baber/WOPTO huggingface dataset:
Patent GB-1430409-A (GB)
Title: Production of cermaic shells
IPC: B28B1/30
Filed: 1973-06-13
Abstract: 1430409 Ceramic shell moulds MONSANTO Ltd 2 May 1974 [13 June 1973] 28181/73 Heading B5A [Also in Division C3] A process for the production of a hollow ceramic article such as a crucible or a part of a shell mould, comprises applying to a pattern having a smooth surface of a fluorocarbon polymer and a shape devoid of re-entrant features a coating of a slurry of a finely divided refractory material in a liquid binding agent, applying a stucco of a coarse refractory material to the slurry coating, setting the binding agent, applying further slurry and stucco coatings to build up the shell to the desired thickness, and, after withdrawing the pattern, firing the shell. The binding agent is preferably an acid catalysed alkyl silicate in a water miscible alcohol, the primary coating containing zircon as the refractory material and the primary stucco is calcined kaolin clay. The pattern may be either composed entirely of the fluorocarbon polymer or may be a wood or metal pattern with a fluorocarbon coating. Suitable polymers are p.t.f.e., polychlorotrifluoroethylene, copolymers of tetrafluoro ethylene and hexafluoropropylene. The pattern may be part of a composite pattern for the production of a shell mould and in this case the remainder of the composite pattern will be composed of a conventional expendable material such as wax. Specification 1,309,915 is referred to.
Patent GB-1398074-A (GB)
Title: Machine for producing aerated food products
IPC: A47J43/12
Filed: 1971-06-16
Abstract: 1398074 Aerating liquids; mixing apparatus J MACMANUS 14 Sept 1972 [16 June 1971] 28275/71 Heading D1C In a modification of the apparatus of Specification 1250497 for making e.g. whipped cream the rotary vane pump 7 draws in liquid from an unpresurised, unrefrigerated container through the hose 15, and air through a filter 23 and a thin-walled tubular portion 33 which is surrounded by a chamber (32, Fig 1 not shown) which contains refrigerant. The tubular portion 33 is formed in a member 17 which terminates in a needle valve 20 which can be adjusted, to control the air flow rate, by rotating the member 17. The suction of the pump opens the valve 25, 27, and liquid and air are mixed in the pump and delivered through a non-return valve 10 to a detachable static homogendzer 28 which has a solenoid discharge valve (29). A controller (36) may incorporate a timing device so that when switched on the pump and solenoid valve operate to deliver a pre-determined portion. The liquid inlet may include a chort metallic tube (not depicted) passing through the refrigerant chamber (32).
Patent GB-1470737-A (GB)
Title: Value token testing apparatus
IPC: G07D7/00
Filed: 1975-07-04
Abstract: 1470737 Bank-note validation LGZ LANDIS & GYR ZUG AG 4 July 1975 [4 July 1974] 28293/75 Heading G1A Bank-notes or other "value tokens" are validated by a plurality of optical measurements using light in different narrow spectral regions, at a selected position on the test article, and comparison of these measurements with a similar plurality of measurements maintaining the same optical path or paths and using the same apparatus, on a reference zone. The reference zone may be the support plate for the test article or another selected position on the test article.  In the arrangement schematically illustrated in Fig.1, and in detail in Fig.2, three light emitting diodes 4, 5, 6 emitting e.g. red, yellow and green light, illuminate a small spot on support plate 3, over which the article 1 to be tested slides. The sources are arranged on three corners of a triangle with photodiode 7 at its centre. The sources are pulsed in sequence and with different amplitudes, see U 1 , U 2 , U 3  and A 1 , A 2 , A 3  in Fig. 3. and their supply pulses also fed to gates 19, 20, 21. The detector output is amplified at 13 and whenever it exceeds the integrated value of the sum of the amplitude values A 1 , A 2  and A 3 , as detected in comparator 15, the gates 19-21 are opened, to allow the pulse on the corresponding supply line to be counted in 16, 17 and 18. When measuring at a reference zone, before the article has been moved into the light path, the counters count up pulses to values A 1 /A 1 +A 2 +A 3  &c. Interruption of light barrier 27 by the article under test switches the apparatus over to measurement of a zone on the article and the direction of counting is reversed and the amplification of amplifier 13 reset at a preselected value, the same procedure, however, being otherwise carried out until the final counts represent the difference between reference and test values for the three colours. De-coding circuits 22-24 determine if the differences lie within predetermined limits and AND-gate 25 delivers a YES if they do. The use of different amplitudes for the light sources permits, with suitable setting of these amplitudes, the de-coding circuit tolerances to be at equal limits. Drift in amplifier 13 and due to background light variation is reduced by capacitor between 14 and 15 and pulsed operation reduces the effects of short term light variations or supply fluctuations. Transmission measurements may be utilized. The support 3 may be white or coated with a white layer. Intaglio printed matter may be investigated. An extra, invisible, radiation source may be used.
Patent GB-672238-A (GB)
Title: Improvements in clothes washing-machines
IPC: D06F19/00
Filed: 1948-11-01
Abstract: 672,238. Washing-machines. HOVDEN, H. Nov. 1, 1948 [Nov. 3, 1947], No. 28336/48. Class 138 (ii). In a washing machine of the vibratory type one or more plate screens 9 are arranged above the vibrators, the plate screens having inclined passages 11 for the gradual transport of cleansing liquid in a desired direction during successive vibratory strokes. The vibrator comprises a diaphragm 7 connected by an arm 6 to an oblique sleeve 5 mounted on the shaft 4 of a motor 3. During the vibrating motion liquid is forced between the plates 10 in the direction of the arrow x. A grating 14 is provided at one end of the space between the screen 9 and diaphragm 7. A round container 1 is shown, but a channel-shaped container may be used, the clothes being transported from one end of the channel to the other.
Patent GB-897929-A (GB)
Title: Shelving or the like constructions
IPC: A47B57/50
Filed: 1958-09-04
Abstract: 897,929. Structural bars. WODLI, E. Sept. 4, 1958 [Sept. 6, 1957; March 28, 1958], No. 28389/58. Class 20(2) [Also in Group XIV] Frame members 2 for shelving, racks &c. are provided with regularly-spaced key-hole shaped apertures 4 to permit the insertion of headed bolts or grooved dowels 11 whereby two main members 2 may be connected together and shelves mounted thereon, as also by saddles 17 each formed with a support member 18 and projections 17<SP>1</SP>, the enlarged part 5 of each aperture being disposed intermediate its ends. A doublesaddle arrangement is also described (Fig. 19, not shown). Locking plates 25 (Fig. 14, not shown) may be fitted to prevent the headed bolts from slacking-off and braces 14 (Fig. 13, not shown) may be attached at the corners of the framework to give added rigidity. Hook members 22 furnished with cross members 24 and projections 29 may also be provided for use in apertures 4, 5.
Patent GB-649507-A (GB)
Title: Improvements in or relating to treatment of materials with compression waves
IPC: B01J19/10
Filed: 1946-09-23
Abstract: Particles of a fluent material are accelerated to modify their physical and/or chemical characteristics by flowing the material through a chamber as a thin curtain and treating with compression waves.  The frequency of the waves are varied over a wide range. In examples, emulsions are formed from equal parts of water and olive oil, or water and mercury, the two components flowing side-by-side as a laminar curtain, but more than two liquids can be treated.  In a further example, an aqueous solution is sterilized (see Group VI). Specification 636,183 is referred to.ALSO:An aqueous solution containing the putrefactive bacillus proteus vulgaris and the nitrogen-fixing organism rhizobium radicicola is treated with compression waves to kill the proteus vulgaris without harming the rhizobium or modifying other characteristics of the solution, the solution being flowed through a chamber as a thin curtain.  The frequency of the waves can be varied.  Treatment is given in helium at atmospheric pressure, the temperature of the gas and the solution is 40 DEG C, and frequency is kept constant during treatment. Specification 636,183, [Group III], is referred to.
Patent GB-629609-A (GB)
Title: Improvements in or relating to a load supporting device for parachutes
IPC: B64D17/38
Filed: 1946-09-23
Abstract: 629,609. Hooks. FRIEDER, L. P. Sept. 23, 1946, No. 28411. Convention date, Nov. 23, 1945. [Class 89 (ii)] Relates to load-supporting devices for parachutes comprising one or more hooks for connecting the device to a parachute and having means for disconnection of the device when the parachute is relieved of the load by the grounding of the latter. In the first example, Figs. 2 and 4, before and after taking load, sister hooks 32 pivoted within a hollow piston 21 sliding without rotation in a shell 16 have tail parts 34 which, when the parachute assumes support of the load, provide shock-absorbing frictional resistance by being forced against the shell-walls by the load-ring action on the hooks 32 as the piston 21 is pulled up to a stop in the shell. A spring 25, which is extended as the piston moves up in the shell, is provided to draw down the piston to spread the hooks apart for disengagement of the device when the tail parts are forced apart on meeting the -top of shell 16. A spring 45 is provided to assist in throwing the hooks wide open. Projections 50 are provided on the load ring to position it in the hooks. In a modification, .Figs. 10 and 11 (not shown), two hooks pointing in the same direction are separated by a third hook pointing in the opposite direction and mounted between them. In another form, shown in Fig. 15 in the load-bearing condition, a single hook 55 is employed, which is disengaged by spring 72 to open the mouth of opening 59 in the top of piston 58 and allow loadring 60 to escape when the load is grounded.
Patent GB-236447-A (GB)
Title: Improvements in and relating to means or appliances for creasing or folding paper or the like applicable for wrapping purposes
IPC: B65H45/12
Filed: 1924-02-20
Abstract: 236,447. Boots Pure Drug Co., Ltd., and Barton, F. H. Feb. 20, 1924. Creasing and scoring.-Relates to apparatus for creasing or folding paper, especially applicable to the creasing of paper for forming packets of powders and the like. Paper 11 is fed intermittently by rollers 12 between members 2, 4 and vertically reciprocating plates 3, 5. shown in Fig. 1, in the lower position. As the members 3, 5 rise, the knife edge 9 of a pivoted block 10 enters a recess 8 in the plat'e 5 and creases the paper transversely to the feed. When the members 3, 5 fall to their lowest position, knives 6, 7 sever the paper into wrappers. The cam 16, which controls the movement of the plates 3, 5. is formed with a depression 23 which causes the cutting stroke, and two studs 24 which cause the creasing operations between each cutting stroke.
Patent GB-1191332-A (GB)
Title: Improvements relating to Fuel Cell Assemblies
IPC: H01M8/00
Filed: 1967-06-20
Abstract: 1,191,332. Fuel cells. UNITED AIRCRAFT CORP. 20 June, 1967 [13 July, 1966]. No. 28498/67. Heading H1B. In a fuel cell with porous electrodes 4, 6 and a porous matrix 2 containing an electrolyte there is provided a peripheral chamber 28 communicating with the electrolyte chamber of the cell via a passagesay 30 and containing a ring of porous material to receive electrolyte via the passage 30 on electrolyte expansion, and a gas space 38 by which pressure can be applied to the porous ring. As shown, the ring is in two parts, the inner part 32 being of the same porosity as the electrolyte matrix 2 and the outer being of coarser porosity. The gas in space 38 is at a pressure near that of the fuel and oxidant in chambers 11, 12 so that excess electrolyte expelled from matrix 2 through annular passage 30 is absorbed in ring 36 without any substantial pressure variation in the cell as it heats up to its operating temperature.
Patent GB-233377-A (GB)
Title: Improved manufacture of vaccine from tubercle bacilli
IPC: A61K39/04
Filed: 1923-11-14
Abstract: A nucleo-proteid is obtained from tubercle bacilli by preliminary treatment with hydrochloric acid to remove nucleic acid and render permeable the waxy coating of the bacilli, by extracting the separated bacilli with dilute alkali, and by precipitating the albuminous substance so extracted by adding acetic acid.  The substance obtained may be redissolved in alkali, reprecipitated with acetic acid, and dried with alcohol and ether. Specification 161,341, [Class 81 (i), Disinfecting &c.], is referred to.
Patent GB-1103440-A (GB)
Title: Press molding apparatus
IPC: B29C35/00
Filed: 1965-07-07
Abstract: 1,103,440. Moulding presses. DACO RUBBER Inc. 7 July, 1965 [8 July, 1964], No. 28799/65. Heading B5F. In a moulding press provided with heated platens 10, 11, e.g. for moulding rubber electrical plugs, the lower platen 11 is flexible and closing forces are applied nearer to the outer sides than to the centre thereof from two hydraulic pistons 14, 15 which are situated closer to the outer sides than the centres of the base members 12, 13 and platen 11 so that bowing 11<SP>1</SP>, due to thermal expansion and which would arise from evenly applied closing forces is eliminated; the force applied from pistons 14, 15 also being maintained constant by a valve 22 (Fig. 2, not shown) in the fluid supply line 21 from a pump 24, whereby excess fluid pressure in supply line 21 acts on a valve piston (41) in a piston chamber (43), in opposition to a manually adjustable spring (42), to open a needle valve (40) to bleed excess pressure fluid back to a reservoir (25) so that the rate of closing is varied.
Patent GB-619899-A (GB)
Title: Improvements in or relating to dry-shaving apparatus
IPC: B26B19/38
Filed: 1946-09-26
Abstract: 619,899. Dry shavers. KOBLER, W., and KOBLER, V., (trading as KOBLER & CO.). Sept. 26, 1946, No. 28818. Convention date, Nov. 6, 1945. [Class 131] Closure flaps adapted to be opened for removal of the severed hair as described in Specification 576,950 are provided on a dry shaver having at least two cutting heads, and the flaps 5 are adapted to be operated separately or simultaneously by the fingers of one hand. Each cutter head may be removed by pressing the flaps to the position shown in dotted lines by the fingers of the other hand, pressure by the stirrup 21, releasing the latch 19 from grooves 20 in the studs 16.
Patent GB-829838-A (GB)
Title: Improved process for the manufacture of 2:2-dipyridyl
Inventor: GARDNER CYRIL
IPC: C07D213/22
Filed: 1957-09-13
Abstract: 2.21-Dipyridyl is manufactured by a process comprising reacting 2-bromo-, 2-chloro- or 2-iodopyridine with finely divided iron, cobalt or nickel.  Preferably, the Raney form of the metal is used and the process is carried out at a temperature in the range 100-400 DEG  C. and at elevated pressure.  The 2.21-dipyridyl may be separated from the reaction mixture by treating it with excess alkali followed by steam distillation; the product is isolated from the aqueous distillate by neutralizing with mineral acid, evaporating and treating with caustic alkali and extracting the resulting mixture with ether, followed by distillation of the ethereal solution.
Patent GB-635639-A (GB)
Title: Improvements in roadways, pavements, floor coverings, ships' decks and the like
IPC: D06N3/10
Filed: 1947-10-29
Abstract: 635,639. Covering floors and walls ; roads and ways. NORTH BRITISH RUBBER CO., Ltd., and WILKIE, D. H. Oct. 29, 1947, No. 28900. [Class 20 (iv) and 107] A method of covering roadways, pavements, floors, walls, ships' decks, &c. comprises applying a priming coating of an aqueous dispersion of rubber in the form of latex, or an artificially prepared dispersion of rubber or reclaim or a synthetic rubber - like material or an aqueous dispersion of a synthetic resin, pitch, tar or bitumen, applying a cellular or " honeycomb " sheet of material thereto so that the base edges of the cell walls are embedded in the priming coating, filling the cells with surfacing material similar to the priming material and hardening or setting the same or allowing the same to become hardened or set. In an example, the floor, &c. covering is formed by first spreading a layer 2 of a mixture of rubber latex compound and a dehydrating powder thereon to a depth of 1/16 inch and then placing “ inch thick sheets 1 of " honeycomb " material on the layer and pressing the sheets partly into the layer. After this has set, a top composition 4 of latex, cement, grit and colouring matter is poured or trowelled into the cells of the honeycomb. After setting, the covering may be buffed to reveal the honeycomb material and thus provide a patterned surface for the floor &c.
Patent GB-874544-A (GB)
Title: New monoazo-dyestuffs containing a halogenated triazine nucleus and process for their manufacture
IPC: C09B62/08
Filed: 1957-09-13
Abstract: The invention comprises dyes of formula:-  <FORM:0874544/IV(c)/1> where A is the residue of an at most secondary aliphatic or aromatic amine containing a sulphonic or carboxylic acid substituent, R is a benzene residue with a sulphonic or carboxylic acid group and carrying the NH bridge in para-, or preferably meta-, position to the azo link and R1 is the residue of a coupling component which contains a six-membered heterocyclic ring and is bound to the azo link in a position vicinal to a keto group.  The dyes are made by reacting a 2, 4, 6-trihalo- 1, 3, 5-triazine with an aminoazo dye of formula H2N-R-N=N-R1 and an amine corresponding to A any order of succession being adopted.  The dyes may also be made from appropriate diazo and heterocyclic coupling components. Preferably A represents an arylamino group containing a sulphonic or carboxylic acid group, especially an aniline group containing a CH2 CH2 SO3H group in the nucleus, and R1\t is a barbituric acid residue.  Cyanuric chloride is the preferred halotriazine.  Representative of indicated values corresponding to R are 1, 4-diaminobenzene-2-carboxylic acid, 1, 3-diaminobenzene- 4-sulphonic acid and 2-methoxy- 1, 4-diamino-benzene-5-sulphonic acid.  Indicated as R1 components are oxyquinolines, e.g. 8- oxy-and 2, 4-dioxy-quinoline and barbituric acid.  Representative of components corresponding to A are glycine, phenyltriazine sulphonic acids, aniline- 2, 5- di- and 2-, 3- and 4- mono-sulphonic acids, naphthylamine mono- and disulphonic acids, aminodipehnyl sulphonic acids and N-methylaminoethane sulphonic acid. The dyes are particularly of use in colouring cellulosic materials, especially when used in conjunction with an alkaline treatment. Examples are provided of the preparation of the dyes and their use in colouring cellulosic materials in greenish- and reddish-yellow shades.  Specifications 797,946 and 863,155 are referred to.
Patent GB-475304-A (GB)
Title: Improvements in locks
IPC: E05B55/04
Filed: 1936-10-24
Abstract: 475,304. Locks and latches. ASH, J., ROGERS, A., and ROGERS, A. L. Oct. 24, 1936, No. 28938. [Class 44] A lock having a latch bolt which may be retracted by finger operated means passing through the door and which may be locked or retracted by a key is constructed with the key and finger operating means projecting from the casing in close proximity sc as to be able to be housed in a tubular casing or pass througl a single hole in the door. The latch bolt 1 may be withdrawn by the push button 5 acting through the levers 6 and 4, and also by a key acting on the nib 19 and lever 11. When the key is turned in the reverse direction to that required for withdrawing the latch it co-operates with the notch 14 to slide the bolt 12 to a position where it blocks the tail of latch. The member 15 coacting with pin 16 holds the bolt 12 shot. This operation allows the nib 19 on member 11 to be withdrawn from the path of the key. To retract the latch from this position the key has to be turned twice in a clockwise direction, once to lower the bolt 12, and bring nib 19 into the path of the key and then again to retract the latch. The plunger 5 and the key are adapted to be housed in a cylindrical casing 23 with the sheet metal member 25 forming a guide trough 26 for the plunger and a key guide 27. A modification, Fig. 7, shows the latch bolt 30, which may be retracted by finger operated means, locked in a shot position by the nib 33 of a slide bolt 32 which is held against the side of a slot 31 in lever 29 by a guard lever 35. Rotation of the key in an anticlockwise direction causes the nib 33 to move to the other side of projection 37 and release the bolt; a further rotation of the key causes the nib 33 to co-operate with the side of slot 31 and withdraw the latch. Specification 446,110 is referred to.
Patent GB-1455615-A (GB)
Title: Making electrical distribution boxes
IPC: H02G3/08
Filed: 1974-06-29
Abstract: 1455615 Making metal boxes DORMAN SMITH BRITMAC Ltd 1 May 1975 [29 June 1974] 28975/74 Heading B3A [Also in Division B8P] An electrical distribution box is made by bending a rectangular blank 10 to form a base 11 and walls 12, 13, bending rectangular blanks 14, 15 to form a tab 18 at each end, one or both blanks being apertured at 16, 17 for the connection of trunking to the box and securing the blanks 14, 15 to the walls 12, 13 by means of the tabs, preferably by spot welding.
Patent GB-633980-A (GB)
Title: A process for obtaining an exceedingly fine distribution of particles
IPC: B05B7/24
Filed: 1947-10-30
Abstract: 633,980. Spray-producers. ADAN, J. L. P. DE Z. Oct. 30, 1947, No. 29046. Convention date, July 31, 1946. [Class 69 (iii)] Liquid f is finely atomized by passing it through a series of annular gas jets d in succession. Air or gas is supplied under pressure from a pipe g to a control valve b and thence to a series of pressure-reducing valves c and the annular jets d. The pressure at the annular jets may be varied in any desired manner by the pressure-reducing valves. The interior surface of the nozzle mouth may be provided with helical grooves in order to impart a rotary movement to the spray. A screen of wire or textile mesh e may be provided to filter the larger droplets, and heaters may be associated with the nozzle to prevent freezing due to the expansion at the nozzles and evaporation of liquid.