baber/WOPTO huggingface dataset:
Patent GB-507271-A (GB)
Title: Power transfer circuit
IPC: H03F1/54
Filed: 1938-08-19
Abstract: 507,271. Valve circuits. STANDARD TELEPHONES & CABLES, Ltd. Aug. 19, 1938, No. 24481. Convention date, Sept. 2, 1937. [Class 40 (v)] A spare amplifier is brought into operation automatically when the output from a working amplifier becomes sub-normal, the amplifiers being changed over by removing a blocking bias from one and creating a blocking bias on the other. An alarm circuit may be completed whenthe spare amplifier is in use. Under normal conditions amplifier 5 is in use, the grid of the valve being connected through R5 to a point at earth potential on potentiometer 8 which comprises resistances R1, R2, R3 whilst the grid of the spare amplifier 5<1> is maintained at a potential of - 24 volts over resistances R4 and R6. A pair of gas discharge valves 12 connected in parallel (one valve only would suffice) have their plates connected between R1 and R2 on potentiometer 8 so that the normal voltage relative to the cathodes is 114 volts, whilst the potential of their grids is determined by rectifier bridge 13 fed from the output 3 of amplifier 5. If the output falls below a predetermined amount, the negative bias on one or both tubes 12 drops below the firing point of the tubes so that current flows in the tubes. This produces a voltage drop of about 24 volts across R4 so that the blocking bias on the spare amplifier is removed and this amplifier becomes active. At the same time the voltage at the junction of R2 and R3 is materially lowered so that a blocking bias is created on the normal amplifier 5. A relay A may be provided as shown to close an alarm circuit when the spare amplifier is in use. The return to normal output on the circuit 3 does not affect the discharge across tubes 12. The apparatus may be restored to normal when required by momentary operation of key 17. Key 18 enables the spare amplifier to be put into use when tests are to be made on the normal amplifier 5.
Patent GB-674225-A (GB)
Title: Method of and means for balancing engines or compressors of the reciprocating type
IPC: F16F15/26
Filed: 1949-09-30
Abstract: 674,225. Balancing reciprocating engines. HAMILL, W. W., CRUMP, R. S., and MEADOWS, Ltd., H. Sept. 30, 1949, No. 24486/48. Class 122(iii) In a reciprocating engine or compressor in which secondary forces are balanced by two balancing members rotating in opposite directions at twice the crankshaft speed, the balancing members comprise a pair of shafts each having several axially spaced portions, one for each piston. The shafts are disposed below the crankshaft in a detachable housing below which the sump is secured and each comprise journal portions 8 separated by balancing portions 2 of uniform cross-section consisting of two concentric segments of different radius joined by surfaces tangential to the segment of smaller radius.
Patent GB-1431149-A (GB)
Title: Sheetfeeding equipment
IPC: G06K13/103
Filed: 1974-06-03
Abstract: 1431149 Feeding sheets DECISION DATA COMPUTER CORP 3 June 1974 [1 June 1973] 24488/74 Heading B8R A pile of cards 11, Figs. 1 and 3, piled on edge on support plates 18 having supporting ribs 18a is urged by a spring-operated paddle member 24 against a throat roller 23, and on actuation of a clutch 50, the front card is transferred downwards by rollers 45 through a throat defined by the roller 23 and a plate 19, until it abuts a stop plate 47, when it is sensed by a photoelectric detector 60, the clutch 50 being then opened. A magnet 58 is then energized, whereupon a pinch roller 55 mounted on a plate 56 pivoted at 57 presses the card against a continuously rotating separator roller 53, which engages the rear face of the transferred sheet below the plates 18 and feeds it sideways, to the left in Fig. 1. Two assemblies 11, 18, 18a, 24, 23 50, 19, 47, 60, 58, 55, 53 are provided, whereby cards can be selectively separated from the two piles, the rollers 55 being mounted on a common plate 56, and the feed paths from each pile converging.
Patent GB-1215332-A (GB)
Title: Centrifugal strainer with adjustable rotary impeller discharge
IPC: B04B3/04
Filed: 1968-05-22
Abstract: 1,215,332. Centrifugal strainer with rotary impeller discharge. ERNST HEINKEL MASCHINEN BAU G.m.b.H. 22 May, 1968 [16 June, 1967], No. 24514/68. Heading B1D. The rotary impeller discharge for residue which failed to pass through the strainer 9, 10 of a centrifugal strainer comprises a plurality of sleeves 11 individually secured on a shaft 5, each sleeve supporting a semi-annular inclined impeller plate 13 (see also Fig. 2, not shown). The basket and the impeller are rotatable at independent speeds. As described, sleeves 11 are axially adjustable, being secured by set screws 12 to shaft 5. Hence the time that the suspension tarries in different regions of the basket may be controlled. Incoming suspension at 14 passes through a distributor 15-17. The basket comprises a filter screen 10 and discharge holes 9. Basket and impeller are respectively driven by pulleys 4, 8 through variable gearing from a common prime mover.
Patent GB-913440-A (GB)
Title: Control apparatus for conveyor and distributor installations
Inventor: WALLER SIEGFRIED
IPC: B65G47/50
Filed: 1960-07-14
Abstract: 913,440. Endless conveyers. SIEMENSSCHUCKERTWERKE A.G. July 14, 1960, No. 24634/60. Drawings to Specification. Class 78 (1). As each of a succession of articles is fed on to an endless belt conveyer provided with a plurality of discharge stations, a signal is recorded on a disc or roller which is provided with a layer of magnetic material and which is rotated in synchronism with the conveyer, and a scanning head is associated with each discharge station to actuate discharge means when an appropriate signal is detected on the disc or roller. Each scanning head comprises a Hall generator and a voltage relay so that if a signal on the disc or roller is of a magnetic intensity which produces a Hall voltage in the scanning head corresponding to a pre-set value in the voltage relay, the corresponding discharge device will be actuated. The different magnetic intensities on the disc or roller are obtained by supplying currents of different intensity to a recording head as the articles are fed on to the conveyer in accordance with the desired discharge stations; A device is provided upstream of the recording head to cancel previous signals on the disc or roller, which is geared to rotate through less than 360 degrees while an article on the conveyer travels from the delivery station to the most distant discharge station. In a modification, a separate track is provided on the disc or roller for each discharge station and a recording head is provided for each track.
Patent GB-400397-A (GB)
Title: Improvements in or relating to securing devices
IPC: F16B9/02
Filed: 1932-09-03
Abstract: 400,397. Cotters. STEVENS, A. H., 5, Quality Court, Chancery Lane, London.- (Weatherhead, A. J.; 708, Frankfort Avenue, Cleveland, Ohio, U.S.A.) Sept. 3, 1932, No. 24637. [Classes 89 (i) and 89 (ii).] A cylindrical part 12 having a flange 10 is secured in a hole in a plate 6 by a cotter 7 which engages with recesses 14. The cotter is of U-shape and is held in position by an upstanding ring 21 and by its corners 22, 23 embedding in the plate 6. With hard plates, the corners 24, 25 also are sharp. A flange 26 may be provided for engagement by fixing tools. The legs of the cotter may have inclined surfaces 30. The cotter may be used to secure a choke control to the dashboard of a motor vehicle ; or in conjunction with a bolt having a number of pairs of recesses it may be used for securing together a number of plates.
Patent GB-259948-A (GB)
Title: Pectin product and process of producing the same
IPC: A23L29/231
Filed: 1926-10-05
Abstract: 259,948. California Fruit Growers Exchange, (Assignees of Jameson, E.). Oct. 17, 1925, [Convention date]. Gums, carbohydrate and like.-Pectin preparations, crude or partly purified, which generally have a pH value too low for effective or regulated jellification, are treated with a salt of a strong base and a weak acid in such proportions that the pH of the finished product lies between 3.4 and 7, but not including 7. Where the pectin product has been purified with a strong acid, and contains traces of it, the product may be suspended in alcohol and the strong base-weak acid salt added in proper amount, after which the pectin is separated, washed with alcohol and dried. Alternatively the pectin product may be mixed with the proper amount of the dry salt, so that when dissolved, the pH will fall within the defined limits. In a modification, particularly for use with pectin products which have not been treated with strong acid, in addition to the dry salt, dry organic acids such as citric or tartaric acids are mixed;, so that when dissolved the pectin is standardized as to pH. Suitable salts comprise sodium citrate or acetate; and effervescent salts such as sodium carbonate or bicarbonate are particularly effective in promoting ready solution and reaction. The amounts of salt or acid to be added are determined by titration of the pectin products in alcoholic suspension with standard alkali, or by making sample jellies with pectins containing varying known amounts of salt &c. Specification 239,635 is referred to.
Patent GB-817650-A (GB)
Title: Vapour-liquid separating apparatus
IPC: B01D45/08
Filed: 1956-08-13
Abstract: 817,650. Centrifugal separators. BABCOCK & WILCOX CO. Aug. 13, 1956 [Aug. 19, 1955; Sept. 22, 1955], No. 24732/56. Class 23 [Also in Group XIII] A ring of cyclone separators is positioned in a vapour-liquid separating drum (see Group XIII). The drum 12 has inlets 24 leading into a duct 25 to which the tangential inlets 34 of the separators 32 are connected. Each separator comprises a whirl chamber 60, a baffle 72 within the chamber, a pressure distributing outlet 44 for the vapour, and an annular outlet 66 for the liquid having whirl-removing vanes 68. The separated liquid flows through tubes 64 and is discharged radially through outlets 76 into the liquid in the drum.
Patent GB-338191-A (GB)
Title: Improvements in or relating to arrangements for amplifying alternating voltage variations
IPC: H02P9/26
Filed: 1929-08-13
Abstract: 338,191. Dicker, S. G. S., (Naamlooze Vennootshap Philips' Gloeilampenfabrieken). Aug. 13, 1929. Regulation, automatic.-The voltage of an alternating-current generator 13 is kept constant by an arrangement comprising two rectifiers 3, 4, the cathodes 6, 8 of which are heated by current supplied by the generator, one rectifier has its cathode connected to one 2 of the terminals of the generator or an impedance, on which is impressed a voltage proportional to the generator voltage, the other rectifier has its anode 7 connected to the. same terminal, and the other anode 5 and cathode are connected to one end of an impedance 9, from which amplified fluctuations are led to the cathode 17 of a third rectifier 16 in parallel with the exciting winding 15 of the generator and in series with a common current-limiting resistance 14.
Patent GB-278348-A (GB)
Title: Improvements in and relating to electric incandescent lamps intended to be used in series
IPC: H01K1/70
Filed: 1927-09-21
Abstract: 278,348. Eckhardt, F., and Hohnekamp, M. Sept. 30, 1926, [Convention date]. Supplying consuming devices.-In devices of the kind described in Specification 277,961 for maintaining the circuit when one of a number of lamps connected in series fails, wherein the resistance of a normally non-conducting body connected in parallel with the filament of each lamp is broken down when a filament fails, the resistance is composed of particles of ores, e.g. pyrites, glances, or blendes. The material may be mixed with metal oxides or, in known manner, with other conducting or non-conducting substances.
Patent GB-172098-A (GB)
Title: Improvements in or relating to candles
IPC: C11C5/00
Filed: 1920-08-28
Abstract: Candles are prevented from adhering to the socket of the candle-holder by being coated with a preferably non-inflammable substance such as tin-foil, impregnated or coated paper, or a layer of asbestos or aluminium paint.  The coating may be combined with or adapted to form a grease-catcher, and may be applied to the lower part only of the candle, or to its whole length.  It may be perforated at intervals to permit the candle to be cut into short pieces.  Reference has been directed by the Comptroller to Specifications 209/81, 1569/92, 17687/00 and 16132/05.
Patent GB-1510523-A (GB)
Title: Disposable syringe cartridge
IPC: A61M5/148
Filed: 1975-06-11
Abstract: 1510523 Hydraulic reciprocating pumps  IVAC CORP 11 June 1975 [28 Feb 1975] 24942/75 Heading F1A Pumping apparatus 20 for the intravenous administration of liquids comprises a vertically arranged piston 23 and cylinder 22 pumping unit in the form of a disposable syringe cartridge 21, the cylinder 22 having an end 22a which slopes upwardly towards an outlet nipple 52 whereby any gas bubbles in the pumped liquid enter an output tube 34 and are subsequently removed. The piston 23 consists of a plastics piston head 23 with an integral piston-rod 24 and a rubber sealing cap 56 mounted over the head 23. The sealing cap 56 includes peripheral ribs 56a, 56b which act as piston rings and a frusto-conical sealing boot 56c doubled back over and sealed by a bead 56d to the outside of the cylinder 22. The way in which the unit is mounted in a housing of the apparatus, Fig. 3 (not shown) and how the way incorrect mounting is indicated from the subjects of Specifications 1510525 and 1510524. When properly mounted the output tube 34 and an input tube 33 over-lie respective spring-loaded pressers 43a, 44a, the latter being alternately lifted clear of the tubes by a valve control system 40 which includes a camshaft 41 driven by a D.C. stepping motor 29. Rotation of the motor 29 is converted into reciprocation of the drive-shaft 27 by the final gear 72 of a gear train 31 being screwed on to a leadscrew 70 of the drive-shaft 27. Operation of the motor 29 is indicated by the rotation of a wheel 76 having peripheral markings and rotated by the motor through a belt 79.
Patent GB-429995-A (GB)
Title: Improvements in or relating to silicon steels and methods of making the same
IPC: B21B3/02
Filed: 1933-09-08
Abstract: 429,995. Rolling sheets. FREELAND, E. M., 1625, Ohio Avenue, Youngstown, Ohio, U.S.A. Sept. 8, 1933, No. 24944. Convention date, Sept. 13, 1932. [Class 83 (iv)] Cold rolling working at specified temperatures; physical or molecular structure, altering by mechanical treatment.-Silicon steel sheets or coiled strips for cores of transformers &c. are made from ingots 1 by hot rolling at 2 and 4 always in one direction. The steel should contain from 0À1 to 6 per cent of silicon and the last hot rolling pass 9 is given after reheating the strip 5 in a furnace 8 to or near the recalescence temperature, i.e. 1380‹ F. for 3 per cent of silicon. The strip may be pickled at 6. In a modification, the parts inside the line L are omitted and a furnace inserted at 18. The strip may be finally annealed or normalized as at 12 or coiled at 11 or more than one of these. The strip 5 may also be cold rolled at 21, Fig. 13, or 33<n>, Fig. 15, to introduce slight or considerable strain and then be annealed or normalized preferably at over 1600‹ F. Considerable strain may be either completely removed by annealing or normalizing and then a slight strain imposed by slight cold rolling at 21, Fig. 13, or it may be partly removed by annealing in two stages 46, 47, Fig. 15, the one consisting in passing through 30 feet of furnace at 1900‹ F. in two minutes and the other being annealing at 1400-1700‹ F. The strip 5 may be coiled at 11 before any annealing or normalizing step and may be cooled in the flat at F, Fig. 13, before final coiling at 32. When sheets are required the strip may be straightened at 44, Fig. 15, and sheared at any stage 14 after the first hot rolling 4.
Patent GB-242606-A (GB)
Title: Improved container for storing medical injection needles
IPC: A61M5/32
Filed: 1925-10-08
Abstract: 242,606. Hasselmann, O. Nov. 5, 1924, [Convention date]. Fittings, internal.-A container for storing medical injection needles comprises a frame having end discs a, c and a central disc b. The discs a, b are provided with borings having countersunk entrances for the reception of sterilized needles x and the discs b, c with borings in staggered relation to the first set for the reception of used needles x<1>. End-caps d, e are screwed against a flange a' on the disc a. Communication between the used and sterilized needles is prevented by small drops of water introduced into the countersunk parts of the borings by the sterilized needles.
Patent GB-1430709-A (GB)
Title: Seat belt retractor
IPC: B60R22/405
Filed: 1974-06-06
Abstract: 1430709 Seat belt retractor ALLIED CHEMICAL CORP 6 June 1974 [15 June 1973] 25155/74 Heading A3V A seat belt retractor includes an inertia wheel 19, mounted in a rotatable bracket 8 which initiates locking of a pawl with ratchet wheel 32 if the webbing is withdrawn rapidly or if pendulum 52-5 responds to abnormal vehicle motion. The bracket is rotatable about the stub end of the reel shaft and is urged clockwise by a spring 33 attached to an adjustably positioned lever 37. The wheel is driven directly from the stub or via a spring- urged clutch plate (17 Fig. 2 not shown). If the belt is rapidly withdrawn, lag of the inertia wheel rocks the bracket, so that depending arm 26 pivots the locking pawl. Any movement of the pendulum 52-5 raises lever 56 into contact with the periphery of the inertia wheel. Any movement of the belt thereafter locks the reel . The pendulum is adjustable. The ratchet wheel may be located on the outside of the housing 1, permitting a small, light pawl to be used.
Patent GB-793506-A (GB)
Title: A shock-stick or voltage generator rod
IPC: F41B15/04
Filed: 1956-08-17
Abstract: 793,506. Truncheons. TURNER, R. G Oct. 29, 1956 [Aug. 17, 1956], No. 25209/56. Class 119 A shock stick comprises a hollow rod 1 with a grip or handle 2 and containing a battery of dry cells 3 connected through a switch (not shown) to a vibratory contactor 4 that makes and breaks the current from the battery to the primary 5 of an induction transformer, the secondary 6 of which is connected to metal 7 and/or metal points at the end of the rod to produce there a high alternating voltage. Anyone or any animal contacted by the metal end of the rod will receive a high voltage-lowcurrent-shock, either by reason of the selfcapacity to earth or by contact between the live points.
Patent GB-916325-A (GB)
Title: Improvements in or relating to nuclear reactors
Inventor: BAUER STEFAN GEORGE
IPC: G21C15/20
Filed: 1958-08-06
Abstract: 916,325. Reactors. ROLLS-ROYCE Ltd. July 29, 1959 [Aug. 6, 1958], No. 25271/58. Class 39 (4). In a nuclear reactor with a fluid moderator and a high-pressure coolant, fuel and coolant channels are defined by a thin tubular wall which is surrounded by a thicker tubular wall made of a material of lower neutron absorption than that of the thin wall, the space between the two walls containing a heat-insulating gas at a pressure near that of the coolant so as to support the thin inner wall. An Al reactor vessel 10 contains Al pressure tubes 28 # inch thick enclosing stainless steel tubes 14- which are about <SP>15</SP>/1000 inch thick and fuel clusters 11. The annular space 19 is filled with a gas such as CO 2  or He under pressure. Baffles 20 and restrictors 21 in the fuel channels prevent neutron streaming. Steam under pressure flows through the tubes as coolant and D 2 O outside the tubes is the moderator. The reactor has an H 2 O reflector in Al tanks 12 which also contain steel shielding 13. The reactor is controlled by varying the moderator level in chambers 23. Specification 916,324 is referred to.
Patent GB-443595-A (GB)
Title: Improvements in rotary numbering boxes
IPC: B41K3/12
Filed: 1934-09-04
Abstract: 443,595. Number-printing apparatus. SUESS, P. W., 7, Raab Strasse, Plauen, Germany. Sept. 4, 1934, No. 25456. [Class 100 (ii)] [See also Group XIX] In a rotary number-printing box of the kind in which the figure wheels are each provided with a ratchet wheel co-operating with a spring-pressed retaining pawl, a cam spindle is provided for simultaneously removing the pawls from the ratchet wheels, and the spindle on which the figure wheels are mounted is held by a readily releasable catch which permits ready displacement of the spindle for removal of one or more of the figure wheels when desired. The retaining pawls 14, Fig. 4, for the ratchet wheels 13 are formed with heel portions 18 normally engaging a flat face on a spindle 19 mounted in the base of the numbering box. By turning the spindle by means of a wrench applied to its squared extremity 20, Fig. 5, all the pawls may be simultaneously released from the ratchet wheels. The spindle 11, on which the numbering-wheels 12 are freely mounted, is removably held by a spring-pressed pin 26, Fig. 5. The outer end of the pin and a lug 35 thereon normally engage in a key-hole slot 30 in a keeper plate 31. An enlargement 28 on the pin 26 is provided with a hole 34 to receive a tommy bar by which the pin may be first slidden axially to withdraw it from the spindle 11 and then turned so that the lug 35 engages the outer face of the plate 31 to retain the pin in its withdrawn position.
Patent GB-282185-A (GB)
Title: Improvements relating to automatic and semi-automatic telephone systems
IPC: H04Q3/00
Filed: 1926-10-13
Abstract: 282,185. Siemens Bros. & Co., Ltd., and Humphries, H. E. Oct. 13, 1926. Drawings to Specification. Automatic exchange systems.-In a system in which an idle one of a group of call-finders serving a group of subscribers' lines is selected by an assignor, the lines are divided into sub-groups, to each of which is allotted a common line relay which, when energized, starts the assigned finder and marks the calling sub-group. Whilst a finder is hunting, all other line relays are prevented from operating, and when the hunting operation is completed all line relays are shortcircuited in order to release any which may have remained energized on account of low insulation of the associated sub-group of lines. The invention is described with reference to a system identical with one described in Specification 281,407. in which the call-finders are of the 100- point two-co-ordinate type, and a common line relay is allotted to each of the ten lines in a level. The test for a calling line during the rotary movement of the finder is made over the speaking wipers, and an additional test wiper one step in advance of the other wipers controls a relay which opens the speaking wire circuits when busy lines are being passed over. If a call is abandoned whilst the assigned finder is hunting, the latter is set to last contacts on the last level, where the test relay energizes over the b-wiper and the finder is released. Specification 240,996 also is referred to.