baber/WOPTO huggingface dataset:
Patent GB-1410168-A (GB)
Title: Root crop harvesters
IPC: A01D33/00
Filed: 1971-05-26
Abstract: 1410168 A depth control system for root crop harvesters RANSOMES SIMS & JEFFERIES Ltd 25 Aug 1972 [26 May 1971] 17251/71 Heading A1F An electrically operated depth control system for a root crop harvester comprises a sensing arm pivotally mounted on the harvester so as to follow the ground's contours in advance of a digging blade, micro switches which are closed upon the arm deflecting beyond a certain limit and means for causing the digging blade and the mounting means to be raised lowered in response to the closing of one of the switches so as to maintain a constant working depth. In a first embodiment (Figs. 1 and 2) a pair of micro-switches 37, 39 for 'Up and Down' movement respectively are included in the electrical circuit of a solenoid operated valve (not shown) which controls fluid flow to a ram 21 by which is raised/ lowered a sub frame 13 carrying the digging blade 1 and a mounting 27 for the sensing arm 23. The switches 37, 39 are closed by the arm 23 which is biased by a spring loaded pin 41 into contact with the ground. The mounting 27 is vertically adjustable on a support 29 to permit variation in its setting and hence alteration of the blade's working depth. The electrical circuit also includes a three way master switch having positions "off", "Automatic" wherein the depth control system is operative and "Lift" for raising the blade 1. In a second construction the harvester has a blade of sufficient width to dig up two rows simultaneously and a pair of sensing arms. One arm operates a pair of micro switches and the other only a "down" switch which, when closed, overrides any "Up" signal from the other -arm so that the blade is kept at a constant depth below the surface of the lowest row. An electric motor may be used instead of the hydraulic ram.
Patent GB-436752-A (GB)
Title: Improvements in levels and clinometers
IPC: C25D11/34
Filed: 1935-06-12
Abstract: 436,752. Levels. MONGER, A. L., Cliffe End, Ridge Mount, Guildford. June 12, 1935, No. 17359/34. [Class 97 (ii)] An elongated metal base 18, preferably of channel shape in cross section, has an upwardly projecting housing 19 intermediate its ends and a calibrated pendulous drum 20 is pivoted on bearings 22 in the housing and co-operates with a stationary but adjustable pointer 26. The drum is read through a curved window 25 at the top of the housing 19. A magnifying lens 28 on an arm 29 pivoted at 30 may be moved in front of the window 25 from the inoperative position shown in broken lines. The drum 20 is normally locked by the pad 34 pressed against it by the leaf spring 35 but may be released by operation of the lever 37 and cam 36. The base 18 contacts with the surface to be tested only at the ends 33, which may have V-shaped grooves. The handles 32 may be removed and replaced by optical sights. In a modification the window 25 is replaced by an upstanding neck carrying the magnifying lens and having windows in its side walls to illuminate the drum 20.
Patent GB-379029-A (GB)
Title: Improvements in and relating to spring squabs for seats and the like
IPC: A47C23/055
Filed: 1931-06-15
Abstract: 379,029. Spring upholstery. PETERS & CO., Ltd., G. D. and FOSTER, W. L., Windsor Works, Slough, Buckinghamshire, June 15, 1931, No. 17381. [Class 52 (iv).] Rows 1 of upholstery springs 6 having their top and bottom turns enclosed within the inturned edges of fabric strips 7, 8 are connected together transversely by flexible strips 2, 3 preferably situated at the ends of the rows.
Patent GB-237724-A (GB)
Title: Improvements in and relating to containers for substances used in stick form
IPC: A45D40/00
Filed: 1924-07-21
Abstract: 237,724. International Bottle Co., Ltd., and Bennett, W. July 21, 1924. Contents, delivering. - Relates to containers for soap or other substances in stick form, of the kind in which the stick is supported upon a movable tray. According to the invention the tray is formed with a number of dimples or projections 5 carried resiliently upon strips 5<1> formed by cutting away the adjacent metal 6. The dimples are adapted to engage in any one of a series of annular grooves 2 in the container wall. The base of the container has the usual finger opening 3. In addition to the annular grooves, vertical guide grooves may be provided in the wall of the container, and an outer case of metal, glass, &c., also formed with a finger opening, may be provided.
Patent GB-884752-A (GB)
Title: Refining of heavy oils
IPC: B01J8/28
Filed: 1959-05-22
Abstract: Heavy oil containing at least 10% by volume of hydrocarbons boiling above 900 DEG  F. is cracked in the liquid phase in the presence of hydrogen and a moving, fine solid particles, which may be dispersed in the oil, to convert at least 25% by volume of the hydrocarbons boiling above 900 DEG  F. to hydrocarbons boiling below 900 DEG  F., and the cracked oil is hydro-desulphurized in the liquid phase in the presence of a sulphur resistant hydrogenation catalyst.  The total effluent from the cracking may be passed to the refining stage including the solid material if dispersed.  The solid may be clay, iron ore, alumina or silica gel.  Suitable conditions are 700-1000 DEG  F. in the cracking stage and in the desulphurization 650-850 DEG F. and 500-5000 p.s.i.g. using cobalt molybdate on alumina, tungsten sulphide or the mixed oxides of iron and chromium with 1,000-10,000 S.C.F. of hydrogen (including recycle) per barrel of charge stock (and an oil recycle rate of 2-20 volumes per volume of charge. Nickel and ranadium salts and complexes are also removed. Specification 569,339 is referred to.
Patent GB-976988-A (GB)
Title: Electron bunching device
IPC: H01J25/78
Filed: 1961-05-12
Abstract: 976,988. Electron beam apparatus; travelling wave tubes. STANDARD TELEPHONES & CABLES Ltd. May 12, 1961, No. 17485/61. Heading H1D. An electron bunching device includes electron gun electrodes for projecting a ribbon-shaped beam along a rectilinear path towards an electron collector, and, positioned in the order given between the electron gun electrodes and the electron collector: a first pair of beam deflection plates 6, 7 for deflecting the electron beam periodically to either side of the rectilinear path in directions normal to the width of the ribbon; an aperture plate 2 having slots parallel to the width of the ribbon arranged for alternate passage of the beam through a slot and interception of the beam; a second pair of beam deflection plates 9, 10 constructed and arranged for counteraction of the beam deflection produced by the first pair; and a pair of beam alignment plates 11, 12 constructed and arranged for realignment of the electron beam into a rectilinear path; the device also including means 4 for utilizing the electromagnetic field associated with the electron bunches produced by passage of the beam through the aperture plate. The aperture plate may be positioned after the second pair of beam deflection plates. The deflection plates may be in the form of flattened helix slow wave structures and are preferably fed with radio-frequency signals of a triangular waveform. The electromagnetic field utilization means may be a multi-slot antenna as shown, or a millimeter wave magnetic undulator, Fig. 3 (not shown), in which the cylindrical electron bunches follow a sinusoidal path under the action of magnetic fields and are subsequently deflected off axis to an electron collector.
Patent GB-901344-A (GB)
Title: Air heating apparatus
Inventor: BILLINGER BRIAN ARTHUR
IPC: F24H3/06
Filed: 1960-05-18
Abstract: 901,344. Air heating stoves. LUCAS (INDUSTRIES) Ltd., JOSEPH. May 11, 1961 [May 18, 1960], No. 17500/60. Class 64 (1). [Also in Groups XII and XXVI] Air heating apparatus comprises an annular combustion chamber 2 in which combustion occurs intermittently, gases from the chamber impinging on a turbine 7 which drives a fan 8, drawing air through the duct 1, the air being heated as it passes over the combustion chamber and angularly spaced flue tubes 14. The gases discharged from the turbine 7 pass to a manifold 13 thence through the tubes 14 to a second manifold 15 and finally discharge through outlet 16.
Patent GB-714546-A (GB)
Title: Tunable band pass electric filters
IPC: H01F27/245
Filed: 1952-07-11
Abstract: 714,546. Filters. STANDARD TELEPHONES & CABLES, Ltd. July 11, 1952 [July 13, 1951], No. 17565/52. Class 40 (8) A band pass microwave filter comprises a waveguide 1, one or more pairs of irises such as 2, 3 : 4, 5 ; 6, 7 spaced along the length of the guide and a strip of dielectric, e.g. polystyrene, arranged to project into the guide between the irises. The strip provides inductance and the irises provide capacitance in the guide which is excited in the TE 10  mode. The irises in each pair are spaced apart a distance equal to or slightly greater than #/2 of the resonant frequency, and the pairs are spaced from each other by a distance of 3#/4. The upper wall of the waveguide is slotted to accommodate the dielectric strip 10 which is itself slotted to fit over the irises 2, 3 &c. The ends of the strip are reduced in thickness at 12 for a distance of #/4 to form transformer sections. In a modification (Fig. 3, not shown) the depth of penetration of the strip 10 into the guide is adjustable by means of a screw-threaded vertical rod which passes through a fixed threaded boss and carries the strip at its lower end. The rod carries a calibrated dial. The magnitude of the resonant frequency varies in an inverse linear fashion with the depth of dielectric and a substantially constant symmetrical band pass response is obtained over a range of frequencies.
Patent GB-363292-A (GB)
Title: Improvements in and relating to electric control systems
IPC: B65H23/198
Filed: 1931-06-17
Abstract: 363,292. Winding webs. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- (Assignees of Allgemeine Elektricitõts-Ges.; 2, Friedrich Karl-Ufer, Berlin.) June 17, 1931, No. 17588. Convention date, June 17, 1930. [Class 100 (i)]. A motor 1 used for driving the rolling-up drum of a paper-making machine is connected, when operating, by a switch VII to a relay XII sensitive to armature current and to a field regulator VIII. The relay XII controls the regulator VIII to maintain constant armature current and hence constant tension in the paper. Should the paper break, the greatly reduced load on the armature causes a relay XI to open its contacts and thus render the relay XII ineffective to weaken the field in an attempt to restore the armature current to its normal value. Thus when the paper is rejoined the regulator VIII is at approximately the correct adjustment. Should the motor have to be stopped by opening a button V, the switch VII also opens and prevents further action of the regulator. When the drum is full, the paper is transferred to a second drum driven by a motor I<1>, which can then be connected to the same relays XI, XII and regulator VIII by the closure of a switch VII under the control of a switch VI.
Patent GB-584867-A (GB)
Title: Improvements in or relating to commutators particularly for dynamo electric machines
IPC: H01R43/08
Filed: 1944-09-15
Abstract: 584,867. Making commutators. HOOVER, Ltd., and DIMMOCK, W. J. T. Sept. 15, 1944, No. 17673. [Class 83 (i)] [Also in Group XXXV] In commutators formed from a strip bent into a ring and slotted to provide a series of tongues which are embedded in a mass of moulded insulating material prior to the ring being cut into separate segments, the tongues have slots for the entry of moulding material to assist in fixing the segments. In the form shown a strip A is first slotted at A', and the slot openings partially or completely closed as by punching at A<2>, Fig. 2, and then slots are cut leaving the tongues A‹, Fig. 3. The strip is then bent into a ring, and the tongues are embedded in the moulded insulation. Figs. 5 to 8 (not shown) illustrate a process in which tongues are formed within a tube as by broaching and transverse slots are cut and partly or completely closed as before.
Patent GB-1502053-A (GB)
Title: Twin-needle sewing machine with guide means for simultaneously stitching a pair of concealed sliding clasp fastener stringers to a fabric
IPC: D05B35/06
Filed: 1976-04-30
Abstract: 1502053 Twin needle sewing machine throat plates YOSHIDA KOGYO KK 30 April 1976 [6 May 1975] 17673/76 Heading D1G A twin needle sewing machine has a throat plate 11 below a presser foot 13, the throat plate having a pair of channels 16 extending in the direction of sewing to accommodate the stringer tape edges of a sliding clasp fastener while being sewn onto a fabric, and also having a pair of apertures 19 for the respective needles 15. The machine may also have a cutter to sever fabric between the sewn on tapes of the fastener. The throat plate is raised above the machine bed 10 by a height equal to the depth of the channels 16.
Patent GB-145560-A (GB)
Title: Improvements in or relating to the planes of aeroplanes
IPC: B64C3/00
Filed: 1920-06-29
Abstract: 145,560. Besson, M. April 4, 1919, [Convention date]. Planes, arrangement of.-A multiplane aeroplane comprises several groups of cells of equal chord length arranged one behind and overlapping another, the planes of a rear group being displaced vertically an amount equal to one-half the gap between the planes of the adjacent forward group. Fig. 1 shows a group of two biplane cells of considerable gap and having an interplane strut c common to both cells. The spars a<2>, b', and the diagonal braces d pass through the strut. A modification is described in which independent struts connect the four intermediate spars of the group. The planes of the front cell are preferably thicker, flatter underneath, and set at a smaller angle of incidence than those of the rear cell.
Patent GB-1063153-A (GB)
Title: Catalytic process for the manufacture of phthalic anhydride
Inventor: THOMAS PETER JAMES
IPC: C07C51/215
Filed: 1965-02-26
Abstract: Phthalic anhydride is produced by interacting o-xylene with oxygen in the vapour phase at an elevated temperature in the presence of a catalyst comprising an oxide of vanadium supported upon titanium dioxide.  The catalyst preferably contains 5 to 60 parts of a vanadium oxide (calculated as V2O5) per 100 parts of titanium dioxide.  A suitable catalyst may be prepared by adding granular titanium dioxide to a solution of ammonium metavanadate, evaporating the mixture to dryness and calcining the residue in air.  In the reaction, from 5 to 15 parts of oxygen are preferably used for each part by volume of o-xylene, and a gaseous diluent, e.g. nitrogen may be present.  The preferred reaction temperatures are in the range 250 DEG  to 550 DEG  C.
Patent GB-477347-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J43/20
Filed: 1936-06-25
Abstract: 477,347. Electron multipliers. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. June 25, 1936, No. 17695. Convention date, July 31, 1935. [Class 39 (i)] A multiplier having two or more sets of electrodes has insulating means confining the electron streams so that they impinge without loss on the secondary emitting electrodes. As shown, in a tube of the " hopalong " type, the emitting electrodes 1, ... 6 and the withdrawing electrodes 11, .. , 16, are secured by lugs to mica strips A, B forming with the electrodes a closed channel. The output electrode 16 has a gauze portion 16a closing the end of the channel, and the electrode 11 is translucent, e.g. made with a wire gauze panel 11a so that light can fall on the cathode 1 when this is photo-electric. The electrodes 11 and 2, 12 and 3, .... , 15 and 6, are connected to common leads. The magnetic field may be set up by a coil, a permanent magnet, or a coil and pole-plates N. The cathode may be thermionic. The emitting electrodes may be caesium on oxidized nickel or silver or rubidium on oxidized silver.
Patent GB-613250-A (GB)
Title: Improvements in or relating to pistons for fluid compressors
IPC: F04B39/04
Filed: 1946-06-13
Abstract: 613,250. Pistons. PUGH, C. A., DARBY, L. A., and PLESSEY CO., Ltd. June 13, 1946, No. 17709. [Class 122 (i)] The piston of a fluid compressor comprises a self-lubricating sleeve 9 of carbon, graphite or a compound of carbon and soft metal particles, mounted on a metal cone 5. The sleeve is retained at its lower end by a flange 8 on the core 5, a spring 10 being interposed between the end of the sleeve 9 and the flange 8, and at its upper end by a cover-plate 14 containing apertures 16. Between the cover-plate 14 and a plate 11 fitted into the sleeve 9 is an inlet valve 13 of disc form covering a central aperture in the plate 11. Bolts 15 which secure the plates 11, 14 to the top of the core 5 prevent rotation of the gudgeon-pin 7. The little end bearing of the connecting rod 20 contains a bush 6 of similar material to the sleeve 9.
Patent GB-274077-A (GB)
Title: Improvements in or relating to electric soldering irons
IPC: B23K3/03
Filed: 1927-07-04
Abstract: 274,077. British Thomson-Houston Co., Ltd., (Assignees of Abbott, C. C.). July 6, 1926, [Convention date]. Couplings and connectors. - A soldering-iron comprises an electric resistance 11 carried by means of a helix connected to a handle 31. The ends of the resistance wire are folded on themselves, twisted and secured in terminals 13, 14 by swaging over the edges of the grooves in the terminals in which the twisted ends are placed. The terminals are passed through articulated insulators 36 and secured by binding, to a fibre &c. strip 39, having holes through which flex may be led in order to be connected by twisting and binding to the terminals on opposite sides of the strip, the end of the strip seating against a shoulder in the handle.
Patent GB-796249-A (GB)
Title: Improvements in and relating to a transparent hot and cold insulating unit
IPC: E06B3/67
Filed: 1956-06-08
Abstract: 796,249. Insulating double window. CORCORAN, L. J. June 8, 1956, No. 17851/56. Class 20(3) A transparent insulating unit, reversible for use in hot or cold climatic conditions. comprises an outer sheet of glass or like material 15, an inner sheet 18 and a louvred screen 22 supported between them. together forming a heat radiating section 27 adhesively secured in the frame 11 at 28. and a second outer sheet 32 secured at 41 and spaced from the sheet 18 by a spacer 36, 37 sealed at 40, leaving a dead air space 35. In the cold weather setting, Fig. 2, the sun's rays from direction 52 strike the sloping surfaces 48, preferably darkened to absorb heat, and are transmitted via the sheet 15 to the interior of the building. The space 35 reduces the flow of heat to the outer face 32 The change to hot weather setting the unit may be made removable or pivotable on trunnions vertically or horizontally. The section 27 will then be outermost with the brightened reflecting surfaces 49 uppermost if the unit was pivoted on a horizontal axis. The outer atmosphere tends to remove heat absorbed by the section 27 and the space 35 reduces transmission of heat to the interior of the building. For positioning on the north side of a building the surfaces 49 might be darkened to keep out sun rays reflected from other buildings or objects and to absorb some heat. If the unit is pivoted on a vertical axis the darkened surfaces remain uppermost and the louvres slope downwardly from the sheet 15, in which position rays reflected upwardly from water, snow etc., would be kept out of the building.
Patent GB-259658-A (GB)
Title: Improvements in ignition indicators for internal combustion engines
IPC: F02P17/00
Filed: 1925-07-13
Abstract: 259,658. Lee, H. A. July 13, 1925. Testing ignition.-Neon or like tubes C are mounted in a single casing of ebonite or the like secured to the dashboard of a car &c. Each tube has electrodes fused in, and is visible through openings in the casing. Retaining sockets G, D', are fitted, the latter being spring-pressed and in communication with a lead H.
Patent GB-1397821-A (GB)
Title: Moulding method and apparatus
IPC: B29C49/00
Filed: 1972-04-18
Abstract: 1397821 Making moulds for casting AKITA KK 18 April 1972 [27 April 1971 (2) 25 June 1971] 17902/72 Heading B3F A method of making a metal-casting mould comprises providing a mask 12, 14 (of soft or rigid synthetic resin) having a surface complementary to a surface of an article to be moulded, the opposite surface being backed by compacted heat-resistant particulate material (e.g. silica sand) and holding the mask against the material by reducing the air pressure therein. (Additional holding is obtained by the sand biting into the mask). Figs. 5 and 6 show the 0À02 mm. thick vacuum-formed synthetic resin masks 12, 14. The wooden, plaster of Paris, synthetic resin or metal patterns 4, 8, Fig. 8, are located backto-back by projection 16 and the masks 12, 14 located thereover. (Alternatively, they may be formed directly on the patterns). Flasks 18, 19 are then placed over the patterns and sand supplied through holes 20, 21. Presses 26, 27 are then advanced, the press-heads each having a ventilated plate 30, a coarse filter 32, a fine filter 34 and a ventilated plate 38. Compacting may be effected by, or increased by, vibrators 49, 50. The holes 20, 21 are closed and suction is applied through pipes 42, 43 thus holding the masks against the sand. The patterns are then removed, the mould parts moved together and the metal poured. Finally, air is re-introduced into the flasks and the casting removed, the unbonded sand dropping away. In a modification, a pattern 51 of wood, plaster of Paris, synthetic resin or metal, Fig. 14, is coated by vaporization in a vacuum chamber with a film of synthetic resin, the pattern having openings in its surface communicating with a central vent 54. Flasks are then brought together around the pattern and filled through openings 62, by blowing or pouring, and vented through ports 58. The flasks are evacuated of air through the vents 58 after covers 62 have been positioned. Instead of the covers 62, extensions of the masks 55 may be folded over. In a further modification, a sheet 76, Fig. 19, is laid over a filled flask and a shape impressed therein by a press 77, Fig. 19. In another modification, the mask consists of a bag 94, Fig. 25, placed within pattern halves 91 and vacuumformed. A perforated vent-pipe 95 covered with a filter 97 is then inserted. The internal space is filled with silica sand and then evacuated of air to form a core. The patterns may be coated with a release silicone. Modifying surface of casting.-The masks may be coated with powdered graphite, zirconium, or aluminium to affect the skin of the coating.
Patent GB-241638-A (GB)
Title: Improvements in or relating to drilling machines
IPC: B23B39/04
Filed: 1924-07-28
Abstract: 241,638. Parsons, W. H. July 28, 1924. Drilling-machines.-In a drilling- machine having one or more drills rotatably mounted in a slide or slides automatically fed by cam means, the work being automatically indexed and the machine continuing to act automatically until it is stopped, the drill-spindles are driven by a shaft parallel to themselves and geared to spurwheels splined thereon. As applied to a machine for drilling wheel-hubs 22, the opposed spindles 1, 1<a> are mounted in ball-bearing heads 2 reciprocated on guides 3 by cams mounted on a shaft worm-driven at 12 from the main shaft 8, which is rotated by fast and loose pulleys 9. The spindle 1<a> is driven by three gear-wheels 6 from the main shaft and the spindle 1 is similarly driven in the reverse direction by four wheels in a casing 16. The work 22 is mounted on a mandrel supported between a spring poppit 23, locked by a screw 25, and a flat-ended spindle 24 which engages a groove in the mandrel and carries an index-disc 27 i intermittently rotated by a pawl 29 reciprocated by a cam on the cam-shaft and engaging peripheral notches in the disc. A spring plunger also engages the notches to position the work: for each hole. Jigs.-The drill on the spindle 1 passes through holes in the index-disc 27 and the other drill is guided by a hole in a fixed member 36.