baber/WOPTO huggingface dataset:
Patent GB-965400-A (GB)
Title: Improvements in or relating to apparatus for refining liquid suspensions of pulp andthe like
Inventor: DALZELL DAVID RUDOLPH
IPC: D21D1/30
Filed: 1963-07-22
Abstract: 965,400. Reducing pulp. E. D. JONES CORPORATION. July 22, 1963, No. 28892/63. Heading B2A. Refining apparatus for pulp suspensions which may contain solid articles such as staples and other junk comprises a rotary disc 5 having a set of blades 6, 7 on each side facing stationary sets of blades 8, 9, a housing 3 having a peripheral space 16 surrounding the disc and an axial inlet 14 on one side of the disc and an axial outlet on the other side so that the pulp flows outwardly to the space and then inwardly to the outlet, and a passageway 17 leading downwardly from the space to a junk chamber which is normally closed by a valve and receives the junk thrown into the peripheral space by centrifugal force. The disc 5 is mounted on the shaft 2 of a motor in a base 1 and is disposed between a head 10 carrying the stationary blades 9 and a cap 4 carrying the stationary blades 8. The head carries a packing gland 11 for the shaft 2 and is vertically movable by a hydraulic, pneumatic, worm or other type adjuster 12 to vary the spacing between the blades 7, 9, further upward movement raising the disc to vary the spacing between the blades 6, 8. The blades 6, 8 are wider and deeper than the blades 7, 9 so that pulp, which is fed to the inlet by gravity or positive pressure and may contain junk, moves radially outwards between the blades 6, 8 to the peripheral space 16 where it is subjected to a vigorous spinning action due to centrifugal force. The junk passes through the passageway 17 to the junk chamber which has two valves 18, 19 for enabling the junk to be removed, and the pulp passes between the blades 7, 9 to the outlet 15. In other embodiments, one or both sides of the disc is/are conical, the apices of the cones being in the same or opposite directions.
Patent GB-1126376-A (GB)
Title: Improvements in or relating to mechanisms for maintaining the top of a stack of sheet-form data carriers at a predetermined position
IPC: B65H1/08
Filed: 1966-06-28
Abstract: 1,126,376. Feeding and delivering sheets. SIEMENS A.G. 28 June, 1966 [29 June, 1965], No. 28916/66. Headings B6B and B6H. A table F supporting a pile St of data-carrying sheets is moved to maintain the top of the pile at a predetermined position as sheets are fed to or from the top of the pile, the mechanism comprising a helical spring k tending to move the table F upwardly and a bellows B to which suction is applied from a source S so as to tend to move the table downwardly. As applied to an arrangement wherein the table F is raised as sheets are fed from the top of the pile, a feeler T engages the top of the pile St and is part of a lever H the horizontal arm of which, when the pile is depleted, moves away from an opening Du in a pipe connected to the bellows B. The suction in the bellows is thus decreased and the table F is moved upwardly by the spring k. The top of the pile St now moves the lever H to close the opening Du, thus causing the suction in the bellows to increase to a point where it balances the upward thrust of the spring k. The pivot G of the lever H and the suction applied to the bellows are adjustable to obtain the required working conditions. To place a pile of sheets on the table F, a valve V2 in the connection between the opening Du and the bellows k is closed so that full suction is applied to the bellows causing the table to be moved downwardly to its lowest position. As shown the bellows B surrounds the spring k, but this is not essential. The table F may be inclined. Sheet separating and forwarding.-The sheets are separated one by one from the top of the pile by a suction device E and pass to a sorting apparatus L. Blower nozzles C prevent the sheets from sticking together.
Patent GB-683178-A (GB)
Title: A device for the dewatering of granular material
IPC: B04B3/06
Filed: 1950-11-27
Abstract: 683,178. Centrifugal-separators. KLOCKNER - HUMBOLDT - DEUTZ AKT.-GES. Nov. 27, 1950 [Nov. 26, 1949], No. 28928/50. Class 23 A strainer separator comprises a screen 8 rotatable about a vertical axis and resiliently supported by an intermediate member 6 which is resiliently supported from the drive shaft 1, and an impluse generator imparting axial oscillations to the member. The member has vanes 16 and constitutes an impeller for material fed to the separator. The member is oscillated by electromagnets 14, and is supported by rubber blocks 7 on the drive shaft. The drive shaft is rotated on radial bearings and a thrust bearing on a stub shaft 2 by belts 4 protected by a tube 18. The oscillations of the member are transferred to the screen by rubber blocks or springs 9.
Patent GB-254952-A (GB)
Title: Improvements in closure discs for milk bottles, jars or like vessels
IPC: B65D39/02
Filed: 1925-11-17
Abstract: 254,952. Bland, H. Nov. 17, 1925. No Patent granted (Sealing fee not paid). Disc closures; making stoppers; stoppers with valves. - A disc closure for milk bottles &c. comprises two discs connected by an integral portion 3 adapted to serve as a hinge, the upper disc 1 having stamped out of it a withdrawal tab 4 and the lower disc 2 an aperture 5 through which the contents of the bottle may be poured when the upper disc has been raised about its hinge 3. The discs are punched out of a strip of material folded on itself to produce the hinges 3.
Patent GB-478758-A (GB)
Title: Improvements in and relating to filtering apparatus for coal washery slurry
IPC: B01D33/06
Filed: 1936-10-24
Abstract: 478,758. Purifying liquids. GREAVES, H. J. Oct. 24, 1936, No. 28939. [Class 46] In separating liquid and solid products from coal washery slurry liquor, raw or flocculated liquor is delivered to settling compartments S<2> and at least one solid product of separation is mechanically transferred to a basin J where it is removed by an external drum filter D and the apparatus is arranged to have one common liquid level. The liquor may also be flocculated, frothed or mixed in the compartments S<2> and part of the solids may be removed directly therefrom to a point without. Overflows W for partially clarified liquid are provided so as to maintain the common liquid level. As shown, liquor is delivered through a pipe or trough P<1> to a chamber F which may be a flocculating or mixing chamber or may assist in distributing it to the settling chamber S<2>. The settled solids are transferred by a conveyer H to the basin J and drum filter D. The conveyer may be shielded by baffles H<1>. Two compartments S<2> may be arranged sideby-side or at the sides of the drum. In the latter case, solids are transferred to the drum by rotary wheel scrapers or by an air pump connected to a valved chamber between the compartments. Filters may be arranged in one compartment for removing clarified water ; such filters may be of woven-hair cloth as described in Specification 446,445. The outflow from such filters may be controlled by a valve operated from a float whereby the liquid level is maintained. In another form, the liquor is delivered directly to the filter drum basin and overflows into a settling tank from which solids are returned to the basin. In another form, the liquor is divided into two grades, one, a froth containing lighter particles being conveyed to a drum filter, and-the other, a solid slurry, being conveyed to a second drum filter or removed by an elevator. Specification 478,764 also is referred to.
Patent GB-832844-A (GB)
Title: Improvements in or relating to moving coil loudspeakers
Inventor: KNIGHT RITCHIE JOHN
IPC: H04R1/02
Filed: 1957-09-13
Abstract: 832,844. Loud-speakers. GOODMANS INDUSTRIES Ltd. Aug. 13, 1958 [Sept. 13, 1957], No. 28947/57. Class 40 (4). So that operation of a loud-speaker shall not be impeded by twisting of the chassis when screwed to an uneven baffle-board, the mounting tabs 4, 4a are made flexible. The tabs may be of stepped formation to accommodate a gasket.
Patent GB-1249696-A (GB)
Title: Sound reproducing apparatus
IPC: A63H3/33
Filed: 1969-06-09
Abstract: 1,249,696. Gramophone for toy doll. MATTEL Inc. 9 June, 1969 [9 Dec., 1968], No. 29052/69. Heading G5B. In a gramophone for a toy doll in which a turntable 47 having a multitrack record portion 29 is driven by a spring motor 76, 77 at a speed determined by governor 73 and in which the motor is wound by a draw string 53 which when pulled also lifts and returns tone arm 17 to the outer edge of the record, cam means 100 are provided to stop the outward movement of the tone arm and thus randomly select the next track to be played. The cam means has a number of tone arm engaging cam faces V-Z all spaced a different distance from the walls of cam bearing hole 102 which is larger than the pin 104 on which it is mounted to allow a circular portion 106 of the cam means to move by gravity into contact with and be driven by the turntable to randomly select the next track to be played.
Patent GB-205691-A (GB)
Title: Improvements in or relating to closures or stopper caps for use on bottles, jars, or the like
IPC: B65D55/08
Filed: 1922-10-25
Abstract: 205,691. Boucher, P. J. Oct. 25, 1922. Capsule and like closures. -A closure for bottles, jars, &c. comprises a flanged cap 3, a flexible ring 5 of rubber &c. fitted in a doublewalled recess 2 in the neck 1 of the container with a portion outstanding, and means, such as a jointed locking-ring 6, for compressing the ring 5 inwardly so that it expands transversely and seals the joints between the container wall and the locking-ring and cap. As shown, the locking-ring is of channel section with its overlapping ends 7, 8 pressed together, the end 8 being cut away at the sides to form an opening tongue 8<a>, but locking-rings as described in Specifications 142,384 and 169,337 may be employed. Instead of the cap 3, a compressible disc of cardboard &c., which may be held in position by a flanged ring of known construction, or parchment or paper may be held by the flanged ring and may extend down past the recess 2 and be embraced by the ring 5.
Patent GB-839734-A (GB)
Title: Carbazinic acid derivative
IPC: C07C271/06
Filed: 1958-09-11
Abstract: The invention comprises beta-hydroxy-ethyl-N - beta - hydroxyethyl - carbazinate of the formula HOCH2CH2NHNHCOOCH2CH2OH and its preparation by reacting beta-hydroxyethyl-hydrazine with ethylene carbonate.ALSO:A composition for promoting the flowering of pineapple plants comprises a wettable powder based on clays or other powders (e.g. pyrophillite, diatomaceous earth or attapulgite) and wetting and suspending agents (e.g. alkylbenzene sulphonates, polyoxyalkylated tall oil or polyoxyethylated alkylphenols) to which are added as the active ingredients beta-hydroxyethyl-N-beta-hydroxyethyl-carbazinate of the formula HO CH2CH2NHNHCOOCH2CH2OH.
Patent GB-592118-A (GB)
Title: Improvements in gun-turrets for aircraft
IPC: B64D7/02
Filed: 1938-10-07
Abstract: 592,118. Aircraft gun turrets. BRISTOL AEROPLANE, CO., Ltd:, and FRISE, L. G. Oct. 7, 1938, Nos. 29179/38 and 7030/39. [CLass 92 (i)] An aircraft gun turret comprising a rotary guncarrying ring 13 and an attached structure 20, 21 connected to a bearingmember 23 is adapted for use (1) as in Fig. 1, to support a shallow saucer-like compartment 27 protruding below the aircraft and accommodating the gunner in a prone position, or (2) as in Fig. 3, with the turret protruding above the aircraft to accommodate the gunner in a sitting position. Chordal beams 18, 19 in the turret provide a central space for the gunner and side spaces for two guns 54, 55 on each side, the gun cradles 42 being trunnioned at 43 and elevatable together by linkage 45, 46, 50 connected to hydraulic jacks 53, one for each pair of guns. The turret is trained by a hydraulic motor 34 on the ring 13 driving a pinion engaging a fixed circular rack 14. The gunner controls the training valves by handles 33 which are twisted to control the elevation valves and the handles carry firing triggers for the guns. In the form shown in Fig. 1, the gunner using a foot-rest 31 lies prone on a mattress 30 carried by a frame 32 foldable to form a seat. The tubular bearing 23 accommodates hydraulic mains with rotary fluid joints 25, 126 from which conduits lead to the turret through the members 20, 21 or 22. In the form shown in Fig. 3, a seat 60 for the gunner is provided which is adjustable in guides 21, 22 by a hydraulic jack 65, if necessary in unison with gun elevation. The turret 66 in this form has enlargements 67, 68 to accommodate the gunner's head and to provide for gun depression. In either form, the turrets may be made retractable into the aircraft structure.
Patent GB-744435-A (GB)
Title: Improvements in or relating to corrugated metal pipes
IPC: F16L53/38
Filed: 1953-10-22
Abstract: 744,435. Electrically heated pipes. PIRELLIGENERAL CABLE WORKS, Ltd., and ARMAN, A. N. Aug. 12, 1954 [Oct. 22, 1953], No. 29213/53. Class 39(3). [Also in Group XXVIII] Corrugated pipes made of metal such as aluminium, copper, zinc or their alloys or of steel or stainless steel, are heated electrically by resistance wires 3 accommodated in the external troughs formed by the corrugations and are insulated from the pipes. In Fig. 1, twin wires 3 enclosed in an insulator 4 are laid in a helical trough 2 formed in a pipe 1, which is then enclosed in lagging 5 and a waterproof covering 6. The wires are joined at one end, the other ends being connected to a power supply, or are connected in parallel to the supply terminals. In Fig. 2 (not shown), a bare wire rests on an insulating tape laid in the trough and is covered by a second tape ; the pipe acts as return conductor. In Fig. 3 an insulated feeder strip 9 is laid in the trough 2 outside a wire 3, and in Fig. 4 (not shown) the wires 3, 9 are bare and laid between insulating tapes. The corrugations may comprise separate troughs each in a plane at right angles to the pipe axis, separate wires being provided or a single wire passing from groove to groove. In Fig. 5 (not shown) the corrugations are formed by a two-start helix, a heater wire being laid in one and a circular feeder, to fit the trough, in the other, and in Fig. 6 (not shown), bare wires laid between insulating strips are used ; both a heater and a feeder wire may be located in either or both troughs. Where a feeder wire is used, the heater wire may be divided into lengths connected in series,parallel or series-parallel between the feeder and a return conductor consisting of a second feeder or the pipe 1. When lengths of pipe are joined together, the connections for heater and feeder wires and the pipe are made in a box formed as a separate unit or as part of the pipe coupling, and where parallel pipes are used one is used as the outgoing feeder and the other as return.
Patent GB-333431-A (GB)
Title: Guide for straightening rolls
IPC: B21D3/04
Filed: 1929-09-26
Abstract: 333,431. Wise, G. A. Sept.. 26, 1929. Skrew-rolling.-A guide 1 shown in plan, Fig. 1, and elevation, Fig. 2, for supporting work between pairs of work-straightening cross rolls 20, Fig. 12, comprises a top or guiding surface 2 stiffened by an inclined web the parts 3, 4 of which each have at their lower ends vertical faces 8, 9 for mounting the guide. Faces 8, 9 are adjustably locked in forks 11 of a swivel frame 10, Fig. 6, two of such frames &c. are shown mounted to swivel by their slots 24 on an underslung carriage 15 so that the guide surfaces 2 lie between the pairs of straightening rolls 20. The carriage 15 is mounted with vertical and horizontal adjustment, the vertical adjustment being provided by a hand wheel 30 and the horizontal adjustment being made by pinching screws 33 to clamp the ends 32 of the carriage against shims in the U-shaped seat 29. The seat 29 slides vertically in the yoke 27 secured to the frame of the machine.
Patent GB-702709-A (GB)
Title: Improvements in or relating to flywheel and clutch assembly
IPC: F16D25/0635
Filed: 1951-12-14
Abstract: 702,709. Friction clutches. BORG-WARNER CORPORATION. Dec. 14, 1951 [Dec. 15, 1950], No.29332/51. Class 80 (2) In a friction-clutch of the kind wherein the driven disc 25 is clamped against a back-plate 24 by axial movement of a presser-plate 23 away from a flywheel-plate 11, which forms part of a combined driving casing 10 for the clutch and a torque-converter, by fluid-pressure applied to its left face in a pressure-space 56 formed between the flywheel and presser-plates, the flywheel-plate 11 is a sheet-steel stamping in which is formed an annular channel 43, the inner cylindrical wall 40 of which guides an annular piston 53 extending axially from the presserplate 23. Radial lugs 52 on the presser-plate 23 are linked by tangential flexible metal strips 50 to bolts 48 which also rigidly attach the backplate 24 to brackets 45 welded to the flywheel 11. The channel 43 limits leftward disengaging movement of the presser-plate 23 under the influence of fluid-pressure, lower than the engaging pressure, acting in the torque-converter continuously on the right face of the presserplate, together with, if desired, assistance from the tangential spring strips 50. Engaging pressure is supplied to the space 56 through a central shaft-duct 63. The driven disc 25, which has a spring-coupling 28, is splined on a shaft 27, within, but not connected to the driven shaft 20 of the torque-converter, which latter is of the overrun-reactor type. The assembly bolts at 15 to an engine crankshaft and is used in an automatic or semi-automatic change-speed gear on a vehicle.
Patent GB-504624-A (GB)
Title: Improvements in ore and like concentrators
IPC: B03B5/26
Filed: 1937-10-27
Abstract: 504,624. Concentrating ores. SIERRA LEONE DEVELOPMENT CO., Ltd., and OPIE, W. L. Oct. 27, 1937, No. 29395. [Class 82 (ii)] An ore or like concentrator, of the kind in which gravity separation of the concentrate is performed with the aid of a stream of water which carries away the gangue, comprises two or more sluice boxes to which the ore or the like is admitted in succession, the discharge of one box and the charging of the next being initiated by the weight of concentrate in the box to be discharged. The apparatus shown comprises two sluice boxes 1, 2 movable about pivots 3 from a slightly-inclined charging position to a more inclined discharge position, and connected by a wire rope 5 passing over pulleys so that the lowering of one raises the other. In the position shown, ore and water fed from a pipe 7 are delivered by a rocking feed-box 8 to the sluice box 1, the gangue and water discharging into a launder 9. Simultaneously, flushing water is supplied through a valve 14 to the box 2, carrying the concentrate in it into a launder 17. When a sufficient weight of concentrate has collected in the box 1 to overcome frictional resistance to movement the box falls to the lower position, raising the box 2. At the same time the feed-box 8 is tipped by the upper end of the box so as to deliver to the box 2, and connecting-rods 16 pivoted to the ends of the boxes close the valve 14 and open a similar valve through which flushing water is supplied to the box 1.
Patent GB-1370218-A (GB)
Title: Apparatus for testing the ability of a storage battery to crank an internal combustion engine at low temperature
IPC: H01M50/569
Filed: 1972-06-23
Abstract: 1370218 Battery testing ESB Inc 23 June 1972 [10 Aug 1971] 29591/72 Heading G1U The conditions experienced by a battery in cranking an engine in winter are simulated in the summer by shunting the battery with an appropriate resistive load, e.g. for cars one of the order of 0.025 ohms drawing a current of about 260 amps. By this method an operator can forecast, by observing how well the resistiveloaded battery cranks the engine in summer, whether the battery condition is good enough for the arduous conditions of winter. As described the test arrangement comprises a variable resistor 62, Fig.2, a low voltage detector 64, which when the arrangement is connected to the battery by clips 30, 46, detects when the starter motor is energized, by detecting the resulting drop in battery voltage, and energizes a relay 60 so that to avoid unnecessary strain on the battery the additional load is only applied when the starter motor is energized. The circuit may also incorporate a time delay unit 66, e.g. a thermal relay, to prevent the test lasting too long and a voltmeter 68.
Patent GB-152954-A (GB)
Title: Improvements in or relating to the scavenging of two stroke cycle internal combustion engines
IPC: F01L5/04
Filed: 1920-10-20
Abstract: 152,954. Soc. Anon. des Etablissements Ballot. Oct. 25, 1919, [Convention date]. Valves.-In a two-stroke-cycle engine in which scavenging gases are controlled by automatic or controlled valves, these valves are arranged to permit of inspection and replacement while the engine is running. As shown, a check valve 12 is seated within a plug-cock 3, and may be examined and replaced after closing the cock 3 and removing a plug 14. Scavenging gases are admitted to the engine cylinders through other ports, whilst the cock 3 is closed. The valve 12 may be a controlled slide valve. Regulating.-The Specification as open to public inspection under Sect. 91 (3) (a) states that the effective area of each scavenging port 2, or of each group of ports, is controlled by hand or by a governor by means of the valve 3, which may be used without the valve 12. This subject-matter does not appear in the Specification as accepted.
Patent GB-797809-A (GB)
Title: Improvements in or relating to demodulating circuit arrangements
Inventor: DAVIES ERIC
IPC: H03K4/02
Filed: 1955-10-18
Abstract: 797,809. Television. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. June 14, 1956 [Oct. 18, 1955], No. 29690/55. Class 40 (3). [Also in Group XL (c)] In an amplitude demodulating circuit the modulated signal is periodically clamped and is subtractively combined with the original modulated signal to produce a resultant stepped signal from which by filtering the low-frequency modulation component is derived. The low frequency signal thus derived may be fed back to a point preceding that where clamping is effected and by this means low frequency distortion in the original signal is substantially cancelled out. For the reduction of low frequency interference or distortion in a television signal, it is tapped off from the output lead 1a of the video amplifier stage 1 and fed via cathode follower stage 2 to a further cathode follower stage 3, the control grid of tube 3 being periodically clamped once per linescanning period during the blanking interval by a clamp circuit comprising double diode tube 4. Clamp driving pulses for each half of tube 4 are taken from the anode and cathode circuits of phase splitter tube 6 to the grid of which are fed clamping pulses at line frequency from terminal 7 the clamped signal from tube 3 is fed to tube 8a and the unclamped signal to the grid of tube 8b. Cathode coupled tubes 8a and 8b constitute a subtracting detector circuit so that when tap 9 is adjusted so that the signal amplitude at the anodes of tubes 8a and 8b are equal television signal components are cancelled out leaving only interference signals in the form of steps at line frequency derived from the anode of tube 8a. The stepped signal is smoothed in network 10 and the resulting signal fed back to the input of amplifier 1 to cancel the interference component in the television signal. Specification 732,677 is referred to.