baber/WOPTO huggingface dataset:
Patent GB-187363-A (GB)
Title: Improvements in directional wireless apparatus
IPC: G01S1/02
Filed: 1921-08-09
Abstract: 187,363. Hecht, N. r. S. Aug. 9, 1921. Bearings, determining; directive signalling; heterodyne receiving systems.-In apparatus for producing a rotating beam, wherein the amplitudes of oscillations in angularly-disposed fixed directional aerials or loops are varied sinusoidally and with phase difference, the amplitudes are varied by means of potentiometers which are constantly and uniformly operated to vary the anode or grid potentials or both of the power valves exciting the aerials. In the arrangement shown two fixed coaxial loops 1, 2 with tuning condensers 3, 4 are disposed at right-angles to one another and are excited by power valves 5, 6, the grid circuits of which are coupled to the oscillating circuit 18, 19, 21 of a common generating valve 17, through reversing switches 24, 25 and transformers 22, 23. The power valves 5, 6 are provided with a common gridleak 26 and are supplied with a varying anode current from a direct current source 8, by means of potentiometers 9, 10 connected across the source 8 and tapped at intervals to studs 13, 14 over which move the arms 15, 16 of a switch which rotates with a constant angular velocity, so that the variations of amplitude of the oscillations in the two loops 1, 2 are sinusoidal and 90‹ out of phase. As the amplitude of the oscillations in the loop 1 increases from zero to a maximum, the amplitude of oscillations in the other loop 2 decreases from maximum to zero, and the resultant beam rotates through 90‹. When the amplitude of the oscillations in cne loop falls to zero, due to the inclusion of a minimum of the potentiometer resistance, a cam or equivalent device on the rotary switch operates the reversing switch 24 or 25 in the grid circuit of the corresponding power valve, thereby displacing the phase of the oscillations in the two loops 180‹, so that when the anode currents pass through their next cycle of variation the beam continues to rotate through the next 90‹, at the end of which the other reversing switch is operated and so on. Resistances 27, 28, inserted in the filament circuits of the power valves, are automatically adjusted to neutralize any change in the oscillation constant of the anode circuits due to the variation of the anode potentials. The tappings of the potentiometers 9, 10 are also adjustable in order that any deviation of the beam caused by local effects may be compensated for. If it is desired to vary the voltages applied to the grids of the power valves this may be done by a similar arrangement of non- inductive potentiometers and rotary switches.
Patent GB-1488552-A (GB)
Title: Integrated circuit image and sum enhanced balanced mixer
IPC: H03D7/18
Filed: 1975-05-19
Abstract: 1488552 Microwave mixers WESTING- HOUSE ELECTRIC CORP 19 May 1975 [24 June 1974] 21204/75 Heading H3T A microwave mixer comprises a card 14 having on one side a metallic coating 16 in which are provided a slot line 18 and a coplanar strip line 22 having stubs 27, 28. The lines meet at a hybrid junction 25 having GaAs Schottky diodes 29, 30 constituting a heterodyning circuit. The received signal is applied to a strip line 31 on the back of the card and is coupled to the slot line 18 by an impedance changing strip line 31. The signal is then connected to the diodes at the hybrid junction in series through an image frequency rejection filter formed by strips 34, 36, 38 on the back of the card. The local oscillator signal is applied to a strip line 46 on the back of the card and is coupled through a travelling wave directional filter 52 to a strip line 42 and thence by a pin 44 extending through the card to the strip line 22. There it is applied to the diodes 29, 30 in parallel and the I.F. signal produced, for which coupler 52 provides a high impedance, passes out along line 42. The length of stubs 27, 28 is chosen to suppress the sum frequency. In a modification, fig. (not shown) the diodes are connected to isolated areas of the ground plane so that they may be independently biased. Beam leaded capacitors connect the areas together for all signal frequencies involved.
Patent GB-904570-A (GB)
Title: Improvements in gyroscopic apparatus
Inventor: FILLERY WILLIAM JAMES
IPC: G01C19/38
Filed: 1960-06-16
Abstract: 904,570. Gyroscopic apparatus. SHORT BROS. & HARLAND Ltd. May 30, 1961 [June 16, 1960], No. 21232/60. Class 97 (3). [Also in Group XXXVIII] A rate gyroscope comprises a rotor 22 rotatably mounted at one end in a casing 23 and provided at its other end with a spherical surface 28, centred on the point of intersection of the three axes of the gyroscope, the surface 28 co-operating with a ball 29 engaging a roller 30 so that the speed of rotation of the ball 29 and roller 30 is proportional to the angular precession of the gyroscope. As shown applied to controlling the attitude of a V.T.O.L. aircraft the apparatus is used to modify a command signal S at shaft 11 to provide an actuator output z at shaft 20 wherein z=aS+b#+c#; a, b, c being constants, # being the attitude and # the rate of change of attitude of the aircraft. The lever 12, connected between shafts 11, 20, transmits movement proportional to aS-z through a link 13 to the central fulcrum point of a floating differential lever 14 which is connected at one end through a link 34 to the rotor casing 23 and is thus moved in accordance with c# and which is connected at its other end to a shaft 15 carrying the piston of an hydraulic valve 16. The casing of the cylinder of valve 16 threadedly receives an extension 32 of the shaft of roller 30 so that its movement represents b#, the valve 16 controlling an actuator 17 for shaft 20.
Patent GB-1496588-A (GB)
Title: Sheet feeding apparatus
IPC: B65H3/52
Filed: 1975-05-19
Abstract: 1496588 Feeding sheets XEROX CORP 19 May 1975 [5 Sept 1974] 21239/75 Heading B8R The subject matter is the same as that of Specification 1,496,734, but the claims are directed to means responsive to the frictional resistance encountered by the separator at the nip between it and the retard means for forcing the separator against the pile with a given force.
Patent GB-225264-A (GB)
Title: An improved gearing for the transmission of power
IPC: F16H13/02
Filed: 1923-08-22
Abstract: 225,264. Garrard, C. R. Aug. 22, 1923. No Patent granted (Sealing fee not paid). Variable-speed. friction gearing. - In friction gearing, the driving-wheel 1 gears directly with the driven wheel 2 and also with an idler engaging a freely mounted binding-ring 12, sprung over the wheels 6, 2. The bearings of the wheels 1, 6 may slide loosely in a slot 9 or they may be carried by freely swinging links. The wheels 1, 2, 6 may be re-arranged to gear together on a diameter of the wheel 12 in any desired order. Flanges 13 on alternate wheels. or bearing rollers on the framing, prevent movement of the wheels along their axes. A safetyring of soft iron &c. may be shrunk or otherwise disposed around the binding-rings as a precaution against breaking. In the Provisional Specifica tion it is stated that under maximum stress, the binding-ring should not move sufficiently to cause the angles between the surfaces at the contacting-points to exceed the natural angle of repose of the materials employed, and that the invention is applicable to turbine reducing-gear and to automobile, change-speed gearing, certain arrangements of change-speed gearing being described. In one such form, the idler roller in each set of wheels is mounted on a swinging or sliding bearing so that it can be moved out of line with the driving and driven rollers by levers sliding cans, &c., to release the binding-ring. More than one set may be arranged in series for increase of speed-ratio. This disengaging-means may be used in a single set of wheels. In another form, any of the three rollers may be slid laterally for engaging any of speed ratios desired.
Patent GB-170113-A (GB)
Title: Improvements in and relating to lighting attachments for motor vehicles, such as motor cycles
IPC: B62J6/06
Filed: 1920-07-14
Abstract: 170,113. Muir, S. G., and Mathys, G. A. July 14, 1920. Dynamos, driving.-A lighting dynamo 17 is clipped to the frame of the motor or other cycle and is driven through a flexible shaft 16 from a pinion 4 gearing with a toothed ring 1 dipped to one of the road wheels. A double clip 44, 46 embraces the dynamo and a frame tube to secure the dynamo in position. When spur gearing is used, the pinion 4 and its shaft are carried by a telescopic support 11, Fig. 3, which is fixed to, or pivotally supported at 14 on, a frame clip 8. When spiral gearing is used, the pinion shaft runs on ball bearings in a casing 19, Fig. 6, and gears with a spiral-toothed ring 1, the casing being supported by an horizontal rod 38 adapted to be clamped adjustably in an eye on a rod 37 which is adjustable vertically in an eye of a frame clip 30. Gauge-stops 40 enable the gear to be readily reset when it is desired to drive the dynamo. Specification 162,834 is referred to.
Patent GB-1000091-A (GB)
Title: Apparatus and process for bringing two or more phases into intimate contact with each other
IPC: B01F27/94
Filed: 1963-05-28
Abstract: 1,000,091. Contacting liquids. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. May 28, 1963 [May 30, 1962], No. 21321/63. Heading B1F. An apparatus for contacting liquids comprises a reactor 1 with rotor 6 which describes a cylindrical surface an stator rings 11. In the contacting of immiscible liquids the heavier phase enters through 2 and leaves through 5 and the lighter phase through 3 and 4. Coalescence may be promoted by grids 15 and 17 and steel wool or fibres position at the stators. Specification 659,241 is referred to.
Patent GB-687966-A (GB)
Title: Improvements in or relating to endo-tracheal tubes
IPC: A61M16/04
Filed: 1950-08-30
Abstract: In an endotracheal tube having an inflatable cuff for retaining it in position, the inflating conduit is formed in the wall of the an sthetic gas tube so as to present a smooth external surface. In addition the cuff may be rabbeted on to the tube to avoid any projecting overlap.  The inflating tube may also be provided with a non-return valve and an external indicator, such as an inflatable sac, to show when the cuff is inflated.
Patent GB-1410534-A (GB)
Title: Insert cutter for cutting kerfs
IPC: E21B10/52
Filed: 1973-05-04
Abstract: 1410534 Kerf cutters DRESSER INDUSTRIES INC 4 May 1973 [8 May 1972] 21425/73 Heading E1F A cutter for mounting on the rotary head of a boring machine or the body of an earth boring bit includes at least two rows (1-8) of inserts 10 adapted for cutting concentric circular kerfs; the inserts of each row being arranged so that the distance between the nearest points 29 of adjacent inserts (cutting structure interruption) is less than 75% of the distance between the central axis 28 of adjacent inserts (pitch chord). In the embodiment shown a cutter shell 11 is freely rotatable on a gearing shell 12 locked to a saddle 13 and carbide inserts 10 have elongated head portions 27 aligned along the insert rows and parallel leading and trailing flanks to provide a cutting structure interruption which is less than the pitch chord, the inserts in cutting simulating a continuous line contact with the formations.
Patent GB-789296-A (GB)
Title: Processes for producing coumarin derivatives
IPC: C07D311/46
Filed: 1954-07-22
Abstract: 4-Hydroxycoumarins substituted in position 3 are prepared by reacting an N,N-disubstituted 3-aminomethyl-4-hydroxycoumarin of formula: <FORM:0789296/IV (b)/1> (where R is an aliphatic or cyclic amine residue, e.g. dimethylamino or piperidino) at an elevated temperature with a ketone having at least one hydrogen atom on the carbon atom in the a -position to the carbonyl group.  The nitrogen is eliminated as an amine RH, thus obtaining a 4-hydroxycoumarin in which the 3-methyl residue is attached to the a -carbon of the ketone employed. Aliphatic, alicyclic or aromatic ketones may be used, particularly cyclohexanone, a -decalone, a -tetralone, acetophenone, p-halogeno-acetophenones, propiophenone, chalkones, chromones, and naphthoquinones.  The reaction is normally complete in 10-15 minutes at about 165 DEG  C.  In examples: (1) 3-dimethylaminomethyl-4-hydroxycoumarin is heated with o-hydroxyacetophenone, mixture poured into 5 per cent NaOH, acidification yielding 3 - (o - hydroxybenzoylethyl) - 4 - hydroxycoumarin; (2) to (4) as in (1), using acetophenone to give 3-benzoylethyl-4-hydroxycoumarin; cyclohexanone to give 3-(21-oxo-cyclohexylmethyl) - 4 - hydroxycoumarin; and chromone to give 3-(chromonyl-31-methyl)-4-hydroxycoumarin respectively.
Patent GB-278850-A (GB)
Title: Improvements in or relating to rubber soled footwear
IPC: A43B5/10
Filed: 1926-09-01
Abstract: 278,850. Liverpool Rubber Co., Ltd., and Davies, I. W. Sept. 1, 1926. Connecting uppers to insoles and soles; uppers; athletic shoes.-A shoe having a rubber or like sole and a canvas upper is reinforced by a strip or strips and/or pieces of rubber or rubber compound. The reinforcement is effected by superimposition of the rubber strips &c. subsequent to the complete formation of the shoe. The superimposed strips may serve an ornamental purpose as well as strengthening means. A continuous strip a surrounds the upper b a, suitable distance above the sole c. Two reinforcing pieces d, also of rubber composition, extend up each side of the instep and may extend and include the eyelet holes e. A separate toe cap f may be superimposed on the strip a and may have ornamentation on it in any suitable manner. The strips may also be coloured to contrast with the shoe. The strips may be vuleanized or otherwise connected to the shoe.
Patent GB-206575-A (GB)
Title: An improved adjustable tappet for the valves of internal combustion engines
IPC: F01L1/20
Filed: 1922-08-08
Abstract: 206,575. Struckman, E. F. Aug. 8, 1922. Spindles.-An adjustable tappet for the end of a poppet valve stem for internal-combustion engines, which serves also as an abutment for the spring-retaining washer g, comprises a sleeve f screwed upon the end of the valve stem and formed with a split lug b adapted to be tightened on to the stem by a bolt d.
Patent GB-1516807-A (GB)
Title: Bat for playing a ball game
IPC: A63B59/04
Filed: 1976-05-25
Abstract: 1516807 Table tops A M RING and B L SANDORS 25 May 1976 21536/76 Heading A4H [Also in Division A6] A table, on which a game resembling table tennis can be played outdoors, comprises two slabs 1 of reinforced waterproof concrete, edged at 2 with angle iron and supported on a metal frame 3, which is carried by metal legs 4 set in concrete 7.
Patent GB-359482-A (GB)
Title: Improvements in or relating to regenerative coke ovens
IPC: C10B5/02
Filed: 1930-07-16
Abstract: 359,482. Coke ovens. KOPPERS, AKT.- GES., H., 29, Moltkestrasse, Essen, Germany. July 16, 1930, No. 21569. Convention date, Sept. 27, 1929. [Class 51 (ii).] In a coke oven having transverse regenerators divided into half length chambers by a wall along the longitudinal median plane of the battery, the connections being such that all the chambers at one side of the wall serve for inflow and at the other for outflow, wide chambers 20, 40 alternate with pairs of half width chambers 21, 41. In the " twin " flued oven shown, in which the pairs of small regenerators at one side of the bench are opposite undivided regenerators at the other, all the chambers have direct connections 27, 28, 67, 68 to the heating-flues immediately above them, and the undivided regenerators are also connected to the heating-flues at the opposite side of the bench through flues 63, 83. Each of these flues is connected to four heating walls by transverse passages 64, 84, and ports 65, 66, 85, 86. The connections are such that on the inflow side gas and air regenerators alternate along the length of the battery.
Patent GB-920198-A (GB)
Title: Method of and apparatus for producing electrical energy from nuclear fuel
Inventor: MCWILLIAMS JOSEPH ANTHONY
IPC: G21C3/40
Filed: 1958-07-05
Abstract: 920,198. Nuclear reactors; discharge apparatus. BOUCHER & CO. Ltd. Oct. 5, 1959 [July 5, 1958], No. 21603/58. Classes 39 (1) and 39 (4). Apparatus for producing electrical energy comprises a nuclear fuel element in thermal communication with an electron emitting surface rendered active by heat produced in the fuel element, an anode spaced from the surface to receive electrons from it, and means for maintaining an ionized gas in the spaced between the surface and the anode to counteract the impediment to electron transit which would otherwise be established by a space charge of electrons. In Fig. 2 a fuel element 21 is supported inside an anode 26 by a conductor 29. The fuel element comprises a rod of uranium oxide or carbide or of graphite containing dispersed uranium carbide encased in a graphite cylinder; the graphite cylinder is coated with material of low thermal emissivity such as tantalum 0.001 inch thick and with an electron emissive coating of barium oxide, thorium oxide or strontium oxide of molecular thickness. The anode may be of graphite coated with material of low thermal emissivity such as silver 0.001 inch thick and with a molecular thickness of material such as silver oxide or cesiated silver oxide to reduce the work function of the anode. The space between the anode and cathode is filled with argon or cesium vapour which passes through the space from a hole 32 to an aperture 30 in an insulating bush 28 which spaces the cathode support 29 from the anode. A plurality of such anode/cathode assemblies may be arranged between upper and lower header plates in a tank containing coolant such as water, heavy water or terphenyl; spaces above and below the header plates form plenum chambers for the argon or cesium vapour, Fig. 1 (not shown). In an alternative arrangement to that shown in Fig. 2, Fig. 4, a number of anode/cathode assemblies are arranged in series inside a tube 37a, each anode 26a supporting the cathode 21a of the next assembly. The space between the anodes and the surrounding tube may be filled with a material such as magnesium oxide which is an electrical insulator but a good thermal conductor, Fig. 5 (not shown). In a modification, Fig. 6 (not shown), the tube 37a is omitted and the anodes are in direct contact with a cooling liquid.
Patent GB-149326-A (GB)
Title: Improvements in telemeters having the base-line in the instrument
IPC: G01C3/12
Filed: 1920-07-19
Abstract: 149,326. Zeiss, C., [Firm of]. July 21, 1919, [Convention date]. Range-finders.-For the purpose of correcting the errors in short-home-base range-finders having two telescope systems and a reflecting system at each end, the forms and dispositions of the reflecting systems are such that one of the reflecting systems can be placed unaltered in front of the entrance aperture of the second reflecting system, thereby converting the range-finder into one having the base-line zero. Figs. 1 and 2 show one example, in which a pentagonal prism e<2> is rotated through 180 degrees in the plane of measurement into a position in front of the other reflecting system, constituted by a Porro prism system. Figs. 5 and 6 show an example in which two Porro prism systems g<1>, g<2> are used, the movable prisms being rotated through 180 degrees in the plane of the base line, and then through 90 degrees in a plane at right-angles, to the position indicated in broken lines. Among other examples described is that shown in Figs. 14, 15 and 16, in which the stationary prism system comprises two pentagonal prisms l<1>, l<3> united by a rhomboidal prism l<2> and the movable prism consists of a pentagonal prism l<4>.
Patent GB-187378-A (GB)
Title: Fog-horn for motor crafts
IPC: G10K9/18
Filed: 1921-08-15
Abstract: 187,378. Hakonsen, O. Aug. 15, 1921. Storing under pressure. -Compressed air taken from the crank-chamber of the engine to operate the fog-horn of a motor boat is stored in a reservoir provided with a valve which automatically closes to stop the supply of air as soon as desired volume or pressure is reached, the valve automatically opening to re-fill the reservoir as soon as air is let out to sound the horn. The reservoir may comprise a bellows 3, Fig. 1, secured to a partition 2 in a casing 1, the compressed air from the crank-chamber entering the bellows through a pipe 15 and valve 8. The lower side 4 of the bellows moves downwards against the springs 5, carrying with it a cross-bar 13, Fig. 3, which slides on rods 12. When the bar 13 engages the nuts 17, the rods 12 also commence to descend, and a valve member 9 carried by a second cross-bar 11 fixed to the rods 12 closes the opening 7 to cut off the further supply of air. When air is taken from the reservoir for sounding the horn 21 by opening the valve 22, the bar 13 rises, the springs 14 restore the rods 12, and the valve 9 is opened until the bellows is again full. In modifications, the valve casings may be connected to the reservoir by pipes, and the bellows may be controlled by weights instead of springs.
Patent GB-424809-A (GB)
Title: Improvements in and relating to bottle crates
IPC: B65D85/30
Filed: 1934-07-25
Abstract: 424,809. Bottle crates. CO-OPERATIVE WHOLESALE SOCIETY, Ltd., 1, Balloon Street, and TOWNLEY, H., Arnside, Park Road, Higher Crumpsall, both in Manchester. July 25, 1934, No. 21724. [Class 18] A bottle crate has upper, lower, and intermediate frames b, g, h, a, and corner posts f of round section, and dividing members k forming the bottle compartments and having upper edges j<1> also of round section. The dividing members k are of composite formation, comprising sheet metal plates with rolledover upper and lower edges and a rod in each of these rolled-over edges. The edges of the plates abut the intermediate frames g, h to resist inward deformation of the crate, while the rods are riveted over on the outer side of the frames g, h to resist outward deformation. The frames may be of hollow section formed from two half parts joined together by welding the abutting ends over a dowel, tenon or the like.
Patent GB-1360884-A (GB)
Title: Oxide solders and methods of making same
IPC: C03C8/02
Filed: 1972-05-10
Abstract: 1360884 Glass to metal, glass or ceramic OWENS-ILLINOIS Inc 10 May 1972 [11 May 1971] 21727/72 Heading C1M [Also in Divisions B3 and C7] An oxide flux or solder consists of a binary mixture of Ag 2 O and V 2 O in a mole ratio 0À3- 3À5 Ag 2 O : 1 V 2 O 5 . The composition is made by adding powdered V 2 O 5  to molten AgNO 3  below 700 C., e.g. 380-620 C., cooling and then crushing the mixture. The composition may be used as a frit or powder or mixed with inorganic or organic binders or solvents to form a paste for joining high expansion glasses, ceramics and metals to each other or any combination of these materials, e.g. steel to glass, and glass to glass particularly for materials with dissimilar thermal expansion characteristics.
Patent GB-593013-A (GB)
Title: Improvements in and relating to the production of dl-n-formyl-isopropylidene-penicillamine l-brucine salt
IPC: C07D277/06
Filed: 1945-08-24
Abstract: dl - N - Formylisopropylidenepenicillamine l-brucine salt is prepared by racemising by heating with acetic anhydride the l-N-formylisopropylidene-penicillamine-l-brucine salt or a crude mixture of the d and dl-N-formylisopropylidenepenicillamine-l-brucine salts.  The process preferably takes place in the presence of an inert diluent such as benzene.  Specification 585,436 is referred to.
Patent GB-1433926-A (GB)
Title: Composite iron-inoculating substance
IPC: B22D1/00
Filed: 1973-05-08
Abstract: 1433926 Casting processes PONT-A-MOUSSON SA 8 May 1973 [10 May 1972] 21858/73 Heading B3F [Also in Division C7] A composition for inoculating iron comprises a powdered inoculant aggregated by a binder of anhydrous sodium chloride. The preferred composition contains 40-80% by wt. of 60-200 Á ferrosilicon; it may be used in the form of pellets, or as a perforated pouring core or it may define the pouring passage of the mould itself. As particularly described, the pelletized composition 1 is placed on a filter 2 located in the joint plane of mould 3.