baber/WOPTO huggingface dataset:
Patent GB-1184919-A (GB)
Title: A Method of Lifting and Conveying Objects of MagnetizableMaterial, Preferably Iron Sheets and a Plant for Carrying the Method into Effect
IPC: H01F7/20
Filed: 1967-05-19
Abstract: 1,184,919. Feeding sheets. H. NIELSON & SON MASKINFABRIK A.S. 19 May, 1967 [4 Aug., 1966], No. 23483/67. Heading B8R. [Also in Division H2] In a method of lifting and conveying magnetizable iron sheets by at least one lifting magnet and in which the supply to the winding of the magnet(s) is cut off for a brief period to separate the uppermost sheet from a number of other underlying sheets adhering to it, the current being subsequently cut in for retention of the uppermost sheet, a voltage impulse induced in the winding of the lifting magnet(s) caused by the fall of one or more sheets is fed to an electronic unit which, after a determined first time interval again reinstates the magnet current. After another determined time interval the current may be again interrupted then reinstated a determined number of times to ensure that all the sheets, except the uppermost one, have been dropped prior to lifting magnet moving to the destination of the uppermost sheet. One or more lifting magnets 1 are energized from a three-phase supply R, S, T, through a rectifying unit including thyristors 5, 6, 7, control electrodes 8 of which are connected to a trigger circuit 10 which at determined intervals supplies firing pulses to the thyristors. After current through the magnets is interrupted and when one or more sheets begin to fall, the voltage induced in the magnet windings appears through a diode 16 across a transformer winding 15 and is fed through a secondary winding 53 to a control unit 11 which causes the thyristor firing pulses to be reinstated, then interrupted repeatedly for a fixed period within which all the sheets except the uppermost are shaken off. In operation the magnet is lowered and on contacting the uppermost sheet, a contact 18a disposed on the yoke of the magnet causes the hoisting mechanism to reverse and raise the magnet, and a contact 18b energizes a time measuring device (TH) which cuts out the hoisting after a determined time which determines the height to which the sheet stack is to be lifted before the lowermost sheets are to be shaken off. The shaking off circuit is then energized subsequent to which the uppermost sheet is transported to its destination. Where a number of magnets are employed a time delay is introduced before reinstatement of the supply as some magnets may release before others and give rise to voltage impulses which will cause the supply to be resumed too early. Some of the circuit functions are performed by logic elements.
Patent GB-365988-A (GB)
Title: An improved process and apparatus for the production of frictional coverings
IPC: B29C33/00
Filed: 1931-08-21
Abstract: 365,988. Moulding brake &c. linings. KATTWINKEL, H., 28, Meissnerstrasse, Coswig, Dresden, Germany. Aug. 21, 1931, No. 23540. [Class 87 (ii).] Friction c o v e r - ings, e.g. for brakes, are made by impregnating a fibrous material in strip form, the strip having a width several times as great as that of the finished product. The strip, after impregnation, is hardened by heat and pressure and simultaneously shaped and subdivided as by dies 1, 3 fitted with knives 2, 4 in order to produce pieces of the required width. The knives may be detachable and the subdivision of the strip may be effected by bladed rollers.
Patent GB-386349-A (GB)
Title: Improvements in or relating to hydraulic change-speed gear
IPC: F16H61/40
Filed: 1931-08-21
Abstract: 386,349. Rotary engines. SEAGER, H., 530, Avenida Diagonal Roque Saenz Pena, Buenos Aires. Aug. 21, 1931, No. 23541. Convention date, June 26. [Class 110 (ii).] A hydraulic variable-speed gear comprises a revolving- cylinder pump 3, Fig. 1, of variable and reversible output, and a vaned motor 24. The vanes of the motor have a pair of rollers 27 at each end eccentric to each other, so that one roller of each pair bears on the upper surface of a cam groove 29 and the other on the lower surface.
Patent GB-1188270-A (GB)
Title: An Internal Combustion Engine having a Device for Interrupting the Idling Fuel Passageway of a Carburettor
IPC: F02M3/05
Filed: 1968-05-17
Abstract: 1,188,270. Spray carburetters. NISSAN JIDOSHA K.K. May 17, 1968 [June 26, 1967 (2)], No.23549/68. Heading F1B. A valve 26, Fig.2, is operated by high intake manifold action driving overrunning only low suction, if the engine runs on after switching off, to cut off the idling fuel-flow. The valve 26 is operated by spring-loaded diaphragm 8, Fig. 1, connected by link 9 to a member 16 pivoted at 18 and having cam surfaces 16a, 16c co-operating with a lever 17 pivoted at 19 and engageable with the valve 26. During normal idling conditions diaphragm 8 is held by the idling suction in an inoperative position in which lever 17 is disengaged from valve 26. During overrunning the high suction moves diaphragm 8 to the left whereby cam 16a rotates lever 17 clockwise to operate valve 26 to close port 24a and cut off the idling fuel. If the engine runs on after switching off, the low intake manifold suction permits spring 7 to move diaphragm 8 to the right whereby cam 16c rotates lever 17 clockwise to cut off the idling fuel. If the throttle is opened or the clutch depressed while the valve 26 is closed, levers 31 or 32 are rotated clockwise by spring 35 or wire 37 respectively to rotate lever 17 anticlockwise to allow valve 26 to open and reclose the idling supply. The port 24b may be formed in a separate valve seat member 24a or directly in the carburetter body.
Patent GB-1425925-A (GB)
Title: Emplifiers
IPC: H03F1/22
Filed: 1972-05-19
Abstract: 1425925 Transistor amplifying circuits EMI Ltd 11 May 1973 [19 May 1972] 23553/72 Heading H3T An amplifier which is more particularly intended for use as a linear video amplifier comprises two pairs of transistors Q1, Q2 and Q3, Q4 respectively; each pair comprises two complementary transistors in cascade connection, the input transistors Q1, Q3 being also complementary to each other and having their inputs connected in parallel, while the output transistors Q2, Q4 also comprise a complementary pair with their outputs connected in parallel. The amplifier is driven from a preliminary stage Q5, the base biasing circuit of transistors Q1, Q3 including a variable resistor VR1 being used to adjust the relative currents in the two transistors. Variable resistor VR2 differentialy adjusts the currents in transistors Q2, Q4 while variable capacitor C1 is used to adjust the phase characteristic. The amplifier feeds into an output stage comprising complementary transistors Q7, Q6 in emitter follower connection; feedback round the amplifier is provided by lead 11.
Patent GB-834185-A (GB)
Title: Improvements in or relating to manure conveyors
IPC: A01K1/01
Filed: 1958-07-22
Abstract: 834,185. Ratchet conveyers. ZELTER, H., [trading as MASCHINENFABRIK LYTHALL KOMM-GES.]. July 22, 1958 [July 22, 1957], No. 23590/58. Class 78 (1). Means for removing manure from a stable 1 comprises a fixed intermediate inclined conveyer 3 and a delivery conveyer 8 which can be adjusted about a vertical or horizontal axis or both. Each conveyer comprises a channel in which is reciprocated a rod 5 carrying pivoted scrapers 6 which, on the working stroke, are held by stops substantially perpendicular to the rod and on the return stroke lie against it. The channel of the conveyer 8 is carried by a support 9 which is rotatable about a horizontal pivot 10 on a jib 11. The jib is mounted on a support 12 so as to be rotatable about a vertical axis. Means is provided for locking the conveyer in adjusted position. Rods 17 fixed to the rod 5 project through a slot either in the side-wall or bottom of the channel and are connected to control ropes 19, 20. These ropes pass over horizontal pulleys 21, 22 and 22<SP>1</SP> and over a vertical pulley 23 to two pairs of coaxial pulleys 24, 25 whence they pass over guide pulleys 27, 28 or 29 to a rod 30 fixed to the driving rod 31 of the conveyer 8. The pulleys 24, 25 are disposed near the point of intersection of the pivotal axes of the channel of the conveyer 8. The channel within the stable contains similar conveying mechanism. This channel is connected by an arcuate channel 2 to the conveyer 3.
Patent GB-239720-A (GB)
Title: Improvements in and relating to the extraction of metals from their ores
IPC: C22B1/08
Filed: 1924-10-06
Abstract: Ores of lead, zinc, copper, silver &c. are treated with hydrochloric acid gas or an iron chloride in presence of steam at about 150-200 DEG  C. so as to obtain chlorides of the metals which are leached out with water, or, in the case of lead and silver with a solution of sodium, calcium or magnesium chloride.  When using hydrochloric acid, this may be obtained by calcining an iron chloride at 150-200 DEG  C. The chlorides obtained are treated in any suitable manner to recover the metals, the chlorine being combined with scrap iron so as to obtain iron chloride for re-use. If the metal chlorides are treated electrolytically, iron anodes may be used in a diaphragm cell, or, alternatively, insoluble anodes in an open cell in which case the evolved chlorine is led over metallic iron to produce the chloride. The process of chloridizing the ores in the presence of iron chloride renders any arsenic present insoluble and non-volatile by combining it with the iron, probably as ferric arsenate.
Patent GB-213505-A (GB)
Title: Improvements in lateral mud splash preventers for vehicles
IPC: B60B7/00
Filed: 1923-09-21
Abstract: 213,505. Shaw, J. Sept. 21, 1923. Lateral-splash guards for vehicle wheels comprise a flat ring 7 of sheet-metal, which is fitted with an outer ring 10 of rubber, leather, &c., and is rotatably mounted relativelv to the wheel by the engagement of its inner beaded edge with rollers 5 mounted in U-shaped guides forming parts of brackets 2, which are secured to the alternate spokes 1 of the wheel by screws 3, or by clips &c.
Patent GB-1153681-A (GB)
Title: Improvements in or relating to Paper-Making Machines
Inventor: HINDLEY JOHN PETER
IPC: D21F5/00
Filed: 1965-06-03
Abstract: 1,153,681. Drying webs. J. P. HINDLEY (Domtar Ltd.). 3 June, 1966 [3 June, 1965], No. 23663/65. Heading F4G. In apparatus for drying a paper web 10, the web passes from between nip rolls 11, 12 on to the surface of a continuous belt 14 which travels in a closed path about a shaped chamber 17 from which a heated air stream 16 emerges both to support and heat the belt and web and thereby to heat and dry the web adhering thereto before the web is separated from the belt at 19. The air may be supplied to the chamber through a single inlet 18 or through a plurality of successive zones of different temperatures and the belt may be formed of polished metal to prevent shrinking of the web or shrinkage may be permitted on a belt of plastic or other deformable material. The belt may make a single loop, as shown, of either circular or elliptical form or it may undergo a number of reversing loops where the belt and web are alternately on the bearing side and subjected to a hot air stream, Figs. 2 and 3, not shown.
Patent GB-969688-A (GB)
Title: Improvements in or relating to devices for the wet spinning of artificial textile fibres
IPC: D01D4/02
Filed: 1962-06-20
Abstract: 969,688. Spinnerets. SNIA VISCOSA SOC. NAZIONALE INDUSTRIA APPLICAZIONI VISCOSA. June 20, 1962 [July 12, 1961], No. 23675/62. Heading B5B. A device for wet-spinning synthetic fibres comprises an annular spinneret; a spinneret feed duct having in the proximity of the spinneret a substantially annular shape, and connected with a source of spinning solution; a central duct circumscribed by the annular bundle of extruded filaments and through which coagulating liquid is supplied into the inside of the bundle of filaments; and means for securing both the filament and the two ducts in position. The spinneret face is preferably delimited by an annular flat surface defined within coaxial circles, and the spinneret feed duct is preferably concentric with the spinneret. In one embodiment (Figs. 1-4) an annular multi-hole spinneret 10 has face 12 defined between circles 13 and 14, and is of U-shaped crosssection. Spinning solution e.g. viscose, is fed through annular duct 16 connected via inlet 17 to duct 18 defined by sleeve 19 screwed into annular body 15. Coagulating liquid is fed to the inner filaments in the annular bundle by duct 21 defined by sleeve 20, the whole device being immersed in the coagulating liquid. For fastening the spinneret in place, a flange 22 formed on sleeve 20, engages with packing 23 fitted on the front side of flange 11 of the spinneret. The other end of the sleeve is held by threaded ring 24. A packing 27, a filter 28 and a packing 29 are interposed between flange 11 and a stop 26 on the annular body 15. The outer flange 11<SP>1</SP> of spinneret 10 is secured against shoulder stop 30 by flange 34 formed on ring 35 screwed on to annular body 15. Packings 31, 32 and 33 are interposed between spinneret 10, filter 28, and the clamping members. In operation, the central duct allows the inner filaments of the annular extruded bundle to be contacted with coagulating liquid as well as the outer filaments of the bundle.
Patent GB-189266-A (GB)
Title: Improvements in or relating to directional wireless systems and apparatus
IPC: G01S1/02
Filed: 1921-09-07
Abstract: 189,266. Grenfell, G. P., Robinson, J., Crowther, H. L., Gill, T. H., and Murray, J. Erskine-. Sept. 7, 1921. Thermionic oscillation generators and modulating systems; directive signalling; aerials. - A generating-valve is connected to one or more directive loop aerials, the turns of which are maintained in fixed relationship to each other but arranged in such a way that one portion of the loop aerial forms the grid inductance and another portion the plate inductance, these two portions being magnetically coupled together so as to maintain oscillation without the use of a separate reaction coil; or the interacting loop-inductances may be coupled through a condenser. The various elements of the oscillation-generating circuit are arranged symmetrically within the loop aerial, which is rotatably mounted on a central mast, in order to prevent any disturbance of the plane of propagation. Fig. 1 is a diagrammatic representation of the generating circuit and the loop aerial. The loop aerial, which is actually coiled around a rectangular frame 20, Fig. 3, is represented by the inductance 1, Fig. 1, which, together with a condenser 2, indicates the radiating-circuit. One end of the inductance is connected to the negative terminal 3 of the high-tension supply, whilst the other end is joined to the grid of the powervalve 6 through a grid-leak 7, 8. The filament is connected to an intermediate point 11 bv a lead which contains a signalling-key 12 and a tonic. train interrupter 45. One half of the inductance 1 therefore forms a reaction coil with a fixed degree of coupling for maintaining oscillations. Fig. 3 shows the actual arrangement of the aerial. The valve 6 and the condenser 2 are arranged on opposite sides of the central mast 21 within a roofed structure 22 which, together with the aerial-frame 20, is rotated at a constant speed around the mast by means of a motor 34 and gearing 35 - - 39. Filament current and the plate high-tension supply are supplied from the ground through suitable slip-rings mounted on the mast. The structure is supported by guys 43, 40, rope portions 41 being inserted in the latter to avoid any capacity effects with the rotating aerial. Alternatively, the whole aerial may be arranged within a wooden tower to shield it from the winds, and so avoid irregularities in the speed of rotation. Two coils wound in the same plane, or arranged mutually at right-angles or at a lesser angle, may be employed instead of the single coil; or open-ended aerials may be added to the loops. In operation, the system is caused to emit distinctive signals at specified points during each rotation by means of an automatic switch operating the key 12 through slip-rings on the mast. Or directive signals may be transmitted in pairs at a definite azimuthal angle apart and at short intervals, the planes of propagation being gradually rotated step by step. To eliminate the 90‹ ambiguity, separate loopcoils set at an angle of 30‹ may be alternately connected in the transmitting-circuit.
Patent GB-223234-A (GB)
IPC: H02K17/28
Filed: 1924-10-08
Abstract: 223,234. Deutsche Werke Akt.-Ges., (Assignees of Altwickler, C.). Oct. 8, 1923, [Convention date]. Alternating-current commutator machines.-In a compensated induction motor having a commutator winding 10 and a slip-ring winding 11, 12, 13 on the secondary member, the brushes 7, 8, 9 are set so that a predetermined proportion of the working secondary current flows through the commutator winding whereby the sum of the copper losses in this winding and in the secondary winding is a minimum. The brushes are connected to a three-phase winding 4, 5, 6 which is inductively coupled with the primary winding 1, 2, 3. A method of determining the correct brush setting is described in the Specification, and a numerical example is given for a particular motor. Specifications 10611/08 and 30208/09 are referred to. According to the Specification as open to inspection under Sect. 91 (3) (a), the required division of the secondary current between the two windings may be obtained by adjustment of the magnitude and phase of the tension supplied to the commutator. This subject-matter does not appear in the Specification as accepted.
Patent GB-231392-A (GB)
Title: Improvements in or relating to incandescent burners for paraffin or petroleum lamps
IPC: F23D3/00
Filed: 1924-10-08
Abstract: 231,392. Brown, W. B. Oct. 8, 1924. Wick burners, annular, blue-flame. - To enable a closely woven mantle to be used with an incandescent burner for wick lamps, the burner cone a is provided with a flange c forming a flat top in which are pierced near its outer rim a series of small holes d to supply an upward current of air to the interior of the mantle. The holes may circular and spaced around the cone at # in. apart. As shown they are located at a distance from the inner periphery c' of the flange equal to two-thirds or more of the width of the flange, which is sufficient to deflect the flame away from the holes.
Patent GB-655907-A (GB)
Title: Improved reversing mechanism for propellers with rotatable blades
IPC: B63H3/08
Filed: 1948-09-10
Abstract: 655,907. Stuffing boxes. AALBORG VAERFT AKTIESELSKABET, and BLACHE, H. H. Sept. 10, 1948, No. 23880. Addition to 650,100. [Class 122(v)] [Also in Group XXXIII] A space between rotary surfaces 9 and 19 and a non-rotary ring 17 is maintained fluid-tight by rings 18. These are pressed outwardly by springs 22, carried by the ring 17 and pressing against rings 20 which: are held against relative rotation by pins 21. Leather sleeves 23 seal the rings 20 against the ring 17.
Patent GB-237463-A (GB)
Title: Improvements in and relating to cylinder locks and latches
IPC: E05B13/10
Filed: 1924-10-09
Abstract: 237,463. Vaughan, Ltd., H. & T., and Ramsell, H. G. Oct. 9, 1924. Latches, preventing operation, of; locks, revolving-barrel. - The operating handle g of a lock or latch is locked against rotation by a revolving- barrel lock f mounted in a recess in the handle. A bolt t in the handle is shot into a recess v in the handle bearing a by an eccentric pin m on an extension of the barrel j. Two sets of tumbler pins at right angles to one another are mounted in the cylinder to co-operate with one set in the barrel so that only a partial turn of the barrel is necessary to withdraw the key again, stops being provided to limit the rotation to 90‹. In a modification, Fig. 5, the locking bolt 2 is moved longitudinally by a cam 3 at the end of the revolving barrel to engage the bearing. Projections may be provided on the bearing a to engage the door and prevent turning.
Patent GB-1199954-A (GB)
Title: Improvements in Furnace Linings
Inventor: BISHOP PETER HAROLD HOWARD
IPC: F27D11/02
Filed: 1967-05-24
Abstract: 1,199,954. Electric furnace lining. NATIONAL RESEARCH DEVELOPMENT CORP. 30 May, 1968 [24 May, 1967], No. 24078/67. Heading F4B. The inner lining of the casing 1 of an electric furnace is formed from tightly packed spirally coiled rolls 2 of carbonized heat insulating fibres, such as carbonized cotton wool, which define an inner charge receiving space and also serve to support a charge. The rolls may be precarbonized, or partly or completely carbonized in situ, and are secured to the casing, which is of steel or insulating hard boards, by adhesive or by hooks. Carbon blocks 4 forming a hearth and possibly side walls may be provided to rest against the coiled rolls. Inert gases may be supplied through manifolds 9a,  slits 9c and ports 9b in the casing walls to percolate through the pores of the carbonized fibres into the furnace interior. An exhaust pipe 12 is also provided in association with the  tubular resistance heating elements 6 which are supported in insulating bushings 11 in a side wall of the furnace. The door 3 is provided with a lining of coiled rolls in the same way as the other furnace walls.
Patent GB-895542-A (GB)
Title: Improvements in table-type and like refrigerators
IPC: F25D23/06
Filed: 1960-07-11
Abstract: 895,542. Refrigerators. FINK, E., FINK, E., FINK, R., FINK, P., and FINK, A., [trading as ElSFINK C. FINK O.H.G.] July 11, 1960 [July 11, 1959], No. 24164/60. Class 29. A table-type refrigerator comprises a condenser in the form of a tube coil f sunk into external recesses g in the cabinet walls. The tube coil f is led in stepped form from one side wall c by way of the rear wall d to the other side wall e and back.
Patent GB-1089306-A (GB)
Title: Improvements in or relating to aquarium filters
IPC: B01D35/027
Filed: 1965-06-08
Abstract: 1,089,306. Aquarium filter. AQUARIUMS Inc. June 8, 1965 [June 26, 1964], No. 24232/ 65. Heading B1D. Water from an aquarium is passed via siphon tube 78 to filtration chamber 60 of removable filter assembly 12, is filtered through layers of glass fibre and charcoal (not shown), and passes through perforated platform 56 to clean water chamber 62 and cylinder 38, whence it is forced up cone 68 and pipe 74 back into the aquarium by compressed air bubbles pumped through pipe 44 and air store 50.