baber/WOPTO huggingface dataset:
Patent GB-280990-A (GB)
Title: Improvements in or relating to the treatment of fabrics
IPC: D06M13/07
Filed: 1926-07-27
Abstract: 280,990. British Gelanese, Ltd., and Ellis, G. H. July 27, 1926. Yarns and threads, treating with liquids.-Fabrics made of or containing cellulose ethers or esters are treated without loading to increase the friction between the fibres, e.g. to reduce laddering with one or more organic substances having a solvent or solute action upon the fibres or with solutions or dispersions of such substances of at least 5 per cent. concentration by weight. Examples of such organic solvents or solutes are as follows :- (a) Hydrocarbons such as those, of the paraffin, aromatic, naphthene or terpene series, and their hydrogenated and halogenated derivatives for examples; hexane, decane, dodecane, or higher paraffin hydrocarbons or mixtures of such as may occur in various commercial liquid paraffins like gasoline. and the like. benzene, toluene, xylenes, naphthalenes, dekanaphthene, undekanaphthene, dodekanaphthene, pinene, sylvestrene, hexahydrobenzene, tetrahydronaphthalene, trichlorethylene, tetrachlorethane, chlor or polychlor benzenes, chlor or polychlor toluenes, chlor or polychlor xylenes, alphachlornaphthalene, betachlornaphthalene, poly chlornaphthalenes; (b) alcoholic and phenolic bodies of the various chemical series, and their halogenated or hydrogenated derivatives, for instance, ethyl alcohol, propylalcohol, glycerol, phenol cresols, xylenols, hexahydrophenol, alphanaphthol, betanaphthol, resorcin, catechol, guaiacol, anisol, tetrahydro naphthol, chlorhydrin, chlorphenol, chlornaphthols; (c) Amino compounds, or their hydroxy or halogenated derivatives, for instance, aniline, alkyl- or diatkylanilines, alkyl or dialkyl toluidines, alkyl or dialkyl xylidines, benzylaniline, diphenylamine, naphthylamines, alkyl and aryl naphthylamines such as phenyl- and ethylalphanaphthylamines, chloranilines, chlornaphthylamines, aminophenols, aminonaphthols, alkylaminophenols, alkylaminonaphthols; (d) Ketonic, aldehydic substances such as acetone, diacetonealcohol, formaldehyde, benzaldehyde, and miscellaneous organic substances for example nitro derivatives such as nitrobenzene, nitrotoluene, and the like; (3 Carbocyclic sulphonic or carboxylic acids, such as those of the benzene, naphthalene or anthracene series, or derivatives thereof such as phenolsulphonic acids, or sodium, ammonium or other alkali salts of such acids. These reagents may be applied as such, in solution in ordinary solvents, or in colloidal dispersion in aqueous media. These colloidal dispersions may be formed by the methods described in Specifications 219,349, 224,925, 242,393, 273,819, or 273,820, [all in Class 15 (ii), Dyeing, Processes &c. for]. Specifications 165,164 and 206,818, [both in Class 15 (ii), Dyeing, Processes &c. for], also are referred to.
Patent GB-223957-A (GB)
Title: Improved means for electrically exploring the interior of the earth and for other purposes
IPC: G01S13/12
Filed: 1923-07-20
Abstract: 223,957. Lowy, H. July 20,1923. Duplex signalling.- The distance of a conductive body within the earth, or the height of an aeroplane &c., is determined from the time taken for electric waves to reach the object and return therefrom bv reflection. A transmitter S, connected to a transmitting aerial A, and a receiver E, associated with a frame aerial R, have their anode circuits alternately completed by the electron ray of a vacuum tube U, which is deflected from the central anode to groups of overlapping auxiliary anodes a, b bv the electric field due to condenser plates C. These plates are connected to an oscillation generator (not shown), the frequency of which is varied until maximum reception is obtained. The number of auxiliary anodes in each group may be varied in order to adjust the ratio between the times during which each circuit is closed, and the period during which both circuits are open. De-coupling between the transmitting and receiving circuits is effected by an intermediate circuit Z. The same aerial may be employed for transmission and reception, and if the period of oscillation of the electron ray is small compared with the duration of a Morse signal, simultaneous transmission and reception may be effected on the same aerial. Instead of varying the anode circuit, the grid voltage may be varied either by a vacuum tube with deflected ray or by coupling a coil in the grid circuit with a coil in the circuit of the oscillation generator for effecting the cutting in and out of the transmitter and receiver. Instead of oscillations, pulsating uni-- directional current or electric beats may be employed.
Patent GB-1350887-A (GB)
Title: Beds for invalids and the infirm
IPC: A61H1/02
Filed: 1971-03-09
Abstract: 1350887 Adjustable beds C G RODRIGUEZ 9 March 1971 [16 March 1970] 18752/73 Divided out of 1350586 Heading A4J In a bed having three pivotally inter-connected sections with the central section remaining fixed relative to the two outer sections, the two outer sections are adjustable in inclination and are supported in their inclined positions by the engagement of struts 91 in grooves or notches formed in supporting frameworks 93 pivotally mounted on the same axis as the outer sections, the supporting frameworks and hence the outer sections being supported in various inclined positions by cables 94 which can be wound in or paid out from shafts 85. Braking of the shaft 85 may be effected by means of a friction brake (95) (96) Fig. 3 (not shown).
Patent GB-1469948-A (GB)
Title: Masking process with constricted flow path for coating
IPC: H01L49/02
Filed: 1974-04-30
Abstract: 1469948 Masking substrates UNION CARBIDE CORP 30 April 1974 [1 May 1973] 18853174 Heading B2E A substrate, particularly a glass fibre reinforced phenolic resin laminate for use as a circuit board substrate, is coated by vapour deposition with a condensing coating material by (a) masking a defined area of the substrate so as to provide at the edges of this area a constricted flow path for the vaporous precursor of the coating material, the flow path having a first boundary adjacent the area to be coated and a second boundary along the edge of the masked area and having a length to height ratio of at least 60:1 (and preferably >120:1), the height of the flow path being at least 0.0005 inch; (b) applying said vaporous precursor so that it condenses on, and evenly coats, the masked and unmasked areas thereof and permeates the flow path to condense therein and form a progressively thinner coating from the first to the second boundary thereof, thereby providing a coating which is thinnest at the edges of the defined area; and (c) shearing the coating along said second boundary so as to tear it from the defined (i.e. uncoated) area. The vaporous precursor may be a paraxylylene monomer (optionally substituted), provided by pyrolysis of the corresponding cyclic dimer, or mixtures of such monomers which will yield homo- or co-polymers depending on the condensation temperature. The polymers may also be treated after formation to introduce substituent groups. Constricted flow paths 10a and 10b may particularly be provided by means of lipped edges 9a, 9b on the masking means 8a, 8b, the coating 13 becoming progressively thinner from the first boundaries 11a, 11b to the second 12a, 12b to enable shearing of the coating at these second boundaries. The flow paths are normally <SP>1</SP>/ 16 -# inch long. The masking means may comprise masking tape, paper, polyethylene, vinyl resins, PTFE, acetate resin, cellulosic film, woven tape, foil, silicone rubber, or epoxy resin polyester resin or phenolic resin laminates and may be secured to the substrate by adhesives, clamps, clips, spring loaded holders or shrink fit devices.
Patent GB-1070519-A (GB)
Title: Improvements in or relating to field effect transistors
Inventor: DRAKE CYRIL FRANCIS
IPC: H01L21/205
Filed: 1966-04-29
Abstract: 1,070,519. Field effect transistors. STANDARD TELEPHONES & CABLES Ltd. April 29, 1966, No. 18855/66. Heading H1K. A field effect transistor, Fig. 10, is made by epitaxially depositing a thin uniform layer of P-type silicon on a P+ silicon substrate 6, removing the layer, apart from a series of parallel strips, by air abrasion through a mask, depositing phosphorus or arsenic doped N + material epitaxially over the strips, lapping flat to re-expose the strips, and finally forming a P+ layer 14 interconnecting the strips by diffusion or epitaxial deposition. The width of the strips constituting the channel regions of the finished device may be reduced prior to the final step by heating to diffuse impurity laterally into them from the N + material. Part of P + layer 14 is removed subsequently to expose the N+ gate, source and gate electrodes are provided by evaporation and the device soldered to a header.
Patent GB-1166534-A (GB)
Title: Improvements in or relating to Connecting Pieces for Tubes
Inventor: CURRIE JAMES CROSBIE
IPC: F16B7/00
Filed: 1967-04-25
Abstract: 1,166,534. Shaping tubes. J. C. CURRIE. 27 Feb., 1968 [25 April, 1967], No. 18880/67. Heading B5A. [Also in Divisions B6 and E1] A synthetic thermoplastics (P.V.C.) tube 26 is formed with a tubular socket by cutting the end at an angle, softening it in hot oil and then inserting the chamfered end between a wooden former 27 and a flexible tension strap of soft metal, tension being maintained on the strap to hold the tube stationary. After cooling the strap is released and the former removed from the curled socket. In an alternative method, after heating in oil the extreme end of the tube is flattened and inserted into a notch in a cylindrical forming bar and bent to form a socket, a bulbous rib being formed at the edges. After cooling the former is removed and the lip which was in the notch cut off. In one example the tube is formed with a bend approximately 12 inches from one end by filling with sand, heating and bending, before the socket is formed at the end.
Patent GB-353198-A (GB)
Title: Improvements in or relating to see-saws
IPC: A63G11/00
Filed: 1930-06-21
Abstract: 353,198. See-saws. HIRST & SONS, Ltd., B. and HIRST, C., Britannia Works, Weymouth Street, Halifax, Yorkshire. June 21, 1930, No. 18939. [Class 132 (i).] A see-saw is provided with hydraulic means by which a gradually increasing resistance is offered to downward movement of either end of the plank, preferably during the latter part only of such movement, but by which' a free upward movement is permitted. The plank a turns on a pivot b carried in a bearing supported by a casing d. Within this casing are two cylinders f, g having pistons f<1>, g<1> connected by links f<3>, g3 to a lever h pivoted at i and notched at h<1> to engage a block j mounted on a pin k attached to the depending part of a bracket c bolted to the plank a. The cylinders are either open at the top or as shown provided with a series of perforations f<4>, g<4>. The base of each cylinder is formed with a conical seat m for a ball valve n which closes an inlet o. A series of openings f<5>, g<5> are formed in the wall of each cylinder and below them a number of rows of small openings f<6>, g<6>. Over each series of small openings is a spring plate, the distance of which from the openings f<6>, g<6> is regulated by a tapered rod r screwed at its upper end. The casing d is filled with liquid to a height above the openings f<4>, g<4>.
Patent GB-771891-A (GB)
Title: Improvements in or relating to magnetic shields for cathode ray tubes
IPC: H01J29/86
Filed: 1954-06-29
Abstract: 771,891. Cathode-ray tubes. MAGNETIC METALS CO. June 29, 1954 [Nov. 18, 1953] No. 19017/54. Class 39(1). A cathode ray tube is provided with a magnetic shield in the form of a helically wound strip adjacent turns of the helix partially overlapping one another. and the diameter of the helix progressively increasing along its length. The shield protects the beam against stray magnetic field such as the earth's magnetic field, D.C fields, and A C. fields at 60 c.p.s., 120 c.p.s. or higher frequencies. In one form a silicon steel strip containing 2-5 per cent, preferably 3-4 per cent, silicon is wound as a spiral coil, Fig. 2, and if the strip is not already annealed a plurality of such coils are stacked and annealed at 1250-1500F. The coil is then fitted on to the top of form 21, Fig. 7, and the turns pressed down to obtain a helix with partially overlapping turns and of progressively increasing diameter, and the helical coil is coated with adhesive such as silicone varnish by dipping, spraying or brushing, after which the form is removed. Since stray fields are more deleterious near the gun than near the screen the shielding is made greater towards the tube neck by increasing the overlap of the helix turns, as shown. The grain of the magnetic material, i.e. the direction in which its permeability is greatest, is longitudinal of the magnetic strip. In another embodiment, Figs. 9, 10 (not shown) a layer of paper is wound between the layers of silicon steel. If no annealing is required ordinary paper may be used, but when annealing is necessary asbestos paper is needed. The layer of paper may be replaced by molybdenum, permalloy which gives good shielding for weak stray fields while the silicon steel gives good shielding for strong fields. Alternatively to obtain good shielding at high as well as at low frequencies the paper is replaced by copper, the copper strip being wider than the silicon steel strip, Fig. 11 (not shown). The upper ends of the copper strips may be brought together by spinning, Fig. 12 (not shown). Nickel-iron alloys may be used instead of silicon steel. The inner turns of the spiral coil of Fig.2 may be of permalloy and the outer turns of silicon steel, or a single silicon steel strip can be made wider towards the tube neck. If the tube has a rectangular cross-section the coil of Fig. 2 is rectangular instead of spiral. In a modification the spiral coil may be wound directly on to the form. A female form may be used, Fig. 14 (not shown). In another modification the spiral coil may be wound with a larger central hole than finally required and the inner turn is rotated anticlockwise to separate the turns, after which a strip of paper, copper or another magnetic material can be threaded between the turns.
Patent GB-644594-A (GB)
Title: Improvements in or relating to perforated rolls for paper-making machines and the like
IPC: D21F3/10
Filed: 1947-07-17
Abstract: 644,594. Rolls of paper machines. WALMSLEYS (BURY), Ltd., and TEMPERLEY, J. July 17, 1947, No. 19069. [Class 96] Holes in a paper machine roll a, e.g. a suction couch roll each have a countersink c which is offset to the bore b so that the locus l of the rotationally leading points of the cross sections of each hole is a straight line. Each hole may be inclined with respect to the diametral plane of the roll passing through the point of intersection of the axis of the bore b and the circumference of the roll, in the' direction of rotation. The bore b may taper inwardly.
Patent GB-576846-A (GB)
Title: Improvements in or relating to x-ray radiography
IPC: G03B42/02
Filed: 1943-11-16
Abstract: 57 6 ,846. Radiographic cassettes. POWERS, F. T. Nov.'16, 1943, No. 19090. Convention date, Nov. 24, 1942. [Class 98 (i)] A cassette for radiography in which successive strips of X-ray sensitive material are exposed, is provided with a curved flexible window, a clamping plate which carries an electrically conducting layer and means operable in one direction for severing the exposed strip and in the other direction for clamping the sensitive material and the flexible window into substantially planar engagement with the wall of the cassette. The film 19 is wound from the supply spool 18 on to the take-up spool 23 by driving the latter and two friction rolls 48, 53, by means of gearing and belts 36, !38, 45, 49, 50 and a crank 52a. The film passes behind a window 13 of aluminium, synthetic resin or similar X-ray-permeable material. The window 13 and the opening in the front wall are bevelled at their edges, and the former is normally flexed inwardly so that when the clamping plate is applied the window becomes a true plane surface and its edges engage firmly with the retaining wall. A thin sheet of aluminium 17 covers the inner side of the window and discharges any static electricity present on the film 19. The take-up spool 23 is held in brackets, one of which 25 is hinged and retained by a toggle 30, the breaking of which allows the spool to be removed. The clamping plate 70 is provided with a pair of coaxial shafts 71, each of which carries a roller 72 rolling on rails 73. The plate is moved into and away from the clamping position by a series of toggles 90, 93, 94 hinged on shafts 80, 91, secured to the side walls of the cassette. The shaft 80 is provided with a crank-arm 84 which has a limited movement in an arcuate member 85. The clamping plate 70 comprises a backing plate 100 of lightweight material such as plywood, a shield member 101 of sheet lead, a flexible mounting member 102, e.g. of sponge rubber, an insulating member 103, e.g. of aluminium, and an intensifying screen 104, the whole being cemented together. The intensifying screen is, however, only secured at its corners. A reciprocating knife blade 110 severs the film, being driven by pinion gears 119 engaging toothed rack members 112 at each end of the knife. The gears 119 are rotated by toothed sectors 124 on lever arms 126, the other ends of which are bevelled and adapted to be engaged by lever arms 130 secured to the shaft 80. Consequently, the knife severs the film after the plate has been moved away from the clamping position, and does so by a movement of the crank-arm 84 additional to but in the same sense as that for moving the clamping plate away. In a modification (not shown), a detachable receptacle for the cut film is provided instead of the takeup spool and receives the severed film through light-tight slits. Alternatively, the front wall of the casing 10 and the receptacle may form a part of the wall of a dark room.
Patent GB-1357442-A (GB)
Title: Polymeric phenazinium compounds
IPC: C07D241/46
Filed: 1971-06-07
Abstract: 1357442 Phenazinium compounds SCHERING AG 7 June 1971 [6 June 1970] 19172/71 Heading C2C [Also in Divisions C3 and C7] Phenazinium compounds have the formula where n is from 2 to 100, A is an acid residue and R<SP>1</SP> to R<SP>9</SP> are hydrogen atoms or alkyl or aryl groups, R<SP>5</SP> or R<SP>8</SP> being a free valency when n is greater than 2. They are prepared by diazotizing a compound of formula and heating the reaction solution to liberate nitrogen. Examples of the compounds and their preparation are given. The compounds are used as additives to acidic copper electrolytes to obtain improved copper coatings.
Patent GB-771415-A (GB)
Title: Swarf extractor for blind holes
Inventor: GRIFFITHS ARTHUR EDWARD
IPC: B23Q11/00
Filed: 1955-07-02
Abstract: 771,415. Confining dust generated in industrial processes. MORRIS COMMERCIAL CARS, Ltd. July 2, 1955, No. 19215/55. Class 8(2) Swarf is removed from a blind hole by. compressed air from a nozzle 6 extending almost to the bottom of the hole and having adequate clearance thereabout and is then conveyed to a receptacle 1 through a conduit 9 having a grammet 8 sealingly engaging the periphery of the hole. The compressed air supply is controlled by a trigger actuated valve 4, and excess air is vented through an orifice 22 in a detachable lid 16 held by a yoke 17.
Patent GB-481665-A (GB)
Title: Improvements in or relating to brakes
IPC: F16D51/28
Filed: 1936-07-11
Abstract: 481,665. Internal expanding brakes. BENDIX AVIATION CORPORATION. July 11, 1936, No. 19276. Convention date, July 13, 1935. [Class 103 (i)] In an internal-expanding brake the levers 40 and the shoes 14, 16 that they apply both pivot on and are adjusted by an anchor 54. The levers are operated by a laterally moving wedge in a casing 20 acting on the ends of plungers 24 engaging the ends of the levers. A wedge adjuster is adapted to act on plungers 50 on which the other ends of the levers and the shoes are fulcrumed in order that both the shoes and the applying means may be adjusted simultaneously. The levers 40 are U-shaped and embrace the shoes 14, 16 and also U- shaped links seating in the levers engage pins 46 mounted in the shoes. The wedge operating means comprises a plunger connected to the brake transmission and having rollers engaging one another and having axle pins seated in operating slots in the plunger to allow the shoes and rollers to shift and anchor at opposite ends for forward and reverse braking. Plungers 24 are slotted to receive the webs of shoes 14, 16. The ends of the shoe webs engage the plungers 50 but not the plungers 24. The invention is shown modified for a Ford type front wheel brake having a wedge operated by a plunger through the king pin. A further modification shows one shoe operated by a lever 40 and the other directly operated.
Patent GB-579833-A (GB)
Title: Spectrophotometer
IPC: G01J3/32
Filed: 1943-11-18
Abstract: 579,833. Spectrophotometers. COLMAN, E. DE W. Nov. 18, 1943, No. 19286. [Class 97 (i)] [Also in Group XL] In a spectrophotometer a line source of light is combined with a condensing lens, a slit and a diffraction grating between the lens and the slit to give a spectrum in the plane of the slit and means are provided for moving the source of light at right angles to the optic axis to bring light of the desired wavelength into register with the slit together with means for moving the light source parallel to the optic axis to bring the selected wave-band into focus on the slit. As shown, light from a line filament 4 of a prefocused lamp 3, adjustably mounted in its base and fitted on an arm 6 pivoted at 7, is passed through a condensing lens 19 on the exit face of which is secured a diffraction grating 23, preferably an echelette grating, and the spectrum so formed is focused on a slit 21. The wave-band passing through the slit 21 falls on an achromatic collimating lens 24, then through a reflecting prism 25 mounted on an arm 29 pivoted at 31. On the exit face of the prism 25 is mounted a second diffraction grating 27 and a second achromatic lens 26 concentrates a monochromatic wave-band of high intensity and purity on a second slit 28. The pivoted arms 6 and 29 co-operate with one another and with a cam 34 in such a manner that the lamp 3 and the prism 25 move so that the same wave - bands are simultaneously projected through the slits 21 and 28. In using the instrument, the monochromatic light from the slit 28 is passed first through a reference substance and then through a sample held in a cuvette carried on a transverse carriage 38 and the difference in intensity measured by a photo-electric tube 41 in conjunction with a potentiometer such as is used in the measurement of pH values. A description is also given of the electrical equipment for the light source and the photo-electric tube.
Patent GB-301715-A (GB)
Title: Improvements in or relating to tools or other articles having handles of wood or other material needing ferrules
IPC: B25G1/00
Filed: 1928-07-04
Abstract: 301,715. Atkins, H. F. July 4, 1928. Hand tools. - Tools such as wood chisels are formed with a socket c bolster b, and tang a all integral with the body of the tool by acting on a blank d, while supported in a die f, with a hollow punch e.