baber/WOPTO huggingface dataset:
Patent GB-189693-A (GB)
Title: Improvements in wireless telegraph receivers
IPC: H04H20/77
Filed: 1922-02-08
Abstract: 189,693. Turner, L. S. Feb. 8, 1922. Multiplex signalling; thermionic amplifiers; atmospherics, limiting.-A single antenna A is connected to a plurality of differently-tuned receiving circuits #<1>, #<2>, #<3> through an equal number of triodes T<1>, T<2>, T<3>, each of the circuits being adjustable without affecting the currents in the antenna. The grids of the triodes are connected across the antenna, as shown. The oscillatory plate circuits #<1>, #<2>, #<3> have preferably no mutual coupling, but are linked to separate detector circuits for receiving simultaneously a number of signals on different wave-lengths. They may be variously distuned from the desired signal in order to lessen the effect of atmospherics. The aerial should be of large effective height, and may be suitably aperiodic; or it may be more or less tuned to one or other of the wavelengths concerned, or to some intermediate wave-length. The electrostatic reaction between the. grids and plates of the triodes may be balanced out by the method described in Specification 189,645.
Patent GB-326181-A (GB)
Title: Apparatus for use in dropping from aircraft smoke-producing devices for indicating ground wind
IPC: B64D1/02
Filed: 1928-11-01
Abstract: 326,181. Armour, J. Nov. 1, 1928. Divided on 326,161, [Class 118 (ii), Signals]. Dropping bombs from a height.-For dropping from aircraft non-explosive smoke-producing bombs, such as are described in Specification 326,161, [Class 118 (ii), Signals], for ground wind indication, an apparatus is provided comprising a housing for a number of bombs and a single movable bottom adapted to release one bomb at a time. In Fig. 1, the housing a is divided by partitions b into compartments each containing a single bomb n. The top of the housing is closed by a lid c and the bottom by a single sliding shutter f worked by a Bowden wire k, so as to open one compartment and thereby drop one bomb at a time. A spring u may be fitted above each bomb to help its discharge. In Fig. 2, the bombs n<1> are horizontally plac.ed one above the other in the housing, and are released one at a time by the tilting or rocking of the bottom 14 about end pivots 5, 5 by means of a sprocket wheel 7 and a chain 8 attached at one end to a spring 9 and at the other end to a Bowden wire k. The Bowden wire k in either case leads to a handle l within reach of the pilot.
Patent GB-1491097-A (GB)
Title: Recirculating-ball mechanism
IPC: F16C29/06
Filed: 1975-01-28
Abstract: 1491097 Rectilinear motion bearings SKF INDUSTRIAL TRADING & DEVELOPMENT CO BV 28 Jan 1975 [8 Feb 1974] 3709/75 Heading F2A A cage for a recirculating ball mechanism has longitudinal webs 2 and end rings 3 which define apertures in which strip steel inserts 4 are located. Each insert 4 comprises radially inner portion 9 and radially outer portion 8 joined by web 11. On the radially outer surface of inner portion 9 is a raceway 10 for balls in a first portion of an endless path in which the balls are not subjected to load, while on the radially inner surface of outer portion 8 is a raceway 6 for balls on a second portion of an endless path in which the balls are subjected to load. The balls recirculate between first and second portions by means of reversing portion 7. The cage is suitably of resilient material, e.g. plastics, so that the balls can be forced into the aperture between the cage and web 11. Variant crosssections of insert are described.
Patent GB-1067557-A (GB)
Title: Improvements in or relating to automatic control apparatus for hydrostatic fan drives
IPC: F01P7/04
Filed: 1965-01-27
Abstract: 1,067,557. Hydrostatic transmissions. METALLWERK GLOCKERAU G.m.b.H. Jan. 27, 1965 [Jan. 28, 1964], No. 3713/65. Heading F2D. An hydrostatic drive for an engine-cooling fan 3 includes a variable-capacity pump 1 and a fixed capacity motor 2, the pump setting being adjustable by a piston 4 actuated by a servo-valve 6 under the joint control of the pump delivery pressure and a thermostat 7. Pressure connections are made from the pump output line to the left-hand end of the valve cylinder and to the space between the lands of valve 6. The pressure connection to piston 4 is controlled by the right-hand land of valve 6, the exhaust connection being made through a restriction 10. A relief valve 9 is fitted in the pump delivery line. A spring 8 is fitted between valve 6 and thermostat 7, the valve being moved to the right against the spring if the pump pressure rises, to open communication to the piston 4 and thus adjust the pump setting to reduce output. A second embodiment includes a pressure-limiting valve 11 and pilot valve 12 to reduce pressure peaks in operation.
Patent GB-495107-A (GB)
Title: Process for the emulsifying or mixing of liquid or viscous substances and apparatus therefor
IPC: B01F7/00
Filed: 1937-02-09
Abstract: <PICT:0495107/III/1> Materials, e.g. containing oils, syrups, or molten waxes are emulsified by being thrown by means of a high-speed rotating member against a surface from which it rebounds in a clearance space between the rotating member and the surface in a state of turbulence and simultaneously sheared by edges moving parallel with the said surface.  Suitable apparatus comprises a rotor 5 fitted with helicoidal blades 6 co-operating with the casing 1. The ends 8 and 9 of the rotor are of conical form to provide suitable feed and outlet chambers.  The materials are fed in through inlet pipe 3, and supplementary inlet 3a if desired, and are withdrawn at outlet 4.  Valves may be used on the inlet and outlet pipes to regulate the flow.  The rotor 5 may rotate at speeds of about 3000 revs./min.  Specification 490,208 is referred to.
Patent GB-500397-A (GB)
Title: Mechanism for converting rotary movement into reciprocating and oscillating movements
IPC: D06F13/00
Filed: 1937-08-17
Abstract: 500,397. Converting rotary into reciprocating motion; washing - machines. VANTHUYNE, G. Aug. 17, 1937, No. 3838/38. Divided out of 481,263, [Group VIII]. [Class 80 (iii)] [Also in Group VIIII] A continuously rotating shaft 2 has, at one end, adiametral pin 7 forming a pivot for a crank 6 the free end of which has a spherical bearing for the ball end 8 of an arm 11<1> on a collar 11 secured to a shaft 1. This shaft is at right-angles to the shaft 2 and may carry at its lower end a beater or plate 12 and blades 14 of a washing machine. As shown, the ball 8 is equidistant from the centres of the shafts 1, 2, but the distances may be varied. For a revolution of the shaft 2, the shaft 1 is first rotated, then moved down, then rotated, moved up and rotated again.
Patent GB-943537-A (GB)
Title: Improvements in or relating to display stands
Inventor: LEES ERIC
IPC: A47F5/11
Filed: 1960-02-03
Abstract: 943,537. Display stands. HUGH STEVENSON & SON Ltd. Feb. 2,1961 [Feb. 3, 1960], No. 3918/60. Heading G5C. A self supporting display stand having at least one recessed compartment, see Fig. 3 (not shown), is constructed from two blanks cut and scored as shown, the blank of Fig. 1 defining the front 3 and sides 4 of the stand whilst the blank of Fig. 2 provides a back 23 and a compartment base 17 therefor. The blanks are made of double backed corrugated paper, single thickness cardboard or fibreboard.
Patent GB-510889-A (GB)
Title: Improvements in and relating to the production of nitrous oxide
IPC: C01B21/22
Filed: 1938-02-09
Abstract: 510,889. Nitrous oxide. IMPERIAL CHEMICAL INDUSTRIES, Ltd. (Du Pont de Nemours & Co., E. I.). Feb. 9,1938, No. 4094. [Class 1 (ii)] Nitrous cxide is obtained by heating ammonium nitrate to its decomposition temperature in the presence of a solid compound of phosphorus, arsenic, molybdenum, silver or manganese in proportion sufficient to maintain the presence of a small ratio of the compound to the ammonium nitrate. The compound is preferably present in amounts between 0.001 and 2 per cent. by weight. The compounds specified are ortho-phosphoric acid, ammonium dihydrogen orthophosphate, ammonium metaphosphate, diammonium pyrophosphate, trisodium phosphate, disodium phosphate, monopotassium phosphate, barium pyrophosphate, barium hypophosphate, calcium metaphosphate, calcium hypophosphate, calcium pyrophosphate, magnesium acid orthophosphate, phosphorus pentoxide, phosphorus trioxide, iron phosphate, cobalt phosphate, phosphomolybdic acid, ammonium molybdate, arsenous oxide, arsenic oxide, arsenic acid, arsenous acid, sodium arsenite, sodium arsenate, potassium arsenate, ammonium arsenite, calcium arsenate, silver nitrate, and manganous nitrate. Preferably the reaction is conducted so as to maintain a constant ratio between the ammonium nitrate being decomposed and the amount of catalyst present, e.g., by starting with a mixture containing a given amount of catalyst and adding fresh ammonium nitrate continuously or intermittently at the same rate as that at which it is decomposed. The ammonium nitrate may be added in either the solid or molten condition. The ammonium nitrate may be replaced by a mixture of sodium nitrate and ammonium sulphate.
Patent GB-524827-A (GB)
Title: Improvements in and relating to water heaters
IPC: F24H9/00
Filed: 1939-02-08
Abstract: 524,827. Delivery arrangements for water heaters. GENERAL ELECTRIC CO., Ltd., HARVEY, R., and HUMPHREYS, O. W. Feb. 8, 1939, No. 4149. [Class 64 (i)] To prevent furring at the inner end of a siphon outlet, the outlet pipe 1, which has an outer " swanneck extension and is adapted to be rotated in a fixed sleeve 2, is provided with scrapers 6, 10, which, when the outlet is turned, move over the end of the pipe and over the inner surface of the siphon cap 9. The scraper arms 6 are secured to a head 5 screwed on the end of the outlet pipe and contact with the surface of a collar 8 at the top of the fixed sleeve 2. The cap 9 is secured to the head 5 and the scrapers 10 are brazed and clamped to the sleeve 2.
Patent GB-1490031-A (GB)
Title: Pulse suppressing circuit arrangements and equipment incorporating the same
IPC: H04L25/08
Filed: 1975-01-30
Abstract: 1490031 Data transmission; suppression of spurious pulses NIXDORF COMPUTER AG 30 Jan 1975 [7 March 1974] 4157/75 Headings H4P and H3P A noise or disturbance suppression circuit comprises the steps of coupling or combining warning signal pulses, or pulses derived therefrom, with the output of a pulse generator, e.g. monostable circuit triggered by increasing pulse edge of one polarity the time constant of which is less than the useful signal pulse length and greater than undesired signal pulse length and repeating such coupling under the control of increasing signal edges of other polarity of transition. A stage may comprise inverters 31, 32 priming a NAND gate 34 also receiving an input from monostable circuit 33 of the same polarity as incoming signals. In Fig. 3 two stages I, II are cascaded with input and output through inverters so that pulse transition direction to 33 is opposite to that of 37. The monostable circuits are only triggered by negative going transition (to give a 0 output) hence when a positive going noise pulse producing a gap occurs at A, monostable output is changed preventing change of NAND output due to change in direct pulse through inverters. An arrangement which suppresses additional pulses as well as those producing gaps is described in connection with Fig. 5 (not shown) and comprises pairs of stages (52, 53) coupled by an inverter (54). Stage (53) eliminates spurious pulses which appear in gaps between signal pulses (see Fig. 6, not shown). Output signals will be delayed by twice the transit time of one stage. An arrangement is described in connection with Fig. 7 (not shown) for suppressing disturbances of differing polarities and Fig. 9 (also not shown) illustrates an adaptation to effect limitation of transmission speed of signals.
Patent GB-975701-A (GB)
Title: Polypropylene compositions
IPC: C08L33/26
Filed: 1961-02-03
Abstract: Polypropylene is modified with amorphous polymers of vinyl pyridine(s) or derivative(s) thereof \sB N-substituted acrylamide(s) \sB ethylenically unsaturated monomers (in particular styrene, vinyl acetate, acrylonitrile, ethyl fumarate, butadiene, vinyl pyrrolidine, vinyl chloride or vinylidine chloride).  The compositions are of excellent dye affinity and stability and may be spun into fibres and formed into blankets, seat covers and hawsers.
Patent GB-900908-A (GB)
Title: Apparatus for use in treatment of the first toe joint
IPC: A63B23/10
Filed: 1960-02-05
Abstract: 900,908. Toe - straightening appliances. LABORATORIES FOR APPLIED BIOLOGY Ltd., and MACDONALD, J. G. May 5, 1961 [Feb. 5, 1960], No. 4172/60. Class 81 (2). An appliance for exercising and straightening the great toes comprises a V-shaped member 10 with loops of tape 14 to receive the toes. The member 10 is preferably made from resilient synthetic resin material and each limb has two holes 11, 12 so that a single length of tape 14 can be threaded through them and the ends brought together through a rubber ring 15, in order to adjust the size of the loops.
Patent GB-1269193-A (GB)
Title: Information indicating system
Inventor: REEVES RODNEY CARLTON
IPC: G08B5/22
Filed: 1969-01-23
Abstract: 1269193 Display apparatus BECKETT LAYCOCK & WATKINSON Ltd 28 Jan 1970 [23 Jan 1969] 4181/70 Divided out of 1267205 Headings G4H 1A 1D 2A 3A 4A 4B 4E 5A 5D 5E 5X 6B 6D 6E 7B 7G 8E 9F 14A 14B 14D and 14F A scroll or blind as in the Specification 1267205 is operated in a similar manner and by a similar electric circuit, the electrical pulses from the transmitter being fed to a comparator 120, arranged to compare the number of pulses transmitted with a number previously fed to and stored in the comparator, the movement of the blind being stopped when the numbers are equal. In this arrangement the operator turns a knob 52 to turn an indicator scroll 50, bringing into view a character corresponding to the item on the blind which it is desired to be displayed at the main window (not shown). In doing this, switch S3 is closed, and a number of pulses are caused to be fed to the comparator, equal to the number of pulses that will be fed to the comparator under the action of strips (19), (20) &c. Fig.2 (not shown) as the blind moves to its desired position. The switch 10 is now operated to set the blind in motion as in the parent Specification, and allowed to return to its neutral position. The blind is not stopped by the action of strips 13 opening switch R1/1 since this switch is short-circuited by switch S3. However, when the number of pulses received by the comparator is equal to that previously set up by knob 52, switch S3 is caused to open, and the blind is free to be stopped by switch R1/1 opening. Before the comparator is set up, a knob 53 is turned to an appropriate "forward" or "reverse" position which restricts the movements of scroll 50 to the correct direction and causes one of the switches S1, S2 to close ensuring that the main blind can also move only in this direction. The comparator may be of the stepping relay, or uniselector type.
Patent GB-472298-A (GB)
Title: Improvements in oil fired furnaces for steam locomotives and the like
IPC: F23D99/00
Filed: 1937-02-12
Abstract: 472,298. Liquid - fuel furnaces. SPRENGER, E. Feb. 12, 1937, No. 4206. [Class 51 (i)] In an oil-fired furnace for steam locomotives and the like air for combustion is heated by passing it over loose refractory material and the air supply to burners mounted on the fire door is controlled in accordance with the draught and air supply. As shown in Fig. 1, air for combustion passes from a chamber 5 to the fire-box through layers of firebrick balls 4. Dampers 7, operated by hand; control the admission of air to the chamber 3. Air entering the chamber 5 deflects more or less counterweighted flaps 8 interconnected by a rod 11 and connected by a system of rods and levers 12 ... 17 to a shaft 29, Fig. 2, provided with an eccentric 30 embraced by eccentric straps 31 which actuate valves 32 controlling the supply of oil from the chamber 19 to the burners 3. The shaft 29 is also actuated in accordance with the exhaust steam pressure and the pressure of steam jets from a blower pipe. For this purpose, exhaust steam from the blast pipe 45 and steam from the blower 59 act respectively on plate 48 and cone 60 and transmit motion through lever 52 and a system of rods and levers 53 ... 58 to the shaft 29. Additional burners 44 may be arranged at the rear of the fire-box and the oil supply may be heated by steam in multitubular apparatus.
Patent GB-1128377-A (GB)
Title: Improvements relating to aircraft fuel supply arrangements
Inventor: WOTTON JOHN
IPC: B64D37/14
Filed: 1966-01-31
Abstract: 1,128,377. Aircraft fuel tanks. BRITISH AIRCRAFT CORP. (OPERATING) Ltd. 25 Jan., 1967 [31 Jan., 1966], No. 4247/66. Headings B7G and B7W. An aircraft has in each wing 12, 12<SP>1</SP> at least two fuel tanks 13, 14, 15, 13<SP>1</SP>, 14<SP>1</SP>, 15<SP>1</SP>, the outboard tanks 15, 15<SP>1</SP> being further aft than the inboard tanks 13, 13<SP>1</SP>, wherein fuel supply system (e.g. including pumps 20, 20<SP>1</SP> and a collector tank 22) is arranged to supply the engines 11 with fuel drawn from the outboard tanks 15, 15<SP>1</SP>, there being means (e.g. pressurization due to ram air at 24) to simultaneously replenish the outboard tanks 15, 15<SP>1</SP> with fuel from the inboard tanks 13, 14, 13<SP>1</SP>, 14<SP>1</SP> so that the aircraft e.g. moves aft as fuel is consumed. There is also a tank 30 in the tail fin from which fuel is fed to the engines 11 to check the e.g. movement, the flow being controlled by a valve 32 controlled by a tailplane 41 which may also by valves 181, 251 control the pressurization of the tanks 13, 13<SP>1</SP> &c. There may also be an altitude controlled on-off valve 40. The tanks may be vented at 251 and also be fitted with overwing filling points 27, 27<SP>1</SP> and pressure refuelling points 28. Fuel may be jettisoned through valves 26 due to the tank pressurization.
Patent GB-1388781-A (GB)
Title: Cement additive
IPC: C04B22/00
Filed: 1973-01-29
Abstract: 1388781 Cement compositions DENKI KAGAKU KOGYO KK 29 Jan 1973 [28 Jan 1972] 4417/73 Heading C1H A cement additive comprises 20-90% calcium sulphate and 10-80% calcium fluoroaluminate. It acts as an expansive agent and its effect can be regulated by varying the proportions, and also as an accelerator, particularly if Ca(OH) 2  or Na 2 Co 3  is also present, or its size decreased. Sand added to the additive plus cement, e.g. portland, blast furnace, fly ash and silica cements. A waterproofer is optional.
Patent GB-1127886-A (GB)
Title: Separator for separating two fluid phases
IPC: E21B43/34
Filed: 1967-01-30
Abstract: 1,127,886. Liquid/gas separator. BLACKSIVALLS & BRYSON Inc. 30 Jan., 1967 [3 March, 1966], No. 4470/67. Headings BID and B1M. Apparatus for separating into its constituents a water, petroleum and gas mixture introduced at 14 comprises smooth concentric baffle plates 44 with drain ports 32, horizontal baffles 36 and a vertically adjustable liquid outlet 24. Cleaning may be effected using steam. Fig. 2 shows an apparatus for separating gas from a foaming petroleum mixture and (Fig. 3 not shown) from a petroleum mixture with little foam.
Patent GB-460341-A (GB)
Title: Improvements in mixing machines for powdered or granular materials
IPC: B60G11/22
Filed: 1936-02-14
Abstract: 460,341. Mixing - machines. SIMON, Ltd., H., and BRIAN, J. C. Feb. 14, 1936, No. 4480. [Class 86] In a mixing-machine for powdered &c. material of the conveyer type, the worm blades have projections on one or both faces which form pockets and throw the material upwards into a clearance space. As shown, the propelling faces of the worm blades c have triangular parts f, the base of the triangle being near the edge of the blade, and the plane of the triangle being perpendicular to the blade. The blades c may be replaced by a continuous worm at each half turn of which a part f is fitted.
Patent GB-557071-A (GB)
Title: Shaped heat resisting lining panels for steel chimneys, ducts, flues and the like
IPC: E04H12/28
Filed: 1942-04-08
Abstract: 557,071. Lining panels for steel chimneys &c. STANIFORTH, A. V. April 8, 1942, No. 4592. [Classes 96 and 140] Shaped heat-resisting lining panels for steel chimneys, ducts, flues &c. are produced by impregnating asbestos millboard sheet with a solution of sodium silicate, moulding the limp sheet to the required shape, drying and painting the surface with a waterproofing material such as a solution of a hard type bitumen in naphtha or white spirit containing lamp black. The porosity of the panel is thus reduced and also it is rendered practically inert to flue gases. The moulding may be effected by a press or by hand and a recess may be formed along one edge of a panel permitting an overlap joint with another panel. Specifications 537,307 and 552,960, [both in Group X], are referred to.
Patent GB-495533-A (GB)
Title: Improvements in or relating to electric incandescent lamps
IPC: F21V3/00
Filed: 1938-02-16
Abstract: 495,533. Lampshades. GLUHLAMPENFABRIK GLORIA AKT.-GES. Feb. 16, 1938, No. 4813. Convention date, Feb. 19, 1937. [Class 75 (ii)] For A.R.P. purposes an aluminium shade 2, having a light exit aperture of diameter b less than the height a of the shade can be slipped on over an electric bulb 1 which may be coloured and insulated if necessary from the shade.
Patent GB-962623-A (GB)
Title: Method for purifying phenols
Inventor: JR ALEXANDER HERMAN WIDIGER
IPC: C07C37/86
Filed: 1963-02-06
Abstract: Phenols prepared by the caustic hydrolysis of aryl chlorides and having the formula: <FORM:0962623/C1/1> in which R is an alkyl group of 1-4 carbon atoms or a phenyl or an alkylphenyl radical and R1 is hydrogen or an alkyl group of 1-4 carbon atoms, are purified by treatment with an oxygen-containing gas at a raised temperature in the presence of an aqueous alkaline solution. Specified phenols which may be treated are o- and p-phenylphenol, p-sec.- and p-tert.-butyl-phenol, o- and p-cresol and di-tert.-butylphenol. The alkaline solution may be a solution of sodium or potassium hydroxide or carbonate and may contain 0.1-2% of alkali based on the weight of the phenol under treatment.  The oxygen-containing gas may be air and may be used under a pressure of 1.5-7 atm. in such a proportion as to provide 0.05-2 c.ft. of oxygen per lb. of phenol.  The treatment may be effected at 60-120 DEG C., and the purified phenols may be separated from tarry impurities formed in the process by vacuum distillation.  Examples are given.
Patent GB-373155-A (GB)
Title: Improvements in or relating to cloth tentering and drying machines
IPC: D06C3/00
Filed: 1931-02-17
Abstract: 373,155. Drying cloth. WHITELEY, E. G., Beech Grove, Fountain Street, Morley, Yorkshire. Feb. 17, 1931, No. 4950. [Class 34 (i).] Cloth passing to and fro in parallel horizontal courses through a chamber is dried by means of hot air circulated to and fro from side to side of the chamber in an upward zig-zag path between the courses and at right-angles to the direction of traverse of the cloth, this circulation being obtained by means of a staggered arrangement of baffles mounted on or projecting from the sides of the chamber between the courses of the cloth. The air entering the chamber may be heated by internal steam pipes or by external heating means, and may be withdrawn from the upper part of the machine by means of a suction fan. Means may be provided to prevent entrance of air by way of the aperture through which the cloth is led. In the apparatus illustrated in the drawing, the runs of cloth 2 passing alternately in opposite directions through the chamber are carried by chains 2x. The air enters at 5 and leaves at 6, being heated by pipes 4 and guided by baffles 3, which may be inclined upwards.