baber/WOPTO huggingface dataset:
Patent GB-347683-A (GB)
Title: Improvements in or relating to high speed telegraph systems
IPC: H04L1/08
Filed: 1930-01-28
Abstract: 347,683. Type-printing telegraphs. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Jan. 28, 1930, No. 2930. Convention date, March 13, 1929. [Class 100 (iv).] Strip-controlled driving - mechanism.-In an electric telegraph system in which the signal elements are repeated three or more times to minimize the possibility of a wrong signal being recorded on account of atmospherics or fading, a strip perforated according to the repeated transmission is passed through a translating or evaluating device arranged so that the absence and/or introduction of a perforation due to fading and/or atmospherics respectively will not result in a wrong letter being printed. The tape perforated, as, for example, in Fig. 2 (not shown) for the threefold transmission of a single signal is passed through the translating device in which five sets of pins 6, 6<1>, 6<11> can make contact through the tape perforations and an insulating sheet with a conducting plate 8 connected to battery. The pins of each set terminate in resistances r<1>, r<2>, r<3> in parallel, and connected to the coils 1 .. 5 of electromagnets. The constants of the circuits are adjusted so that at least two of the resistances r<1>, r<2>, r<3> must be introduced into the circuit to effect the operation of the corresponding electromagnet. The combination of the electromagnets operated determines the letter to be printed.
Patent GB-666486-A (GB)
Title: Shaker loader
IPC: B65G65/00
Filed: 1948-02-02
Abstract: 666,486. Shaker feeding shovels. JOY MANUFACTURING CO. Feb. 2, 1948. [Feb. 25, 1947] No. 3033/48. Class 78 (i). A shaker feeder for feeding material to a shaker conveyer comprises a material receiving body including a main body portion and a narrower forward or throat portion ; means for reciprocating said body for feeding the material forwardly; means for supporting said body for such reciprocation; and means associated with the body for directing material thereon from the side portions thereof towards the centre thereof as such material is conveyed forwardly characterised in that adjustable means are provided for controlling the rate of discharge of material from the body, the adjustable means being located in the said throat portion of the body. Figs. 1, 6. The feeder is formed of a main body formed of two overlapping plates 12, 13 braced by underneath cross irons 16 and fixed together along their centre line, and the main body is hinged at 18 to the throat portion. The whole is formed with sides as shown to contain the material dumped thereon and is reciprocated on ball-bearing carriages 10 so that the material is fed towards the throat which narrows so as to retard the material so as not to exceed the feed capacity of the shaker conveyer to which it is fed. Top plates 31, 45, prevent spillage and oblique bottom plates 38, 54 prevent dust lodging in corners. Lag plates with corrugations for helping to push the coal are secured to the floor of the feeder. Fig. 4. Retarding plate 60 is pivoted at 62 to the flow of the throat and is adjustably supported at 63 in side holes 64 so as to adjust the flow of coal as required. Fig. 12. The feeder shovel may be made in three parts 81, 82, 84 which are secured rigidly together by bolts 87 (not shown) and 88 and is mounted on ball frames 125, 126, 127, 128, 129 for reciprocation so as to convey coal deposited thereon to discharge at 101 on to a shaker conveyer. Plates 116, 117 direct the material inwards to the throat, and plates 112 obstruct and retard the flow.
Patent GB-1175953-A (GB)
Title: Improvements in and relating to transportable containers.
Inventor: HUSBAND RICHARD WILLIAM
IPC: B65D19/08
Filed: 1968-01-19
Abstract: 1,175,953. Bolts; bolted joints. CORPORACION MINERA DE BOLIVIA. 21 Oct., 1968 [19 Jan., 1968], No. 3058/68. Heading F2H. [Also in Division B8] Bolts used for securing the lid of a container (see Heading B8H), each comprise a head 32 received in a socket 26 attached to the lid and a shank for threaded engagement with the container. The head has a flange 33 which co-operates with a spring clip 34 to render the bolt captive and an upwardly open hole of unconventional shape to receive a tool to turn the bolt.
Patent GB-209311-A (GB)
Title: Improvements in and connected with toilet paper rolls
IPC: A47K10/16
Filed: 1923-02-03
Abstract: 209,311. Carter, E. W. P. Feb. 3, 1923. Paper rolls, facilitating severonce of.-In rolls of toilet paper advertisement slips B are separated from adjacent sheets by a single line of perforations A on one side and by a double line of perforations C on the other side.
Patent GB-310989-A (GB)
Title: Improvements in or relating to aircraft
IPC: B64C9/24
Filed: 1928-02-02
Abstract: 310,989. Thurston, A. P. Feb. 2, 1928. Steering and balancing.-Aircraft with wings having alulas in front of their leading edges are provided with means for varying the effective length of the alulas or of the gaps formed between the alulas and the wings. Fig. 1 shows an alula 1 adapted to be projected towards the tip of the wing in front of a stepped portion 4<a> of the leading edge, the alula having parallel rails running between ball races or rollers 3 in the nose of the wing. Alternatively the alula may be fixed and the gap formed between it and the stepped portion 4<a> varied by a sliding block of the same cross-section as the gap. In another modification two alulas are moved towards or away from one another in a recess formed in the central portion of the leading edge of the wing. Fig. 6 shows two alulas 1 adapted to be moved along two stepped portions of the leading edge of the wing. In all cases the alulas or blocks are adjusted in the same. or opposite senses on the sides of the machine by mechanism described in Specification 180,359. Specification 310,988 is referred to in the Provisional Specification.
Patent GB-1411712-A (GB)
Title: Control for auxiliary power unit
IPC: H02P23/00
Filed: 1973-01-23
Abstract: 1411712 Automatic control of speed UNITED AIRCRAFT CORP 23 Jan 1973 [27 March 1972] 3380/73 Heading G3R [Also in Division F1] The speed of a free turbine in an aircraft auxiliary power unit which drives an alternator and an air compressor is kept constant by varying the fuel supplied to the gas generator and when an overtemperature condition is reached altering the air supplied to the compressor. In the control system shown the speed N2 of the free turbine and the speed N1 of the gas generator turbine shaft are sensed as voltages. The speed of the free turbine is compared with a desired speed value in comparator 32 and passes through proportional plus integral control 34 to generate a desired gas generator speed signal which passes to a least select arrangement when it is checked against a N 1 over temperature limit signal. If the limit is not exceeded the fuel supply to the gas generator is varied to alter its speed N1 to keep the speed N2 constant. If the limit is exceeded a signal is provided to the circuit 46 which causes actuator 22 to re-position the inlet guide vanes and alter the air supply to and thus the load on compressor (18).
Patent GB-913947-A (GB)
Title: Improvements in or relating to control systems for multiple speed transmissions
IPC: F16D67/04
Filed: 1961-01-30
Abstract: 913,947. Change-speed control. FORD MOTOR CO. Ltd. Jan. 30, 1961 [March 10, 1960], No. 3402/61. Class 80 (2). [Also in Group XXXIV] A manually-operated feathering valve which controls the admission of pressure-fluid during starting to a line 150 feeding clutch and brake servos of a change-speed control system which, except for minor modifications, is identical with that described in Specification 866,326, has a dash-pot 202 for retarding the rate of movement of the valve spool 180 and hence the rate of increase of pressure fluid in the line 150. As shown with the valve spool moved manually to the right against a return-spring 234, the line 150 is exhausted at 186, and pressure-fluid supplied at 196 passes through a duct 226 to the dash-pot chamber 204. When the manual control is released the fluid trapped in the chamber 204 leaks slowly away past the valve land 178 to an exhaust port 238 and thus retards leftward movement of the valve spool 180. The valve spool 180 is tapered at 200 so that leftward movement of the spool gradually increases the communication between the pressure-fluid supply port 196 and the line 150. Reference has been directed by the Comptroller to Specification 886,327.
Patent GB-489951-A (GB)
Title: Improvements in or relating to upright pianofortes
IPC: G10C3/02
Filed: 1937-02-05
Abstract: 489,951. Pianofortes; desks ; lighting. CHALLEN & SON, Ltd., C. H., and EVANS, W. Feb. 5, 1937, No. 3470. [Class 88 (ii)] [Also in Groups XI and XIV] An upright pianoforte with fixed key bed has the preferably inclined top-door 12 wholly disposed rearwardly of the forward edges 11 of the side walls both when the instrument is in use and when it is out of use, and movably mounted so that it can be removed or swung out of position to permit attention to the strings or action. The music rest 18 extends across the whole width of the top-door. Lamps 17 are located in the recesses formed between the top-door and the side walls, and may be controlled by a switch operated by movement of the preferably twopart keyboard lid 13. The top-door may be vertical, or partly vertical and partly inclined. British Specification 470,793, and U.S.A. Specification 2,058,001, are referred to.
Patent GB-536126-A (GB)
Title: Improvements in switching arrangements for radio transmission and reception
IPC: H04B1/50
Filed: 1940-02-27
Abstract: 536,126. Wireless transmitting and receiving apparatus. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and PHILLIPS, T. N. D. Feb. 27, 1940, No. 3638. [Class 40 (v)] A switching arrangement for a combined transmitting and receiving system comprises a main switch MS and an auxiliary switch AS operated by the same spindle. The main switch comprises a circle of contact studs 1...12 some of which are interconnected by straps as shown, studs 7, 8, 9 not being used. Studs 1, 2 are connected to a send-receive switch S, connected to the medium-frequency output terminal mot of the transmitter and the corresponding input terminal mit of the receiver. Stud 3 is connected to a send-receiver switch connected to the corresponding high frequency terminals of the transmitter and receiver. Studs 4 and 5 are connected to a fixed aerial FA, stud 6 is connected through an aerial loading condenser C to earth, studs 10, 11 to a trailing aerial TA and stud 12 to earth. The rotor of the main switch comprises two sets of connected brushes 1, 2, 3 and 11, 21 31. The auxiliary switch comprises contacts 1 ... 5 and two rotary contact arms a<SP>1</SP>, a<SP>2</SP> which are connected by wipers w<SP>1</SP>, w<SP>2</SP> respectively to a source of H.T. for the receiver and to a transmitter starting relay controlling the power supply for the transmitter. Contacts 1, 2 are connected to the positive supply terminal of the receiver while contacts 3 ... 5 are connected to the positive low tension terminal of the transmitter. The arrangement is such that as the switches are rotated on the five positions corresponding to contact 1 of the main switch moving to engage successively studs 1 ... 5, the apparatus can be connected for direction finding, for transmitting or receiving on either wave band, or finally to an off position with both aerials connected to earth.
Patent GB-473816-A (GB)
Title: Improvements in rubber mats and the like
IPC: A47L23/24
Filed: 1937-02-08
Abstract: 473,816. Rubber mats. SIEMSS, J. Feb. 8, 1937, No. 3684. Convention date, May 22, 1936. [Class 70] [Also in Group IX] A mat comprises strips of rubber 1, having pointed projections at their upper edges, alternating with plain strips 2 of less depth, clamped on pairs of rods 4 connected to the sides of a frame 5, the length of the rubber strips being such that a space 6 is left between the strips on one pair of rods and those on the adjacent pairs. The strips may be made from old tyre tubes or from new rubber, and may be differently coloured to form a pattern.
Patent GB-711143-A (GB)
Title: Expanded constructional cements and plasters
Inventor: MUMBY WILFRED HUON ACHILLES
IPC: C04B28/04
Filed: 1951-02-16
Abstract: In a process for the production of a set, expanded constructional cement or plaster by the reaction, in situ, of aluminium powder and aqueous mild alkali, the expansion is effected in the presence of less than 1 per cent. by weight of a water-soluble lower aliphatic alcohol, preferably methanol or ethanol.  Ferric oxide and powdered chalk may also be added to promote and enhance the expansion.  When considerable expansion is desired additional lime may be incorporated if the free lime content of Portland cement is insufficient for reaction with the large amount, e.g. 4-8 per cent. of aluminium used. For preformed reinforced structural building units 1/4 to 1/2 per cent. of aluminium based on Portland cement is used and a mixing time of about 2 minutes with the mixing water at 75-80 DEG C. is employed. Alternatively substantial quantities, e.g. 4-6 per cent. of aluminium powder together with ferric oxide and alkali catalyst may be incorporated with Portland cement and the mixing continued for a sufficient time, e.g. 5-8 minutes to degasify the mixture thereby producing a material of density similar to that obtained with only 1/4 to 1/2 per cent. of aluminium but with greatly reduced free lime content and correspondingly improved quality.  Known additives such as do not interfere chemically with the expansion process, e.g. bentonite, pigments, fillers such as cork, asbestos, woodwool, stone, sand, aggregate, sawdust, pumice and crushed concrete, and reinforcements such as steel wire or aluminium or aluminium alloy strip together with gypsum and other plasters and aluminous cements may also be incorporated.  The cement mix may be used in situ or prefabricated and in cases where the lime content is very low may be formed into heat-radiating or surface combustion elements, thus it may be cast about an electric filament.  In an example 20 ozs. of Chinnor cement 0.5 oz. of powdered aluminium and 0.05 oz. of ferric oxide powder are mixed with 350 ml. of water at 75 DEG C. to which has been added to 5 ml. of diluted aqueous mixture formed by adding 6.4 ml. of a 4 per cent. by weight aqueous solution of barium hydroxide or borax through 1 ml. of methanol or ethanol diluted with 20 times its volume of water, and the mixture is worked for 4 minutes.  An expanded concrete of large cell size and a heat regeneration of 2 DEG C. after 5 hours is obtained.
Patent GB-470399-A (GB)
Title: Improvements in and relating to electric immersion heaters
IPC: H05B3/06
Filed: 1936-02-07
Abstract: 470,399. Electric immersion heaters. GENERAL ELECTRIC CO., Ltd., and HUMPHREYS, O. W. Feb. 7, 1936, No. 3800. [Class 39 (iii)] In an electric immersion heater carried by a fixing head 5, the heating element and its surrounding sheath 1 are both mounted on a relatively small member 2 removably attached to the head 5 so that the heating element together with its sheath may be withdrawn from the tank containing liquid to be heated without disturbing the head 5. The members 2 are forced against washers 10 in recesses in the head 5 by rotating nuts 11 on pins 12 which pass through apertures in ears 3 formed on members 2. Liquid-tight joints are thus formed.
Patent GB-1028345-A (GB)
Title: Improvements in or relating to pressure controlling devices
IPC: G05D16/20
Filed: 1963-01-30
Abstract: 1,028,345. Automatic-pressure control systems. CONTINENTAL ELEKTROINDUSTRIE A. G ., [trading as CONTINENTAL ELEKTROINDUSTRIE A.G. ASKANIA-WERK.]. Jan. 30, 1963 [Feb. 7, 1962], No. 3859/63. Heading G3R. In a system for controlling the pressure of a flash steam boiler during starting the control system has a proportional action plus a temperature variable integral action which reduces as the working fluid changes from the water to steam phase. As shown the output pressure of boiler 2 is sensed at P and compared with a standard S. The error signal is amplified at 8 to control a servomotor 9 regulating a value 7 in the recirculation circuit. The movement of the valve is sensed at 14 and fed back through two parallel circuits 17, 16 providing a proportional signal and one that decays with time whereby the regulator action approximates to "proportional and integral". The time-variable feed-back signal is varied by a temperature sensing device T so that it vanishes above a certain temperature.
Patent GB-524745-A (GB)
Title: Improvements in or relating to display and storage cabinets
IPC: A47F5/00
Filed: 1939-02-06
Abstract: 524,745. Cabinets combined with stands. PECK, STOW, & WILCOX CO. Feb. 6, 1939, No. 3846. Convention date, May 25, 1938. [Classes 52 (i) and 52(iii)] A stand has a flat top 1 and flared sides 2, 4, 5 enclosing a storage space accessible by lifting part or the whole of one or more of the sides about hinges at the top edge.
Patent GB-784092-A (GB)
Title: An improved mould for the manufacture of rubber hot water bottles
IPC: B29D22/00
Filed: 1955-02-09
Abstract: 784,092. Moulding rubber hot water bottles. SERRA, J. D. Feb. 9, 1955 [Nov. 23, 1954], No. 3871/55. Class 87(2). A rubber hot water bottle is moulded in a two-part mould 1, 2 having a core 14 which moulds the inner surface of the neck and, by means of a part 15, forms an annular collar 17. The mould parts are shaped to join the layers of rubber at spaced points 11. Latex may be run into the mould through the core 14, and after heating the mould or if the mould is porous, just leaving the mould at rest, the mould is inverted and the excess rubber run out. In a modification, the bottle may be made from sheets of raw rubber with the aid of an expanding agent and by applying mechanical pressure at the neck. Specifications 764,562 [Group XVII] and 777,629 [Group XIII] are referred to.
Patent GB-977406-A (GB)
Title: Catalytic compositions and their use in making maleic anhydride
IPC: B01J27/199
Filed: 1961-02-02
Abstract: In the manufacture of maleic anhydride by the partial oxidation of benzene, there is used a catalyst consisting of or containing 1 part MoO3, 1.5-8 parts V2O5, 0.1-0.01 part P2O5, 0.1-0.01 part Na and 0.1-0001 part Ni. The catalyst is prepared by contacting a catalyst support with a hydrochloric acid solution of precursors and simultaneously agitating the whole, followed by evaporation to dryness at 85-95 DEG C. for 4-7 hours. An example describes the manufacture of maleic anhydride using a vertical reactor tube down which a benzene/air mixture is fed. Specification 853,849 is referred to.ALSO:A catalytic composition containing 1 part MoO3, 1,5-8 parts V2O5, 0,01-0,1 part P2O5, 0,01-0,1 part Na and 0,0001-0,1 part Ni is made by contacting a catalyst support with an impregnating solution, consisting of hydrochloric acid-soluble compounds of vanadium and molybdenum, e.g. metavanadates and molybdates such as ammonium molybdate and metavanadate, and water-soluble compounds of nickel, sodium and phosphorus, e.g. sodium phosphate and nickel nitrate, and simultaneously agitating the catalyst support and impregnating solution and evaporating the solution to dryness at a temperature of from 85-95  DEG C. for from 4-7 hours. Subsequently the catalytic composition may be actuated by heating up to 175  DEG C. for 1 hour at an air flow of 60 litres/hour, 175-320  DEG C. for 1/2 hour at an air flow rate of 0 litres/hour, 320-400  DEG C. for 1/2 hour at an air flow rate of 60 litres/hour and 400  DEG C. for 5 hours at an air flow rate of 60 litres/hour.  Specified catalyst supports are alumina, magnesia, zirconia, mullite and beryllia.  The catalyst support may consist of a refractory support in particulate form of about 0,2-0,5 inch average diameter and having a surface area of 10 sq. metres/gm.  The support particles may receive a preliminary acid wash using for example HCl, HNO3, H2SO4, H3PO4, CH3COOH, CCl3COOH, (COOH)2, C6H5COOH or (CH.COOH)2.  The catalytic composition may be used to synthesize maleic acid from benzene (see Division B2).  An example is given.  Specification 853,849 is referred to.
Patent GB-490590-A (GB)
Title: Method for the production of compact ingots and like workpieces from metals or alloys, especially alloys of aluminium or magnesium, and to a chill mould for carrying out said method
IPC: B22D7/00
Filed: 1938-02-08
Abstract: 490,590. Casting-machines. DURENER METALLWERKE AKT.-GES. Feb. 8, 1938, Nos. 3953 and 3954. Convention dates, Feb. 9, 1937 and June 11, 1937. [Class 83 (i)] Moulds.-In a chill mould 1, for casting an ingot, bar, or sheet of an aluminium or magnesium alloy or other metal, with a vertical slot 2 for the pouring spout 7, this slot is progressively closed by freezing the metal therein by a blast of fluid such as air, carbon-monoxide or dioxide from nozzles 4 which preferably carry the spout, this being provided with a baffle 8. The mould may consist of superposed sections in order to restrict the conduction of heat vertically. The cooling action may be increased by cooling the mould adjacent the slot as by fluid circulating through hollow bars 9, Fig. 3, heat-insulated at 10. As shown, the mould is lowered during pouring but, if desired, the spout and nozzles may be raised.
Patent GB-432915-A (GB)
Title: Improvements in and relating to the purification of aqueous solutions of hydrogen peroxide
IPC: C01B15/013
Filed: 1934-02-06
Abstract: Aqueous solutions of hydrogen peroxide are purified by precipitating stannic hydroxide therein after adjusting the pH of the solution so that a pH of over 1,4 is obtained during precipitation, and removing the precipitate from the solution.  A pH of 2,0--3,5 is preferably maintained during the precipitation.  The precipitation may be effected by adding a soluble tin compound such as stannic chloride or sodium stannate, preferably in the form of an aqueous solution, to the impure hydrogen peroxide, sufficient acid, e.g. sulphuric acid, being then added to adjust the pH value of the solution. Alternatively, the solution may be acidified before adding the soluble tin compound.  If the precipitation of stannic hydroxide tends to be incomplete, a small amount of a soluble substance capable of furnishing polyvalent positive ions may be added to the solution to promote precipitation.  Aluminium compounds, such as aluminium chloride, aluminium sulphate or potash alum, or barium compounds may be thus employed.  The precipitation may be assisted by heating, e.g. up to 80 DEG  C.  Specification 409,361, is referred to.