baber/WOPTO huggingface dataset:
Patent GB-1375793-A (GB)
IPC: H05K1/09
Filed: 1972-02-03
Abstract: 1375793 Coated products MATSUCHITA ELECTRIC INDUSTRIAL CO Ltd 3 Feb 1972 [3 Feb 1971 9 Feb 1971] 5100/72 Heading B2E [Also in Division C3] Sheets of phenolic, epoxy, melamine, urea, or modified phenolic resin are coated with a composition comprising metal particles in flake and in dentritic forms dispersed in a thermosetting binder and a solvent therefor. The coating is then heat-cured. It is electrically conductive. In the composition, there may be by weight 10-60% flake and 40-90% dendritic particles, based on total metal particles. By vol. based on total composition there may be 10-50% binder and 50-90% metal particles. The binder may be a phenolic, xylene, urea, epoxy, or modified phenolic resin. The flakes may be of Cu or Ag and may have diameter 1-10 Ám thickness 0.01-0.1 Ám, and floating ratio >60%. 1-20% wt. stearic acid may be present as a coating on the flakes. The dendritic particles may be of Cu or Fe and may have av. particle size 10-15 Ám. The coating may be applied by spraying, dipping, brushing, or screen-stencilling. In the figure, insulating sheet 1 is coated with conductive film 2 comprising metallic dendritic particles 4 and flakes 3 dispersed in binder 5. Owing to the floating characteristics of flakes 3, these occur in greater concentration at the outer surface of the film while particles 4 are uniformly distributed. The metal flakes may be coated with stearic acid by working up the two ingredients in a ball-mill. The treated flakes are then stirred with methanol at room-temperature and dried at 120‹C. Use:-printed circuits.
Patent GB-1486114-A (GB)
Title: Gear selector mechanism
IPC: G05G5/18
Filed: 1976-02-04
Abstract: 1486114 Change speed control CHRYSLER UNITED KINGDOM Ltd 4 Feb 1976 [6 Feb 1975] 5158/75 Heading F2D A gear selector mechanism, particularly for the automatic transmission of a motor-vehicle, is controlled by a manual lever 10 secured to a pivot pin 15 to pivot in one plane, and the lever has a transverse push button 52, depression of which cams down an internal spring-loaded rod 38, disengaging a detent pawl 43 carried thereby from a notched quadrant 45 and coupling the lever 10 positively to the welded boss 28 of an arm 30 linked to the gear selector. Prior to such action the coupling allows limited movement of the selector relative to the lever 10. In Figs. 1 and 2 the coupling is a ball 37 pressed outwardly, to the lost-motion position shown, by a spring 36 reacting on a looselyfitting plunger 35 in a diametral bore 34 of the pin 15, and registering radial bores in the boss 28 of the gear selector arm 30. In the position shown, with the detent pawl 43 engaging the quadrant 45, the ball 37 lies only partly in the pin bore 34, thereby allowing lost motion and hence the limited independent movement of the selector arm 30, whereas, when depressed by the push button 52, the ball diameter occupies the junction of the pin and boss bores, effecting positive coupling with no lost motion. The pivot pin 15 turns in a bracket formed by spaced parts 22 to which the quadrant 45 is bolted. In Fig. 3, not shown, the coupling ball and plunger are replaced by a single cylindrical plunger (55) secured to the rod 38 and having a waisted portion which permits lost motion in the button-released position, whilst in Fig. 4, not shown, such a plunger has a coned end permitting lost motion. The quadrant notches 44 may be inclined on one side to permit free movement towards neutral and park settings which latter have non-inclined locating notches, whilst in Fig. 5, not shown, all the notches are non-inclined.
Patent GB-592347-A (GB)
Title: Antenna array
IPC: H01Q21/08
Filed: 1944-03-20
Abstract: 592,347. Aerial arrays. STANDARD TELEPHONES & CABLES, Ltd. March 20, 1944, No. 5206. Convention date; Dec. 16, 1942. [Class 40 (v)] In an aerial array such as a dipole stack, the component aerials are designed to present different impedances to the feeder in order that the currents in them may differ in amplitude, the feeder itself having uniform characteristic impedance. In the dipole stack shown in Fig. 1, the component dipoles 14, 15, 15A, 16, 16A differ in diameter so that their impedance decreases towards the centre of the stack. They may be #/4 apart and their impedances may be such that the currents in them are proportional to the coefficients in a binomial expansion. The legs of the feeder are crossed at 17, 18, 19, 20. In a modification, Fig. 2 (not shown), the spacing is #/2 and the legs of the feeder are crossed at the centre of the stack but may or may not be crossed at other points. In a further modification, Fig. 3 (not shown), the dipoles are of equal diameters, but different lengths, and may be shunted by stubs to neutralize their reactance. In a further modification. Fig. 4 (not shown), the stack may be fed from one end instead of the centre.
Patent GB-908420-A (GB)
Title: Apparatus for purging air from engine cooling systems
IPC: F01P11/02
Filed: 1961-02-13
Abstract: 908,420. Cooling systems for engines. CATERPILLAR TRACTOR CO. Feb. 13, 1961 [April 20, 1960], No. 5217/61. Class 64 (3). [Also in Group XXVII] The coolant system of an engine comprises a radiator with a vented top tank, a pump for circulating water through passages in the engine, a wall restricting flow between the passages and vented tank, and means to purge air from the upper part of the passages by means of a cell placed in the wall and communicating between the passages and the vented top tank by means of restricted orifices, the cell being connected to the upper part of the passages. The pump 12 causes water to flow through the cylinder block 10, around the liners 16 and pistons 17, through the cylinder head 11 and opening 20 and upwardly through the thermostatic valve 22 to the vented radiator 24. The valve 22 prevents the passage of the coolant if its temperature is below a certain value. Entrapped air collects at the rear of the cylinder head 11 and is purged from here through the tube 31 to the cell 30, the orifice 33 then allows the air to escape to the atmosphere via the tube 24b. The coolant pressure below the cell 30 is greater than atmospheric pressure above it, and the median pressure in the cell is considerably less than that in the rear cylinder head; thus entrapped air is easily purged from the system.
Patent GB-308204-A (GB)
IPC: D03D37/00
Filed: 1929-02-16
Abstract: 308,204. Clark, R. G. March 19, 1928, [Convention date]. Shedding-mechanism.-In a design-weaving attachment, certain of the warp thread shedding- needles 13, 13<a> which are normally moved up and down alternately by wavy cams 16, 17 to produce a plain fabric, are caused to remain down, so that the shuttles may pass over the corresponding warp threads and thus produce designs. The invention is shown applied to circular looms, but may be applied to other looms. The cams 16, 17 are carried by a rotating disc 18 provided with a spacer 20 and the needles 13, 13<a>, which have narrowed portions 62, 62<a> engaging the cams, have notches 64 engaged by latches 63 rockably supported on a slotted annular spacer 69 attached to a fixed casting 52, the latches normally moving up and down with the needles. When it is desired to produce designs, a disc 45 provided with a cam ring 44 engaging cam-rollers 43 on spring- controlled frames 39 carrying pattern drums 48 is turned about a stationary shaft by means of a handle, whereby certain pattern drums are moved into operative position and raised patterns 70 thereon act on feelers 68 on the latches 63, so as to move certain of these from the notches 64 into clearance spaces 65 in the needles, thereby allowing these needles to drop out of engagement with the cams 16, 17 as shown in dotted lines and remain down. The drums 48 are rotated intermittently by means of ratchet wheels thereon actuated by spring-controlled pawls on spring-controlled rocking arms 50 actuated by rods 53 guided by holes in the fixed circular casting 52 and engaged by an annular rotating cam 55 on the rotating disc wheel 18. Adjustable spring-controlled pawls 57 prevent over-running of the drums. For long patterns, pattern chains are used passing over the drums. In a modification described, for producing a continuous design all round the fab. ric, a number of pattern drums are arranged to operate offset feelers, which control latches engaging the shedding needles. These are guided by fixed annular slotted spacers 60, 61.
Patent GB-181767-A (GB)
Title: Indicator devices for internal combustion engines
IPC: F02P17/00
Filed: 1921-02-16
Abstract: 181,767. Gerlach, H. Feb. 16, 1921. Testing. - Terminals 40 - - 43 connected into the circuits between the magneto and sparking-plugs, may be earthed in pairs by a bow 44 which is actuated by a handle 46 movable in a slot 48 in the base of the apparatus. In a modification, equally spaced terminals 50 - - 53, Fig. 6 are used with unequally spaced projections 57, 58, 59, 60, any pair of which may be brought into sparking relationship by means of the handle 61. An additional projection 69, Fig. 7, may be brought into contact with or maintained at sparking distance from an angular member 68, this gap or pair of contacts being in series in the ignition circuit.
Patent GB-1204787-A (GB)
Title: Production of 6,10-dimethylundecatrien-(3,5,10)-one-(2)
IPC: C07C45/67
Filed: 1968-02-02
Abstract: 1,204,787. Unsaturated ketones; acetoacetic esters. BADISCHE ANILIN- & SODAFABRIK A.G. 2 Feb., 1968 [4 Feb., 1967], No. 5421/68. Heading C2C. 6,10 - Dimethylundecatrien - (3,5,10) - one (2) is prepared by pyrolysing 3,7-dimethylocten- (7)-yn-(1)-yl-(3) acetoacetate at 100-400‹ C., the pyrolysis being conducted in the presence of an acid catalyst and/or the product of the pyrolysis being heated at 100-400‹ C. with an acid catalyst. 3,7 - Dimethylocten - (7) - yn - (1) - yl - (3) acetoacetate, which is said to be a novel compound, is prepared by reacting 3,7-dimethylocten-(7)-yn-(1)-ol-(3) with diketene in the presence of an alkaline catalyst. #-Ionone is prepared by cyclizing 6,10-dimethyl - undecatrien - (3,5,10) - one - (2) in hexene with cone. sulphuric acid.
Patent GB-997751-A (GB)
Title: Combine harvester
IPC: A01D41/12
Filed: 1964-02-10
Abstract: 997,751. Combine-harvesters. H. CLAAS. Feb. 10, 1964 [March 5, 1963], No. 5474/64. Heading A1F. In a combine-harvester in which various adjustable parts (e.g. the reel, and cutterplatform) are hydraulically-operated and the steering is also hydraulically-actuated, the hydraulic circuit comprises a pump 28 and two control valves 23, 24 in series, the valves controlling respectively the steering device 22 and rams 13, 15, 17, 18 for adjusting the other parts, each controlvalve being bridged by a relief-valve 34, 35 capable of opening at the maximum partial pressure required to operate the valve it bridges, the working pressure of the pump being at least equal to the sum of the partial pressures for the two control valves. In the form shown, the device 22 is a ram operating upon the rear axle of the combine, which is self-propelled. There is neegligible pressure-drop across the valves 23, 24 while the devices they control are inoperative, so that the pump 28 works at full pressure only when several adjustable devices are simultaneously operated.
Patent GB-1488177-A (GB)
Title: Protective diode network for field effect transistors in a semiconductor circuit
IPC: H01L27/06
Filed: 1975-02-10
Abstract: 1488177 Integrated circuits RCA CORPORATION 10 Feb 1975 [11 Feb 1974] 5496/75 Heading H1K [Also in Division H3] An integrated circuit having two FETs 14, 16 with their source electrodes connected to a common point 17, includes three diodes D1-D3 for providing protection against excessive input voltage. With the diodes connected as shown the P.D. between the gates 14g, 16g, or between either gate and point 17 is prevented from exceeding V B  + V BE , where V B  = breakdown reverse voltage and V BE  = forward voltage drop of each diode. Parasitic diodes D P1 , and D P2  occur between P-type substrate 10 and N- type epitaxial layer 11, and between layer 11 and the P region 20 in which D1-D3 are formed, respectively. The leakage current through D P1 , D P2  flows through D2, and is therefore diverted from the gates of the FETs. An N + region 16N serves to connect the sources 14S, 16S to the epitaxial layer 11.
Patent GB-896813-A (GB)
Title: Improvements in or relating to organic peroxides
IPC: C07C409/16
Filed: 1960-02-16
Abstract: A process for the preparation of organic peroxides comprises reacting a compound having one or more hydroperoxy groups with a compound having one or more alcoholic hydroxy groups at a temperature below 80 DEG C. in the presence of an acidic catalyst and eliminating water from the reaction under reduced pressure and/or with the aid of a volatile inert organic liquid.  Preferred organic liquids are xylene, toluene, petroleums boiling in the range 100 DEG C.-160 DEG C., pentane and di-tert. butyl peroxide. Examples describe the preparation of the new compounds cumyl - diphenylmethyl peroxide, cumyl - 3,5,5 - trimethylhexyl peroxide, cumyl - peroxyethylene - ethoxyethoxyperoxy - cumene and cumyl - p - isopropyl - phenylisopropyl - peroxide.  The preparation of dicumyl peroxide, cumyl p-methyl peroxide, cumyl-1-tetrahydronaphthyl peroxide, cumyl tert. butyl peroxide, cumyl triphenylmethyl peroxide and tert. butyl triphenylmethyl peroxide is also described.  Specification 792,558 is referred to.
Patent GB-870370-A (GB)
Title: Injector mill
IPC: B02C19/06
Filed: 1960-02-16
Abstract: 870,370. Jet mills. SCHERING A. G. Feb. 16, 1960 [Feb. 24, 1959], No. 5532/60. Class 59 A jet mill comprises a grinding chamber  A having its peripheral wall formed in steps, an inlet C for the material to be ground and an exit tube B for the mixture of fluid (gas or vapour) and ground material. The fluid is supplied to a nozzle D and to inlets E, F and G and enters the grinding chamber through nozzles d, e, f and g, the nozzles e, f and g being tangential to a theoretical circle within the grinding chamber and concentric with the latter. The nozzle D is mounted in the inner of the two eccentric discs H 1 , H 2  either or both of which, can be rotated to vary the angle between the horizontal projection of the axis of the nozzle D and the corresponding radius of the grinding chamber. Incrustation of the grinding chamber can be removed by moving a valve plate K downwardly to close the exit tube B and at the same time expose openings L in the guide tube of the valve plate; the grinding chamber can then be rinsed out or dried by means of suitable liquids, vapours or gases introduced through the inlets D, E, F and G and discharged through the outlets L. The peripheral wall of the grinding chamber may alternatively be provided with only two or more than three steps, inlet nozzles being provided in one or more of the steps.
Patent GB-1528293-A (GB)
Title: Electronic timepiece
IPC: G04G9/00
Filed: 1977-02-10
Abstract: 1528293 Electronic timepieces SUWA SEIKOSHA KK 10 Feb 1977 [12 Feb 1976] 05566/77 Heading G3T A "world time" electronic timepiece, Fig. 1, has a display device, e.g. liquid crystal, including twenty-four display elements 14 each indicating the name (not shown) of a respective geographical location. In response to operation of manual switches the elements 14 are sequentially activated in either direction until a given location is reached and display elements 11, 12, 13 will indicate respectively the minute, hour and date at that location. The timekeeping circuit Fig. 2 (not shown) is formed in an I.C. chip coupled to the display by a multiplex arrangement knot illustrated) and in addition to an oscillator circuit, frequency divider and normal time and date counters, includes a time difference counter (26) e.g. up-down type, and an adder (27).
Patent GB-1385247-A (GB)
Title: Water-borne craft
IPC: B63B39/08
Filed: 1972-02-07
Abstract: 1385247 Controlling attitude of marine craft; air cushion vehicles HOVERMARINE TRANSPORT Ltd 6 Feb 1973 [7 Feb 1972] 5570/72 Headings B7A B7M B7V and B7K A water-borne craft is provided with a laterally-extending outlet 10 for discharging water from the craft at a position 11 remote from the centre of gravity of the craft so as to cause a local change of water pressure on an adjacent immersed portion 3 of the craft. In the embodiment of Fig. 4 (not shown), pitching and rolling can be corrected. The embodiment of Fig. 8 is a side-wall gas cushion vehicle and water is discharged from outlet 99 at position 100 in each of the pair of side-wall structures 89. In this embodiment pitching is corrected.
Patent GB-1104512-A (GB)
Title: Extraction of aromatic hydrocarbons from hydrocarbon mixtures
IPC: C10G21/00
Filed: 1965-02-10
Abstract: In a process wherein the overall effect is to separate by solvent extraction alkyl naphthalenes from the remaining mainly aliphatic constituents of cycle oil, two extraction zones are used each containing the same solvent which is a single phase mixture of furfural, furfuryl alcohol and water, optimum proportions by weight being 36%, 54% and 10% respectively. As shown, the cycle oil is fed to extraction zone 2 through line 7, the feed to extraction zone 1 along line 3 being a displacer oil, i.e. a mixture of xylenes and non-aromatic hydrocarbons, e.g. C6 to C8 paraffins, the mixture preferably having a boiling range at least 56 DEG  C. lower than the cycle oil.  The extract from extraction zone 2 contains the alkyl naphthalenes and is passed via line 10 to extraction zone 1 where the xylenes of the displacer oil displace the alkyl naphthalenes into the raffinate. The extract from extraction zone 1 is passed via line 6 to extraction zone 2 where the alkyl naphthalenes displace the xylenes into the raffinate.  The raffinate from extraction zone 1 is passed via line 5 to distillation zone 3 where the alkyl naphthalenes are separated and removed, the other constituents being recycled to extraction zone 1 via line 31.  The raffinate from extraction zone 2 is passed to distillation zone 4 where the non-aromatic constituents of the cycle oil are separated and removed, the remaining constituents, mainly xylenes and some solvent, are recycled to extraction zone 1 through line 31. <PICT:1104512/C4-C5/1>
Patent GB-271580-A (GB)
Title: Improvements in water insoluble colours or dyes
IPC: C09B69/04
Filed: 1926-03-02
Abstract: 271,580. Marks, E. C. R., (Du Pont de Nemours & Co., E. I.). March 2, 1926. Lakes.-Dyestuffs which contain acid groups, such as acid, direct, and chrome dyestuffs, are converted into arylguanidine salts. The products are insoluble in water but soluble in methyl or ethyl alcohol, acetone, ethyl acetate, &c. and are useful for dyeing pyroxylin products and for colouring spirit varnishes. According to examples salts are obtained from the following :-(1) di-mxylylguanidine and Pontamine yellow CH (ethylated disulphostilbene-disazo-phenol); (2) di-o-tolylguanidine and Pontamine sky blue 6BX (from dianisidine and 1 : 8-aminonaphthol-2 : 4-disulphonic acid) ; (3) diphenylguanidine and eosine, or Crocein scarlet (benzeneazobenzeneazo-2-naphthol-6: 8-disulphonic acid), or Pontacyl green BL (from benzaldehyde and ethylbenzylanilinesulphonic acid): (4) di-o-tolylphenylguanidine and Metanil yellow (m-sulphobenzeneazodiphenylamine). In each case the sodium salt of the dyestuff is treated in aqueous solution with acetate or hydrochloride or other salt of the aryl guanidine. Benzopurpurine 4B is also specified as parent material.
Patent GB-1215252-A (GB)
Title: Improvements in or relating to a dosing device for powdered products contained in a tank
Inventor: BURION ETIENNE PHILIPPE
IPC: G01F13/00
Filed: 1969-02-04
Abstract: 1,215,252. Dosing device. E. P. BURION. 4 Feb., 1969 [5 March, 1968], No. 5940/69. Heading BIC. A device for dosing powder into a boiler 13 comprises a tank 1 provided with a flexible diaphragm 4, a mixing chamber 8, supported by the flexible diaphragm and connected to the plunger 17 of a solenoid 18, a calibrated nozzle 7 interconnecting the tank and mixing chamber, and piping 10, 11, 12 connecting the mixing chamber to the boiler. The mixing chamber is provided with a sloping floor 9 and is connected to an air inlet tube 16. Alternate energisation and deenergisation of the solenoid causes the mixing chamber to vibrate thereby permitting powder to enter the mixing chamber with air from tube 16, the air-powder suspension being discharged into the boiler 13. The tank may be provided with a further calibrated nozzle 25 and a non-return valve 26 for entry of air thereto. Actuation of the solenoid may be controlled by a programmer assembly, comprising motor 23, gear reducer 22, and cam 21.
Patent GB-636682-A (GB)
Title: Improvements relating to fabrics
IPC: D02G3/36
Filed: 1947-03-03
Abstract: 636,682. Yarns ; spinning. UNITED MERCHANTS & MANUFACTURERS, Inc. March 3, 1947, No. 6033. Convention date, March 7, 1946. [Classes 120 (ii) and 120 (iii)] A composite yarn consists of a core made from at least one continuous filament of nylon, polyacrylonitrile or vinyl chloride and acetate copolymer, and a wrapper for the core, said wrapper being of staple fibres twisted about the core but not bonded thereto. The wrapper may comprise spun regenerated cellulose, spun cellulose acetate or a blend of these materials. Alternatively, the wrapper may comprise wool or a blend of wool and spun regenerated cellulose or spun cellulose acetate, or both. The composite yarn may be made by the method which includes twisting a wrapper of staple fibres fed from bobbins 11, 12 of rovings thereof, about a core of nylon or fed from a bobbin 20, the wrapping fibres being drafted at 17, 18 and twisted about the core 20 between the delivery rollers 19 and the ring spinning device 26. The yarn is made up into textile fabric and stabilized by heat while preventing permanent adhesion between the core and wrapper portions of the yarn composing it.
Patent GB-733012-A (GB)
Title: Improvements in or relating to television tuners for receiving uhf and vhf signals
IPC: H03J5/02
Filed: 1953-03-04
Abstract: 733,012. Radio receiving apparatus. STANDARD COIL PRODUCTS CO., Inc. March 4, 1953 [March 14, 1952], No. 6047/53. Drawings to Specification. Class 40 (5). The description is identical with that of Specification 733,005 but the claims differ. Specifications 703,946 and 733,003 also are referred to.
Patent GB-272446-A (GB)
Title: Circuit system for feeding the anodes and filaments of electron tubes, especially in connection with the alternating current circuit
IPC: H04B1/16
Filed: 1927-03-04
Abstract: 272,446. Ettenreich, R., and Schrack, E., (trading as Radiowerk E. Schrack). June 10, 1926, [Convention date]. Vacuum tubes.- The filament of a thermionic valve is heated entirely by the anode current. A supply of current to both ends of the filament is obtained by short-circuiting the supply conductors after preliminary ignition of the filament by a battery E through a condenser or a resistance R. The central portion of the filament is reduced in thickness to obtain as uniform a temperature as possible. Alternatively the filament is helical with the central windings nearer together than those at the ends. If preliminary ignition is obtained by induction, a single supply conductor is used and the filament is reduced in thickness at the end remote from the supply conductor.
Patent GB-1143919-A (GB)
Title: Improvements relating to circular knitting machines
IPC: D04B35/00
Filed: 1968-02-07
Abstract: 1,143,919. Knitting machines. SCHUBERT & SALZER MASCHINENFABRIK A.G. 7 Feb., 1968 [8 Feb., 1967], No. 6101/68. Heading D1C. The needles of a circular machine are lubricated in their tricks by the provision of an outer groove 11 at the back of the tricks which is connected by bores 12 to an inner groove 10 supplied with lubricant from a supply pipe 7. A lower groove on the outside of the needle cylinder for lubricating the needle jacks may be similarly supplied with lubricant from an inner groove fed from a pipe supply or a second groove 13 at the inside of the needle cylinder adjacent the groove 10 may have bores 14 permitting lubricant from the top supply to run down into the lower inner groove. Openings 61 in the take down tube permit lubricant to be supplied by hand.