baber/WOPTO huggingface dataset:
Patent GB-634882-A (GB)
Title: Hydrocarbon synthesis
IPC: C07C1/04
Filed: 1947-09-03
Abstract: In the synthesis of hydrocarbons and oxygenated derivatives from carbon monoxide and hydrogen by contact with a fluidized bed of powdered iron catalyst, the bed is maintained in fluidized condition, as evidenced by a high heat transfer coefficient, by adding more coarsely ground iron powder responsive to the tendency of the powdered iron in the bed to disintegrate into smaller particles.  The particle size of the catalyst bed is desirably maintained so that a major proportion of the particles are greater than 20 microns and preferably there is less than 20-25 per cent of fines of less than 20 microns.  Where the percentage of such fines approaches 30-40, coarse material of 80-200 micron size is added in amount of, say, 60 per cent of the total weight of catalyst so that a major proportion of the catalyst particles has a particle size of 80-200 microns. Preferred temperatures are 525-650 DEG  F. and pressures 250-700 p.s.i.  The lowering of the heat transfer coefficient as catalyst particles disintegrate, and the increase after addition of coarse material is exemplified. Catalysts made from spent pyrites or catalyst used in ammonia synthesis are suitable.  Regeneration may be effected by burning off carbon, resintering, and grinding if necessary.  Such regenerated catalyst may be that of 80-200 microns added to the fluidized bed.ALSO:In the synthesis of hydrocarbons and oxygenated derivatives from carbon monoxide and hydrogen by contact with a fluidized bed of powdered iron catalyst, the bed is maintained in fluidized condition, as evidenced by a high heat transfer coefficient, by adding more coarsely ground iron powder responsive to the tendency of the powdered iron in the bed to disintegrate into smaller particles.  The particle size of the catalyst bed is desirably maintained so that a major proportion of the particles are greater than 20 microns and preferably there is less than 20-25 per cent of fines of less than 20 microns.  When the percentage of such fines approaches 30-40, coarse material of 80-200 micron size is added in amount of, say, 60 per cent of the total weight of catalyst so that a major proportion of the catalyst particles has a particle size of 80-200 microns.  Preferred temperatures are 525-650 DEG  F., and pressures 250-700 p.s.i.  The lowering of the heat transfer coefficient as catalyst particles disintegrate, and the increase after addition of coarse material is exemplified. Catalysts made from spent pyrites or catalyst used in ammonia synthesis are suitable. Regeneration may be effected by burning off carbon, resintering, and grinding if necessary.  Such regenerated catalyst may be that of 80-200 microns added to the fluidized bed.
Patent GB-358196-A (GB)
Title: Improvements in route and locality indicators for use in railway and other vehicles
IPC: B60R7/04
Filed: 1930-08-14
Abstract: 358,196. Moving- map indicators for vehicles, ships, and trains. NICOHOSOFF, E., 5, Rue Fouad Ier, Alexandria, Egypt. Aug. 14, 1930, No. 24334. [Class 118 (i).] A moving-map indicator for railway or road vehicles or ships consists of a casing 2 with a front glass 5 having horizontal and vertical scales 7, 7a which intersect in a pointer mark 8 to indicate the position of the vehicle on a strip map moving behind the glass. This map bears a line 13 representing the route surrounded by features of interest or use shown in their true perpendicular distances according to the scales 7, 7a from the line 13, and is moved by an actuating roller 34 driven from the running gear of the vehicle. The lower half of the glass 5 may be coloured to distinguish the route traversed from that to come. Straight portions of the route are shown by straight lines in the margin 11 of the map, curves to the right being shown by displacing these lines to the left and joining the two straight portions by a quadrant 25 as shown in Fig. 1. For turnings a two-pronged fork is used instead of a quadrant, and curves or turnings to the left are shown by displacing the straight lines to the right. The level portions of the route are shown by lines 32 in margin 11a parallel to line 13, high levels being on the left and low on the right, the slanting lines 33 joining these indicating the slopes. The perpendiculars from surrounding features meet line 13 in points corresponding to the feet of corresponding perpendiculars in the ordinary map shown, Fig. 3, except for turnings such as 15a in which the corresponding points are the intersections of route 13 with lines joining the points to the inner corner 29 of the turning. Small pins 60 inserted in the map cause contacts 63 to touch momentarily and thus ring the alarm bell 69 at fixed points. The map may be endless or may extend between spring barrels 37, 38, and in this case when all the map is wrapped on barrel 38 it may be removed and a fresh barrel and map substituted.
Patent GB-761772-A (GB)
Title: Improvements in or relating to rollers for applying paint and the like
IPC: B05C17/02
Filed: 1953-09-03
Abstract: <PICT:0761772/III/1> <PICT:0761772/III/2> A paint roller comprises a supporting structure having means adjacent each of its ends for supporting it on a rod of a handle, a substantially rigid sleeve detachably mounted on the supporting structure and having a paint-receiving material rigidly secured on it, and means connected to the suporting structure and positioned one at each end of the sleeve to prevent axial movement thereof relative to the supporting structure.  As shown, the supporting structure comprises a cylinder 10 mounted between end closure members 13, 14 which support it on a rod 17 extending from a handle 15 and are located by split pins 31. A rigid sleeve 30 made, e.g. of tinplate or aluminium, has paint-receiving material 29, e.g. lambswool, secured to it by adhesive and is mounted on the cylinder 10 and retained between flanges 27, 28 on the members 13, 14.  The members 13, 14 may removably engage the cylinder 10 by screw-threads, as shown, or they may be lever-operated, or the cylinder 10 may be moulded in one piece with one end 13 closed.  As shown in Fig. 3, the sleeve 30 may be formed with an inturned flange 33 at one end, the flange being gripped between the end of the cylinder 10 and flange 27 on the closure member 13.  Specification 761,756 is referred to.
Patent GB-661144-A (GB)
Title: Improvements in or relating to dental crowns and methods of securing them
IPC: A61C5/73
Filed: 1949-09-23
Abstract: 661,144. Artificial teeth. EGGER, L. Sept. 23, 1949 [July 6, 1946], No. 24479/49. Class 81 (ii). A polymerized plastic tooth crown is affixed to the stump of a natural tooth by a polymerizable plastic material. As shown the natural tooth 1 is suitably ground before affixing a polymerized plastic crown 2 formed with ribs 3 and provided with a neck reinforcement 4 of braided glass or cellulosic fibres by means of a polymerizable plastic filling 6. Chemical reaction binds the plastic filling and the crown inseparably together so forming a homogeneous plastic body. The crown may be of translucent material whilst the filling may be coloured to suit the colour of adjacent teeth.
Patent GB-908972-A (GB)
Title: Arc welding and cutting device
IPC: B23K9/28
Filed: 1959-07-16
Abstract: 908,972. Arc welding torches. OERLIKON MACHINE-TOOL WORKS ADMINISTRATION CO. July 16, 1959 [July 17, 1958], No. 24502/59. Class 39 (3). [Also in Group XXII] In a gas shielded arc welding or cutting torch having a consumable or non-consumable electrode accommodated in a central bore in a core and a gas nozzle releasably attached to and concentric with the core, the gas nozzle is cooled by a medium supplied through ducts in the core to an annular cooling chamber located internally of the nozzle. The core consits of concentric member 4, 5, soldered together and non-rotatably mounted on an inner member 1. A nut 11 on the inner member 1 engages the outer members 4, 5, to close a collet 3 on a non- consumable rod electrode 2. The core carries a nut 28, a rigid ring 21, flexible rings 25, 27 and a fixed ceramic ring 26, which serve to insulate the gas nozzle 20 from the core. Compression of the flexible rings 25, 27 by the nut 28 causes these to frictionally engage the nozzle 20. Gas is supplied by pipe 14 to an annular space between the core members 1 and 4, and passes through slots in the collet 3 to the nozzle 20. Cooling water is passed through tubes 13a, 13b and ducts 12, 12a in the core to annular spaces formed by interconnected recesses 23, 24 in the ring 21.
Patent GB-440669-A (GB)
Title: Automatic rove or yarn stop mechanism for spinning and like textile frames
IPC: D01H13/18
Filed: 1934-08-27
Abstract: 440,669. Rove-stop mechanism for spinning &c. machines. LOW & CO., Ltd., J. F., Monifieth Foundry, Monifieth, Angus, and LAMBERT, O., 6, Cauwerherg, Tamise, Belgium. Aug. 27, 1934, No. 24588. [Class 120 (ii)] The retaining - rollers 1 of spinning and like machines are coupled to a sleeve 3 on the driving-shaft 4 by clutch means disposed within the roller and comprising locking-elements 7, 8 co-operating, under the action of springs 9, with cam surfaces 11 in a recess 6<a> in the roller 1 in such manner that, when running normally, the driving is effected by the element 8, and when a bush 5 is arrested by a yarn feeler 16 upon breakage, the abutment 12 disengages the element 8 from the cam surface and the roller is free, overrunning being prevented by the engagement of the element 7 with the cam surface. The bush 5 is unitary with a wheel provided with teeth 23 adapted for engagement with a claw 22 upon the upper arm of the yarn feeler.
Patent GB-223905-A (GB)
Title: Improvements in grinding articles of circular cross section
IPC: B24B5/18
Filed: 1924-10-16
Abstract: 223,905. Heim Grinder Co., (Assignees of Heim, L. R.). Oct. 22, J923, [Convention date]. Rollers, spindles, rods, tubes, and the like, treating; guides and rests; trueing rotating wheels.-In a machine for grinding cylindrical, conical, &c. work, the work is supported on a carrier 41 between a grinding-wheel 14 and a regulating-wheel 17. The grinding- wheel is reciprocated axially by a yoke engaging the shaft 13 of the wheel, the yoke being rocked bv an arm 35 secured to a shaft 25. The shaft 25 is slidably supported in a bracket 34 secured to a slide 11 carrying the grinding-wheel 14 and is supported also in a bracket 33 movable with a slide 15 carrying the regulating-wheel 17. On the shaft 16 of the regulating-wheel is a gear 18 driving a shaft 19 mounted in brackets 33, 57 on the slide 15. The shaft 19 drives a shaft 20 carrying an adjustable throw crank-pin, a roller on which engages a slot in an arm 28 loosely mounted on the shaft 25 and adjustably connected by a bolt 31 and a slot 30, with an arm 26 secured to the shaft. Rotation of the shaft 16 thus produces oscillation of the shaft 25, and through the arm 35, reciprocation of the shaft 13. By leaving the bolt 31 loose and by adjustment of bolts 32, lost motion is provided and the shaft 25 is rocked to a less extent. The upper surface of the work carrier is inclined towards the regulating-wheel, and this wheel is reciprocated towards and from the grinding-wheel, thus allowing finished work to fall from the carrier into a receptacle. The regulating wheel is reciprocated by a cam 50 adjustably mounted on the shaft 19 and engaged by a roller on an arm 48 clamped in a bracket 47 secured to the bed of the machine. Shouldered work rests against a cut-away part 43 of the work-carrier; plain work is fed through the machine by disposing the axis of the regulating-wheel and the face of the carrier at an angle to each other. Conical or taper work is ground by the use of a conical regulating-wheel, the work-carrier bisecting the angle between the operative faces of the regulating-wheel and of the grinding-wheel. The wheels are trued by means of diamond tools adapted to be reciprocated across the wheel faces.
Patent GB-894267-A (GB)
Title: Improvements in master clocks
Inventor: BURGESS FRANK WILLIAM
IPC: G04C13/06
Filed: 1959-07-17
Abstract: 894,267. Clocks. SYNCHRONOME CO. Ltd. June 29, 1960 [July 17, 1959], No. 24631/59. Class 139. The pendulum 10 of a master clock carries a driving pawl 11 which actuates a count wheel 12 which has a deep notch 14 so that once for every revolution of the count wheel, the pawl 11 engages a notch 19 at the end of a pivoted lever 15 which is thereby moved to close a switch 17, 20 to transmit an impulse to slave clocks. The lever 15 may be raised by a wire member 22 carried by a manually operable lever 24 so that the switch 17, 20 is closed on every swing of the pendulum.
Patent GB-678383-A (GB)
Title: Means for frequency stabilization
IPC: H03L7/26
Filed: 1949-09-26
Abstract: 678,383. Frequency measurements. RADIO CORPORATION OF AMERICA. Sept. 26, 1949 [Nov: 4, 1948], No. 24679/49. Class 37. [Also in Groups XXXV and XL (b)] The frequency of an oscillator is stabilized by the use of a molecular-resonant gas cell, the transmission-frequency characteristic of which, T2, Fig. 1c, has a maximum at a standard operating frequency fg and a minimum at slightly higher and slightly lower frequencies f1, f2. This characteristic may be produced by subjecting the cell to a magnetic field, or by the use of a gas or mixture of gases having closelyspaced absorption lines. As shown in Fig. 2, the oscillator 10 feeds through a guide 11 to the cell 12, which is subjected to a magnetic field by coils 14 energized by a D.C. source 15 in series with an A.C. source 16. The wave amplitude at the cell output, which varies in the rhythm of the A.C. is detected by a rectifier 19, amplified at 20, and applied as one input to a phasecomparer 18. The other input is supplied from the A.C. source 16 through a phase-adjuster 17. Output from the phase-comparer 18 varies in sign and magnitude with the frequency deviations of the oscillator 10 and is used either to indicate the error, or to correct it as by connecting the output in the reflector electrode of the klystron 10. In a modified circuit, Fig. 4, the cell 32 which has a transmission characteristic as shown at T2, Fig. 1c, is traversed by waves from an auxiliary oscillator 29 whose frequency is swept over a range including the frequency at which the cell gives maximum transmission. A pulse output from the cell is compared in phase at 18 with the pulse output obtained by mixing at 28 the frequency-swept waves 29 with waves from the main oscillator 10, and passing the beat frequencies through a filter 30 and tuned amplifier 31. The phasecomparer output is a measure of the frequency deviation of the main oscillator 10. In Fig. 6 (not shown), the cell 32, Fig. 4, instead of providing closely-adjacent absorption lines by virtue of the use of a chosen gas or mixture of gases, makes use of a gas with a single absorption line which is split by applying a unidirectional magnetic field to the gas Reference has been directed by the Comptroller to Specification 663,065.
Patent GB-241011-A (GB)
Title: Flexible jawed spring clip
IPC: B62H1/00
Filed: 1924-10-17
Abstract: 241,011. Southam, G. M., Bonfield, J. W., and Eade, W. J. Oct. 17, 1924. Supports. - A clip for holding the cross-rod of a motor-cycle stand when out of use comprises two jaws A, B of flexible material, the longer one B being secured to the back mud-guard and carrying a lever C. Upward movement of the rod presses back the lever C, its end E engaging a recess H in the arm A to hold the jaws open till the rod in descending to its final position Presses the lower arm of the lever down. Jaws G may be provided on the jaws A, B to hold the rod securely.
Patent GB-1405377-A (GB)
Title: Electromagnetic repulsion device actuating the movable contact member of a circuit interrupter
IPC: H01H73/04
Filed: 1973-05-23
Abstract: 1405377 Circuit breaker drive MERLIN GERIN 23 May 1973 [26 May 1972] 24737/73 Heading H1N An electromagnetic drive device which drives the contacts of a circuit breaker apart under fault current conditions comprises a magnetic circuit 24 having confronting pole faces deflning between them an air gap 26 in which is positioned a movable induction plate 28 forming part of or attached to a contact member 10 which carries the movable contacts 12, 14 and through which the fault current passes. When fault current conditions arise the magnetic circuit is excited by the field created by the fault current in the contact member 10 and eddy current in the induction plate 28 react with the field B in the air gap to repel the armature plate out of the air gap thus carrying the contact member and the movable contacts with it. In a more complex arrangement, Figs. 4, 5 (not shown), a set of arcing contacts with arc-chutes are present in addition to the main contacts 12, 14, 16, 18, and an armature is arranged to be operated by current flowing in supply conductors 20, 22. When a minor short-circuit current flows this armature is operated and through a system of lost motion links and springs causes first the main contacts to separate then the arcing contacts. If however a major short-circuit current flows the induction plate 28 is blown out of the air gap as described above and the main and arcing contacts separate at once, the lost motion links not being involved in this case.
Patent GB-1292237-A (GB)
Title: Indexing mechanism for horological instruments
IPC: G04C3/06
Filed: 1971-04-19
Abstract: 1292237 Watches TIMEX CORP 19 April 1971 [27 March 1970] 24755/71 Heading G3T An indexing mechanism for a timepiece, e.g. an electric or electronic watch, comprises an index lever 18 oscillated by balance means 10 impulsed by means (not shown), an index wheel 27 having a plurality of teeth engaged by the lever 18, and a drag disc 37 mounted on the wheel 27 and having a plurality of teeth engaged by the end of a blade spring 33 to prevent reverse movement of the index wheel. A V-shaped magnetic draw lever 31 mounted on the lever 18 co-operates with a magnet 32 to hold the lever 18 in its extreme positions against banking pins 19, 21.
Patent GB-996215-A (GB)
Title: Improvements in or relating to consistency control devices
Inventor: MACLAURIN MICHAEL IAN
IPC: D21F1/08
Filed: 1961-07-07
Abstract: 996,215. Regulating flow and consistency of paper pulp. WIGGINS TEAPE RESEARCH & DEVELOPMENT. Ltd. Oct. 8, 1962 [July 7, 1961], No. 24765/61. Heading D2A. [Also in Division B1] In apparatus for controlling the rate of flow a and viscosity or consistency of a liquid mixture, pulp or slurry, the mixture (e.g. a paper stock) is supplied through a valve 12 to a flow pipe 11 having an orifice plate 14 and terminating in a viscosity tube 16. The bulk of the mixture is discharged from the flow pipe 11 through the pipe 22 and valve 23. For any setting of the valve 23, variations in the rate of flow due to changes in pressure of the supply cause a variation in pressure upstream of the orifice plate 14, which is sensed by the detector 24 and used to make compensating adjustment of the valve 12. Variation in the consistency of the mixture will cause variation in pressure upstream of the viscosity tube 16, which will be sensed by the detector 25 and used to actuate valve 18 to make compensating adjustment of the flow of added water. An agitator 19 is situated six pipe diameters upstream of the orifice plate 14. The orifice plate may be at the outlet of the viscosity tube and the valve 12 may be between the water inlet and the agitator.
Patent GB-1425927-A (GB)
Title: Automatic control systems and methods
IPC: G05B19/27
Filed: 1972-05-26
Abstract: 1425927 Automatic control ALFRED HERBERT Ltd 1 May 1973 [26 May 1972] 24876/72 Heading G3N A servosystem comprising a programmable digital computer producing a digital demand signal, representing desired change in a controlled, which is fed, together with a digital feedback signal, to a counter, the output from which is fed through an analogue-deriving means to a servo controlling the value of the variable. As shown, the position of a load 10 is monitored by a transducer 12, producing two pulse trains having a 90 degree phase difference. The pulse trains are processed in a converter 14 which produces a signal 16 on a change of state of either pulse train and by internal logic, a signal 18 for positive travel and a signal 20 for negative travel. The signals 18, 20 are fed to gates 22, 24, respectively, so that a gating signal on a line 28 opens the gates to pass position pulses to up and down inputs of a counter 26. A demand signal from a computer 30 is fed through a gate 32, enabled by a clock signal 34, to a digital counter 36 which is counted down by pulses through a gate 46. At zero count the pulses are stopped by an inhibit gate 48. The contents of counter 36 are transferred to count up or down the counter 26 through gates 38, 40 controlled by a sign digit through the gate 32, and an inverter 42 for the gate 40. The contents of counter 26 represents the difference between the demand and feedback value on through a digital-toanalogue converter 52 energizes a servo, comprising an amplifier 56, a servovalve 58 and a ram 60, positioning the load 10.  Acceleration feedback to the input of the amplifier 56 is provided by a transducer 62.
Patent GB-1506851-A (GB)
Title: Shortening mobile aerials
IPC: H01Q1/08
Filed: 1975-06-05
Abstract: 1506851 Injection moulding fibre reinforced aerial L JESMAN 5 June 1975 [5 June 1974] 24984/74 Heading B5A [Also in Divisions H3-H5] A mobile aerial (see Division H4) is formed utilizing an injection moulding process in which a long coil 12 of steel wire is encased in a two-part mould 21, 22 having independently temperature controlled spaced injection means 1-6. The coil, which is wound on a glass fibre rod support 24, is supported in the mould at sites 25 opposite each injection means. The material used for the moulding-varies in composition from, for example, 70% nylon to 30% glass at the thicker end at means 1 to nylon only at the thinner end at means 6. The ribbed cross-section of the moulding tapers from one end to the other (Figs. 1-3, not shown).
Patent GB-534624-A (GB)
Title: Improvements in piping elements and process and outfit for manufacturing same
IPC: F16L25/00
Filed: 1939-08-31
Abstract: 534,624. Making concrete pipes. SOC. ANON. DES HAUTS-FOURNEAUX ET FONDERIES DE PONT-A-MOUSSON. Aug. 31, 1939, No. 25035. Convention date, Jan. 27, 1939. [A Specification was laid open to inspection under Sect. 91 of the Acts, March 16, 1940.] [Class 87 (ii)] [Also in Group XXVIII] A concrete pipe has metal end-pieces 6, 7 provided with grooved projections 4 on which are hooked the loops or hooked ends of longitudinal reinforcing wires 2. The wires may be in zig-zag form with parallel, oblique or crossed strands. The loops or hooked ends may be varnished. A reinforcing wire 12 may be wound round the pipe and covered by concrete 20. The wire 12 is hooked to the shoulder 11 of the end-piece 7 and is secured to the end-piece 6 by a hooked member 16 lying in a recess 17. The wires 2 may be held in tension during moulding. The end-piece 6 engages one end of the mould 24, Fig. 5, and the end-piece 7 is retracted by screws 29 which bear on the other end of the mould and screw into keys 30 engaging the end-piece 7 and a guidering 31. Stressing may be effected by electrical heating of the wires before screwing up and subsequent cooling before moulding.