baber/WOPTO huggingface dataset:
Patent GB-755802-A (GB)
Title: Improvements relating to antidiffusion diaphragms for radiography
IPC: G21K1/02
Filed: 1954-09-16
Abstract: 755,802. X-ray apparatus. GENERAL ELECTRIC CO. Sept. 16, 1954 [Sept. 18, 1953], No. 26895/54. Drawings to Specification. Classes 98 (1) and 98 (2). [Also in Group XXIII] An anti-diffusion disphragm comprises a plate of ray-transparent material constituted by an initially photo-sensitive glass-like substance chemically worked to produce closely spaced cavities extending at least partly through the plate and occupied by ray-opaque material. The diaphragm may be made by forming in a plate of photo-sensitive ray-transparent glass a photographic image of closely spaced cavities extending from one surface at least partly through the thickness of the plate, developing the image to produce developed portions having different chemical properties from the remaining portions, removing the developed image by chemical treatment of the plate to leave it with cavities therein, and filling the cavities with rayopaque material. The photo-sensitive glass may consist of silica with additions of lithium oxide, potassium oxide and aluminium oxide with traces of cerium and silver compounds as photo-sensitive compounds. The cavities, which may consist of slots or rod-like openings of circular or polygonal cross-section, are formed by exposure of the photo-sensitive glass plate to ultra-violet light through a negative. Preferably the exposure is made by a point source of radiation situated in the position relative to the grid to be occupied by the X-ray source, so that the cavities are properly angulated. The exposed plate is heat-treated, and the image so obtained is etched away in hydrofluoric acid, in which it dissolves more readily than the unexposed glass. The cavities may be etched right through the glass, or only part of the way, and are filled with X-ray opaque material such as litharge. The open ends of the cavities may be sealed as by a layer of lacquer, heavy paper, cardboard or metal. The plate may then be edged with metal encased in a channel-shaped strip of resilient material such as rubber. The glass plate may comprise several layers. Specification 2815/14, [Class 98 (ii)], is referred to.
Patent GB-977155-A (GB)
Title: Improvements relating to arrangements for deriving positional error signals
Inventor: STOKES JOHN ARTHUR
IPC: G05B19/35
Filed: 1961-07-25
Abstract: 977,155. Electric selective signalling systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Oct. 25,1962 [July 25,1961], No. 26908/61. Heading G4H. In an electric servo system the signals representing the actual position of the controlled member are produced by the single phase rotors of selsyns SY, Fig. 1, the desired position signals are produced by selecting appropriately timed clockpulses which occur at the rate of 100 for each mains cycle, and the comparison between the signals is effected by using each differentially timed desired-position pulse to sample the output of the corresponding selsyn; any lack of agreement producing a non-zero sample. The clock pulses are produced by two counting tubes DK1,DK2, synchronized with the main supply frequency, and appropriate ones are selected by desired position switches PT, PU, Pt, Ph and Sth (in the order tens, units &c.). These switches together with gates GT, GU, Gt and Gh, produce four differentially times pulses at times, as shown, of 56, 64, 42 and 23 on the four leads leading to selector switch ts2 to control, sequentially, the four selsyns SYT, SYU, SYt and SYh respectively. As shown an interrogator unit INT samples the phase significant output from selsyn SYT and passes the sample to a servo-motor SM. When the sampled value almost reaches zero a zero detector ZD advances the switch TS so that control is then effected by the next lower denominational selsyn. This sequence proceeds until the controlled member reaches its desired position. Displacement of the origin of the controlled member can be effected either by interposing differential phase-shifting transformers between the selsyns and the sampling unit or by appropriately phase shifting the clock pulses with respect to the main supply current (Fig. 2 not shown). In a modification (Fig. 3 not shown) the counting tubes DK1,DK2 are replaced by binary counting chains and in a further modification (Fig. 4 not shown) the least significant selsyns are replaced by a helixyn as described in Specifications 814,617, 872,152 and 953,449 which are referred to.
Patent GB-780077-A (GB)
Title: Improvements in or relating to electric plug and socket couplings
IPC: H01R13/62
Filed: 1954-09-17
Abstract: 780,077. Two-part couplings. CATOR, W. S. Sept. 14, 1955 [Sept. 17, 1954], No. 26967/54. Class 38 (1). The elements of a multi-way plug-and-socket coupling are locked together by means of a shouldered pin on one element engaging a resilient latching member on the other, the end of the pin being pointed or tapered so as to deflect the latching member during engagement of the coupling elements. The insulating body of both coupling elements comprises a front part 5a with apertured lugs 6, and a back part 5b with lugs 7, the parts being held by bent wire 8. The socket is mounted in a panel opening by means of pins 11 having flanges bearing on the panel 9 and threaded rear parts receiving bolts 14. The plug body fits in a metal casing 16 having side apertures 18 to receive the lugs 6, 7, and tubular formations 21 through which a wire clip 20 is passed to retain the body. In the assembled position the lugs 6, 7 hold in place a pair of spring latches 19, the limbs 19a of which are cut out at 19d to form narrow bands 19e which are bowed inwardly and lie behind the holes 13 in lugs 6. When the plug is applied to the socket, the conical tips 11c of the pins 11 enter the holes 13 and deflect the limbs 19a so that the bands 19e enter recesses 7a in the lugs 7. When fully inserted the bands .19e snap outwards behind the shoulders of the tips 11c, so holding the plug in position. The plug is released for uncoupling by pressing the limbs 19a between thumb and finger.
Patent GB-1353424-A (GB)
Title: Method of imparting contrast to a surface portion of an object to be investigated microscopically
Inventor: BARTZ G
IPC: H01J37/34
Filed: 1972-06-09
Abstract: 1353424 Microscopic specimen ERNST LEITZ GmbH 9 June 1972 [21 June 1971] 27021/72 Heading G2J The surface of an object to be investigated by microscope is made the positive pole of W.C. in a partially evacuated chamber, bombarded with ions and subjected to a chemically reactive gas.
Patent GB-477637-A (GB)
Title: Improvements in or relating to indirectly heated thermionic cathodes
IPC: H01J9/08
Filed: 1936-10-06
Abstract: 477,637. Electric resistance heaters. M-O VALVE CO., Ltd., and BENJAMIN, M. Oct. 6, 1936, No. 27111. [Class 39 (iii)] The tungsten filament for heating the cathode of a receiving valve is coated with a suspension of alumina containing a small proportion, e.g. 1 per cent of calcium carbonate or other calcium compound which is converted to the oxide by heating. The diameter of the alumina particles is between 30 Á and 120 Á and the mixture is milled in nitro-cellulose in amyl acetate diluted with alcohol. The coated filament is sintered in hydrogen at 1700‹ C. Tungsten heating filaments for other small metal enclosures may be similarly coated.
Patent GB-744207-A (GB)
Title: Improvements in lighters making use as fuel of a gas under pressure
IPC: F23Q2/16
Filed: 1953-10-02
Abstract: 744,207. Lighters. SOC. D'ETUDES ET DE RECHERCHES TECHNIQUES. Oct. 2, 1953 [Oct. 7, 1952], No. 27120/53. Class 75(3). In a lighter fuelled by gas from a removable cartridge on which are mounted a gas throttling device and a valve device this latter comprises a valve element adapted to be controlled by means carried on the lighter casing and a seat for said valve element and forms a unit mounted in a removable manner on the cartridge whilst the throttling device is independently fixed to the cartridge. The cartridge is supplied on the market fitted with a closure plug at the place where the valve unit is to be mounted and provides a housing for a refill flint. As shown, the cartridge 2 insertable into the casing 1 of the lighter carries a hollow support 10, the lower portion of which is provided with an internal adjustable screw 6 whose conical end 7 cooperates with the internal conical end surface 8 of the support 10 to form the throttling device for gas entering through the duct 13, the throttled gas flowing through a longitudinal groove 6a in the threads of the screw 6 to a fuel duct 16 in the bottom of a cup 14, the interior bottom of which forms the valve seat 15 for the valve element 19 carried on the end of a rod 18 slidable in the cup 14 which is screwable into the upper portion of the support 10. The upper edge of cup 14 projecting from the top of the cartridge 2 has a milled or polygonal head. Rod 18 is provided with channels 20, 21 for conveying the gas to the burner 22 when the rod is lifted from its seat against the force of spring 23 by a control lever 3 whose forked end acts upon the shoulder formed by the ring extension 25 fixed to the upper end of the rod 18. Specifications 600,645 and 600,646 are referred to.
Patent GB-1534215-A (GB)
Title: Oven with a mobile ramp
IPC: A21B3/02
Filed: 1977-06-29
Abstract: 1534215 Bakers oven LES FILS D'OSCAR BONGARD ET CIE SA 29 June 1977 [18 Feb 1977] 27156/77 Heading A2A A bakers oven is provided with a doorway having a threshold (14) above floor level, a door (2) for closing and opening the doorway, and a ramp (3, 5) for carriages to run up from floor level to the threshold (14), the ramp (3, 5) comprising a vertically displaceable horizontal top part (3) and an inclined part (5) connected to and sloping down from the top part (3), guide means (4) are provided for guiding the top part (3) of the ramp (3, 5), and there is a hoisting device (6-13) for raising and lowering the said top part (3), the hoisting device (6-13) being actuated by the door (2) to raise the top part (3) to threshold level as the door (2) swings open and to lower the top part (3) to provide clearance for the door (2) as the latter swings into its closed position.
Patent GB-641359-A (GB)
Title: Photo-electric discharge tube
IPC: H01J40/04
Filed: 1947-10-20
Abstract: 641,359. Photo-electric cells. RADIO CORPORATION OF AMERICA. Oct. 20, 1947, No. 27162. Convention date, Oct. 24, 1946. [Class 39 (i)] A photo-electric tube comprises a tubular insulating member 16 provided between a tubular anode 18 and a tubular cathode 10, to the end of which is sealed a window 12 coated internally with photo-electric material. The glass tube 16 is sealed to a chrome iron tube 10 and to a chrome iron cap 20 brazed to a copper anode 18, which carries the exhaust pinch 22 and a tubular brazed contact 26. The glass window may be sealed within the tube 10, which alternatively may be sealed at its edge to a glass plate, the overlapping edges of which are subsequently broken off. The photo-electric film 14, which extends into contact with the tube 10, consists of an alkali metal such as caesium on antimony, arsenic or bismuth; its thickness should be such that not more than 20-50 per cent of incident light passes through it. A socket is adapted to receive the tubular contact 26 and has spring fingers, which may be secured to a metal cylinder therein, to slidingly engage the tube 10.
Patent GB-298893-A (GB)
Title: Improvements in travelling grate furnaces
IPC: F23H11/10
Filed: 1928-09-21
Abstract: 298,893. Walther et Cie Akt.-Ges., and Birkner, M. Oct. 15, 1927, [Convention date]. Air, supplying.-In a furnace with a travelling grate, the usual arch above the grate is dispensed with as shown and air for combustion is supplied to the compartments beneath the grate a in increasing quantities from front to rear. Air may be delivered for secondary combustion to the combustion chamber b through openings c in the front wall provided with air-heating passages.
Patent GB-387966-A (GB)
Title: Improvements in and relating to rotary fluid pumps
IPC: F04C2/18
Filed: 1932-09-30
Abstract: 387,966. Gear-wheel pumps. McLEOD, R. J., c/o Power Plant Co., West Drayton, Middlesex. Sept. 30, 1932, No. 27234. [Class 110 (ii).] In a gear-wheel pump of the doublehelical tooth type the tooth addenda are greater than normal so as to secure simultaneous engagement in all phases of tooth contact over the tooth face which is reduced to prevent the formation of a channel between the suction and delivery sides of the pump. The number of teeth in mesh is not less than two and may be three. The pump has two rotors a, b, supported on bearings c contained in housings d. Adjusting screws f, f press on endplates e, e, to set the clearances between the housings d, and the sides of the rotors. Grease nipples are provided on the screws f, f which are hollow. Spindle b<1> is hollow to permit grease to be fed to a space'h, thence to the top bearing c of the driving spindle a<1>.
Patent GB-191191-A (GB)
Title: Improvements in suspenders for socks or stockings
IPC: A41F11/02
Filed: 1921-10-14
Abstract: 191,191. Marples, E. Oct. 14, 1921. Clips, lever.-The adjusting slide member 11, Fig. 2, and the connecting member 10 of stocking &c. suspenders are made from blanks of the form shown in Figs. 5 and 7 respectively. The blank 11 has its part 11<b> bent at right-angles to form a trough for the end of the web 9, Fig. 3, which is additionally held by the bent-over tongues 11<c>. The parts 11<a> are bent at rightangles for the reception of projections on the pivoted lever 14. The blank is similarly bent at 10b for the pivoted lever 13, which also engages stamped-up stops or projections 10<e>. The parts 10<c> and 10<d> are also bent to embrace the fabric.
Patent GB-1154691-A (GB)
Title: Method for Coating Polyolefin Films and Coated Films.
IPC: C08J7/048
Filed: 1966-06-17
Abstract: 1,154,691. Coated polyolefin film. NATIONAL DISTILLERS & CHEMICAL CORP. 17 June, 1966 [28 June, 1965], No. 27253/66. Heading B2E. A polyolefin. film: has a primer coating thereon consisting substantially wholly of a copolymer of a vinyl ester of an aliphatic saturated monocarboxylic acid having from 1 to 4 carbon atoms with an unsaturated monomer of formula wherein R is hydrogen or methyl, n is 0, 1 or 2, and R<SP>1</SP> is -COOH, -CN, or -COOR" wherein R", is an alkyl group. A vapour-impermeable vinylidene chloride interpolymer-containing coating may be applied to the primer coating. The film may be or polyethylene, polypropylene or a laminate thereof e.g. a polypropylene core having polyethylene on both sides. The film may be treated e.g. by electrical discharge, prior to the application of the primer. The 'primer coat may consists essentially of a copolymer produced by polymerisation of from 85 to 98. parts by wt. of the vinyl ester with from 15 to 2 parts by weight of the unsaturated monomer. Examples of esters and unsaturated monomers are given. The thickness of the primer coating may be equivalent to from 0.15 to 15g. of copolymer per 10,000 sq. cm. The primer coat may be applied as an aqueous composition by dipping, spraying, doctoring or gravure coating and may have a solids content of 5 to 25% by wt. The aqueous composition may be an aqueous alkaline solution and may contain from 1 to 25% by wt. 28 Be ammonia. The vinylidene chloride interpolymer may contain 70 to 95% by wt. vinylidene chloride and 30 to 5% by wt. of one or more monomers copolymerisable therewith.
Patent GB-926218-A (GB)
Title: Improvements in track retarder bar-type rail brakes
IPC: B61K7/08
Filed: 1960-08-05
Abstract: 926,218. Railway track brakes. AUGUST THYSSEN-HUTTE A.G. Aug. 5, 1960 [Aug. 7, 1959 (2)], No. 27264/60. Class 103 (1). A track retarder bar type rail brake comprising an adjustable outer brake beam 19 and a force-locking saddle 6 is characterized in that adjacent each force-locking saddle there is provided a transverse lifting member 5 on which an inner brake beam 12 is tiltably supported and in that the force-locking saddle comprises a one-armed lever fulcrumed outside the track, below the braking plane and secured to the inner brake beam so as to be suspended therefrom. The outer brake beam 19 is secured to a sliding chair guided horizontally on the transverse lifting member 5 and transversely of a track rail and to a contacting chair by means of which the force-locking saddle is guided at a distance from the transverselifting member 5. Between the sliding chair and the transverse lifting member 5, there is arranged a spring 25 controlled by means of a tensioning screw 29 in its movement towards an adjusting device.
Patent GB-934745-A (GB)
Title: Improvements in foldable shelving for storage cabinets
IPC: F25D25/02
Filed: 1962-07-16
Abstract: 934,745. Shelves. LICENTIA PATENTVERWALTUNGS-G.m.b.H. July 16, 1962 [July 17, 1961], No. 27268/62. Class 52 (1). A foldable grid shelf, e.g. for a refrigerator, comprises an open sided frame 4 having cranked, free ends 6 which engage under a closed adjoining frame 3 such that the assembled shelf 3, 4 cannot collapse downwardly. The assembled frames 3, 4 lie in the same plane with the free ends 6 engaged beneath the end of the closed frame 3 and in downwardly concave portions 8 of a grid bar 7. A stop 9 is provided on the free cord 6. The frames 3, 4 may be used separately in reduced width portions of a refrigerator.
Patent GB-458524-A (GB)
Title: Improvements relating to drainage trays for wringing or mangling machines
IPC: D06F45/00
Filed: 1935-10-03
Abstract: 458,524. Wringers. ELFORD, E. R., London Works, Tyburn Road, Erdington, Birmingham. Oct. 3, 1935, No. 27281. [Class 138 (ii)] In a wringer wherein the drip tray a is provided with an upper ledge e over which the goods pass before entering the nip of the rollers, such ledge is not joined to the front edge of the tray but is spaced therefrom so that water expressed by the rollers discharges through the space f into the tray instead of running over the front edge thereof.
Patent GB-186523-A (GB)
Title: Improvements relating to brooms, mops, polishing pads and like cleaning appliances
IPC: B25G3/00
Filed: 1921-10-14
Abstract: 186,523. Leng, A. C., and Leng, A. S., (trading as Leng & Sons, C. H.). Oct. 14, 1921. Scrapers.-The attachment plate a of the handle socket b of a broom, mop, polishing pad, &c. d, may be extended as at l to form a scraper.
Patent GB-1480391-A (GB)
Title: Aromatic and aralkyl phosphonates process for their manufacture and process for flameproofing organic fibre materials by the transfer process
IPC: D06M13/288
Filed: 1974-06-20
Abstract: 1480391 Phosphonate diesters useful as flame-retardants CIBA-GEIGY AG 20 June 1974 [22 June 1973 26 July 1973] 27442/74 Heading C2P [Also in Division C1] The invention comprises phosphonate esters of the general formula wherein A 6  is (C 1 -C 5  alkoxycarbonyl)-hydroxyphenyl or phenyl(hydroxyphenyl), R 1  denotes C 1 -C 6  alkyl, and n is 1 or 2. The compounds in which A 6  is 3-(C 2 -C 5  alkoxy carbonyl)-4- hydroxyphenyl or 3-phenyl-4-hydroxyphenyl are preferred and can be obtained by reacting a compound of the formula where Y is a halogen atom, n is 1 or 2 and Z 6  is C 2 -C 5  alkoxy carbonyl or phenyl and if Z 6  is C 2 -C 5  alkoxy carbonyl Z 5  is a free OH group or if Z 6  is phenyl Z 5  is an acylated OH group with 2 to 5 carbon atoms in the acyl radical with a phosphite of the formula (R 1 O) 3 P in the melt at 100‹ to 190‹ C. and, if n is 1, in the presence of a divalent nickel halide as catalyst and then, if Z 5  is an acylated OH group, hydrolysing the resulting compound to convert Z 5  to a free OH group. The hydrolysis is carried out in an alkaline medium preferably employing a solvent mixture in which the phosphorus compound obtained is soluble and a C 1 -C 4  aliphatic amine, e.g. diethylamine. The products can be applied as flame-retardants to organic fibre materials by the dry thermal transfer process. The following compounds which are useful as flame-retardants in like manner are also prepared in an analogous manner from triethyl phosphite and the corresponding substituted benzyl chloride.
Patent GB-1364391-A (GB)
Title: Reactor for the procution of lead oxide with a high free lead content
IPC: C09C1/14
Filed: 1972-06-12
Abstract: 1364391 Contacting molten lead with air SOC MINIERE & METALLURGIQUE DE PENARROYA 12 June 1972 [10 June 1971] 27448/72 Heading B1F [Also in Division C1] A reactor for the production of lead oxide with a high free lead content, by partial oxidation of molten lead by air, comprises a chamber 1 of generally circular cross-section, a rotary stirrer. 3 with means for adjusting its rotational speed, an air inlet 8 inclined from the vertical in the direction of rotation of the stirrer, a molten lead inlet 11, an oxide outlet duct 15, and a chamber 21, through which cooling air passes for cooling chamber 1, Air passing down pipe 17 cools the upper end of the bearing in which shaft 5 of the stirrer 3 is mounted.
Patent GB-1484247-A (GB)
Title: Concentrate and beverage production
IPC: A23L1/09
Filed: 1974-09-02
Abstract: 1484247 Clouded beverages based on bottling syrup and milk SCHWEPPES Ltd 2 Sept 1974 [9 June 1973] 27552/73 Heading C6E [Also in Division A2] Condensed milk containing not less than 26% milk solids and 45% sugar is injected under pressure into a flavoured, acidified syrup to produce a beverage or beverage concentrate. The pH of the syrup may be 2-4. The injection may be carried out by means of a centrifugal pump. A typical concentrate may contain 76 parts by volume of milk, 16 parts water and 880 parts syrup. The mixture may be diluted, carbonated and pasteurized, to produce a cloudy beverage.
Patent GB-714231-A (GB)
Title: Pyridine derivatives and process for the manufacture thereof
IPC: C07D213/81
Filed: 1952-11-03
Abstract: The invention comprises 1-isonicotinyl-2-acyl-hydrazines of the general formula <FORM:0714231/IV (b)/1> wherein R stands for an aliphatic carboxylic acyl radical (e.g. alkanoyl, substituted alkanoyl, alkenoyl and substituted alkenoyl) or an aromatic carboxylic acyl radical (e.g. benzoyl and substituted benzoyl).  The compounds are prepared by reacting isonicotinyl-hydrazine with an acid halide or with an acid anhydride of the formul  R-Hal or R-O-R respectively.  The examples describe the preparation of 1-isonicotinyl - 2 - acetyl - hydrazine, 1 - isonicotinyl - 2-propionyl - hydrazine, 1 - isonicotinyl - 2-butyryl - hydrazine, 1 - isonicotinyl - 2 - (b -carboxy - acryloyl) - hydrazine, 1 - isonicotinyl-2 - benzoyl - hydrazine, 1 - isonicotinyl - 2 - (2-carboxy - benzoyl) - hydrazine, 1 - isonicotinyl-2 - stearoyl - hydrazine, 1 - isonicotinyl - 2-palmitoyl - hydrazine, 1 - isonicotinyl - 2-lauroyl - hydrazine, 1 - isonicotinyl - 2 - D 9-undecenoyl - hydrazine, 1 - isonicotinyl - 2-phytanoyl - hydrazine (the picrate of which is described), 1 - isonicotinyl - 2 - (21,41,61 - trimethyl - benzoyl) - hydrazine and 1 - isonicotinyl - 2 - (21,31,51 - trichloro - benzoyl)-hydrazine.
Patent GB-1384018-A (GB)
Title: Closure caps
IPC: B65D41/08
Filed: 1972-06-13
Abstract: 1384018 Closure caps ANCHOR HOCKING CORP 13 June 1972 [14 June 1971] 27595/72 Heading B8T A cap for a glass container 3 comprises a moulded inner ring 2 which has a bead 7 (or groove) engaging a groove 10 (or bead) in the container 3 and which is formed with screw threads 12 (or lugs) engaging screw-threads 13 (or lugs) on an outer cover 4, a flange 16 on the ring 2 engaging the lower edge 14 of the skirt 15 of the cover 4 to exclude insects and dirt, and sealing means being provided within the cover for sealing the container 3. The cap 1 may be pushfitted on to the container 3, and subsequently removed and replaced by screwing, the ring 2 being prevented from rotating by projections in the container groove 10 engaging recesses in the ring bead 7. The sealing means may be a gasket 5, or a bent-inward portion of the cover 4 engaging the ring 2 (which may be extended over the container rim). A tamperproofing band 17 is connected to the ring flange 16 by means of a tear strip 19 and rupturable bridges, and prevents the cover 4 being gripped and twisted. The screw-threads 12, 13 may comprise overlapping portions or be continuous.