baber/WOPTO huggingface dataset:
Patent GB-799017-A (GB)
Title: Liquid fuel atomiser
Inventor: CLARE HAROLD
IPC: F23D11/24
Filed: 1955-07-14
Abstract: 799,017. Spray burners. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. July 5 1956 [July 14, 1955], No. 20390/55. Class 75(1) In a liquid fuel atomizer, e.g. for kerosene, and for use for example in a gas turbine combustion chamber, comprising a body 12 having a fuel discharge nozzle 15 in its end face and a casing 11 enclosing the body and having an end wall 19 spaced from and extending inwardly across the said end face, and having a central aperture 19a coaxial with the nozzle 15, with a view to reducing the deposition of carbon on the end face around the discharge nozzle 15, the edge, 19b of the aperture 19a is rounded, e.g. semi-circular, to merge smoothly into the inner and outer faces of the end wall 19 and means such as swirl plates 20, 22 are provided for discharging air radially inwardly through the space between the end face of the body 12 and the end wall 19 witn a swirling motion about the axis of the nozzle 15 in such a way that the air is caused to flow around the rounded edges 19b and radially over the outer face of the end wall 19a. As shown, the body 12 comprises an outer tubular sleeve 12 and a central insert 13 recessed on its outer surface to form an annular gallery 16 for fuel flow via swirl ports 17 to the internal swirl chamber 14 and thence to the nozzle 15 to be discharged as a conical spray. Between the end of the insert 13 and the end wall 19 are clamped a swirl plate. 20 an orifice plate 21 and a further swirl plate 22 all having central apertures doaxial with the nozzle 15, the apertures of the swirl plates being in communication with the annular air supply duct 18 between the casing 11 and sleeve 12 of the body by passages, 20a, 22a respectively as shown in Figs. 3 and 4, extending tangentially to the central apertures in the same sense. The edge 21a of the central orifice of the plate 21 is also rounded off, preferably in a semi-circular manner, or the orifice is of such size that the edge is clear of the fuel spray. The passages 22a are so proportioned that the radial component of flow is small compared with the tangential component so that the air flows around the edge 19a to flow outwardly over the end wall and reduce the deposition of carbon thereon. The swirl plate 20 and orifice plate 21 may be omitted.
Patent GB-1249523-A (GB)
Title: Frequency biased ratemeter
Inventor: BRANDON MARTIN
IPC: G01S13/34
Filed: 1969-04-23
Abstract: 1,249,523. Frequency discriminators. STANDARD TELEPHONES & CABLES Ltd. 23 April, 1969, No. 20646/69. Heading H3A. A ratemeter comprises: a first capacitor C 1  charged at a controlled rate, and periodically discharged at the frequency of an input signal; a second capacitor C 2  charged at a first constant rate and discharged at a second constant rate at the frequency of the input signal, the periods of time for which the second capacitor is discharged being determined by the time for which the voltage across the first capacitor exceeds a predetermined value; and means T 1 , T 2  for controlling the rate of charge of the first capacitor in dependence on the voltage across the second. A pulse generator (not shown) produces a short pulse at each positive going transition of the input signal, which switches on transistor F 1  to discharge capacitor C 1 . At the termination of this pulse C 1  charges through constant current source T 1 , T 2  until the next pulse. As C 1  charges, the gate potential of FET F 3  falls, and when it falls below a reference potential set by the gate potential of FET F 2 , transistor T 6  conducts to discharge capacitor C 2 . During the period from the commencement of charging of C 1  up to the point where T 6  conducts capacitor C 2  charges through T 7 , so that the average voltage on C 2  will depend on the frequency. The voltage across C 2  is utilized to control the constant currentcharging source for C 1 , so that the sensitivity of the circuit to lower frequencies is increased. In a modification, Fig. 3 (not shown), an excessive long charging ramp of C 1  in the event of an input failure is obviated by providing a clamp circuit (D 1 , T 8 ) which limits the maximum fall in potential at F 3  gate and isolates capacitor C 1  from T 6  by means of a further FET (F 4 ) when this limit is reached.
Patent GB-206795-A (GB)
Abstract: 206,795. Haddan, A. J. H., (National Cash Register Co.). June 9, 1922. Transfer-mechanism.-Transfer-mechanism of the externally-operated type and suitable for cash registers is described in connection with the multiple totalizers of Specification 203,995, and comprises a pawl adapted to be tripped at transfer and fo be subsequently restored by a cam-reciprocated bar to actuate through an intermediate pinion the totalizer wheel of the next higher denomination. Below each multiple totalizer shaft 265 is mounted a series of levers 374 pivoted at 260 and each carrying a transfer pawl 372 provided with a pin 371 normally supported by an ear 370 projecting from a vertical bar 369. With each totalizer shaft 265 is associated a parallel shaft bearing pinion 389 and a two-armed lever 383 connected by a sleeve 384 with a trip lever for each denomination except the units. At each operation of the machine a cam on the main shaft effects through rack and pinion a rotation of a shaft 362 and so through cams 364 successively displaced thereon and arms 366 lowers the bars 369. The pawl levers 374 are then supported only by the hooked arms 382 of levers 383 and when transfer occurs these levers 383 are rocked by the long teeth 394 through the trip levers and sleeves 384 and release the pawl levers. Towards the end of the operation of the machine and after the totalizers have returned from engagement with their actuating racks 225, shaft 362 is returned to raise successively the bars 369 so as to restore the pawl levers to latched position and through the pawls 372 and pinions 389 to effect transfers. While the totalizers and their transfer pinions are in normal position, the pinions are held by detent pawls, spring-connected to the transfer pawls, but when the totalizers are swung into engagement with the actuating racks the detent pawls are restrained by projections on the bars 369 and thus disengaged from the transferpinions.
Patent GB-1234897-A (GB)
Title: Improvements in or relating to balances
Inventor: KNOTHE ERICH
IPC: G01G1/28
Filed: 1969-04-24
Abstract: 1,234,897. Weighing apparatus. SARTORIUSWERKE G.m.b.H. April 24, 1969 [April 25, 1968], No.20887/79. Heading G1W. [Also in Division F2] A weight shifting device for a beam balance comprises a cam-shaft 18 drivably connected to a motor 22 by a stepping mechanism, the stepping mechanism being arranged to drive the cam-shaft so that it is prevented from assuming positions intermediate predetermined rotary positions. As shown, the stepping mechanism comprises a Maltese cross movement provided with a rotary member 24 connected to the motor 22 and a Maltese cross 26 connected to the cam-shaft 18 by way of reduction gearing 30, 32, the cross 26 being driven only when a pin 34 on the member 24 engages any one of the slots 28 of the cross. The cam-shaft 18 is provided with cams 16 which engage pivotally mounted levers 10 having forked ends 12 for lifting capacity weights 5, 6, the capacity weights 5, 6 being adapted to be supported on a carrier 3 which is secured to a load pan carrier 1 of the beam balance. Instead of a Maltese cross movement the stepping mechanism may comprise a worm and worm wheel arrangement in which the worm (42) Fig.4, 5 (not shown) is provided with a helical tooth which has only a portion inclined to the rotary axis of the worm.
Patent GB-339328-A (GB)
Title: Improvements in gear cutting hobs
IPC: B23F21/16
Filed: 1929-07-08
Abstract: 339,328. Triggs, W. W., (Berber-Colman Co.). July 8, 1929. Milling - cutters. - A gear - cutting hob has cutting-teeth 11 arranged so that the medial lines of the rear faces follow a helix 18<a> which is laterally offset from the normal thread helix 18 defined by the medial lines of the front faces. The teeth are thus inclined out of the thread helix preferably towards the shear side. The inclination of the teeth may be produced during the backing-off operation by moving the relieving- tool at an inclination to the normal to the hob axis, the tool being returned into the normal hob helix for the succeeding cut. When produced in this way the shear side 17 has insufficient clearance and the required clearance, preferably greater than the normal, is cut on this side by a second relieving operation. The additional side clearance tends to decrease the width of the top cutting faces 15 from front to rear but additional top clearance is provided to maintain a uniform width of the faces 15. In some cases, the clearance on the side 16 may be cut in a first relieving operation performed upon this side only of the teeth, a less clearance being subsequently cut on the sides 17 so that inclined teeth are obtained. The lead of the hob may be shorter than normal and the pressure angle reduced to 16‹ so as to obtain a hob, Fig. 3, which generates on a pitch line 22 different from the pitch line 20 of the normal hob, shown in dotted lines, having a pressure angle (20‹) equal to that of the gear being cut. For finishing hobs the top edges b, f and c, g mav be rounded to a radius of one-tenth of the pitch line thickness of the teeth but for roughing hobs the top edges are rounded to a larger radius.
Patent GB-630393-A (GB)
Title: Housing joint
IPC: F04C2/08
Filed: 1947-08-01
Abstract: 630,393. Rotary pumps or motors. WHITFIELD, J. E. Aug. 1, 1947, No. 20954. Convention date, Dec. 20, 1944. [Class 110(ii)] A housing built up of a number of sections 11, 12, such as described in Specification 558,740, with complementary cavities or bores such as 13, 14, 15 has sealing means on the mating end flanges 16, 17 comprising alternate axial extensions 20 and grooves 30. In a meshing-screw pump or engine, the rotors are arranged on parallel axes in the bores 13, 14, 15. A modified arrangement shows the extensions and grooves radially outwards from the bores.
Patent GB-140692-A (GB)
Title: Improvements in tyres
IPC: B60C7/20
Filed: 1919-08-26
Abstract: 140,692. Kawanishi, S. Aug. 26, 1919. Metallic spring bodies and cores.-Coiled springs 6 are fitted between pairs of curved plates 1, 1<1> having flanged edges 2 to prevent separation, such abutting units being clamped to the rim by bolts 4. The springs are secured by plates 3 fitted under the heads of the bolts 4, and by engaging in grooves in wood or like segments 4<1>. A wearing tread 8 of rubber or metal may be fitted as shown. Fig. 3 shows a modified form of spring in which the smaller coils 6<1>. Figs. 1 and 2, are replaced by open incurved portions.
Patent GB-994026-A (GB)
Title: Improvements in or relating to werner complexes and methods of clathration therewith
IPC: C07C17/38
Filed: 1962-05-31
Abstract: The invention comprises a Werner complex of the general formula Ni(SCN)2Xn which is insoluble or sparingly soluble, in water at room temperature, wherein X is an alpha-arylalkylamine of the formula <FORM:0994026/C2/1> in which R1 is either hydrogen or a primary alkyl group and R2 is a phenyl radical carrying at least two further alkyl substituents in any of the 3-, 4- and 5-positions, and n is either 2 or 4. Preferably R1 contains 1 to 6 carbon atoms and the alkyl substituents of the phenyl radical have not more than two carbon atoms.  The complexes may be made, for example, by adding a solution of the arylalkylamine in heptane, or heptane-chloroform mixture, at room temperature to an aqueous solution obtained by dissolving NiCl2.6H2O and KSCN in water, and separating the resulting precipitate by filtration. The complexes may be used to form clathrates with aromatic compounds and the complex may be formed in the presence of the compound to be clathrated.  The clathrate may be formed by heating a complex Ni(SCN)2X4 with one or more clathratable compounds to a temperature sufficient to bring about complete dissociation of the complex into Ni(SCN)2X2 and free amine, and then cooling to effect recombination of the dissociated components to form a clathrate consisting of Ni(SCN)2X4 and the clathratable compound. The complexes of the formula Ni(SCN)2X4 may be used to resolve a mixture of aromatic organic compounds containing at least one clathratable compound by forming a clathrate, separating the clathrate from the mixture and dissociating the clathrate to recover the organic compounds. The clathrate may be dissociated by heating, by treatment with an acid which does not react with the clathrated compound, by steam stripping or treatment with an inert solvent. Clathratable compounds which may be extracted or resolved are, for instance, a ,a ,a -tri -fluorotoluene, nitrobenzene, nitrotoluenes, di-, chlorobenzenes, trichlorobenzenes, cresols, and benzonitrile. Novel amines which are suitable for complex formation are a -(3,4-dimethyl phenyl) ethylamine and corresponding butylamine and heptylamine; a  - (3,4,5 - trimethylphenyl) - ethylamine and - propylamine; a -(3,5 - dimethylphenyl) ethylamine and a -(3,4,5 - triethylphenyl) ethylamine.  They may be made by reductive amination of the corresponding ketone, for example by heating the ketone with ammonium formate.  Specifications 931,775, 935,099 and 945,012 are referred to.
Patent GB-121739-A (GB)
Title: Improvements in and relating to Ignition Systems.
Filed: 1918-12-18
Abstract: 121,739. Dayton Engineering Laboratories Co., (Assignees of Chryst, W. A., and Hunt, J. H.). Dec. 22,1917, [Convention date]. Drawings to Specification. Channels and reservoirs in cams.-An ignition timing cam has an annular channel containing felt or like oil absorbing material, the oil being distributed through passages to the cam surface by the action of centrifugal force.
Patent GB-393785-A (GB)
Title: Manufacture of dyestuffs containing chromium
IPC: C09B45/16
Filed: 1932-07-27
Abstract: Azo dyes, chromium compounds of.--Azo dyes containing chromium of high solubility in water and very good equalizing power and giving on wool reddish blue and marine blue dyeings very fast to light are obtained by treating with an agent yielding chromium azo dyestuffs obtainable by coupling a diazotized halogen-2-aminophenolsulphonic acid with 1 : 5-naphtholsulphonic acid.  Specified diazo components are 4-chloro-2-aminophenol-6-sulphonic acid, 6-chloro - 2 - aminophenol - 4 - sulphonic acid, 4 - chloro-2-aminophenol-5-sulphonic acid and the corresponding bromo derivatives.  In an example the dyestuff 4-chloro-2-aminophenol-6-sulphonic acid --> 1 : 5-naphtholsulphonic acid is boiled for 15 hours under reflux with a solution of chromium fluoride, chromium formate, chromium sulphate or chromium chloride. An example of the dyeing process is given.  Specifications 26460/12, 260,830, and 295,050, [all in Class 2 (iii), Dyes &c.], are referred to.  4-Bromo-2-aminophenol-6-sulphonic acid is obtained by sulphonating p  4-bromo-2-nitrophenol and reducing the nitro group. 6-Bromo-2-aminophenol-4-sulphonic acid is obtained by nitrating 2-bromophenol-4-sulphonic acid and reducing the nitro group. 4-Bromo-2-aminophenol-5-sulphonic acid is obtained by sulphonating 4-bromo-2-aminophenol.
Patent GB-861297-A (GB)
Title: Improvements in or relating to stacking machines
Inventor: MACDONALD JOHN PARK ALLAN
IPC: B65G57/00
Filed: 1956-07-10
Abstract: 861,297. Stacking. SCOTTISH AGRICULTURAL INDUSTRIES Ltd. July 15, 1957 [July 10, 1956], No. 21329/56. Class 94(1). [Also in Group XXX] A device for stacking sacks &c. on a lorry or other support comprises a platform tiltable about one edge to cause the sacks to overbalance or slide on to the support. The platform is capable of adjustment to various heights and may be movable horizontally, in accordance with the stacking pattern. Sacks are fed by conveyer means 1 to a further conveyer 2 which forwards them down a roller ramp 3 to pass along the rollers 7 or wheels of the platform 4. The platform is then tilted by a shaft 10 to deposit the sacks on the stack or support. The apparatus runs on rails 13. The platform may be swingable upwards or sideways. Two platforms may operate one on either side of the conveyer 2. The sacks may be stacked on edge by turning the platform through 90 degrees to slide them on to the stack, or a stop adjacent the platform hinge or the speed of tilting causes them to turn through 180 degrees to be stacked flat.
Patent GB-1002654-A (GB)
Title: Process for the production of smokeless briquettes
IPC: C10L9/06
Filed: 1963-05-28
Abstract: Smokeless briquettes are produced from coal of low quality by pre-oxidizing the coal, at 3, to eliminate the coking capacity without substantially reducing the volatile content of the coal, pressing the coal into briquettes with a pitch binder, and subjecting the briquettes to a conventional thermal oxidation treatment.  The pre-oxidation is carried out with air and recirculated flue gas at a temperature in the range 350 DEG  to 500 DEG  C. while keeping the oxygen content of the gas mixture in the range 6 to 18% by volume. Coal slack enters at 1 and after pre-oxidation is air cooled at 4 before passing to a bunker 6. Air enters at 18, a controlled amount being preheated at 14 by waste gases, and at 4 by the slack, before delivery by a pipe 24 to a burner 8 supplied with fuel gas.  Hot gases from the burner are mixed at 9 with recirculated fine gas from a pipe 15 and preheated air from a pipe 23 for delivery to a rotatable drum 3, the gases leaving via cyclone separator 12 for recirculation through the pipe 15 and via heat exchanger 14 to atmosphere or to preheat the coal as required.  Controlling the amount of air preheated at 14 and 4 and the amount delivered to the burner 8 and to the mixer 9 controls the pre-oxidation conditions (i.e. temperature and volume percentage oxygen) as required.  The speed of rotation of the drum 3 is controllable and the amount of slack delivered to it.  Coal dust removed at 12 may be returned to slack emerging from the drum 3. <PICT:1002654/C4-C5/1>
Patent GB-862837-A (GB)
Title: Improvements in or relating to the production of smoke from sawdust
Inventor: NICOL DONALD LAURENCE
IPC: F41H9/06
Filed: 1956-07-10
Abstract: 862,837. Smoke-producing apparatus and methods. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Oct. 10, 1957 [July 10, 1956], No. 21379/56. Addition to 781,591. Class 81 (1). In the production of smoke from sawdust by partially burning or otherwise decomposing it by heat while it is maintained as a fluidized bed as described in the parent Specification the apparatus comprises a diverging fluidization chamber of annular form. As shown in Fig. 1, the apparatus comprises a Venturi tube 11, 12 with an inserted body consisting of two cones 13, 14 base to base, the maximum diameter coming at the Venturi throat 15 at which is also provided the grid 15A to prevent the sawdust falling lower. The remainder of the apparatus, not illustrated, for the supply of air or other gas and sawdust, the heating of the gas and the removal of charred residue may be as described in the parent Specification. Instead of the lower cone 14, a rounded body may be used. As shown in Fig. 2 instead of the tapering lower section 12 a cylindrical lower section 16 may be used, the central body as before being two cones 13, 14 base to base or a cone and a rounded body, with a maximum diameter at the junction of the cylinder 16 and the diverging walled chamber 11, the entry section 16 being made double walled, the air or gas being blown e.g. by an electric fan in at 17 between the walls near their upper end, then escaping below the lower edge of the inner wall 18 and sweeping past vertically arranged electric heaters 19. The double-walled entry and the diverging chamber may be surrounded by insulating material 23 within a cylindrical casing 24, a section 25 of which in the neighbourhood of the junction with the diverging chamber being removable to permit access to the diverging chamber and the double-coned body 13, 14 which may be of hollow metal. A conical hood 26 arranged over the upper end of the diverging chamber 11, and terminating in a cylindrical skirt 27 causes the suspended particles to fall downwardly while smoke rises outside the skirt, the whole being arranged within a cylindrical outer casing 28 from which a junction pipe 29 leads at the top to carry away smoke, while at the lower end a hopper 31 is provided through which the charred particles may be discharged continuously or from time to time. The sawdust is delivered from a hopper 36 in which two sides only at a time converge to a metering device comprising a worm 35 in a chamber 39 having an opening 38 through which the sawdust falls in front of an air nozzle 41 and is then discharged through an injecting tube 34. According to another feature a layer of a granular inert material e.g. sand or alumina having a melting point above 500‹ C. which does not react with air or sawdust at say 400‹ C. is used below the sawdust, the material having a particle size and density such that it requires a higher velocity for fluidization than does the sawdust.
Patent GB-1081483-A (GB)
Title: Improvements in or relating to electric switches
Inventor: HARRIS WILLIAM GEORGE LOVELL
IPC: H01H15/10
Filed: 1963-05-29
Abstract: 1,081,483. Lampholders; snap-action switches. WARD & GOLDSTONE Ltd. May 28, 1964 [May 29, 1963], No. 21419/63. Headings H2B and H2E. A switch for a lampholder adapter of a known type (Fig. 1, not shown) comprises a current-carrying channel 14 (Fig. 2), having an upturned tab 30 at one end to support the switch operating push-bar 15, half of the base remote from this tab 30 being severed from the adjacent parts of the side walls and being formed with a screw-hole 31 as well as having an integral narrow extension 23. Extension 23 carries a spring which acts upon a slidable pin contact member of the adapter. Two side tabs 32 are bent inwards from the channel 14 as shown to form another support for the push-bar 15. The snap action effect is provided by tumbler lever 18 which is mounted between the push-bar 18 and the fork member 13, and carries spring 21 which is increasingly compressed as the tumbler lever 18 moves into the dead-centre position.
Patent GB-461499-A (GB)
Title: Self-adjusting, spring-balanced, anti-friction bearing, applicable to railway carriage axles
IPC: B61F15/06
Filed: 1935-11-06
Abstract: 461,499. Vehicle - axle bearings. LIDSTONE, F. M., and CRUICKSHANK, C. J. Nov. 6, 1935, No. 21440. [Class 12 (i)] To reduce the initial draw-bar pull on vehicles the bearing bush C is mounted in the axle box A so that it can make a limited circumferential movement against the action of springs D, E. A series of bearing rollers mounted in a cage F are located between the upper surface of the bush C and a pad G fixed in the axle-box. The cage F is centralized by springs L, M. Rollers H, J, are arranged between the bush C and the members carrying the springs D, E. When the axle B commences to rotate, the bush C moves circumferentially slightly due to the static friction at the bearing surface and afterwards returns to the central position.
Patent GB-405633-A (GB)
Title: A process for the dephosphorizing of steel
IPC: C21C7/064
Filed: 1932-07-29
Abstract: In a process for dephosphorizing steel by means of a molten oxidizing basic slag, the slag is used in such fluid condition and the slag and molten steel are subjected to such turbulence that an emulsion-like mixture of metal and slag is produced.  The process may be carried out by pouring the molten steel in a thick jet from a considerable height on to the slag or by pouring the steel rapidly into a receptacle, such as a ladle, at the same time as the slag.  The metal after treatment may be treated again in a similar manner with the slag.  In carrying out the process in a converter, the steel is dephosphorized in the usual manner, the blast stopped and the oxidized slag removed.  A molten fluid oxidizing basic slag is now charged over the steel and the blast resumed for a short period to effect turbulent intermixing previous to running.  A slag comprising 3 per cent by weight of silica, 65 of lime, 20 of iron oxide and 12 of fluorspar is referred to.