baber/WOPTO huggingface dataset:
Patent GB-949574-A (GB)
Title: Improvements in or relating to benzene dicarboxylic acid chlorides
IPC: C07C51/60
Filed: 1960-09-30
Abstract: Di-acid chlorides of phthalic acids are prepared by mixing an a ,a 1-hexachloroxylene and a phthalic acid in a molar ratio of 0.85-2.0:1.0, heating the mixture to between 100 DEG  and 250 DEG C. whereby hydrogen chloride is evolved and the di-acid chloride is produced and separating the di-acid halide; the reaction being carried out in a single step when the molar ratio of hexachloro-xylene to acid is greater than 1 and the reaction being carried out in two steps when the ratio is no greater than 1, the first step comprising reacting all of the acid and from 80% to 98% of the stoichiometric quantity of hexachloro-xylene to form the di-acid chloride and a polymeric residue, and separating the di-acid chloride; the second step comprising adding the balance of hexachloro-xylene to the residue and reacting the two to produce a distillable product comprising di-acid chloride, a trichloromethyl-benzoyl chloride and unreacted hexachloro-xylene, which may be recycled. Catalysts such as zinc and iron chlorides may be used in the reaction. The isophthaloyl and terephthaloyl chlorides prepared by this method may be used in fungicidal and nematocidal compositions (see Division A5). In examples the preparation of isophthaloyl and terephthaloyl chlorides is described.ALSO:Fungicidal and nematocidal compositions comprising, as essential active ingredient, isophthaloyl or terephthaloyl chloride obtained by reacting the corresponding acid with an a ,a 1-hexachloro-xylene (see Division C2) are described. The compositions may contain solid diluents such as Attaclays, diatomaceous earth, synthetic silica and flours, e.g. walnut shell, redwood, soyabean and cotton seed flours. The compositions may also contain liquid diluents and surface-active agents such as sodium and potassium oleates, sulphonated fish and castor oils sulphonated petroleum oils or acyclic hydrocarbons goulac, alkyl-naphthalene sodium sulphonates and alkaryl polyether alcohols.  In examples, aqueous acetone solution of isopathaloyl and terephthaloyl chlorides containing 0.01% of an alkaryl polyether alcohol are used to control nematodes (Panagrellus redivivus) in vitro and rust fungus (Uromyces phaseoli) in soil. Specified forms are sprays, emulsifiable concentrates, wettable powders, granules, pellets, solutions and suspensions.
Patent GB-408052-A (GB)
Title: Improvements in or relating to the production of electron emission increasing material
IPC: H01J9/04
Filed: 1932-11-29
Abstract: Finely divided barium or strontium carbonat<e> or a mixture thereof is obtained by precipitation with carbon dioxide of a solution of the oxide or oxides in a glycol such as ethylene glycol or in a polyhydric alcohol such as glycerine.  A solution of the corresponding nitrate or nitrite in glycol may be added to the mixture of carbonate and glycol, which may then be used for coating cathodes, the coated cathode being heated in an atmosphere of carbon dioxide to evaporate the glycol.  Precipitation of the carbonate may be effected at elevated temperature, for instance, at the boiling point of the solution, and its particle size be controlled by varying the rate of admission of carbon dioxide or the concentration or temperature of the solution.
Patent GB-827074-A (GB)
Title: Improvements in or relating to method and apparatus for centrifugally milling wheat or like grain into flour
IPC: B02C9/00
Filed: 1955-11-25
Abstract: 827,074. Milling grain. SAFETY INDUSTRIES Inc., [formerly SAFETY CAR HEATING & LIGHTING CO. Inc.]. Nov. 25, 1955 [Dec, 7, 1954], No. 33855/55. Class 58. [Also in Group II] Grain is milled to flour by centrifugally impacting a free flowing stream of grain by a series of break impact operations, separating bran from the resulting free lumps of indeosperm, sifting all material after at least some of the break impact operations, classifying the combined throughs, centriufgally impacting substantially all of the coarser stock from the classification by a series of intermediate breaks, combining substantially all of the throughs from the intermediate breaks with the finer stock from the classification, centrifugally impacting the combined stock in a series of reducing impacts, and sifting the stock from the reducing impact operations. Moisture is added to temper the grain prior to the break impacts. The apparatus comprises a series of centrifugal break impact mills Br 1-6 with means for directing grain therethrough, sifting apparatus bs 1-9 between the mills, classifying apparatus including a wire screen fs 1-6 means for directing throughs from the sifting to the classifying apparatus, separating apparatus As I, II to which at least some of the overs from the wire screen are directed, a series of centrifugal intermediate impact mills In 1-5 with means for directing stock from the separating apparatus thereto, the throughs from which are passed through a second classifier and then combined with the throughs from the wire screen, the combined throughs being directed to a series of centrifugal reducing impact mills Re 1-6. The separating means are preferably aspirators As I-II, Bran separated during the operation of each series of mills is directed to rollers 20, 22. Purifiers I pur 1-2 and Rpur 1-4 remove bran from the finest portions obtained from the two classifiers. Specifications 666,572, 666,630 [both in Group II] and 711,291 are referred to.
Patent GB-323605-A (GB)
Title: Improvements in and relating to photo-electric cells
IPC: H01J40/04
Filed: 1928-11-19
Abstract: 323,605. Geffcken, H., and Richter, H. Nov. 19, 1928. Vacuum tubes.-The carrier for light-sensitive material consists of a network of such fine mesh that the material is drawn into it by surface tension and capillary attraction. A copper network may be supported by a metal sheet, a glass plate, or the wall of the cell. The light-sensitive material is poured into the cell and shaken on to the network, excess being poured out subsequently. As shown, the cathode 4 and a tungsten or molybdenum anode 2 are of annular shape, and a funnel-shaped extension 6 of the cathode support may be provided, which allows light to pass through the cell and prevents diffused reflected light from reaching the sensitive layer. In a modification the light-sensitive material is confined between the wall of the cell and the network.
Patent GB-1535985-A (GB)
Title: Method and apparatus for placing objects into boxes
IPC: B65B5/06
Filed: 1976-08-16
Abstract: 1535985 Filling boxes SAPAL SOC ANON DES PLIEUSES AUTOMATIQUES 16 Aug 1976 [27 Oct 1975] 34070/76 Heading B8C A method of placing assorted chocolates &c. in boxes comprises disposing a set of the chocolates in a template 2, moving the template to a table where the chocolates are held by suction while the template is removed, moving walls 17 against the chocolates to bring them into an area corresponding to the inner space of a box 14 to be filled, and depositing the chocolates in the box. The templates are fed by a conveyer 4 past stations 5, 6 which supply empty cups 1 and chocolates 7 into the cups. Alternatively filled cups may be supplied. The moving walls may comprise the dihedron walls as shown or longitudinal and transverse walls (12<SP>1</SP>, 13<SP>1</SP>) having interslotting ends. A suction hood (15) is lowered over the inwardly moved walls and lifts the walls and chocolates over the box 14.
Patent GB-1125660-A (GB)
Title: Life raft
IPC: B63C9/04
Filed: 1967-07-25
Abstract: 1,125,660. Life rafts. A. C. SCHULTZ. 25 July, 1967, No. 34083/67. Headings B7A and B7S. A life raft 1 having a rigid cover 3 for protecting the raft against damage when stowed on board ship has a structure for erection to afford shelter for the shipwrecked persons, at least part of which is constituted by the protective cover. In Fig. 2 the shelter structure comprises the rigid cover 3 which can be raised and supported by members 2 pivotally mounted at the corners of the raft, and a canvas wall 4. The raft is reversible so that the underwater cover 3 can be lowered to form a stabilizing " keel."
Patent GB-1085684-A (GB)
Title: Device for weighing rod-like tobacco articles
IPC: G01G3/13
Filed: 1966-07-29
Abstract: 1,085,684. Weighing electrically. HAUNI WERKE KÍRBER & CO. KOMM. GES. July 29, 1966 [Aug.4, 1965], No.34095/66. Heading G1N.  The weight of a cigarette is determined by its effect on the resonance frequency of a Piezoelectric crystal. The cigarette 21 (Fig.2) is fed into a trough 15 mounted on a pivoted beam 14, formed with a vertical extension 17 resting on a Piezo-crystal 13 which comprises the frequency determining member of an oscillator. The oscillator output is fed through a filter which senses variations from the frequency due to a standard weight and could be used to control rejector mechanism. The crystal may be mounted in a moisture proof container Fig. 4 (not shown).
Patent GB-661865-A (GB)
Title: Improvements in or relating to automatic record-changing devices for gramophones
IPC: G11B17/16
Filed: 1947-12-24
Abstract: 661,865. Magazine gramophones. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Dec. 24, 1947. [July 31, 1946] No. 34128. [A Specification was laid open to inspection under Sect. 91 of the Acts, Dec..29, 1947.] Class 40 (ii). In an automatic record-changing device for gramophones, the pick-up arm 1, before each record is played, is moved into position by a control member, comprising a disc 4 and a cam 7, driven by the driving mechanism for the gramophone. A control arm 3, 3a which is immovably secured to the pick-up arm is provided with two rollers 5, 6, of which the roller 5 is arranged so as to be actuated by the cam 7 for moving the pick-up outwards away from a record after playing whereas the roller 6 is arranged so as to be actuated by the cam 7 for swinging the pick-up arm inward on to a record to be played, and is resiliently coupled by a spring 9 to the control arm so that the inward swing of the pick-up may be interrupted independently of the position of the cam 7. A three-armed lever for selecting different sized records comprises a feeler 11, which is actuated during record changing by a large diameter record, a second arm 12 which is thereby moved into a position in which movement of the control arm is stopped, and a third arm 14 which co-operates with a guide 13 in the disc 4 for resetting the three-armed lever. A stopping device 15 which may be automatically actuated prevents movement of the control arm when in an operative position. Specification 661,862 is referred to.
Patent GB-954450-A (GB)
Title: Improvements in or relating to methods of joining metal component parts
IPC: B23K35/30
Filed: 1962-09-07
Abstract: 954,450. Welding by pressure. PHILIPS ELECTRICAL INDUSTRIES Ltd. Sept. 7, 1962 [Sept. 12, 1961], No. 34360/62. Heading B3R. In joining metal parts in which one or more wires pass electrically insulated through one or more of the parts, a phosphorus-free nickelcobalt layer is electrodeposited on the parts at least in the regions to be joined, a phosphoruscontaining nickel layer is electroless deposited on the first layer and the parts are joined by the local supply of heat at the regions to be joined. The supply of heat may be by resistance welding. Parts to be joined may be the base of a transistor or crystal diode or electron tube, through which base connecting wires pass through glass leading-in members, and a metal cap or bulb. The nickel-cobalt layer may comprise nickel 40-60 preferably 50% cobalt 60-40 preferably 50% and this layer may be applied to the parts not only at the region to be joined but also at the location of the glass leading-in members.
Patent GB-212977-A (GB)
Title: Machine for welding of saw blades and the like
IPC: B23K9/00
Filed: 1922-12-18
Abstract: 212,977. Hauser, K. Dec. 18, 1922. Welding. - A machine for welding saws &c. is provided with a carriage in which one or more pairs of electrodes are mounted, the carriage being adjustably mounted below the work to ensure uniform heating. The saw 7, Fig. 1, is clamped to a table 8 by screws 11 and is heated by arcs struck between electrodes mounted on opposite sides of a carriage 12, Fig. 2, which can be moved transversely to the work on rollers 13. One or more pairs of electrodes may be in use at the same time, and may be automatically switched in or out by varying the position of the carriage on the partly insulated conducting rails 14. The carriage is retained in position against the action of spring mechanisms 16 by a pawl rod 17 fitted with a releasing push button 18. The work when heated is subjected to the pressure of screw-operated clamping-jaws 3, 4, to complete the weld. In a modification, designed particularly for welding saws of narrow width, a single pair of electrodes 20, 21, Figs. 4 and 5, is used, the electrodes being carried by conducting rods 35, 36 which are pressed apart by a spring 37 after instantaneous contact has been made to strike the arc. The rods are mounted in a carriage 23 fitted with a plate cam 25, by which it can be displaced transversely to the work on guide bars 22 by means of a hand lever 26 and roller 27. The hand lever is provided with a welding-clamp 28 and is interconnected by means of a link 29 with a second welding-clamp lever 31. On completion of the heating operation, the lever 26 is depressed thereby allowing the spring 24 to remove the carriage from beneath the work, and closing the welding-clamps to complete the weld. Current is supplied to the electrodes through sliding contacts 34. The electrode carriage may be arranged vertically. Specifications 4312/99 and 6384/00, [both in Class 83 (iii), Metals, Cutting], are referred to.
Patent GB-448187-A (GB)
Title: Improvements in or relating to overhead electrical conductors
IPC: H01B5/10
Filed: 1934-11-30
Abstract: The strengthening component of an overhead electrical conductor is formed of one of the following alloys: (1) an alloy of copper and tin containing 3 per cent of tin; (2) an alloy of copper and aluminium containing 5 per cent of aluminium, with or without 0,2 per cent of manganese; (3) an alloy containing 0,5 per cent aluminium, 0,2 per cent of manganese, 1,3 per cent of iron, 65 per cent of copper, and the balance of zinc; (4) an alloy of copper with 5 per cent of tin and 0,05 per cent of phosphorus.  The conducting component of the conductor may be constituted by a copper-cadmium alloy containing 1 per cent of cadmium.
Patent GB-841345-A (GB)
Title: Sterilisation solution
IPC: A01N35/02
Filed: 1958-10-28
Abstract: A sporicidal composition containing glyoxal preferably in an amount from 0,25 to 9% by weight of the composition, isopropyl alcohol preferably in an amount such that the final concentration of the alcohol is between 60 and 85% by weight and an alkalinating agent preferably a carbonate or bicarbonate of an alkali metal. Specified alkalinating agents are sodium and potassium bicarbonate, sodium and potassium carbonate dimethylaminoethanol, triethylamine, dibutylamine and dimethylaminoethanol.
Patent GB-405779-A (GB)
Title: Improvements in machines for slitting and rewinding cardboard, paper, strawboard andlike materials
IPC: B65H18/20
Filed: 1932-12-07
Abstract: 405,779. Winding webs. BENTLEY, C., 588, Fishponds Road, and THRISSELL ENGINEERING CO., Ltd., 3, Lawrence Hill, both in Bristol. Dec. 7, 1932, No. 34625. [Class 100 (i).] In a machine for slitting and rewinding webs of paper, cardboard, strawboard &c., of the kind in which the rewinding reel is rotated by friction contact with a pair of rollers, the rewinding reel is mounted in sliding bearings, and pressing members, operative upon the bearings to maintain the reel in contact with the pair of winding rollers, are moved to relieve the pressure as the winding proceeds. The spindle 1 of the rewinding reel is mounted in bearings 2 slidable on guides 3 and resting upon the bearings 2 are a pair of frames 8 pivoted at 9 and carrying weights 12 slidable upon rods 11. The weights are connected by links 16, 15 to quadrants 14 pivoted on the frames 8 and meshing with fixed quadrants 13 so that as the bearings 2 rise, the weights 12 are moved towards the pivots 9 to relieve gradually the pressure on the bearings 2 until the weights move beyond the balancing point of the carriages, whereupon the carriages swing bodily upwards clear of the bearings. The carriages may be restored to normal position by a hand wheel 19 and pinion 18 engaging a quadrant 17 on one of the carriages 8.
Patent GB-816147-A (GB)
Title: Improvements relating to door latches
IPC: E05B65/00
Filed: 1955-12-06
Abstract: 816,147. Catch fastenings. GENERAL ELECTRIC CO. Dec 6, 1955 [Dec. 6, 1954], No. 34990/55. Class 44 A door latch adapted to co-operate with a strike 8 for latching, a door 2 in a closed position comprises a latch bolt 11 pivoted on a supporting structure 9 and movable between a latching position and a retracted position, the bolt having a latching arm 14 adapted to engage the strike in the latching position and a control arm 15 for moving the bolt between said positions and over-centre mechanism effective yieldably to hold the bolt in the latching and retracted positions, said medhanism including a spring 20 and a single link 19 connected between the bolt and the supporting structure, actuating means adapted to engage the control arm for moving the bolt from the latching position to the retracted position to permit opening of the door and the strike directly engaging the control arm upon the closing of the door to snap the bolt from the retracted position back to the latching position. As shown the bolt is attached to the supporting structure 9 by means of a pivot pin 16 and has a roller 17 for engaging the strike. The link 19 is pivotally attached to the supporting structure 9 by means of a pin 21 and engages the latch bolt by means of a pin 23 engaging a slot 22 in the link 19. The spring 20 surrounds the link 19 and it is mounted between washers 24, 25 which engage the pins 21, 23. Thus the pressure of the spring on the pin 23 tends to hold the bolt either in its latching or in its retracted position. The actuating means comprises a handle 27 which is pivoted on a flange 28 of the outer wall 3 of the door by means of a pin 29 and one end of which bears against a push rod 30 which is slidably mounted in a sleeve 31. The push rod engages a roller 33 which is mounted in curved slots 34 in opposite walls of the supporting structure 9 and the roller in turn engages the control arm 15 of the latch bolt. Thus when the handle is pulled the push rod moves the latch bolt through the roller over its dead centre position to its retracted position. The latch bolt can also be moved from its latching to its reof the door. In a modification the link 19 tracted position by pressure on the inside is pivotally connected to the latch bolt and has a pin and slot connection with the supporting structure 9. The spring extends between the pin of the pin and slot connection with the supporting structure and the pivot pin of the latch bolt on the supporting structure.
Patent GB-1056649-A (GB)
Title: Sealing systems
IPC: F16J15/40
Filed: 1965-08-16
Abstract: 1,056,649. Stern tubes. E. K. DENSMORE. Aug. 16, 1965 [Aug. 31, 1964]. No. 34997/65. Heading B7S. [Also in Division F2] Each end of a stern tube 11 is sealed by a flexible leather disc 24 urged by fluid pressure into contact with a rigid disc 23 which is preferably made of brass and formed in two halves. Lubricating water is supplied under pressure to the bearings 15, 16 and is recirculated in a closed lubrication system. In a modification, Fig. 4 (not shown), the propeller boss 47 serves as one of the rigid discs on the shaft. If desired, the flexible discs may be mounted on the shaft instead of the stern tube.
Patent GB-1445499-A (GB)
Title: Burners for cigarette lighters
IPC: F23Q2/16
Filed: 1974-08-09
Abstract: 1445499 Burners WINGAERSHEEK Inc 9 Aug 1974 [20 Aug 1973] 35200/74 Heading F4T A burner for a cigarette lighter is made by crimping one end of a metal tube to form a portion 15, 16 for connection to a fuel pipe 12 and define adjacent air inlets 18, 19, crimping intermediate its ends to form a jet pump tube 21 and inserting in the other end a disc-like member 31 which has vanes 33 which are struck out from the disc and impart a swirling motion to the gas/air mixture. The disc member is held by a dimple at 40. A wire 51 is positioned across the mouth of the burner which produces incandescence to indicate the presence of a flame.
Patent GB-338004-A (GB)
IPC: H04B7/08
Filed: 1929-11-18
Abstract: 338,004. Marconi's Wireless Telegraph Co., Ltd., (Assignees of Peterson, H. 0.). Nov. 16, 1928, [Convention date]. Fading, preventing; thermionic valve circuits.-A method of reception for the elimination of the effects of fading comprises utilizing a plurality of aerials, sepirately rectifying the collected energies and controlling the anode potentials of the valves used for said rectification in accordance with their combined outputs in such a way as to feed a utilization circuit predominantly from that aerial at which the collected energy is a maximum. Aerials 112, 114, 116 are coupled by transmission lines 122, 124, 126 to radio-frequency amplifiers 132, 134, 136, and an intermediate frequency is produced by autodyne detectors 142, 144, 146, the outputs of which pass through amplifiers 152, 154, 156 and hence to anode-bend detector valves 162, 164,'166. The anodes of these detectors are fed from a battery 58 through a common impedance 60, and include low-pass filters 212, 214, 216. A rise in signal strength from any of the detectors results in an increased current in the resistance 60 and a consequent voltage drop on all the detector anodes, which weakens the output from those detectors handling weak signals to a greater degree than that from those handling strong signals making the, latter predominant in the output amplifying stage 62 which may feed " monitoring " reproducers 70, 72, and are-transmitter 68. The action may be further emphasised by the automatic control of the grid-bias of the detectors 162, 164, 166, by their respective anode currents. For example the passage of the anode current of valve 162 through the resistance 172 controls the bias on the grid of a regulator valve 182, and hence its anode current, which traverses a resistance 192, which in turn controls the gridbias of the detector valve 162. The effect of a strengthened signal is to make the detector grid more positive and increase its output, but this effect is more pronounced in those detectors dealing with stronger signals and their outputs thus predominate in the output stage 62. The automatic control of grid-bias may. be omitted. The aerials are geographically spaced or situated in different planes of polarization. Specification 306,460 is referred to.
Patent GB-1267546-A (GB)
Title: Inductive winding
Inventor: BERG LEONARDUS FRANCISCUS VAN
IPC: H02K3/00
Filed: 1969-07-14
Abstract: 1,267,546. Making inductive windings. L. F. VAN DEN BERG. 14 July, 1969 [12 July, 1968], No. 35280/69. Heading B3A. [Also in Divisions H1 and H2] In an inductive winding provided with a ferro-magnetic circuit, the winding and the circuit are formed simultaneously by winding an electrically insulating magnetizable tape (1) carrying an electrically conductive pattern (2), Figs. 1, 2, 3 (not shown). The pattern is applied to the tape by any method, e.g. printing, spraying, sintering, vacuum- or electro-deposition. The pattern may be straight, zig-zag, wave or in the shape of a rectangle (4) with a corner cut-off, the latter when wound forming an electromagnet with a conical recess, Figs. 4, 6 (not shown). Stators 9, 10 are made from a tape having a square-wave conductive pattern, a pole wheel being arranged therebetween. A rotor may be made from a tape carrying a zig-zag conductive pattern so that the winding turns lie in planes inclined to the axis.