baber/WOPTO huggingface dataset:
Patent GB-518779-A (GB)
Title: Improvements in or relating to the application of coatings to workpieces
IPC: A43D25/18
Filed: 1938-09-02
Abstract: 518,779. Coating workpieces. BRITISH UNITED SHOE MACHINERY CO., Ltd. Sept. 2, 1938, No. 25676. Convention date, Sept. 9, 1937. [Class 95] In a machine having a nozzle comprising a plurality of delivery members each having a passage through which coating material may be extruded on to a surface of a workpiece, each delivery member has a work-contacting part in which is said passage and'each passage is individually supplied with coating material through a tube having sufficient flexibility to permit displacement of the corresponding delivery member without interruption of supply of coating mixture thereto. Referring to the drawings in which is shown an apparatus very similar to that described in Specification 467,666, operation of a treadle operates rod 34 which first moves feed roll carrier 56 to bring the feed roll 50 into the position shown in Fig. 3 and then opens valve 30 so that cement is delivered by pump 24 from tank 20 via pipe 26 and nozzle 28 to the workpiece. The nozzle 28 is of metal and comprises a plurality of pivoted, plate-like delivery members 82, 84, and 86, each having a narrow passage 124 terminating in opening 88 in grove 90 at foot 83 of the delivery member. The outer edges 92 and 94 of the outside members 82 and 86 are longer than the corresponding inner edges 96, 98 which are notched to spread the cement. The delivery members are pivotally mounted between flanges 114 and held there by removable pin 116. Cement is delivered to openings 88 of the pivoted members through a plurality of flexible metallic capillary tubes 722, lower end portions of which slidably engage in the passages 124 in the feet 83. Small amounts of solvent are supplied to the upper side of the nozzle to prevent the individual delivery members sticking together.
Patent GB-1177382-A (GB)
Title: Method of Making Ohmic Contact to a Semiconductor Body
IPC: H01L27/092
Filed: 1967-01-19
Abstract: 1,177,382. Semi-conductor devices. RCA CORPORATION. 19 Jan., 1967 [24 Feb., 1966], No. 25720/69. Divided out of 1,177,381. Heading H1K. [Also in Division C7] An ohmic contact to a semi-conductor body is produced by subjecting the surface of the body to an ionic discharge in an inert gas, removing the gas and then depositing a metal on the treated surface under high vacuum conditions. The semi-conductor may be silicon, the metal aluminium and the gas argon. The process may be used to provide the source and drain electrodes in an insulated gate field effect transistor, the ionic discharge also assisting in the provision of the inversion layer in the source-drain channel space. Other subject matter appears also in Specification 1,177,381 from which the present specification was divided.
Patent GB-244056-A (GB)
Title: Improvements relating to electrical apparatus which is immersed in an insulating liquid
IPC: H01F27/14
Filed: 1925-10-16
Abstract: 244,056. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Hill, L. H.). Dec. 4, 1924, [Convention date]. Pressure - reducing valves. - In oil-immersed electrical transformers having a breathing regulator 7 connected to the container 1 through parallel paths 18, 19, one of the paths has a coupling or adapter 22 in its length which acts as a reducing - valve. The adapter consists of an outer screwed coupling - member and an inner hollowthreaded plug 25, a screw 27 closing the plug; the only path for gases between the two sides of the, adapter is past the threads of theplug and screw.
Patent GB-138836-A (GB)
Title: Improvements in means for consuming smoke in furnaces
IPC: F23L7/00
Filed: 1919-10-23
Abstract: 138,836. Whiteley, H. Oct. 23, 1919. Air, supplying; smoke, consuming.-In means for supplying air to consume smoke in furnaces of the kind described in Specification 5270/13, the rear end d of the air-supply pipe b is provided with nozzles f to deliver jets of air at an incline into the furnace flue immediately behind the bridge e. The jets of air may be delivered on to a bed of refractory heat-retaining material supported on bars g.
Patent GB-148711-A (GB)
Title: Improvements relating to vehicle brake blocks
IPC: F16D65/06
Filed: 1919-10-23
Abstract: 148,711. Dickson & Mann, and Cunningham, J. Oct. 23, 1919. Blocks.-To ensure that a vehicle brake block of the type suspended at one end by a link from the frame of the vehicle shall be totallv withdrawn when not in action, without leaving an end of the block in contact with the wheel, the point of suspension 2 of the block is connected to a point on the push-rod 7 by a link 8. The connexion between the link 8 and rod 7 is made by a bolt 10 passing through the rod and through a slot 9 in the link, so as to allow a certain freedom of motion, which is restrained by friction, a washer 13 being pressed against the link by a spring which also bears on a nut 14 on the bolt 10.
Patent GB-975986-A (GB)
Title: Thermionic cathode
Inventor: RICHARDS GORDON STANLEY
IPC: H01J9/04
Filed: 1962-07-06
Abstract: 975,986. Indirectly-heated cathodes. STANDARD TELEPHONES & CABLES Ltd. July 5, 1963 [July 6, 1962], No. 26061/62. Heading HiD.  An indirectly-heated cathode comprises a layer of electron-emittirig oxide 2 compacted on to a metal base 1a and a coating of metal powder 4 applied to the edges of the oxide coating and in contact with the metal base to prevent discharges from the edges which might be rough due to the compacting step. The cathode base 1a may be of pure Pt or Ni, or of Ni containing Mg, W and/or A1. The layer 2 may be applied as a mixture of alkaline earth carbonates in an organic binder and is compacted until its density is at least doubled, e.g. until its specific gravity is increased from unity to three. Nickel powder, suspended in a volatile organic fluid, is sprayed on to the edges of coating 2 either before or after the compacting step. The cathode may be used in cathode-ray tubes or velocity-modulated tubes, or the emissive layer may be coated on one side of a rectangular sleeve for the production of a ribbon-shaped electron beam, Fig. 2 (not shown). The organic binders are driven off, and the carbonates converted to oxides, by heating, after assembly of the cathode in a discharge tube.
Patent GB-683608-A (GB)
Title: Improvements relating to the soldering of metals to aluminium
Inventor: FREEBREY ARTHUR GEORGE
IPC: B23K35/00
Filed: 1948-10-07
Abstract: 683,608. Making electric components, condensers, &c. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Oct. 7, 1949 [Oct. 7, 1948], No. 26108/48. Classes 83 (ii) and 83 (iv). Soldering.-A method of soldering a metal body to an aluminium, or aluminium alloy, surface comprises providing a coating of copper on said surface, tinning the copper locally where soldering is to be effected, removing the copper not covered by the tinning and soldering the metal body to the tinning material. The process is stated to be useful for attaching tags to aluminium casings of electric components or to foil condenser-electrodes. The excess copper surrounding the tinned area is removed in a nitric acid or chromic and sulphuric acid bath. ' In another form the body may be directly soldered to the copper plating, thereby simultaneously providing the tinning, and finally the excess plating is stripped off. As an alternative the copper is deposited only on the areas to be tinned, by coating the aluminium on the copper-free areas with wax or other protection before plating. The Provisional Specification states that the copper may be silver-plated prior to tinning, the excess copper and silver being removed.
Patent GB-1071410-A (GB)
Title: Probe for tumour diagnosis
IPC: G01T1/17
Filed: 1964-06-24
Abstract: 1,071,410. Diagnosing tumours. GAMMA OPTIKAI MUVEK. June 24, 1964 [June 24, 1963], No. 26160/64. Heading ASK. [Also in Division G1] A probe for tumour diagnosis, which ensures that reproducible pressures on the detecting surface of nuclear radiation detector are obtained by the use of audible signals, comprises a detector 1 for detecting radioactive isotopes, slidable in a spring loaded device having hand group 4. The detector has replaceable diaphragms 2 and removable protective network 3. Visual pressure indicating means 8 may be provided. In use the probe is placed on the surface to be examined, pressure is applied to grip 4 and tube 1 is displaced relatively to the spring loaded device against spring 6. When a predetermined pressure on the detecting surface is reached follower 9 is actuated by cam on support 7 on tube 1, to operate a switch to close a pair of contacts (10) (Fig. 2 not shown) in an electric circuit which results in an audible signal from loudspeaker (17). If the pressure on the detecting surface becomes greater than desired, follower 9 operates a switch to close a pair of contacts (11) which results in an audible signal of different frequency from loudspeaker (17) indicating that the pressure should be reduced.
Patent GB-600982-A (GB)
Title: An improved method of and apparatus for bending and setting strip, bar, rod and sheet materials
IPC: B21D11/06
Filed: 1945-10-08
Abstract: 600,982. Angular bending. PORTER, J. Oct. 8, 1945, No. 26179. [Class 83 (iv)] Strip &c. material is bent between two flexible bands 17 secured to formers 19, 19a. The formers are mounted by holes 16, 16a on shafts rotated by hand wheels and pulled apart to tension the bands by weights. In use, the formers are rotated to allow the strip to be bent to be inserted between the bands which are then rotated by the hand wheels to bend the strip to the shape of the former. In a modification, one former only is used.
Patent GB-1462051-A (GB)
Title: Ceramic materials
IPC: C04B35/597
Filed: 1973-06-01
Abstract: 1462051 Ceramic materials - sintered silicon aluminium oxynitrides LUCAS INDUSTRIES Ltd 19 June 1974 [1 June 1973 18 July 1973 10 Nov 1973] 26297/73 34140/73 and 52310/73 Headings C7A and C7D A ceramic material containing a single phase silicon aluminium metal oxynitride having a crystal structure based on that of # Si 3 N 4  but with increased cell dimensions is produced by mixing silicon nitride powder with a metal aluminium spivel and sintering, normally under pressure. The metal aluminium spivel contains L 1 , Mg, Mn, Co, Zn, Cu, Ni or Fe, and the Si 3 N 4  powder contains at least 95% of the α phase material. Varying the amount of spivel in the mixture varies the cell dimensions.
Patent GB-664330-A (GB)
Title: Improvements in antenna systems
IPC: H01Q21/20
Filed: 1949-10-13
Abstract: 664,330. Aerials. RADIO CORPORATION OF AMERICA. Oct. 13, 1949 [Oct. 14, 1948], No. 26319/49. Class 40 (vii). An antenna comprises a tubular conductor having longitudinal slots, such as 31-34, Fig. 2, disposed about its periphery, a pair of diametrically opposite slots being so energized as to cause the radio frequency currents from each slot to flow in opposite directions around the periphery. If an east-west pair of slots is energized from a first source no potentials are set up across the slots of the north-south pair and these may then be energized from a second source. The horizontal pattern due to one pair of diametrically opposite slots above is given accurately by cos # when the diameter of the tube lies between <SP>1</SP>/ 10  and <SP>1</SP>/ 4  of the wavelength. If the east-west pair of slots are energized from the same source in phase quadrature with the north-south pair a rotating field is established providing the equivalent omnidirectional radiation of that produced by a turnstile antenna. An embodiment, Figs. 2 and 8, suitable for the transmission of television signals comprises a vertical stack of four elements 21-24, the slots being 0.85# in length and spaced apart # from centre to centre. Fig. 8 illustrates the arrangement of feeders in which the north-south pair of one element 24, are shown energized by branched lines 57 and the east-west pair by branched line 37. An additional quarter wavelength section 51 is included in feeder 37 to produce the phase quadrature energization. Feeders 53, 54 connect respectively with the aural and visual transmitters and supply signals through a diplexer 52 such as that disclosed in Specification 636,081. The remaining elements in the stack 21, 22, 23 are connected by a network lines, Figs. 5 and 6 (not shown), so that corresponding slots in each element are energized in the same phase. The antenna is also shown connected to radiate simultaneously a F.M. signal applied in the same phase to all the slots by line network 80-86. The slots are excited as full-wave elements for the television signal and as one and one-half wave elements for the F.M. signal. Lines 38, 39, 58, 59 conveying the television signals connect with the centre of the slots, and lines 83-86 conveying the F.M. signal are connected one-half the distance between the centres and ends of the slots. Interaction is prevented by making the feeder assembly for one signal a quarter wavelength for the other signal and vice versa. In a second similar embodiment, Fig. 7 (not shown), for use as an. omni-directional range beacon, producing a rotating field and a stationary reference field, the suppressed-carrier sideband signals are applied through feeders. 37 and 57, and the carrier signal is applied through feeder 80. In this case both sets of feeders connect with centre of the slots and the length of each final branch line is made an odd multiple of #/4 to obtain desirable impedance matching. For this embodiment a single element may be employed with a diameter of 0.3# and slot length between 0.5 and 1#.
Patent GB-890289-A (GB)
Title: Inter-digital magnetron
Inventor: KING HEWSON NICHOLAS GRAHAM
IPC: H01J25/56
Filed: 1959-07-31
Abstract: 890,289. Magnetrons. MULLARD Ltd. July 31, 1959, No. 26356/59. Class. 39(1) [Also in Group XL(b)] A fluid cooled interdigital magnetron comprises a twin-conductor lecher line formed by two hollow loops 11, 12 which lie in parallel planes and to which the interdigital elements 1 to 8 are alternately connected. Cooling water is supplied to loop 12 at 14 and withdrawn from loop 11 at 15, the two loops being connected and short circuited by a loop 13 which is brazed to the water inlet and outlet pipes. In a modification each loop is separately supplied with cooling water and a short circuiting bridging member replaces the loop 13. Specification 879,394 is referred to.
Patent GB-1465450-A (GB)
Title: Method and apparatus for the production of rolled food products
IPC: A23L35/00
Filed: 1975-06-23
Abstract: 1465450 Rolled food products DANSK STYRETEKNIK AS 23 June 1975 [24 June 1974] 26583/75 Heading A2B A rolled food product (e.g. a Chinese Spring Roll) comprising a filling and an outer edible wrapping material is made by rolling and folding the wrapper around the filling, the folding being effected by fluid pressure on the wrapper. Suitably the filler 17 and wrapper 16 are placed on conveyer 1. A jet of air from orifice 18 folds the front of the wrapper over, and is further rolled by means of flap 11 as the filling passes beneath. Guide arms 12 define and crease the end of the filling and arms 13 define the line of fold as air jets 19 fold the opposite edges over the filling, the product being finally rolled by means of flap 15 to finish. Any type of fluid through the orifices, including a fluidised particulate material may be utilised and additionally folding may be assisted (or effected) by formation of a vacuum above the wrapper rather than an increased pressure below it.
Patent GB-1090665-A (GB)
Title: Purification of amino tri(lower alkylidene phosphonic) acids
IPC: C07F9/02
Filed: 1965-06-23
Abstract: An amino tri (lower alkylidene phosphonic acid of the formula <FORM:1090665/C2/1> wherein X and Y are the same or different and each is hydrogen or a C1- 4 alkyl group, containing halide impurity, is purified by subjecting the acid, in an aqueous medium, to treatment with a gas which is inert to the acid under the conditions used and is capable of entraining hydrogen halide, the treatment being effected at a temperature and pressure at which the gas is effective to entrain hydrogen halide but at which the acid is not deleteriously affected. At atmospheric pressure the process may be effected within the temperature range 110-150 DEG  C. Specified inert gases are steam, air, nitrogen, carbon dioxide, helium, neon, argon, and mixtures of gases, such as flue gas.  The process may be carried out either by batch-stripping, for example by contacting a batch source of the acid by bubbling the gas through, or counter-current stripping, for example by contacting a flowing source of the acid medium with a counter-current flow of the stripping gas. The phosphoric acids to be purified by this method are prepared either by reacting ammonia with a carbonyl compound and orthophosphorous acid in the presence of a hydrogen halide, which inhibits the oxidation of the latter, or by reacting ammonia with a carbonyl compound and a dialkyl phosphite to give an ester which is then hydrolysed by a strong mineral acid such as hydrochloric acid.
Patent GB-1425326-A (GB)
Title: Hot and cold water mixing tap
IPC: G05D23/13
Filed: 1973-06-05
Abstract: 1425326 Valves PONT-A-MOUSSON SA 5 June 1973 [28 June 1972] 26642/73 Heading F2V A hot and cold water mixing tap has a pair of telescoped cylindrical slides 15, 16, Fig. 1, movable relatively to one another and to housing 1 to control the spacing between surfaces 39, 40 for controlling the passage of cold water from inlet 6 to mixing space 37 communicating with outlet 7, and the spacing between surfaces 2, 42 for controlling the passage of hot water from inlet 5 to the space 37. The slide 15 is adjusted via coarse thread 8 by manually rotating an axially-fixed nut 11 to alter the flow rate of the mixture, whereas the slide 16 is adjusted in response to the combined action of a temperature responsive capsule 17 and opposed springs 18, 19 of unequal strength. The desired temperature of the mixture is set by manually rotating an axially-fixed knob 12 to axially adjust a screw 13 within a nut 14 and thereby alter the position of an abutment 20 for the plunger 45 of the capsule 17. In order to reduce unwanted temporary variation in the mixture temperature from its set value following relatively large adjustment of the flow setting by the nut 11, the latter also adjusts slightly the position of the abutment 20 via a fine thread 9. In an alternative embodiment, Fig. 8 (not shown), the plunger 45 abuts a rigid integral extension of the screw 13.
Patent GB-735766-A (GB)
Title: Improvements in or relating to burglar alarm and like warning systems
Inventor: LEVY JOSEPH PEPPO
IPC: G08B13/22
Filed: 1952-10-23
Abstract: 735,766. Pressure gauges. LEVY, J. P., and MEEKS, L. E. Dec. 21, 1953 [Oct. 23, 1952], No. 26681/52. Class 106 (2). [Also in Groups XXXVII and XXXVIII] A pressure-sensitive device for use in a burglar alarm comprises two compartments 20, 21 separated by a diaphragm 22, the compartment 20 having an orifice 23. The device is placed within the chamber, e.g. a room, to be protected, the pressure within the chamber being maintained at a value different from that existing outside the chamber by means such as a blower or fan, and a pipe is taken from the nipple 44 communicating with the compartment 21 to the outside atmosphere; alternatively the device is placed outside the chamber and a pipe led into the chamber from the nipple 44. The device is so adjusted, in particular by adjustment of the position of tension springs 40, that, when the desired pressure differential is maintained, the contact arm 35 is held in a central position with respect to contacts 38, 39. When a change in the pressure differential occurs, for example due to the opening of a door in the chamber or a person making an entrance through an alreadyexisting aperture, the arm 35 makes contact with one of the contacts 38, 39 thus short-circuiting the resistor 51 forming one arm of a normally balanced Wheatstone bridge. The resistor 51 is connected to the remaining arms of the Wheatstone bridge, which are associated with the alarm and may be located at a remote point, through a pair of leads 18. Upon the bridge becoming unbalanced, the relay 79 is energized, closing contacts 82, thus energizing the self-holding relay 83 having contacts 87, 88 and 90 and causing the alarm, shown as a bell 89, to be operated. The Wheatstone bridge and relay circuits are normally supplied from the A.C. mains through a bridge-rectifier 60 ; in the event of failure of the mains supply, relay 73 is de-energized and battery 72 is switched into the circuit. Opening of switch 69 releases the selfholding relay 83 and allows the circuit to be re-set. In order to prevent the system being rendered inoperative by blocking of the orifice 23, a small aperture 22a is made in the diaphragm 22, whereby the pressures in the two compartments become equalized should the orifice 23 be closed.
Patent GB-1309474-A (GB)
Title: Method of flocculating solid particles using acrylic flocculating agents
IPC: C08F20/62
Filed: 1970-06-02
Abstract: 1309474 Acrylic terpolymers PROGIL 2 June 1970 [12 June 1969] 26682/70 Heading C3P [Also in Division C1] Water-soluble terpolymers having a molecular weight greater than 500,000, which are used for flocculating aqueous suspensions (see Division C1), are derived from 35-97% by weight of acrylamide, 2-55% by weight of partially neutralized acrylic acid (based on the acrylic acid before neutralization) and 1-20% by weight of acrylonitrile. The terpolymer may be in the form of a partial alkali metal or alkaline earth metal salt, the degree of neutralization preferably being from 30-80%. Neutralization is preferably effected before polymerization. The terpolymers are suitably prepared by polymerizing the corresponding monomers in a water-in-oil (hydrocarbon) emulsion, using for example sorbitan stearate as emulsifier, in the presence of a redox catalyst, e.g. potassium persulphate/sodium bisulphite. Alternatively polymerisation can be effected in water/acetone mixture.
Patent GB-242273-A (GB)
Title: Thermally acting excess current time release for switch apparatus
IPC: H01H71/44
Filed: 1925-10-26
Abstract: 242,273. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts Ges.). Oct. 29, 1924, [Convention date]. Electrically tripped and released switches. -In thermally-sensitive excess current switches, an electromagnet h carrying the current has an armature g normally locked in its unattracted position by a rod t attached to a three-armed lever e, c to one end of which is attached a wire a adapted to be heated by the current. Continuing excess current causes the wire a to Lengthen, allowing the lever system to turn counterclockwise under the influence of a spring d so that the armature is unlocked and is attracted by the pole n of the magnet, and, in its movement, trips the switchoperating arm or shaft i by means of a catch f. On violent overload the rod t is pushed up against the spring k, which is normally strong enough to maintain the rod in position.
Patent GB-1158886-A (GB)
Title: Improvements relating to Lamp Bulbs
Inventor: FENN HENRY ALFRED
IPC: H01K1/38
Filed: 1967-06-09
Abstract: 1,158,886. Electric incandescent lamps. BRITISH LIGHTING INDUSTRIES Ltd. 21 May, 1968 [9 June, 1967], No. 26821/67. Heading H1F. In a twin filament lamp the filament legs 12 are moulded into a bridge 13 and the portions 14 of the legs which project on the further side of the bridge are embedded in the pinch seal 21 thereby avoiding the need for separate lead-in wires. Preferably the lamp contains an inert gas and halogen filling and the envelope 20 and bridge 13 are made of quartz. The portions 14 are spot welded to molybdenum foils 15, 16 which are connected by pins 17 to the casing and to a pair of insulated contacts, respectively, of the lamp cap. More than two filaments may be provided.