep black colour and is then allowed to cool in a dry atmosphere.  The product is mixed chromium oxide and iron oxide in the ratio of 80 to 20.  A mixed chromium and iron oxide with iron to chromium ratio 50:50 or with 20 parts of chromium oxide to 80 parts of iron oxide may be used.  (3) An aqueous solution containing chromium (III) nitrate and nickel nitrate is precipitated with an aqueous solution of ammonium carbonate to obtain a mass containing basic nickel carbonate and chromium hydroxide, the composition having 50 parts of chromium (III) oxide with 50 parts of nickel (II) oxide. The dried mass in grain form is heated at a temperature of 200-300 DEG C. in air until the colour changes to deep black.  (4) An aqueous paste containing 6 parts chromium hydroxide and 6 parts iron (III) hydroxide is intimately kneaded with 24 parts kieselguhr, shaped, dried and then heated in open air at temperatures of 200-250 DEG C. until a stable dark brown colour is obtained.  Asbestos may be added to the original paste.  A catalyst containing compounds of three metals is similarly prepared. p  (5) An aqueous solution of chromium (III) nitrate and aluminium nitrate is precipitated with an excess of aqueous ammonia to provide a mixed hydroxide which is then heated in air at a temperature of 200-250 DEG C. until it assumes a deep black colour.  (6) An aqueous solution containing chromium (III) nitrate and manganese (II) nitrate is precipitated with an aqueous solution of ammonium carbonate in excess.  The dried mass in granular form is heated in the presence of air at 180-280 DEG C. until it assumes a deep black colour.
Patent GB-633572-A (GB)
Title: Mixing plant
IPC: B28C7/06
Filed: 1947-07-24
Abstract: 633,572. Feeding materials to mixing machines. JOHNSON CO., C. S. July 24, 1947. No. 19944. Convention date, Sept. 18, 1941. [Class 86] A concrete mixing plant comprises a number of concrete-mixing machines each provided with a fixed shoot at the inlet extending inwards towards a common axis of the plant, a hopper containing the concrete aggregate having an outlet or outlets on the common axis and a movable shoot for each mixer designed to interconnect the hopper to the fixed shoot of its mixing-machine. Mixers 10 are arranged facing the common axis A-A of the plant and are provided with shoots 19 mounted on levers 26, 27 to cover the inlets 15 of each mixer. A receiving hopper 17 is arranged below the mixers, and a charging hopper 16 above. Pivoted at 21 to the hopper 16 are tubular shoots 20, one for each mixer, and arranged to connect the outlet of the hopper with the shoot. 19 of each mixer, to enable them to be charged in turn. In the embodiment shown, the shoots 20 are operated by means of pneumatic rams 24. When one of the mixers 10 is tipped to empty, the levers 26, 27 push the shoot 19 upwards out of engagement with the inlet 15. Modifications are described in which the shoots 20 are provided with horizontal flanges which slide in guides to enable the shoots 20 to move laterally instead of pivoting, and in which the shoots 20 telescope into the shoots 19 and are actuated manually by wires and pulleys.
Patent GB-141097-A (GB)
Title: Apparatus for cooling gases
IPC: F28D7/06
Filed: 1918-12-04
Abstract: 141,097. Reavell, J. A., and Kestner Evaporator & Engineering Co. Dec. 4, 1918. U-tube apparatus. -Apparatus for cooling gases comprises one or more chambers d<1>, d<2> fitted with a number of upright U-tubes A of small diameter through which a cooling- liquid circulates, baffles B being located between the limbs of the tubes to cause the gases entering by the inlet d<3> to descend and then ascend in the chambers. The tubes communicate with headers at the top. Means may be provided for tapping the tubes automatically or otherwise to prevent the accumulation of dust.
Patent GB-705094-A (GB)
Title: A sink strainer
IPC: E03C1/264
Filed: 1951-08-24
Abstract: 705,094. Sink strainers. LAMBRETTE, Y. Aug. 7, 1952 [Aug. 24, 1951], No. 20045/51. Class 26 A sink strainer comprises a flat perforated disc or plate 1 arranged to rest on the bottom surface of a sink and to extend outwardly from and around the outlet therein, the plate having a part-spherical or other central depression 2 to fit into the outlet. An edge portion of the plate may be cut away as at 3 so as to lie against or near a side wall of the sink.
Patent GB-1131137-A (GB)
Title: Rolling mill gauge control systems
Inventor: ALSOP CHARLES FRANCIS
IPC: B21B37/66
Filed: 1966-05-06
Abstract: 1,131,137. Automatic control of rolling. DAVY & UNITED INSTRUMENTS Ltd. May 4, 1967 [May 6, 1966], No. 20138/66. Heading G3R. The gap setting of a rolling mill is automatically adjusted in dependence on a combination of signals representing pressure between the rolls and screwdown setting, the former signal being arranged to constitute a predominantly negative feedback at frequencies corresponding to rotation of the rolls and a predominantly positive feedback at lower frequencies. In Fig. 2, load cells 17, responsive to pressure between the rolls of a rolling mill 12, produce signals which are averaged and proportioned at 20 for combination in the appropriate sense at 21 with signals from a potentiometer 16 responsive to the setting of the roll gap adjusting mechanism 15 which may be screws, wedges or, preferably, hydraulic actuators. The resultant signal, which is representative of rolled material thickness, is applied through a low-pass filter 23, 24, 27 for comparison at 25 with desired thickness determined by the setting of a potentiometer 31, so that any error is effective to correct the setting of gap adjusting mechanism 15. An X-ray gauge 30 responsive to the actual thickness of the rolled material provides additional correction. The low-pass filter 23, 24, 27, which is formed by a limiter-integrator feedback circuit, attenuates signals at the higher frequencies corresponding to eccentricity of the rolls which would otherwise be accentuated by their positive feedback effect, and a further path 28 applies a portion of the signals from the load cells 17 in the opposite sense at 25 at all frequencies, so that variations due to eccentricity are corrected. A motor 33 maintains the control signal zero whenever the control system is disabled by operation of a switch 26. The roll gap adjustments at each end of the roll are maintained in step automatically. Modifications involving one or more low or high-pass filters, which may have different selectivities, arranged in the output circuits of load cells 17, potentiometer 16 or circuit 28, are described. Automatic adjustment of the filters or gain in dependence on speed or width of strip is referred to.
Patent GB-135951-A (GB)
Title: Improvements in Electrically Propelled Trucks, Tractors and like Vehicles.
Inventor: MOSSAY PAUL ALPHONSE HUBERT
IPC: B60L11/00
Filed: 1918-12-05
Abstract: 135,951. Mossay, P. A. H. Dec. 5, 1918. Swivelling wheel hubs.-The steering wheels 19 of an electric,ally-propelled platform truck &c. are mounted on bosses 14 on brackets 15 which are pivoted to the front axle 13 and to a tie-bar 35.
Patent GB-334315-A (GB)
Title: Improvements in or relating to the extrusion of metal pipes and the like
IPC: B21C23/30
Filed: 1929-07-01
Abstract: 334,315. Dunsheath, P. July 1, 1929. Squirting.-In the extrusion of lead or its alloys &c. to form a pipe or cable-sheath, molten metal is supplied to the space between two relatively rotatable concentric members h, a, one being provided with impelling parts or surfaces and the other with longitudinal ribs. The member a may be fixed in a lead container d which carries a casing b rotated by gearing g. The member h is mounted in the casing b and has a spiral groove which dies out towards the upper end. The ribs of the member a die out in the same way but later than the spiral. The member a carries a mandrel m which is adjacent to the die k in it's stationary support, j. The member h is cooled by water, oil, or air supplied through a pipe v and passages t. Lead &c. is supplied from a heated tank n to the container d which is heated by burners o so that the lead entering between the parts a, h is about 5‹ or 10‹ F. above its melting point.
Patent GB-633962-A (GB)
Title: Improvements in coin-freed hair drying apparatus
IPC: A45D20/16
Filed: 1947-07-28
Abstract: 633,962. Coin-freed apparatus. SMITH, S. July 28, 1947, No. 20208. [Class 27] In apparatus delivering hot air for drying the hair, the period of use allowed for each coin inserted is determined by a. geared escapement f controlling downward movement of a weighted rod f<SP>1</SP> and connected therewith through a ratchet and pawl so as to allow upward resetting movement of the rod. An inserted coin h comes to rest beneath a slotted plate g<SP>2</SP> on a lever g connected with the rod f<SP>1</SP> and forms a connecting abutment between the lever g and the nose k4 of a hand lever k. On now depressing the hand lever, the lever g is lifted to raise the rod f<SP>1</SP> and close contacts i to prepare the circuit of the fan band heater c, the circuit being completed at further contacts l when the hand lever k is released and returned by a spring k<SP>3</SP>. When the weighted rod f<SP>1</SP> has returned under the control of the escapement f, the circuit is broken again at contacts i. Specification 487,425 is referred to.
Patent GB-1172358-A (GB)
Title: Method for the manufacture of Cord
Inventor: GOY RONALD STANSFIELD
IPC: D02G3/28
Filed: 1966-05-07
Abstract: 1,172,358. Twisting yarns, cord. DUNLOP CO. Ltd. 4 May, 1967 [7 May, 1966], No. 20307/66. Headings DID, D1F, D1T and D1W. Cord is made by passing an untwisted continuous filament yarn 9 and an initially twisted continuous filament yarn 11 together through a hollow rotating spindle 1. The resulting cord 12 is drawn off at a rate less than the rate of supply of the untwisted yarn 9. The untwisted yarn 11 is carried on the hollow spindle, the rotation of which causes the yarn 11 to unwind and become doubled with the yarn 11. Preferably the spindle is rotated at speeds up to 9,000 r.p.m. The rate of supply of the untwisted yarn 9 can be a constant ratio to the rate of which cord is drawn off. Preferably the doubling step removes the initial twist from the yarn 11, although predetermined amounts of residual twist can be allowed to remain if desired. The yarns in the resulting cord 12 are preferably both untwisted but have a helical arrangement. Yarns 9 and 11 can each be a monofilament or multifilament or made from a split film tape. The yarns can be made of rayon, nylon, polyethylene terephthalate or polypropylene. A mixture of thermoplastic and non-thermoplastic yarns can be used. The cord produced can be immediately heat-set in a fluidised bed, e.g. glass particles at 250C. The cord can be dyed,- coated or rubberised for use as a type cord.
Patent GB-1219823-A (GB)
Title: Method and system for automatic seismic reflection picking
IPC: G01V1/30
Filed: 1968-04-30
Abstract: 1,219,823. Seismic signal processing. TEXAS INSTRUMENTS Inc. 30 April, 1968 [13 June, 1967], No. 20378/68. Heading H4D. A system is provided for selecting automatically those seismic events which can be followed from one trace to an adjacent trace of a seismogram. Field procedure.-Shots are fired into the centres of geophone spreads at a plurality of points along a traverse to provide a set of multi-trace seismograms digitally recorded on magnetic tape. Signal processing.-The field records are played back, subjected to static and normal moveout error corrections, then stored on a drum from which they are fed to a unit which produces a spike signal for each peak (or trough) on the traces. The spike signals represent seismic " events " and are stored on a further drum. Events are followed from trace to trace by selecting an event at time t I-1  on one trace I - 1 and looking for it on the adjacent trace I in a time gate which is centred on the estimated event time t 1  and which has a width 2# proportional to the mean separation of the spike signals for trace I in the time zone concerned. If more than one event is found in the search, the one nearest to the estimated time is selected. If no event is found the event t I-1  is rejected as spurious. The time t I  of an event found and the time t I-1  are used to estimate the event time for the next trace I + 1 and a similar search is made on trace I + 1. If an event is found, the event time t I+1  and the times t I , t I-1  are used to estimate, on a least mean squares fit basis, the event time on the next trace. This search procedure is repeated on further traces until the event can no longer be followed, then searches are made for other events occurring on two or more traces. Events thus found are allotted " grades " G; equal to n#A i , where n is the number of traces across which an event i can be followed and #A i  is the mean amplitude of the event i spike signals across those traces. This particular grading rates weak events occurring across a large number of traces as significant as strong events occurring across a few traces. An average value A, of the amplitudes of all events occurring on all traces within a selected time zone is derived and used as a threshold value in the plotting of graded seismograms. Such seismograms are produced by emphasizing or plotting only those events whose individual grades G i  exceed the product X.A r , where X is a factor which can be varied to produce different graded displays, e.g. if X is large only strong events will be emphasized or plotted. A r  is a function of record time and takes into account the increasing attenuation of seismic signal amplitude with record time. The signal processing may be done by digital computer and a flow chart for such processing is given.
Patent GB-1169600-A (GB)
Title: Dyes of the Diaminotriarylmethane Series, their production and use
Inventor: BITTERLI PETER
IPC: C09B11/12
Filed: 1967-05-02
Abstract: 1,169,600. Triphenylmethane derivatives. SANDOZ Ltd. 2 May, 1967 [10 May, 1966], No. 20381/67. Heading C2C. [Also in Division C4] 2,2<SP>1</SP> - Dimethyl - 4,4<SP>1</SP> - di - [N,N - di - (#- cyanoethyl) - amino] triphenylmethane - 4<SP>11</SP>- sulphonamide is prepared by reacting 1-N,N-di- (# - cyanoethyl) amino - 3 - methylbenzene either with benzaldehyde-4-sulphonic acid amide or with benzaldehyde followed by treatment with chlorosulphonic acid and thionyl chloride and subsequently ammonia.
Patent GB-937498-A (GB)
Title: Stays for casements and opening fanlights
IPC: E05C17/18
Filed: 1960-06-10
Abstract: 937,498. Stays. E. HOLDEN & CO. (B'HAM) Ltd., and E. J. HOLDEN. June 12, 1961 [June 10, 1960], No. 20405/60. Class 65 (1). A casement stay 16 is slidably mounted on its pivot 11 and is urged by resilient means 13 into engagement with the head 113 of the pivot, the bearing eye 101 of the stay being provided with a clearance mounting relatively to the pivot which permits a limited torsional movement of the stay against the resistance afforded by the resilient means in addition to the normal pivoting movement to allow for minor inaccuracies in the setting of the pin (not shown) with which the stay co-operates. The resilient means may be a spring or a tapered sleeve of material such as rubber or nylon. The bearing eye 101 may have a shallow annular bearing surface 102 or an annular knife edge.
Patent GB-427466-A (GB)
Title: Process for the manufacture of steel
IPC: C21C7/076
Filed: 1933-07-19
Abstract: In a process for dephosphorizing steel which is relatively poor in phosphorus, and containing a quantity of oxide sufficient to bind the phosphorus, the molten steel is intermixed with a molten sufficiently fluid basic non-reducing slag which contains very little or no oxidizing agent with such violence that an emulsion-like and turbulent mixture of metal and slag is produced. The process may be carried out as described in Specification 405,633, and the slag used comprises mainly lime and magnesia with the addition of fluxes such as spar alumina, soda, &c. and contains a minimum of silica.  A slag comprising 17 per cent of silica, 8,32 of alumina and the remainder lime and magnesia is referred to.
Patent GB-793500-A (GB)
Title: Rock gouge attachment for dozers
IPC: E02F3/815
Filed: 1956-07-02
Abstract: 793,500. Scarifiers. AARON, M. E. July 2, 1956, No. 20468/56. Class 107  A rock gouge comprises a shank 1 with a forwardly projecting tooth portion 4. A hook 9 adjustaibly carried on the shank engages over the mouldboard of a bulldozer blade and the bottom part of the blade engages a sill 11 so that the tooth locks thereon.
Patent GB-175935-A (GB)
Title: Improvements in and relating to line-throwing guns
IPC: F41A27/24
Filed: 1921-08-02
Abstract: 175,935. Alexander, A. E., (Steward Davit & Equipment Corporation). Aug. 2, 1921. Mountings. - A carriage A for a linethrowing gun B has lowlying rear cheeks a<1> to receive the gun trunnions b<1>, and uprights a<2> provided with a series of holes a<5> to receive a bolt C which passes also through holes b<5> in a band b<2> embracing the gun. The arrangement serves to fix the gun at the desired elevation or to hold the gun when folded against the carriage.
Patent GB-303728-A (GB)
Title: Wind motor
IPC: F03D3/06
Filed: 1928-07-16
Abstract: 303,728. Langseth, J. July 16, 1928. Current motors.-In a wind motor the feathering movement of the vanes 1, which are pivoted at 2 to a rotating frame, is controlled by stays 4 which may be released by hand gear, or automatically. When some of the stays are released, as shown in Fig. 2, the corresponding vanes move outwardly under the action of centrifugal force and exert a braking action. When all of the stays are released, the vanes move into the direction of the wind, and the wind motor remains stationary. The stays 4 pass over guide wheels 5 on the rotary frame 3, Fig. 6 to a pulley which is normally locked by a pawl and ratchet device 13, 16. When it is desired to release a vane, the corresponding pawl 16 is tripped by lifting a rod 18 by a lever 19 and handle 20. Bevel and belt gearing for transmitting the power from the main shaft is shown. The apparatus may be operated by a water current.
Patent GB-205814-A (GB)
Abstract: 205,814. Ateliers H. CuÚnod Soc. Anon. Oct. 19,1922, [Convention date]. Liquid fuel supply.-In a heating installation comprising one or more boilers heated by liquid.fuel burners from which fuel is delivered by compressed air, the burners are regulated by controlling the supply of compressed air to them in accordance with variations in the temperature of the water from the boiler or boilers. In the event of a burner being extinguished, the fall of temperature in the vicinity of the burner acts through an air thermometer and pressure gauge to shut off the compressed air supply to the burners. The burners may be of the kind described in Specification 201,167. Liquid fuel is supplied by a tank 20, Fig. 1, to a receptacle 18, where it is maintained at constant level, the receptacle being connected by a pipe 22 to reservoirs 19 from which the burners 11 draw their supply through tubes 14. Compressed air is supplied by a fan or the like 23 to the burners through the main 24 and branch pipes 13 in each of which is located a valve 25, which is operated to shut off the air supply should the burner flame be extinguished, and a main air supply valve operated by the variation of temperature of the water supplied by the boiler to a chamber containing an air thermometer 39, Fig. 2. The valves regulating the air supply to the burners are operated simultaneously by a sprocket chain 16 engaging with sprocket wheels 15 on the valve spindles and also a sprocket wheel on a shaft 52 on which is also mounted a toothed wheel 28 adapted to be rotated by one or the other of two pawls 30 pivoted on a rocking member 29 driven from a motor through a shaft 41, crank 42 and connecting-rod 43. Variation of pressure in the air thermometer 39 due to changes of temperature of the water from the boiler or boilers is communicated through a pipe 38 to an accordian type expansible chamber 35 which acts through a, lever 37 upon a lever 31 provided at one end 32 with an abutting member adapted to disengage one or other of the pawls 30 and allow it to engage with the notches of the wheel 28 and cause its rotation. The Lever 31 is maintained in contact with the lever 37 by a spring 36 the tension of which may be adjusted. The shaft 52 also carries a toothed wheel 53 .adapted to engage a toothed sector 44 mounted on a lever 45 connected by a rod 46 and spring 48 to the arm 31. An air thermometer comprising a chamber 56 arranged near the burner and communicating by a pipe 55 and chamber 57 with a pressure gauge 59 causes, in the event of the burner being extinguished, a catch 60 to release a counter-weighted arm 26 on the valve spindle 25 and close the valve controlling the compressed air supplied through the pipe 13 to the burner. The air thermometer 56 may be arranged to control the fan motor or to control the supply of fuel to each burner in any convenient manner. Where heavy fuel is employed it may be heated by steam or electricity.
Patent GB-798796-A (GB)
Title: Method of and machine for making shell moulds
Inventor: WILLETTS ERNEST RONALD BALMFOR
IPC: B22C23/00
Filed: 1955-07-15
Abstract: 798,796. Moulding-machines. INDUSTRIAL FOUNDRY MATERIALS, Ltd. June 11, 1956 [July 15, 1955], No. 20595/55. Class 83 (1). In a shell-moulding process, moulding material is forced upwardly from a container on to the pattern or core-box by the pressure of a compressed gas applied directly to the moulding material from below, and the pressure is afterwards removed so that the unused material is caused to fall back into the container, thereby creating a region of reduced pressure in the vicinity of the pattern plate and causing any surplus moulding material to be removed from the pattern plate and sucked back into the container. Core-boxes are mounted on a plate 15 and moulding mix 17 blown from a container 12 by compressed air supplied through a nozzle 21. In an alternative arrangement there are two cylinders 12, so that one may be in use while the operator attends to the other. An angle head attachment, Fig. 2, is used when moulding, e.g. hollow cores, to avoid long horizontal surfaces.