baber/WOPTO huggingface dataset:
Patent GB-1211498-A (GB)
Title: Semiconductor switching arrangement
Inventor: PETERS JACK ROWLAND
IPC: G09G3/32
Filed: 1969-03-05
Abstract: 1,211,498. Electroluminescence. STANDARD TELEPHONES & CABLES Ltd. 5 March, 1969, No. 11779/69, Heading C4S. [Also in Divisions H1 and H3] A light-emitting PN junction is connected in series with or forms one of the end junctions of a four-layer switching diode. A bias suitable for light emission is applied to the combination but is blocked by the four-layer diode which may be triggered into conduction by a voltage pulse to initiate light emission. The arrangement may be switched off by removing the bias or by applying a pulse of opposite polarity. Each of an array of GaAs, GaP, or GaAsP light-emitting diodes encapsulated in a lens may be connected in series with a silicon four-layer diode, Figs. 2 and 3 (not shown). Composite integrated circuit arrays with an intrinsic memory may also be constructed, in a first embodiment of which; Figs. 4 and 5 (not shown), an N-type silicon substrate (40) is processed to form P, N and P type layers (41, 42, 43) on one face, a metal layer (44) is formed in ohmic contact with the upper P type layer (43), and layers (45, 47) of N and P type GaAsP are formed on the metal layer. A grid of slots (48) is formed by sawing, etching or air abrading through the layers on the substrate to form the array, an ohmic contact (49) is applied to the lower face of the substrate and individual electrodes (50) having apertures for light emission are provided on the top of each device of the array. The grooves may be filled with insulating material such as epoxy resin and the upper electrodes provided with connections in the form of evaporated strips or by connecting wires. Limiting resistances (52) may be resistive tracks on a printed circuit board. In modification, Figs., 7 and 8 (not shown), a resistive layer (72) is provided between the Si substrate (73) and the lower electrode (71) which is mounted on an insulating member (70). The grid of slots is deeper in this case, the slots parallel to one direction extending through the whole thickness of the device including the lower electrode while the slots normal to that direction extend through the semi-conductor layers and the resistive layer but not through the lower electrode. The wafer is thus divided into an array of individual devices each row being mounted on a common lower electrode strip. The electrodes applied to the upper surface are in the form of strips normal to the lower strips to form co-ordinate addressing connections. Resistive layers (72) and (92) (Fig. 9, not shown) function as current limiting resistances and also as capacitors for the short turn on or turn off forward or reverse voltage pulse so that the pulses are not blocked. The four-layer diodes of either arrangement may be of GaAs, GaP or GaAsP in which case the upper junction can emit light so that the separate light-emitting diode layers may be omitted, Figs. 6 and 7 (not shown). Alphanumeric displays and use with photographic film is disclosed.
Patent GB-219745-A (GB)
Title: Improvements in mechanism for setting or displacing a tool or other device by a predetermined amount
IPC: B23Q15/00
Filed: 1923-05-02
Abstract: 219,745. Hunter, E. K., and August, J. R. C. May 2, 1923. Rod and bar feeds: gauging-devices; indexing. -Means for displacing a tool or other device by a predetermined amount either along a straight or an arcuate path comprises a series of electromagnets movable under the restraint of springs and stops and selectively controlled as by a travelling perforated strip. A shaft 1 to be displaced longitudinally is locked alternately by electromagnets 3, 4 to a fixed casing 2 and a movable series of electromagnets 5 respectively. The magnets are preferably constructed as shown in Fig. 4, the last 26 of the series having an armature 28 fixed to the casing 29. Springs 27 normally maintain the armatures against stop flanges 22 carried by the magnets. The distances betwean the armatures and the pole faces 23 are preferably related by the geometrical progression 1, 2, 4, 8, &c., though a different relation may be employed if the time control described in Specification 210,355 is utilized. A modification is described in which the shaft is returned to its initial position after each displacement. In other modifications fluid pressure or suction devices are employed.
Patent GB-911763-A (GB)
Title: Production of terpolymers and esterification products thereof
IPC: C08F8/14
Filed: 1959-04-08
Abstract: Terpolymers are prepared by heating together at from 80 DEG  to 250 DEG C. at autogenous pressure a mixture of (a) 1 to 30% of allyl or methallyl alcohol or mixture thereof, (b) 30 to 90% of styrene, nuclear alkylated or halogenated styrene, or a nuclear halogenated and alkylated styrene, or a mixture thereof, and (c) 1 to 40% of an a ,b -olefinic dicarboxylic acid with four or five carbon atoms in the molecule, or an anhydride thereof, or a half ester thereof with an aliphatic alcohol, glycol, or polyol having one to 10 carbon atoms in the molecule.  Vinyl toluene, vinyl ethylbenzene or butylbenzene, 2,3- and 2,4-dimethyl, styrene, 2,3- and 2,4-diethylstyrene, and 2-methyl-4-chlorostyrene, and maleic, fumaric, citraconic, mesaconic and itaconic acids with esterifying alcohols such as ethanol, isobutanol, n-decanol, ethylene glycol or glycerol, are mentioned. In a modification a quantity of allyl or methallyl alcohol or a mixture thereof is first heated and the mixture of monomers (a), (b) and (c) added continuously at a rate so as to continuously polymerize the mixture under isothermal conditions.  A solvent may be used with a catalyst such as hydrogen, benzoyl, pinacolone, di-t-butyl peroxides, t-butyl perbenzoate, or t-butyl, and cumene hydroperoxides, and air, oxygen, ozonides, ozo compounds or high energy radiations.  The products with from 1 to 15% of olefinic dicarboxylic acid are thermoplastic and may be plasticized, e.g. with stearic acid for use as adhesives or moulding compounds, or used with other cross-linking thermosetting resins, such as melamine, urea, or phenolaldehyde, and isocyanate or polyisocyanate resins, plasticizers and solvents such as acetone, methyl ethyl ketone, xylene, xylene-butanol mixtures and aliphatic alcohols as surface-coating resins.  Surface-coating resins may also be prepared by esterifying terpolymer with from 15 to 40% of olefinic dicarboxylic acid with a drying oil fatty acid such as those obtained from cottonseed, tall, soybean, linseed, dehydrated castor or safflower oil, together with if desired driers, e.g. cobalt naphthenate, pigments, fillers, plasticizers and stabilizers, in order form surface-coating based on the thermosetting resins.
Patent GB-110141-A (GB)
Title: Improvements in Feed Water Regulators for Steam Boilers.
Inventor: MOWER GEORGE AUGUSTUS
IPC: F22D5/16
Filed: 1917-08-17
Abstract: 110,141. Mower, G. A., and Spencer, H. W. Aug. 17, 1917. Feed-water, controlling.-In thermostatic apparatus of the kind in which steam and water act on a chamber D containing vaporizable liquid, as described in Specifications 4055/10, 10818/12, and 23922/14, the bottom D' of the chamber, instead of being flat, is of V or irregular shape in vertical section, so that changes of temperature in the chamber, according to whether steam or water is in contact with it, are more gradual.
Patent GB-362313-A (GB)
Title: Improved process for making coffee beans free from caffeine
IPC: A23F5/20
Filed: 1931-04-22
Abstract: Coffee is deprived of caffeine by disrupting the beans with steam, extracting them, and expelling the extracting agent by steam.  The beans are treated with the steam in a perforated vessel surrounded by a jacket, so that the steam is prevented from condensing on the beans and depriving them of aromatic odour.
Patent GB-641089-A (GB)
Title: Improvements in nozzles for liquid fuel burners
IPC: F23D11/38
Filed: 1947-05-03
Abstract: 641,089. Liquid-fuel burner nozzles. HODGKINSON (SALFORD), Ltd., J., and SEYMOUR, J. May 3, 1947, No. 11993. [Class 75(i)] A liquid-fuel burner nozzle with fuel fed to a swirl chamber and emerging therefrom through a nozzle orifice comprises a solid stepped cylindrical member C secured in a casing B to provide an annular fuelreceiving chamber b<SP>1</SP> from which the fuel passes to helical grooves c3 cut in the smaller and coned end face of the stepped cylindrical member, such grooves being enclosed by an internally coned nozzle member C<SP>1</SP> and terminating tangentially in an annular groove b<SP>2</SP> cut in such smaller and coned end face, this annular groove b<SP>2</SP> serving to maintain the swirl 'in the fuel on its passage through the swirl chamber b<SP>3</SP> to the nozzle orifice b4. The casing B is secured on the fuel supply pipe A<SP>1</SP> by an adaptor B<SP>1</SP>, the fuel first entering a reservoir space b formed between the adaptor B<SP>1</SP> and the large end of the solid stepped cylindrical member C and then passing by longitudinal grooves c<SP>2</SP> to the annular fuelreceiving chamber b<SP>1</SP>.
Patent GB-269738-A (GB)
Title: Improvements in connection with electric switches
IPC: H01H17/08
Filed: 1926-05-10
Abstract: 269,738. Arnold, C. L., and M. K.. Electric, Ltd. May 10, 1926. Flexible-pull actuation. - Where a tumbler switch 11 is mounted on a ceiling and is operated by depending cords 14, 15 attached to the ends of a cross arm 12 secured to the operating dolly 13, one cord 14 is made shorter than the other 15 which passes through a hole in the button 16 terminating the shorter cord, thus preventing error in selection of the cord to be pulled to produce a desired switching operation. The longer cord 15 terminates in a button 17.
Patent GB-566712-A (GB)
Title: Improvements in and relating to halogenated hydrocarbon compositions
IPC: H01B3/18
Filed: 1943-07-26
Abstract: An insulating composition adapted to be used as an insulator in electrical devices such as transformers, junction boxes, &c., in which a liquid or semi-solid composition is required is obtained by the addition of chlorinated diphenyl oxide containing more than 56 per cent of chlorine to insulators such as halogenated hydrocarbons which tend to congeal at low temperatures.  The chlorinated di-phenyl oxide acts to depress the congealing point of the mixture, and is present to the extent of at least 10 per cent.  An examplary mixture contains 54 per cent of chlorinated di-phenyl (60 per cent chlorine), 36 per cent trichlor benzene and 10 per cent solid chlorinated diphenyl oxide.  The di-phenyl oxide is chlorinated at a temperature of 100 to 200 DEG  C. with the aid of a catalyst of iron, aluminium or their chlorides, and sufficient chlorine is combined to form the hexachlor compound. From this product a crystalline product separates out which contains more than 56 per cent of chlorine, e.g. from 60 to 61.5 per cent.  This product is purified by crystallization, a distillation, and acid may be removed by weak alkali; and impurities absorbed by dry fuller's earth.  For crystallization, tri-chlorbenzene may be used as a solvent.  U.S.A. Specification 2,041,052 is referred to, as is also British Specification 12107/43 as open to inspection under Sect. 91.
Patent GB-167254-A (GB)
Title: Improvements in or relating to brakes for wheels
IPC: F16D55/46
Filed: 1920-05-01
Abstract: 167,254. Sloper, T. May 1, 1920. Suspension. - spoke wheels. - A wheel for aeroplanes, for example, is constructed capable of removal without disturbing the parts of a multiple-plate brake which are then axially accessible. A flanged ring E, secured to the wheel by two sets of tangent spokes and one set of radial spokes, is formed with a number of stampedup radial keys E<2> which are slidden endways into slots in the alternate brake-plates D.
Patent GB-350142-A (GB)
Title: Improvements in protective head-coverings for babies
IPC: A42B3/00
Filed: 1931-01-17
Abstract: 350,142. Head coverings. PRATE, J. and PEATE, E., 10, Tollerton Road, West Derby, Liverpool. Jan. 17, 1931, No. 12151/30. [Class 63.] A protective headgear, particularly for children, comprises a skeleton crown including a circular head-band 1 and a pair of cross pieces at right-angles thereto. The bands are of rubber, enclosed in a fabric covering and are adjustable in length, the ends being provided with the complementary parts of press fastenings. The whole is secured by chin-straps 11.
Patent GB-592497-A (GB)
Title: Method of and means for the transfer of heat
IPC: F25B33/00
Filed: 1944-06-28
Abstract: 592,497. Refrigerating; heat transfer systems. AKTIEBOLAGET ELEKTROLUX. June 28, 1944, No. 12279. Convention date, July 9, 1943. [Classes 29 and 64 (ii)] [Also in Group XXIX] A closed evaporating-condensing system 11, 12, 14 for transferring heat from a source of varying temperature, such as a cooking range 10 or an exhaust conduit, to the boiler 15 of a refrigerating machine or to other apparatus contains a working medium such as mercury and an inert gas, e.g., argon or nitrogen, immiscible with the vapour of the working medium, and variations in the zone of permeation of the vapour relatively to the inert gas are utilised to maintain the temperature of the heated apparatus within desired limits. The condensing part 14 of the system inserted in the boiler 15 has an upwardly projecting pipe 17 connected to a second heat delivering element 18 with cooling fins 19. The volume of the system is such that when the temperature of the heat source 10 is below that required to heat the boiler to the required lower temperature limit the mercury vapour does not reach the condenser member 14 so that no heat reaches the boiler, preventing slow degasification of the boiler liquid with no pumping action. Increase in the heat supply causes upward displacement of the vapour until it reaches the cooled container 18 and excess heat is dissipated preventing the temperature of the boiler exceeding the upper limit. The member 18 may extend into a water heater 20 or a geyser which absorbs the excess heat. To further regulate the heat supply in accordance e.g. with the temperature of the evaporator of the refrigerating machine a thermostat 32 subject to the evaporator temperature operates a valve 30 in a water circulating system comprising a down pipe 21 from the tank 20, a cooling jacket 22 surrounding the part 12 of the heat transfer system and a vapour lift pipe 24. The valve 30 (see Group XXIX) may also act as a stop valve preventing water vapour from rising in the pipe 21. The water tank 20 is fed through a float valve and the water may be drawn off through a pipe 27.
Patent GB-783160-A (GB)
Title: Conveyor devices for delivering flexible sheets from machines
Inventor: STOBB ANTON RUDOLPH
IPC: B65H29/68
Filed: 1956-04-23
Abstract: 783,160. Sheet-delivery apparatus. WESTERN PRINTING & LITHOGRAPHING CO. April 23, 1956, No. 12299/56. Class 100(1) A conveyer for transferring paper from a printing press includes a series of sheet transfer cylinders 18, 19, 29, 37 rotatably mounted in sheet transfer relation and having grippers thereon for holding the paper, the cylinder 29 being a sheet collecting cylinder, and a sheet carrier in sheet transfer relation with the cylinder 37 for receiving a plurality of sheets from that cylinder at the speed that the cylinders transfer the sheets and delivering the sheets at a slower speed to an endless conveyer 52. The paper in the form of a web 10, passes over a roller 17 between the cylinders 18 and 19 where it is cut by means of a knife 26 which co-operates with slots 27 and 31, into sheets. The cylinders 19 and 37 are twice the diameter of the cylinders 18 and 29 and all are run at the same peripheral speed. The cylinder 37 is provided with grippers 41 which are operative to take four sheets for the collecting cylinder 29 at every other revolution of the cylinder 37. The cylinder 37 passes the sheets to the carrier which comprises an arm 44 having grippers 48 thereon which rotate once for every rotation of a drive member 42 which is twice the diameter of the cylinder 37. The grippers 48 in turn pass the sheets to the grippers 54 of a conveyer 52 for delivery to a stack 56. The drive member 42 has attached thereto a bracket 62 in which is located a roller 49 on an arm rigidly attached to the shaft 46. The arm 44 is also rigidly attached to the shaft 46 by bolts 61. Thus as member 42 rotates the arm 44 is rotated at a varying speed which is greatest when the grippers 48 are adjacent the cylinder 37 and least when they are adjacent the conveyer 52. The grippers 48 comprise fixed fingers 71 mounted on a shaft 73 (Fig. 5) carried by the arm 44 and movable fingers 81 carried on a shaft 74 rotatably mounted on the arm 44. The fingers 81 are mounted for limited movement about the shaft 74 by springs 78 and the shaft 74 is actuated to cause the grippers to grip a sheet by a roller 69 which follows a cam groove 67 in a plate 64 which is bolted to the machine side frame 13.
Patent GB-510033-A (GB)
Title: Improvements in and relating to securing and releasing mechanism for doors
IPC: B60P1/26
Filed: 1938-04-25
Abstract: 510,033. Fastenings. BROMILOW & EDWARDS, Ltd., and McDONALD, R. April 25, 1938, No. 12319. [Class 44] Mechanism for securing and releasing a tophinged tail or side door 5 for a tipping body on a vehicle, comprises a cranked lever 7, normally bearing against a tread plate 9, furnished with an arcuate slot 11 engaging a pivot 10 on the body frame 2 and connected, by a hinge pin 14, with a triangular plate 13 pivoted at 12 on the body frame, the plate being further connected by a cable 15 over a pulley 16 to the vehicle chassis at 17 to the rear of the body pivot 3. The lever 7 is so balanced that it falls to open position on the pivot 10 occupying the front end of the slot 11. On bringing the body 4 back to horizontal, the tail or side door is automatically re-secured.
Patent GB-785675-A (GB)
Title: Improvements in or relating to manually closable seals
IPC: G09F3/03
Filed: 1956-04-23
Abstract: 785,675. Seals. MOOLENAARS, J. April 23, 1956 [April 25, 1955], No. 12323/56. Class 146(2) In a manually closable seal comprising two integral box-shaped sections, between which a cord 16, 17 &c. may be sealed by bending the sections together; the outermost free edge of one section is bent up at 7, provided with a slot 9, extending beyond the slot towards the bending place 2, and then bent inwardly to form a transverse partition 10, and is provided with a depending tongue 13, 18, while an apertured lip 14 is provided on the outermost free edge of the other section, so that when the sections are bent together the lip 14 passes through the slot 9 and is guided by the inner side of the first section, and the tongue 13, 18 engaged an aperture 15. In the construction shown in Figs. 2 and 3, the first section is bent to form walls 7, 8, 10, 11, and 12, the latter terminating in tongue 13, and an obliquely cut connection 22 is formed between walls 8 and 12. The material is preferably weakened at 21 to facilitate bending. In the construction shown in Fig. 5 there is no wall 12 and the tongue 18 is punched from wall 7. Wall 11 may also be omitted. A depression 6 is formed in the first section, and the lip 14 is recessed at 19 and 20 to facilitate deformation of the lip during closing. The end of the lip 14 may be pointed, and the seal then used for marking poultry &c.
Patent GB-1382597-A (GB)
Title: Conjugate polyester filaments of crimpability
IPC: D01F8/14
Filed: 1972-03-16
Abstract: 1382597 Polyester filaments IMPERIAL CHEMICAL INDUSTRIES Ltd 12 March 1973 [16 March 1972 5 May 1972] 12363/72 and 21084/72 Heading B5B [Also in Division D1] A filament having an elongation to break of less than 50% comprises two substantially linear polyester components which have different shrinkages and are eccentrically arranged with respect to each other in the filament cross-section, each component comprising a major proportion of ethylene terephthalate residues and a minor proportion of other residues copolymerized with the ethylene terephthalate residues, one component having a higher proportion of such other residues, a higher melt viscosity and a residual retraction energy, as defined, compared with the other component of less than 8 ergs. per centimetre per decitex and more than A ergs. per centimetre per decitex where A is given by the expression where P is the proportion of the higher viscosity component and X is the distance of its centre of gravity in the cross-section of the filament from the centre of the filament divided by the half width of the filament measured through the centre of gravity of the component and the centre of the filament. The fibres may be crimped.
Patent GB-560825-A (GB)
Title: Improvements in the application of guards to clamping bands for securing glass and like closures to the mouths of reflectors and kindred articles
IPC: F21V17/00
Filed: 1942-09-04
Abstract: 560,825. Securing lamp lenses and guards. THORPE, Ltd., F. W., and THORPE, F. W. Sept. 4, 1942, No. 12492. [Classes 75 (ii) and 75 (iv)] A contractible band 1 of arched cross-section for securing glass and like closures to the mouths of lamp reflectors &c. is provided on one side with welded plates 9 formed with elongated openings 8 to receive radial lugs 7 on the boundary ring 5 of a wire or like skeleton guard 6 for protecting the glass closure from damage. The band and guard may consequently be handled as a unit and when the band is contracted it grips tightly parts 7c of the lugs. In a modification the lugs are provided with inclined abutments engaged by the edges of the openings 8. The band may be expanded and contracted by a lever 14 which is pivoted to an adjustable nut mounted on a screw in a bracket 10 fixed rigidly to one end of the band and is connected by a link to the other end of the band as described in Specification 560,826.
Patent GB-103619-A (GB)
Title: Improvements relating to Pneumatically Operated Percussion Tools.
Inventor: CHRISTIANSEN HEINRICH
IPC: B25D17/08
Filed: 1916-09-05
Abstract: 103,619. Christiansen, H. Sept. 5, 1916. Percussive hand-tools; percussive drills; loose tools and bits, retaining.-In percussive tool operated by reciprocating air columns, such as a drill, hammer, or stamping-tool for railways, the supply port c leading to the front of the hammer piston b is provided with an opening c<2> which is overrun by the piston when the tool e is not in place or is not pressed against the work. The piston is then held by a spring ring h provided on the tool-holder g. The tool e is held in position by a coiled spring i.
Patent GB-587240-A (GB)
Title: Improvements in steam-boiler plant provided with soot, ashes, dust and like separators of the cyclone type
IPC: F22B1/18
Filed: 1944-07-01
Abstract: 587,240. Steam boiler plant. ROLL AKT.-GES. FUR KOMMUNALE ANLAGEN, L. VON. July 1, 1944, No. 12574. Convention date, July 2, 1943. Addition to 581,426. [Class 51 (i)] [Also in Group XIII] In apparatus according to the parent Specification the central outlet pipe 6 of the separator 1 delivers the hot gases directly to a vertical smoke-tube boiler 8. In the form shown in Fig. 1 the wall ,of the separator is lined with vertical water tubes 11 connected to external headers 12, 13, the former receiving water through a pipe 14 from the lower part of the boiler 8 while the latter is connected by a pipe 15 to the steam space of the boiler. Fig. 3 shows a modification in which the vertical tubes 11 are replaced by a coil which is supplied by a pump 17 with water drawn through a pipe 18 from the lower part of the boiler and has a connection 19 to the steam space; in this form the separator outlet pipe 6 is lined with a steam superheating coil 20 connected to the steam space of the boiler by a pipe 21 and having a steam offtake pipe 22.