baber/WOPTO huggingface dataset:
Patent GB-965534-A (GB)
Title: Improvements in or relating to reactor moderator block assemblies
IPC: G21C5/16
Filed: 1960-08-16
Abstract: 965, 534. Moderator structures. BABCOCK & WILCOX Ltd. (Deutsche Babcock & Wilcox Dampfkesselwerke A. G.) Aug. 16, 1960, No. 14632/64. Divided out of 965, 533. Heading G6C. The care of a nuclear reactor comprises a plurality of blocks 2 of moderator material, e.g. graphite, arranged within a cylindrical retaining means 3, the blocks 2 having plane side faces parallel to the axis of the retaining means 3 and faces of laterally adjacent blocks 2 being in contact, and adjustable laterally expansible bracing units 6 adapted to effect bracing of the blocks 2 laterally against one another and against the retaining means 3 by the conversion through wedge means of forces parallel to the axis applied to the bracing units 6 to lateral forces acting between the blocks 2. Each bracing unit 6 comprises five assemblages 8 of six axially extending metal contact bars 9 arranged in a cylindrical ring and, between each pair of adjacent assemblages 8, a hexagonal metal compression wedge 10. The six wedge faces on each side of the wedge 10 engage corresponding wedge faces at the ends of the adjacent bars 9 so that when compression forces are applied resiliently (by means not shown) to two external compression wedges 11 associated with each bracing unit 6, the bars 9 are forced radially outwardly from the axis of the bracing unit against the adjacent blocks 2. One bracing unit 6 is central while the other bracing units 6 lie in three equispaced radial planes. Lateral expansion of the bracing units 6 causes the three cylindrical sectors 1a, 1b and 1c into which the core is divided by the arrangement of bracing units 6 to move away from one another, gaps 7 being formed or increased between the adjacent faces of adjacent blocks 2 in the different sectors.
Patent GB-854452-A (GB)
Title: Improvements in or relating to electric circuit arrangements for use in installations for the transmission of information
IPC: H04L25/49
Filed: 1958-05-07
Abstract: 854,452. Electric selective-signalling systems. SIEMENS & HALSKE A.G. May 7, 1958 [May 9, 1957], No. 14649/58. Class 40 (1). In a signalling system in which voltage amplitude significant signals are sent from a transmitter S 1 ,Fig. 1, over a line a to a receiver having amplitude responsive devices A1, A2, An, a reference signal is also transmitted over a line b to the receiver where it alters the response level of the devices A1, A2, An, whereby errors due to variations in power supplies and the like are minimized.
Patent GB-888072-A (GB)
Title: Hydro-mechanical variable-speed gears
IPC: F16H45/00
Filed: 1959-04-29
Abstract: 888,072. Motor driving arrangements. VOITH G.m.b.H., J. M. April 29, 1959 [April 29, 1958], No. 14673/59. Class 35. [Also in Groups XXIV and XXXI] In a driving system comprising a hydromechanical variable-speed gear having one purely mechanical power path and an hydraulic power path in parallel, and both paths being in driving connection with a main shaft of the system through a planetary gear, an electric motor 51 drives a shaft 32 incorporating an hydraulic coupling 37, 37 and torque converter 40, and a second motor 52 drives a shaft 38 carrying the sun-wheel 36 of the planetary gear, the shaft 32 carrying a pinion 43 meshing with the annulus 44 and the planets 45 being connected to the output shaft 47. The motors are of the type which are non-speed controllable or only partially so.
Patent GB-182644-A (GB)
Title: Escapement mechanism and ribbon feed for typewriting machines
IPC: B41J19/18
Filed: 1921-05-27
Abstract: 182,644. Golby, F. W., (Federal Adding Machine Corporation). May 27, 1921. Letter spacing mechanism; space-key actions.-The spring- drum casing is secured beneath the top plate of the framework, and pivotally supports an escapement yoke or rocker which is pivoted on an axis intersecting that of the escapement-shaft; the yoke is operated by a reciprocating universal bar or independently by the space-key. The spring- drum casing 21, secured beneath the top plate 22, is formed with arms 36 provided with pivotscrews 37 for an escapement yoke 35, the axis of the pivots intersecting the shaft of the escapement-wheel 28 and feed-pinion 23. A reciprocating universal bar 13, suspended from links 14, is formed with forked arms 19 engaging pins 40 secured to arms 39 on the yoke. The universal bar is actuated by the type-levers 12 upon operation of the printing-keys, and upon release of the keys, the universal bar and yoke are returned by springs 18, 50. The space-key actuates the yoke independently of the universal bar by means of a rocking arm 54 which engages a finger 53 on the rocker. The yoke carries a fast dog 43 and a loose swinging dog 45 which co-operates with the escapement-wheel, the fast dog being secured to a lug 42, and the loose dog being mounted on a screw 46 and drawn towards a stop 44 by a spring 47. The escapement-wheel is loose on the shaft and carries a coupling-pawl 29 which engages a ratchet-wheel 31. Carriage-releasing arrangements and brakes.- The loose dog 45 is formed with a slot 49, Fig. 2, engaging the screw 46, and can be moved outwards to release the carriage by means of a lever 64 which is pivoted on the yoke 35 and engages a notch 65 in the dog, and an arm 69 connected to a releasing-bail 70. Upon release of the carriage, a brake shoe 75 is moved into engagement with a disc 27 on the escapement-wheel shaft, the shoe being carried by a bail 73. The bails 70, 73 mav be operated by the tabulating-stops 79. Ink-ribbon mechanism.-The escapement yoke 35 is connected directly to the ink-ribbon spools 93, preferably by means of arms 88 having pawls 91 engaging ratchet-wheels 92. The arms may be pivoted on screws 89 on the yoke, springs 90 permitting lateral movement of the arms in reversing the feed. The vibrator 96, Fig. 1, is connected to a lever 98 having a part 99 engaging the head 100 of an arm 101 on the universal bar 13. To adjust the vibrator when the platen is shifted, the lever-support 102 is adapted to be raised by the platen-shift mechanism, the part 99 sliding on the head 100 during the shift movement. The lever-support may be arranged to slide on a guide 103. The vibrator is not actuated' by the space-key.
Patent GB-354792-A (GB)
Title: Improvements in or relating to the controlled withering of tea leaf and similar material
IPC: A23F3/08
Filed: 1930-05-14
Abstract: 354,792. Withering tea; controlling humidity of air. MAIN, J. A., Clydesdale Ironworks, Possilpark, Glasgow. May 14, 1930, No. 14828. '[Class 34 (ii).] To provide air at the desired humidity for withering tea, the air is first cooled to a temperature below that required, and then heated to the required temperature with or without the admixture of outside air. The air may be compressed at 1, Fig. 1, into a holder 2; the temperature, which has thus risen, is first lowered by external sprays 3, and then the air is allowed to expand, with deposition of dew, at valve 4. Additional air as required may be drawn in at 5 to raise the temperature say to 57‹ F., and the supply finally is heated by a. coil 7 say to 70‹ F. In Fig. 2 the air, drawn in by a fan 10, is cooled and saturated by naturally or artificially cold water sprayed into it at 8, heating coils 11 being provided in the withering chamber. A store of cold water may be obtained by passing into the water compressed air from which the heat of compression has been removed. Or the water may be cooled either by passage through tubes sunk in the earth, or by allowing it to fall at night in a cooling tower.
Patent GB-438887-A (GB)
Title: Manufacture of condensation products of the formaldehyde-urea type
IPC: C08G12/04
Filed: 1934-05-17
Abstract: Non-hardening products are prepared by condensing urea, formaldehyde and hexamethylenetetramine with or without the addition of an acid catalyst in the proportion of 1 molecule of hexamethylenetetramine to 1 to 10 molecules of urea and 1 to 2 molecules of formaldehyde to each molecule of urea.  Other substances capable of reacting with formaldehyde such as thiourea, phenol, acetamide, oxamide or aniline may be mixed with the urea and the hexamethylenetetramine may be added as a whole or in parts.  Starch, gum arabic, animal glue tragacanth or glycerin may be added to modify the properties of the condensation mixture. The products which may be dried may be used for gumming paper or pasteboard, for stiffening and dressing fabrics, as protective colloids, for glueing wood and as cements in the manufacture of safety glass.  In examples, hexamethylenetetramine is condensed with urea, formaldehyde with or without the addition of oxalic acid and with or without the addition of phenol, urethane, thiourea, gum arabic, starch flour or animal glue.  Reference has been directed by the Comptroller to Specification 429,346.
Patent GB-496392-A (GB)
Title: Improvements relating to dynamo regulators
IPC: H02P9/24
Filed: 1937-05-29
Abstract: 496,392. Automatic control systems. C.A.V.-BOSCH, Ltd., GLASER, W. H., and WOOD, N. R. May 29, 1937, No. 14978. [Class 38 (iv)] Electromotive force.-In a regulating system for a variable speed dynamo a a carbon pile c is arranged to be short-circuited or inserted in the circuit of the field b under control of contacts e, operated by an electromagnet d provided with a voltage coil g and a bucking coil h the pile c being compressed by magnetic or spring means j and being extended by means of a member operated by an electromagnet k provided with opposed windings n, o which are connected respectively in parallel with the armature a or a battery supplied therefrom and in parallel or series with the field winding b. Energization of the coil u may be controlled by associating therewith a variable resistance such as part of the pile c or a separate carbon pile.
Patent GB-593123-A (GB)
Title: Improvements in or relating to change speed gears
IPC: F16H63/30
Filed: 1945-06-13
Abstract: 593,123. Change-speed and reversing- gearing; facilitating change of speed. VICTORIA MACHINE TOOL CO., Ltd., SELBY, J., and FRYE, J. June 13, 1945, No. 14991. [Class 80(ii)] Machine tool and other gearing speed changes are facilitated by the insertion between the prime mover and gearing of an epicyclic transmission mechanism which normally drives solid but whose transmission ratio can be greatly reduced to inch the gearing during speed changes, the mechanism comprising a driving planet carrier whose two stepped planets mesh respectively with a driven sun and with a sun which can be alternatively clutched to one of the other epicyclic elements or held stationary. As shown, applied to a preselective change-speed gearing of the kind described in Specification 587,604, the transmission mechanism comprises a pulley 5, Fig. 1, driven by a belt 4 from the output shaft 2 of an electric motor and journalled on the input shaft 6 of the gearing (not shown). Two stepped planets 9, 8 internally mounted in the pulley 5 mesh respectively with a sun 11 keyed to the shaft 6 and with a slightly smaller sun 12 on a sleeve 13 freely journalled on the shaft 6. Slidably splined on the sleeve 13 is a clutch member 14, normally spring-urged to the right to engage positively through dogs (not shown) the pulley 5 for direct drive, but movable to the left by a lever 18 when a solenoid 17 is energised to engage frictionally a coned braking member 15 for a greatly reduced reversed drive. The initial movement of the operating lever 7, Fig. 2, of the change speed gearing shifts a movable contact bridge 22 from contacts 26 to contacts 23, thus completing the circuit of the solenoid 17 and also reversing the direction of rotation of the electric motor 1 through solenoids 27w, 29w operating switchgear 27, 29 controlling the three-phase input L 1 -L 3 , so that the pulley 5 is moving slowly when the dogs engage and so that the shaft 6 is caused to rotate in its original direction during the gear change. On completing the change, the lever 7 returns the contact bridge 22 and restores the original drive. A manual reversing-switch 28 is provided in the motor control circuit. When used with non-preselective gearing, which may have two or more operating levers, the solenoid 17 is separately operated by a manual master switch. To obviate motor reversal, the member 14 may engage the pulley 5 frictionally when, according to the Provisional Specification, the transmission mechanism will be arranged to provide a forward drive on both its ratios. A positive detent, alone or with a slipping friction coupling, may replace the friction brake 14, 15.
Patent GB-605266-A (GB)
Title: Improvements in devices for testing eyesight
IPC: A61B3/04
Filed: 1945-06-06
Abstract: 605,266. Sight-testing devices. HEALY, J. R. June 6, 1945, No. 15019. [Class 97 (i)] The device comprises two annular bands of transparent material having several lens sections thereon which on one side are each formed with spherical surfaces and on the other side with cylindrical surfaces of progressively varying radii, the bands being mounted with their axes orthogonal and one within the other with their spherical surfaces adjacent so that each may be rotated about its own axis to bring together two overlapping lens sections which can be presented like a spectacle lens before the eye to be tested. As shown a bowl 12, which is a minor segment of a sphere, has formed thereon an annular band 13, the inner surface of which is spherical while the outer surface thereof is cylindrical and has a curvature varying in steps. Within the bowl 12 and disposed with its axis orthogonal thereto'is a similar bowl 14 having an annular band 15, the outer surface of which is spherical while the inner cylindrical surface has a curvature varying in steps. At the pole or each bowl is a spindle, mounted in bearings in a frame 16, so that each bowl may be rotated about its own axis ; this frame may be provided with a pointer co-operating with an index on the annular band to indicate the focal powers of the lens sections in front of the eye. The frame may also be provided with scales and be rotatable about the line of sight so that a cylindrical connection may be determined when necessary. Each bowl and annular band may be formed from plastic material such as polymethyl methacrylate.
Patent GB-437130-A (GB)
Title: Anatomic splint
IPC: A61B17/64
Filed: 1934-05-18
Abstract: 437,130. Surgical fracture appliances. ANDERSON, R., 1319, Medical Dental Building, Seattle, Washington, U.S.A. May 18, 1934, No. 15093. Convention date, Oct. 10, 1933. [Class 81 (ii)] A splint for reducing limb fractures comprises a pair of traction devices which are provided with means for transfixing a limb, and means are provided also for relative rotation and angular adjustment of the traction devices in order to bring the fractured bones into position for setting. The apparatus comprises a base frame made up of parallel rods 3 joined rigidly to transverse end members 1, 2, and a crossbar 4 which slides on the rods 3 and is moved along them by means of a leading-screw 40. Curved brackets 5, 6, are secured to the member 2 and the crossbar 4, respectively, and these brackets carry at their upper ends bearing-members 7 in which U-shaped yokes 10 are mounted. The members 7 can be rotated about an horizontal axis relatively to the yokes and secured in any position of adjustment by bolts 15. The yokes 10 slide between flanges 17 on the members 7, and are clamped in position by bolts. Each yoke is provided at its ends with slots 25 for seating and clamping a cross rod 26, a traction pin 27, or the stem of a U-shaped retaining-pad 28. The pin 27 is provided with a collar 30 to limit the extent to which it enters a limb. When used for reducing a fracture of the forearm, the pin 26 is passed through the upper end of the ulna, and the ends are clamped in the slots 25 in the yoke on the bracket 5. The traction pin 27 is inserted in the wrist, the wrist is then applied to the pad 28, and the pin is clamped in its slot in the yoke, as shown in Fig. 7. Traction can then be applied to the limb by separating the yokes by means of the screw 40, and the yokes can be turned relatively to one another to bring the fracture bones into proper position for setting. A cast or splint may be applied to the arm and allowed to set. A hand-supporting bracket may be attached to the bracket 6 if desired. In a modified construction, the bracket 6 extends to one side of the crossbar 4, and in another construction, the brackets 5, 6 are dispensed with, the bearing-members being secured to the crossbars 2, 4 and the yokes moving in vertical planes. Auxiliary traction pins may be attached to the movable yoke if desired.
Patent GB-385849-A (GB)
Title: Automatic drain devices for storage tanks of air-compressors
IPC: F04B39/16
Filed: 1932-05-27
Abstract: 385,849. Air compression and storage. KUDOLLA, M. P., 4958, Lawrence Avenue, Chicago, U.S.A. May 27, 1932, No. 15113. [Class 8 (i).] An air-compresser 12 is driven by a motor 16 and delivers to a tank 10. The motor circuit is controlled by a make-and-break switch 20 actuated by a pressure responsive device 24 so that the pressure in the tank varies between maximum and minimum limits. An automatic drain device 26 is secured to the base of tank and comprises a spring-loaded piston 33 of sufficient width to cover the ports 42, 43 leading to an annular chamber 41. When the maximum pressure is reached, the moisture flows through ports 42 and upon a fall of pressure drains through ports 43.
Patent GB-496716-A (GB)
Title: Improvements in and relating to the coating with metal of glass tubes or bulbs for use in electric lamps
IPC: H01J61/04
Filed: 1937-05-31
Abstract: 496,716. Silver coatings. BRITISH THOMSON-HOUSTON CO., Ltd., SCOTT, W. J., and MILNER, C. J. May 31, 1937, No. 15118. [Class 82 (ii)] Silver is coated upor a glass tube or bulb, for use in electric lamps, for example the lamp referred to in Specification 485,787, or for other purposes, by mounting within the bulb a tube or wire of non- volatile metal provided with a uniform coating of silver just sufficient tc coat the bulb to a predetermined thickness, evacuating the bulb, and heating the metal to cause the silver to be completely evaporated therefrom and to be deposited on the bulb. In the Figure, a nickel tube 1 plated on the outside with silver to the required extent, is heated by a tungsten filament 2 insulated from it by a quartz or steatite tube 3. The nickel tube forms the return lead for the electric circuit. The nickel is heated and the whole of the silver volatilized on to the glass tube 9. Reference has been direcetd by the Comptroller to Specifications 360,826 and 436,792.
Patent GB-1253719-A (GB)
Title: Improvements in or relating to multiplex signal transmission systems with pulse code modulation
IPC: H04J3/16
Filed: 1969-03-24
Abstract: 1,253,719. Multiplex pulse code signalling. MARCONI CO. Ltd. 24 March, 1969 [11 April, 1968], No. 15193/69. Heading H4L. [Also in Division G4] In a time division multiplex P.C.M. system the number of bits per sample is dependent upon the amplitude of the sample and means are provided for reducing the number of bits for a given amplitude if an overload condition occurs so that the number of bits per frame is kept within a predetermined number. As described, forty-eight P.A.M. channels are fed into a store and then to an encoder. While the signals are being stored the encoder generates a train of forty-eight code identification bits comprising a "1" bit if the signal sample level exceeds a predetermined value and a "0" bit if it is below this value. A counter counts the number of "1" bits in this pulse train and in dependence on this number selects the coding to be adopted for the signal samples. For example, if the number of "1" bits is less than or equal to eight, coding for the samples below the predetermined level is expressed by two bits and for those above this level seven bits are used. When the number of "1" bits is greater than eight but equal to or less than sixteen, samples below the predetermined level are coded with one digit and above this level with six digits. Finally, if the number of "1" bits is greater than sixteen, samples below the predetermined level are not coded and those above are coded using five bits. The encoder sends an eight bit synchronizing signal every one millisecond, i.e. eight frames for a channel sampling frequency of 8 Kc/s., and at the end of this signal the forty-eight identification bits are transmitted, followed by the coded signal samples. This sequence is repeated each millisecond, the memory being scanned and the appropriate identification sequence of bits transmitted to provide an indication at the receiver of which coding is in use.
Patent GB-640495-A (GB)
Title: Apparatus for use in the determination of the ignition quality of diesel fuels
IPC: G01N25/50
Filed: 1948-06-07
Abstract: <PICT:0640495/III/1> <PICT:0640495/III/2> In an apparatus for determining the cetane number of a Diesel fuel, comprising a valve 10 controlling the air flow through ports 8, Fig. 2, into a surge chamber 7 connected at 24 to the intake pipe of a test engine operating on the fuel, the valve 10 being slowly rotated to close the ports 8 until the engine misfires, at which position the cetane number is read off a calibrated scale 37 attached to the valve, the control edge 40, Fig. 2, and the parts 8a of the ports are so arranged that the angular position of the valve at misfire is in linear relation to the cetane number of the fuel.  The intake air flows through pipes 28 ... 31 in a temperature regulating water jacket 25 to a chamber 35 and then through the ports 8 to the chamber 7.  The valve 10 is rotated by synchronous electric motor 23 on energization of a solenoid 22a forming a magnetic clutch with a plate 22b on a shaft 21 carrying a pinion 20 engaging a gearwheel 19, and it is mounted between ball-bearings 11, 12, carried respectively by a springloaded plunger 13 and a screw 16 for axial adjustment of the valve if the conditions of the test differ from those at which the apparatus was calibrated.  When the solenoid 22a is de-energized, a spring 41 moves the shaft 21 so that its end 42 is engaged for manual rotation by a wheel 44.  The test engine is started with the ports 8 fully open, as shown in Fig. 2, and the solenoid 22a energized to start the valve rotation.  The puff of smoke in the exhaust on misfire may actuate a photo-cell to de-energize the solenoid 22a, or it may be de-energized manually to stop the rotation, the cetane number being then read off.
Patent GB-302863-A (GB)
Title: Process and device for extracting essential principles or gums from tobaccos of all kinds
IPC: A24B15/26
Filed: 1928-05-25
Abstract: 302,863. Seferiadis, B. March 19, 1928, [Convention date]. Tobacco.-Gums &c. are extracted from tobacco by means of acetone, in a vat 1 having a double perforated base. An inclined duct 5 leads the dissolved substances to a boiler 6 heated by a steam coil 7. The solvent distils and passes by a tube 9 and cooler 10 to a collecting chamber 11 above the vat 1 and communicable therewith through a cock 12. A cock 8 permits the contents of the boiler 8 to be drawn off. The action within the vat 1 may take place under pressure, or the solvent may be sprayed in. The materials so extracted may be used as described in Specification 298,151.