baber/WOPTO huggingface dataset:
Patent GB-1383294-A (GB)
Title: Flarestacks
IPC: F23G7/08
Filed: 1971-04-29
Abstract: 1383294 Flarestacks BRITISH PETROLEUM CO Ltd 5 April 1972 [29 April 1971] 12069/71 Heading F4T  A flarestack burner tip comprises a feed line 2 for supplying high pressure gas (fuel gas or steam) and a Coanda body 1 positioned across the outlet of the feed line 2, so that a slot 3 is formed between the outlet and the body 1, the slot being self-adjusting in width according as the flow-rate of high pressure gas varies so that the pressure of the gas emerging from the slot remains approximately constant. In operation the high pressure gas flows out of the line 2 through the slot 3 and is directed by the portion 4 round the body and along the conical portion 5. As the direction of flow is changed at the portion 4 a low pressure zone is induced which causes air to be taken along with the gas towards the top of the body. The adjustability of the slot may be achieved by various means. As shown in Fig. 1, the body is free floating and so the slot opens to pass any required flow at constant pressure. A load on the Coanda body may be supplied to allow,the flow of higher and varying pressures and this may be achieved by applying a load through a mechanical advantage, e.g. an hydraulic system, Fig. 2 (not shown), by use of a spring, Fig. 3 (not shown), or by fitting a bellows joint in the feed line, Fig. 4 (not shown), with springs preferably acting in parallel with the bellows, Fig. 5 (not shown). The Coanda body may include an internal passage for supplying fuel gas at low pressure into the high pressure gas and air.
Patent GB-699040-A (GB)
Title: Improvements relating to gearing
IPC: F16F15/129
Filed: 1951-05-23
Abstract: 699,040. Damped resilient drive. DAIMLERBENZ AKT.-GES. May 23, 1951 [May 23, 1950], No. 12101/51. Class 80 (ii). Gearing with elastic drive - transmission means, particularly for a motor-vehicle, comprises a gear shaft adapted to be coupled to its drive through a, gear-change clutch, particularly a friction . clutch, the gear shaft being con, structed as a torsion rod and co-operating with friction members to dampen the torsional oscillations. As shown applied to the gearing described in Specification 699,039, a driving shaft 1 transmits power through a fluid clutch 2 and the gearing shown in a gearcase 13 to a driven shaft 24 for the three low speeds, while direct drive is obtained by engaging a hydraulically operated friction clutch 6 which bridges over the fluid clutch 2, the driven part of the clutch 6 being connected to a torsion rod 9. The torsion rod has ribbed end portions 9', 9", of which the latter is connected to a shaft 23 secured to the driven shaft 24. Friction clutches 19, 20, which are selectively engaged for second and third speeds, run free for direct drive but have sufficient residual friction to. dampen the oscillation of the torsion rod.
Patent GB-1469647-A (GB)
Title: Fibre-reinforced moulded and hardened material
IPC: C04B32/02
Filed: 1974-03-19
Abstract: 1469647 Fibre - reinforced cementitious materials PORTLAND ZEMENTWERKE HEIDELBERG AG 19 March 1974 [3 May 1973] 12171/74 Heading C1H A reinforced moulded material which has been hardened by the hydration of an hydraulic cement (e.g. Portland cement or gypsum) contained therein comprises as reinforcement mineral fibre bundles which pass right through the material and have been treated before being embedded in the material by the impregnation thereof by, and the subsequent hardening therein of, a hardenable liquid or an hydraulic cement paste (e.g. a suspension of calcium hydroxide). The mineral fibre is defined as being a vitreous siliceous fibre, e.g. glass fibre. The term "hardenable liquid" is defined as being organic-liquidhardenable resin or a melt of a glass, ceramic, metal or metal alloy. By "passing through the material" is meant that the bundles, which are continuous bundles or discontinuous groups of shorter bundles (preferably overlapping with each other) embedded in substantially the same direction, have an overall length equal to the length of moulded and hardened material. Dispersing, pore-forming, decelerating, accelerating, compacting or adhesion-improving additives may be present within the material during the hardening process. The pH of the pore water within the material may be reduced by the incorporation of carbon dioxide or an additive into the material before hardening. The material may contain transverse reinforcement which consists either of similar fibre bundles or of shorter mineral fibres or other fibres. It may also contain woven fabric, layers or mats of mineral fibres or of other fibres. The fibre bundles may be embedded by inserting and/or by drawing-in and/or by coiling the fibres. The position of the fibres in the cross-section of the bundle before embedding may be adjusted so that each of the fibres lies on the outer surface of each fibre bundle at regular intervals along the length and contacts and bonds with the material in sections. In an example, a reinforced material is formed from cement, water, endless glass silk treated in accordance with the invention, and sand.
Patent GB-860259-A (GB)
Title: Improvements in or relating to vehicle handling apparatus
Inventor: MITCHELL FREDERICK GILBERT
IPC: B61J3/08
Filed: 1956-04-20
Abstract: 860,259. Propelling rail vehicles. MITCHELL ENGINEERING GROUP Ltd. July 22, 1957 [April 20, 1956], No. 12184/56. Class 104 (2). A vehicle-handling mule comprises a carriage 1 running on a track between vehicle track rails and carries a wheel engaging roller 8 mounted between rail-engaging roller 6, 7 on an arm 5, pivoted to the carriage and connected by a cross-shaft 18 to levers 19, 20 mounted on a pivot shaft 23, the levers 19 being connected by a spring to an arm 26 pivoted on the shaft 23 and carrying a cam rider 27 contacting a cam 28 on a carriage wheel shaft 21 whereby on forward movement of the carriage the cam bears on the cam rider and extends the arm 5 so that the roller. 8 engages the vehicle wheel. The cam 28 has a ratchet which allows the cam to freewheel during rearward movement of the carriage. The rollers are retracted during.rearward movement of the carriage by a roller 15 on the arm 5 striking a wheel flange. Movement of the arm forces a shaped collar into contact with a lower shaped collar on the pivot of the arm 5 and aided by a spring retains the arm clear of the vehicles during rearward movement of the carriage. The mule may run on a track beside the main track, in which case it carries a single arm 5. If the mule runs on a track between the main track it has two arms 5. Instead of having rollers 6 and 7 contacting each side of the roller 8 one rail-engaging roller may be positioned laterally of the roller 8. Specification 860,258 is referred to.
Patent GB-1364773-A (GB)
Title: Decoding of frequency coded signals
IPC: H04Q1/457
Filed: 1972-03-16
Abstract: 1364773 Code converters INTERNATIONAL BUSINESS MACHINES CORP 16 March 1972 [5 April 1971] 12229/72 Heading G4H In a code converter input signals composed of combinations of one out of four low frequencies A 1 -A 4  and one out of four high frequencies B 1 -B 4  are separated into channels by filters 11, 61 and in each channel successive positive half-cycles are used to enable an A.C. reference signal to increment a counter 14 or 64, each input signal providing a data output A<SP>1</SP> 1  &c. only if successive counts are the same to within a given tolerance. In, e.g. the low frequency channel, frequencies A 1 -A 4  of 697, 770, 852 and 941 Hz correspond to counting ranges 88-86, 80-78, 72-70 and 66-63 respectively, the counts being obtained when each positive halfcycle enables a gate 13 for a 122 kHz reference signal. The counter 14 is a seven stage binary counter (2<SP>6</SP><88<2<SP>7</SP>); combinations of the seven outputs and their inverses are fed to AND-gates 98 (see also Fig. 2, not shown) corresponding to each possible count, the outputs therefrom being connected in groups (88-86 &c.) to four OR-gates. An output from one of these OR-gates thus indicates a particular frequency Ai, and this is fed to the appropriate one of AND-gates 15, 25, ... and to the corresponding AND-gate 17, 27, ... (e.g. gates 15, 17). A central timing control 50 sends enabling signals to gates 15, &c., 17, &c., gates 15, &c. being enabled at the end of every positive halfcycle to store the signal in, e.g., register 16. The timing is such that the count-representative signal in 16 is compared with the signal representing the succeeding count: if these signals represent the same counting range (same frequency) then gate 17 is enabled, but if the signals do not agree then there is no output. A similar process occurs with the other channel, though here the counts are lower and only a six-stage counter 64 is needed. The above arrangement may be adapted for m out of n frequencies on more than two channels, for comparisons of more than two successive counts, and for information transmitted in sections having different successive code frequency components. Digitally operating filters may be used for channel separation.
Patent GB-1065553-A (GB)
Title: Improvements relating to composite articles
Inventor: BRADLEY WILLIAM GEORGE
IPC: F24B15/10
Filed: 1964-03-24
Abstract: 1,065,553. Smoker's ashtrays. IAN HEATH Ltd. March 23, 1965 [March 24, 1964], No. 12299/64. Heading A2M. [Also in Divisions A4, B3 and B4] The suspension plate of a fire iron is formed from a major component in the form of a rectangular die casting, e.g. from a zinc alloy, and has recessed portions 12, 10c and a central aperture 11. A subordinate component 15 is slid over the major component and is a close fit in the recessed portions 12. Projections 20 are flattened so as to overlie the surfaces 16 of the component 15, which is made from a ductile metal so as to slide over the rib 14 and projections 20 without deformation. It may also be faced with a plastics material simulating hard wood (Fig. 1, not shown). Alternatively the suspension plate may be circular or of horseshoe shape in which case the subordinate component fits into grooves undercut into the ribs surrounding the recesses (Figs. 4-7, not shown). In a handle for a dish, there is no central aperture and the subordinate component is held in place by a separate cap component (Fig. 8, not shown). The invention is also applicable to smokers' companions and ashtrays.
Patent GB-646097-A (GB)
Title: Electromagnetic switch for controlling the starter motor of an internal combustion engine
IPC: H01H35/12
Filed: 1948-05-05
Abstract: 646,097. Starting prime movers. BENDIX AVIATION CORPORATION. May 5, 1948, No. 12392. Convention date, June 10, 1947. [Class 38 (iv)] [Also in Group XXXVII] A switch for use in the starting system of an I.C. engine comprises a lever 15 which is moved into its dotted position when an electromagnet 37 is energized thereby bringing a contact 24 into engagement with a fixed contact 29 and a member 18 into engagement with the fan belt 21 or other movable part of the engine; if the engine is back-firing the movement of the belt 21 rotates the lever 15 about its longitudinal axis so as to move the contact 24 sideways away from the contact 29. The contacts 24, 29 control a relay 5 which through contacts 2 controls the energization of the starting motor. In the form shown, the contact 29 extends sufficiently far in one sideways direction for it to remain in engagement with the contact 24 when that is rotated by the belt 21 moving in the forward direction. In a modification, Figs. 5-10 (not shown), when the electromagnet is energized the lower end of the lever 15 moves into engagement with the belt, after which the upper end moves to cause engagement of the contacts. In a further modification, Fig. 11 (not shown), the fixed contact is narrow so that it is not engaged should the belt be moving in either direction. If the belt is stationary, contact is made, the engine starts, contact is broken but the coil 5 continues to be energized through a resistance connected across the contacts.
Patent GB-747307-A (GB)
Title: Device for the speed control of electrical motors
IPC: H02P5/50
Filed: 1954-04-29
Abstract: 747,307. Automatic speed control systems. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. April 29, 1954 [May 9, 1953], No. 12415/54. Class 38 (4). A sectional drive, e.g. for paper machines, is automatically controlled in accordance with the speed error signal and its integral. As shown with two identical drives denoted by suffixes : 1 and : 2, motors 1 : 1, 1 : 2 drive tachometer generators 3: 1, 3: 2 whose output voltages are compared with a reference voltage e 4  to control the respective motor fields. The error voltages are also applied to integrating circuits comprising resistors 5: 1, 5: 2 and capacitors 6: 1, 6: 2 which are arranged to regulate generators 7: 1, 7: 2, producing voltages equal and opposite to those across the capacitors. This generated voltage is used to energize the fields of generators 9: 1, 9: 2 having their armatures connected in the error signal circuit.
Patent GB-588923-A (GB)
Title: Apparatus for indicating transient voltages
IPC: H01J31/30
Filed: 1944-07-04
Abstract: 588,923. Peak-voltage measurements. FARNSWORTH TELEVISION & RADIO CORPORATION. July 4, 1944, No. 12722. Convention date, March 18, 1943. [Class 37] For producing a sustained indication of a transient voltage, a predetermined normal voltage is applied to a resistor to charge a condenser series-connected with the resistor and a rectifier, the rectifier being so poled as to charge the condenser to the peak value of a transient voltage impressed upon the resistor, and maintain the charge on the condenser so that a sustained indication of the transient voltage may be obtained. As shown, for testing the photosensitivity of the mosaic surface 2 of an iconoscope 1, a light impulse of known intensity is flashed by a lamp 8 on to a predetermined portion of the mosaic surface by opening the shutter 9. A positive impulse is thereby developed across the grid resistor 11 to increase the space current in an amplifier tube 10 and reduce the grid potential of the cathode follower 14. The tube 14 and succeeding amplifier tube 23 are energized from a potential divider consisting of regulator tubes 16, 17, 18 across the D.C. source 6, 7. Initially, with the potentiometer 24 adjusted so that the microammeter 25 takes current, the slider 21 is adjusted over the cathode follower resistor 15 so that no change in the deflection of the meter occurs whether a push-button switch 20 is opened (normal) or closed. The potential of the slider 21 is thus equal to that of the diode anode of tube 14 which differs from the cathode potential by an amount equal to the contact potential value between those two elements of the diode. The potentiometer 24 is thus adjusted until the meter 25 shows zero deflection. Consequently, when the incoming pulse reduces the grid potential of the triode portion of tube 14, as described above, the triode space current is reduced, the potential across the cathode follower resistor 15 is correspondingly reduced and the charge on the control condenser 19 follows this potential drop by discharging across the diode portions of tube 14. Because of the unilateral conduction of the diode the potential of the upper plate of the condenser remains at this lower (peak) value, indicative of the photosensitivity of the mosaic surface 2, even when the incoming transient voltage across resistor 11 has fallen to zero and the triode space current in tube 14 has reverted to normal. The sustained reduced charge on the condenser 14 correspondingly reduces the space current in tube 23 resulting in a sustained deflection of the meter 25 corresponding to the photosensitivity being measured. For a further test the switch 20 is manually closed to readjust the condenser charge to that of the slider 21 as above described.
Patent GB-869387-A (GB)
Title: Compression resistant rayon staple
IPC: D01D5/22
Filed: 1959-04-15
Abstract: Crimped regenerated cellulose staple fibres of improved absorbency and resistance to loss of interfibre volume are made by reacting cellulose pulp containing not more than 0,05% by weight of ether-extractable solids, preferably 0,01%-0,05%, with caustic soda containing not more than 0,8% by weight of hemicellulose, preferably not more than 0,7%, xanthating, dissolving the cellulose xanthate in caustic soda free of hemicellulose to form viscose, regenerating the viscose in a bath comprising between 5% and 8%, preferably 6,5%-7,0%, by weight of sulphuric acid to form filaments, stretching the filaments between 60% and 85%, preferably 70%-80%, in the bath, and cutting the filaments to staple fibre length, preferably between 1 and 2 inches, and especially about 1 1/8 inches.  The regenerating bath may also contain about 15%-22% by weight of sodium or potassium sulphate and about 0,75%-1,5% of zinc sulphate.  The staple fibres may be washed in fresh water and bleached in a solution of a soluble hypochlorite in amount sufficient to yield 0,1%-0,3% by weight of available chlorine at pH 9-12.  A solution containing 0,175% of sodium hypochlorite may be used for this purpose.  The staple fibres may be finished in a solution containing 0,01%-0,3% by weight of a polyoxyethylene monoether of sorbitan monolaurate containing about 20 ethylene oxide units per mole.  A preferred finishing solution contains 0,18% by weight of the said sorbitan derivative and about 0,4% of sodium bisulphite at a pH of about 5,0.  Regenerated cellulose staple fibres are obtained having a denier of 1 to 5,5 and crimps comprising helical bends numbering per inch at least 19 times the square root of the reciprocal of their denier, and capable of retaining their crimps when wet and relaxed.  Such fibres have, per 1,5 grams, an interfibre volume of at least 1,75 cubic inches in the dry state and of at least 1,00 cubic inch in the wet state, both measurements being made when the fibres are subjected to a pressure of 0,5 pounds per square inch.  The fibres can absorb between 26 and 35 times their weight of water. Desirably, the number of crimps per inch is 19 to 35 times the square root of the reciprocal of the denier, preferably 24 to 32 and especially 26 to 28 times, these lastmentioned fibres being able to absorb 26 to 28 times their weight of water. Specification 800,199 is referred to.
Patent GB-379719-A (GB)
Title: Improvements in or relating to warning horns
IPC: G10K9/04
Filed: 1931-05-01
Abstract: 379,719. Acoustic horns. TRICO PRODUCTS CORPORATION, 817, Washington Street, Buffalo, New York, U.S.A. May 1, 1931, No. 12893. Convention date, Oct. 3, 1930. [Class 13.] A fluid-actuated horn includes a casing 1 having a chamber 15 opening through a valve seat 6 and a connected trumpet 5 to the atmosphere, a vibrating member within the chamber supported in the casing by a number of radially extensible springs 11 to open and close successively the valve seat and means for connecting the horn to a source of operating fluid pressure. In one form, a conduit 16 connects the back of the member 8 to a source of suction, e.g. the intake manifold of a motorcar engine and when communication is made the member 8 is forced off its seat until the difference in pressure is overcome by the springs, whereupon the valve is forced back ; a succession of such movements causes a note to be emitted. The springs 11 rest against abutments 17 on the casing and the pressure with which the horn bears on the member 8 can be adjusted by screwing the horn into or out of the casing. The end of the horn is made with an enlargement 10 so as to increase the effective area of the member 8. In a modification, the abutments 17 are made adjustable. The member 8 is preferably non-metallic and an initial clear. ance may be provided between the end of the horn and the member 8.
Patent GB-676158-A (GB)
Title: Improvements in or relating to clothes washing machines
IPC: D06F17/12
Filed: 1950-05-23
Abstract: 676,158. Washing - machines; wringers. TOSSELL, S. J. May 23, 1950, No. 12906(50. Class 138 (ii). A washing machine comprises means for forcing air into a container 1 and a lid 16 adapted when closed to form a water-tight seal with the container walls and provided with means for permitting the free passage of air, steam or suds from the container into a collecting or retaining recess formed in the lid. The container 1 has a floor 3 on which is detachably supported by sponge rubber blocks 8 a perforated detachable clothes-supporting plate 9. The space 10 between the floor 3 and plate 9 is connected to a drain cock 7, and by a pipe 11 to a rubber nozzle 14. A cage 15 surrounds the nozzle 14 to assist the attachment of the air pipe A of a blower which may be constituted by a domestic vacuum cleaner. The registration of holes 43 in the pipe 11 and the nozzle 14 is variable by rotation of the nozzle in order to adjust the volume or pressure of the air supply. The lid 16 of the container 1 comprises a peripheral flange 28 in which is disposed a rubber gasket 27 for engagement with the container wall. The base 16a of the lid is depressed to provide a receptacle for condensed steam from the container. Steam enters through holes 38 (which may be covered by gauze) and is guided by a baffle-plate 37 to pass through holes 41. A drainage hole 25 in the base of the lid is sealed by a rubber pad 26 on the container wall, in the closed position of the lid. When the lid is open, water thus drains back from the lid into the container. The lid is hinged at 18 and secured by a catch 19, 20 and may be supported in the open position, Fig. 4 (not shown), by the engagement of the end of an arm pivoted to the lid at its other end, with a stop 24 on the container. In its inoperative position the arm rests on a further stop (when the lid is closed). A flanged cover may be placed over the lid (and extends also over the pipe 11) so that the container may be used as a table when otherwise inoperative. The nozzle and cage are then accommodated in the lid. The cover is located relative to the flange of the lid by registering blocks rigid with the cover. A U-shaped bar, not shown, plugs into sockets on either side of the container in order to provide the mounting for a wringer. When inoperative, the bar is secured in sockets 32 (one only shown) on the underside of the lid bottom 16a. A gas or electric heating ring may be provided in the space 4.