baber/WOPTO huggingface dataset:
Patent GB-995003-A (GB)
Title: Improvements in or relating to liquid filled windows for use with radioactive sources
Inventor: HARDY THOMAS CHARLES
IPC: G21F7/03
Filed: 1962-04-09
Abstract: 995,003. Viewing equipment for radio-active environment. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. March 28, 1963 [April 9, 1962], No. 13652/62. Heading B4Q. A liquid-filled window permitting observation through a concrete wall 27 comprises a concrete block 2 mounted in the wall and having a stepped aperture 1 formed at the ends with recesses 3, 4. The recess 3 at the " hot " end of the window is extended axially in its upper region to form an expansion chamber 40 for the liquid. The aperture 1 up to the recesses 3, 4 has a lining 38 of polyester resin reinforced with glass scrim cloth, the ends of the aperture being closed by transparent panes 12, 15 mounted in frames 10, 14 of glass reinforced epoxy resin. The frame 10 is bonded to the pane 12 whereas the pane 15 is held in frame 14 by clamping members 16 and a gasket is interposed between the pane and the frame. The frames 10, 14 are sealed in the recesses 3, 4 by resin linings 41, 42 and tongues 13 on the frames are bonded to the lining 38 by a layer of scrim cloth and epoxy resin. A glass protecting plate 25 in a moulding 23 is secured by screws 24 to the frame 14. At the " hot " end a block 30 of radiation attenuation glass may be mounted in the wall 27 by lead strips 31, the block being protected by a glass plate 32 in a moulding 33 secured to the wall by screws 35.
Patent GB-1085850-A (GB)
Title: Improvements in laminated magnetic cores for electromagnets
Inventor: ATKINS PETER JAMES FREDERICK
IPC: G01R11/36
Filed: 1965-03-31
Abstract: 1,085,850. Electromagnets. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. March 22, 1966 [March 31, 1965], No. 13655/65. Heading H1P. An electromagnet, e.g. for an A.C. induction meter comprises a U-stack of laminations 2 having inwardly-extending free ends 5 and an I-stack of laminations 3 having a bowed end 6 fitting a recess 7 of the bight of the U-stack and having outwardly-extending arms overlapping free ends 5. The stacks are rigidly retained in contact by non-magnetic bodies 12 of e.g. brass forced into air gaps 9 between the overlaps. In a modification (Fig. 2, not shown), the faces of the overlaps are inclined at 60 degrees to the axis of the I-stack, and corresponding recesses formed in opposite faces of the air gaps, permit the insertion of non-magnetic dowels. A reversable coil may be mounted on the I-stack.
Patent GB-665664-A (GB)
Title: Improvements in reversible ploughs
IPC: A01B3/42
Filed: 1949-05-23
Abstract: 665,664. Agricultural implements. RANSOMES, SIMS & JEFFERIES Ltd., BROWN, R. A., and WARREN, C. A. May 23, 1950. [May 23, 1949] No. 13716/49. Class 6(i). An invertible plough of the type having duplicate plough-bodies 1, 2 mounted for alternate working by rotation on a frame 4 about a horizontal axle 5, is characterized in the provision of a depth-adjusting device comprising one or more land-wheels 6, 7, carried by a bracket 8 attached to the invertible frame 4 by parallel links 9, the frame being provided with an adjustable stop 12 for limiting the movement of the bracket relatively to the frame 4 so that a single depth-adjustment applies to both sets of plough-bodies. The plough is of the type described in Specification 665,663 and is supported on the tractor lifting links for raising and lowering by the hydraulic lift. The stop member 12 is carried by a screw 13 threaded in a boss 14 and operable by a hand wheel. The two wheels 6, 7 may be replaced by a single large wheel. The device can be applied to an invertible disc plough.
Patent GB-275364-A (GB)
Title: Improved manufacture of bituminous concrete
IPC: C04B28/02
Filed: 1926-05-31
Abstract: 275,364. Westrum, L. S. van. May 31, 1926. Addition to 269,975. Bituminous concrete.-A mineral aggregate is mixed dry with either (a) a cementitious material such as lime, Portland cement, or plaster of Paris, or (b) a mixture of such cementitious material with stone or slag flour, with or without iron oxide. The mixture is then further mixed with a bituminous soap, excluding in modification (a) the particular bituminous soap described in the parent Specification. For example, the aggregate is mixed with 5-20 per cent of a cementitious powder containing 4 parts of Portland cement, 3 parts of lime or plaster, 2 parts of oxide of iron, and 6 parts of stone or slag flour. A bituminous soap is made by mixing hot 30-50 parts of bitumen and 2-5 parts of vegetable oil with or without resin, and saponifying with 20-40 parts of weak alkali lye. The bituminous soap is added to the mixed dry ingredients in a quantity which is at least equal to that of the cementitious powder.
Patent GB-834382-A (GB)
Title: Improvements in or relating to frits and inorganic ceramic binders
IPC: C04B41/88
Filed: 1958-04-30
Abstract: An electrically conducting, solderable silver layer is formed as a ceramic body, e.g. porcelain or a high or low dielectric constant dielectrice body which may be in the form of a capacitor, by fusing to the surface thereof a silver composition comprising finely divided metallic silver or a compound yielding metallic silver under firing conditions, and finely divided particles of a vitrifiable inorganic ceramic binder comprising 95 to 50% bismuth trioxide or a compound yielding bismuth trioxide under firing conditions and 5 to 50% of a frit comprising 2 to 10% alkali metal oxide, 35 to 75% bismuth trioxide, 5 to 15% boron oxide, 9 to 32% silica, and 0 to 35% cadmium oxide, or compounds yielding the oxides under firing conditions.  The silver composition is dispersed in a vehicle, examples of which are given, the proportion of silver to binder being between 3 : 1 and 20 : 1. Specifications 721,858, 803,943, 803,944 and U.S.A. Specifications 2,385,580, 2,607,701 and 2,892,734 are referred to.
Patent GB-234816-A (GB)
Title: Improvements in receivers employing the heterodyne principle
IPC: H04B1/26
Filed: 1925-05-26
Abstract: 234,816. Marconi's Wireless Telegraph Co., Ltd., (Assignees of Dyck, A. F. van). May 27, 1924, [Convention date]. Thermionic heterodyne receivers. - In a superheterodyne system, the same oscillatory circuit serves to couple the received signal energy to the local oscillator and also to control the frequency of the latter, the first high-frequency stage 3 is coupled to the combined detector and local oscillator 5 by a tuned circuit 4, 7 which at the same time serves to determine the frequency of the local oscillations, the latter being of the same order as the received signals, and not an harmonic thereof. The resultant intermediate frequency is amplified by the tube 11, and the low frequency components are separated by a second detector tube 14, and are finalty passed through two stages 18, 19 of low frequency amplification. The supersonic frequency may be reflexed from the plate of the first detector 5 to the grid of the first tube 3, and thence to the grid of the tube 11. Fig. 3, shows such a reflexed circuit combined with balancing or stabilizing means consisting of a coil 63 closely coupled to the plate coil 57 and connected in series with a balancing condenser 62 across the grid of the tube 52 and the negative end of the plate battery B1. The amplified signal currents pass from the tube 52 to the autodyne detector 55. The resultant supersonic frequencies are fed back across the transformer 60 to the grid of the first tube and thence through the transformer 54 to the grid of the tube 64, and then through the subsequent tubes as before.
Patent GB-590943-A (GB)
Title: Improvements in brakes
IPC: F16D51/26
Filed: 1944-07-05
Abstract: 590,943. Brakes. BENDIX AVIATION CORPORATION. July 5, 1944, No. 13807. Convention date, Dec. 1, 1943. [Class 103(i)] In an internal expanding brake having two shoes individually capable of anchoring at either end according to the direction of rotation of the drum, the shoes anchor on sleeves in which 'are journalled shafts actuating levers for spreading the shoes. As shown, the shoes have spaced webs 44, 46 which anchor on sleeves 40, 42 secured in lugs 36, 38 on a stationary torquetaking member 24. An actuating shaft 50 is journalled in the sleeves and carries an arm 54 which bears against the junction piece 58 of the two sides of a forked lever 56 which straddles the sleeves 40, 42 and carries lugs 60, 62, The shoes are spread by the lugs which engage the end of one shoe and an adjustable link 48, connected at 72 to the other shoe. The other ends of the shoes are spread by identical means and the two shafts 50 are mechanically interconnected. A clearance is left between the lever 56 and the anchor to permit the lever to pivot either on the lugs 60 or the lugs 62, according to the direction of rotation. In a modification, the torque is taken by a single sleeve and the arm 54 is replaced by an arm, at the end of the sleeve, which engages a projection on a lever having lugs similar to the lugs 60, 62. The shoes, in this modification, have one web only. In a further modification, the torque-receiving sleeve is supported in cantilever fashion for the torque plate. The shafts 50 are clamped to operating arms which are joined by a rod, one arm being extended to provide a connection to the piston rod of an hydraulic actuating cylinder. This connection may be a slot to permit lost motion when the brakes are operated mechanically by a Bowden wire.
Patent GB-1180802-A (GB)
Title: Manufacture of Purified Amyloglucosidase Preparations.
IPC: C12N9/34
Filed: 1967-03-23
Abstract: 1,180,802. Purification of amyloglucosidase. ORGANON LABORATORIES Ltd. 23 March, 1967 [26 March, 1966], No. 13841/67. Heading C3H. A process for the purification of amyloglucosidase preparations comprises the inactivation in situ, without removal, of transglucosidase contained in an aqueous solution of the impure enzyme by incubating the solution at a pH below 2À5 without adding auxiliary substances other than a pH regulating compound which does not cause precipitation of the transglucosidase and which does not have surface-active properties. The compound added may be hydrochloric, sulphuric, phosphoric, citric, oxalic, acetic or formic acid. The aqueous solution treated may comprise the entire fermentation broth in which the amyloglucosidase has been formed, a culture filtrate, or a solution of an enzyme concentrate.
Patent GB-244497-A (GB)
Title: Improvements in the radiographic transmission of signals and the like
IPC: G08C21/00
Filed: 1918-08-26
Abstract: 244,497. Low, A. M. Aug. 26, 1918. Writing telegraphs.-The transmitting pencil b is mounted in a carrier c, shaped as shown in Fig. 1, and moves in a slot d in a member e which is itself movable in a direction at rightangles to the slot d. The movements of the pencil b and member e operate interrupters t, s through cords &c. t<1>, s<1> respectively. The carrier c is supported on a conductor f by a ball and slipper g and carries a plate h, Fig. 3, having four conducting parts i<1> - - i<4> connected to magnets of an impulse sender of the kind described in Specification 195,100, [Class 40 (iv), Telephones &c.], wherein each disc k<1> - - k<4> when released by its magnet transmits a characteristic number of impulses. When the pencil b is moved in any direction, the plate h is tilted slightly in the same direction, causing one of the parts i<1> - - i4 to engage the conductor f, thereby releasing one of the impulse discs and transmitting a characteristic number of impulses, which at the distant station select a corresponding circuit in the receiver by means of selector apparatus described in Specification 244,203, [Class 40 (iv), Telephones &c.]. The interrupters s, t then cause magnets in the selected circuit to operate ratchet mechanism to position the recording pencil, which is mounted in a slotted member and is moved in two directions by cords &c. controlled by the ratchet mechanism.
Patent GB-644678-A (GB)
Title: Improvements in and relating to copolymers of monovinyl-phenoxthines
IPC: C08F28/06
Filed: 1948-05-24
Abstract: Monovinylphenoxthines are copolymerized with a compound containing a CH2=C< group, e.g. butadiene, hexadiene-1,5, octadiene-1,4, 2-chlorobutadiene-1,3, 2,3-dimethyl-butadiene-1,3, 2-cyano-butadiene-1,3, cyclopentadiene, isoprene, piperylene; styrene, p-chlorostyrene, di- and tri-chlorostyrenes, chlorinated methyl styrene, methyl styrene, divinylbenzene, chlorinated divinylbenzenes, divinyl biphenyl, chlorinated vinyl naphthalenes, vinyl fluorenes, acenaphthylene; acrylo- and methacrylonitrile, acryl- and methacrylamide, methyl, benzyl para-chlorobenzyl, allyl, methallyl, amyl acrylates, ethylene glycol diacrylate and glyceryl triacrylate, methyl, benzyl, allyl, hexyl methacrylates, diethylene glycol dimethacrylate, methyl and propyl a -chloroacrylates and ethyl a -bromoacrylate; maleic anhydride; dimethyl and diallyl fumarates, diethyl and dimethallyl maleates; diethyl, diethylene and dimethallyl itaconates; diallyl citraconate; triallyl citrate and aconitate; methylene methyl, or ethyl malonates; vinyl methyl and ethyl ethers and divinyl ethers; dimethallyl phthalate; vinyl chloride, acetate, propionate, and butyrate; vinylidene chloride and vinyl methyl ketone, ethylene, chloro-, fluoro-, and chlorofluoroethylenes, by heating in bulk, solution, e.g. in benzene or acetone, emulsion or suspension with a catalyst, e.g. oxygen, ozone, ozonides, hydrogen peroxide, hydrochloric, hydrofluoric or sulphuric acid, boron fluoride, stannic chloride, antimony pentachloride, halogens, benzoyl, acetyl, stearyl, lauryl, sodium or barium peroxide, butyl hydroperoxide, persulphates, perchlorates or perborates, carbon black, finely divided silica, metallic powders and finely divided clays, or ultra-violet light.  In an example, 3-vinylphenoxthine is heated with butadiene in aqueous emulsion with stearic acid, potassium persulphate, potassium hydroxide and dioctyl sodium sulfosuccinate.  The product is dissolved in toluene and precipitated by methyl alcohol.  Films may be cast from ethylene dichloride solution.  Plasticizers and fillers, e.g. a -cellulose, mica dust, titanium oxide, talc, zinc oxide, magnesium oxide, asbestos, quartz, wood flour, cellulose or wool fibres may be added.  The products, in combination with paper, glass fibres, cotton, silk, rayon, nylon, sheet asbestos, cellulose acetate and acetobutyrate, may be used as dielectrics, e.g. in capacitors, or as cable impregnants, or filling compounds copolymerized in situ. Specification 644,677 is referred to.
Patent GB-715261-A (GB)
Title: Improvements in or relating to devices for indicating the speed of yarns or threads in textile machines
IPC: G01P3/40
Filed: 1950-06-05
Abstract: 715,261. Speedometers.STIBBE & CO., Ltd., G., STIBBE, E. V., and SMITH. B. May 21, 1951 [June 5, 1950], No. 14000/50. Class 106 (3). [Also in Group VIII] To equalize the speeds of running yams one yarn is lapped around a pulley to drive a cylinder 5, within which is a neon lamp connected to a 50- cycle supply. The effective diameter of the Pulley is adjusted until one of an axially-spaced circumferential series of holes in the drum appears to be stationary, and the other yarns are, in turn, lapped around the pulley and their linear speeds adjusted until the same stroboscopic effect is obtained in each case. The pulley comprises interdigitating series 30, 32 of pms providing the pulley groove and borne on flanges 29, 31, the latter of which is movable axially by adjustment of an internally threaded member 38 acting against a return spring. To lap a yam around the pulley, it is engaged with pins 45 carried at the ends of arms 44 pivoted to a forked bracket 41 straddling the cylinder axis, the pins, carrying the yam with them, being then made to sweep around the pulley by finger pressure on a plunger acting through a slidable member 49 and links 47.
Patent GB-178019-A (GB)
Title: Improvements in and connected with snap fasteners of the push peg kind for jewel cases, boxes and such like
IPC: E05C19/06
Filed: 1921-05-21
Abstract: 178,019. Cheney, C. W. May 21, 1921. Catches, spring.- Relates to a boxfastener having an horizontal strip c, fitting into a recess x<2> in the bottom of the box, which strip acts as a spring for the catch a<2>. A push a<3> when hand operated deforms the strip c and so releases the catch. Two ears c<4>, projecting over the edges of the recess, prevent the extremity c<2> of the strip from cutting into the bottom of the box.
Patent GB-859733-A (GB)
Title: Non-ferrous metal drawing lubricant
Filed: 1959-04-27
Abstract: A composition, suitable for use as a lubricant in the drawing of non-ferrous metals, comprises (1) a major proportion of a mineral lubricating oil having a viscosity of at least 50 SUS at 210 DEG F. and an aromatic content of less than 20% by weight, (2) 5-15% by weight, based on the whole composition, of an oil-soluble monohydric alcohol having a partially or completely hydrogenated phenanthrene ring system in the molecule, the hydroxyl group being attached directly, or indirectly through an aliphatic hydrocarbon radical, to a non-aromatic carbocyclic ring of the said phenanthrene ring system and (3) 0.05-1% by weight, based on the whole composition, of an oil-soluble trialkyl phenol or alkylene bis-dialkyl phenol or a corresponding cycloalkyl compound.  Ingredient (2) may be abietyl alcohol, a hydroabietyl alcohol, sapinyl alcohol or other alcohol derived from the reduction of a resin acid, or it may be a sterol. In the examples, ingredient (2) is dihydroabietyl alcohol or a bleach thereof with tetrahydroabietyl alcohol and abietyl alcohol and ingredient (3) is 2,6-di-tert. butyl-4-methyl-phenol, 2,4-dimethyl-6-tert. butyl-phenol or bis (2-hydroxy-3-tert. butyl-5-methyl-phenyl) methane.  For comparison purposes, mineral oil compositions are described which contain (a) abietyl alcohol and phenyl alpha-naphthylamine, (b) tallow, (c) stearic acid and 2,6-ditert. butyl-4-methyl-phenol or (d) abietyl alcohol.
Patent GB-105201-A (GB)
Title: Improvements in Locks.
Inventor: WELSH JOSEPH
IPC: E05B59/00
Filed: 1916-10-09
Abstract: 105,201. Welsh, J. Oct. 9, 1916. Locks, master-key.-Relates to a three-key lock of the kind described in Specification 2210/15, in which a projection on the night-bolt is in such a position when the night-bolt is shot as to prevent the operation of the lock by either the tenant's key or the sub-master key. The invention consists in so arranging the projection c<2> that, when the night-bolt c is shot, it covers the lower part of the keyhole f, preventing the introduction of the tenant's key or the sub-master key into the lock.
Patent GB-807302-A (GB)
Title: Improvements in or relating to method of improving a refractory article
Inventor: BRADSTREET SAMUEL W
IPC: C23C24/00
Filed: 1955-05-18
Abstract: A coating of thermoplastic resin or of porcelain enamel is applied to the surface of refractory articles which have been coated with refractory metal oxides by the process claimed in the parent Specification.  Molten thermoplastic material may be applied by pouring, dipping or flame-spraying, e.g. in the case of polytetrafluoroethylene.  Porcelain enamel may be applied by flame-spraying, or as a slurry, which is subsequently fired in an oven or flame-heated.  For producing the refractory metal oxide coating, various compounds containing the metal in the anion, and having a volatile cation, e.g. ammonium or an organic amine, may be used in addition to those specified in the parent Specification. They include ammonium aluminates, zincates, tungstates, molybdates, chromates, perchromates, permanganates and plumbates.  The use of acid aqueous solutions of titanium alkoxides is also mentioned.  The coatings may be applied to aluminium, magnesium or molybdenum articles, and steel belts.
Patent GB-623926-A (GB)
Title: Improvements in and relating to pipe and like couplings
IPC: F16L29/04
Filed: 1947-05-30
Abstract: 623,926. Locking nuts. AUTOMOTIVE PRODUCTS CO., Ltd. May 30, 1947, No. 14418. Convention date, Dec. 6, 1945. [Class 89 (i)] [Also in Group XXVIII] A pipe coupling nut 15 is locked by a circlip 30 which engages ratchet teeth 31 on the nut and a flange 40 on the coupling member on which the nut screws. The circlip has terminal prongs 37 engaging holes in the flange and side portions 39 bent out of the plane of the clip which bear against the flange. The nut is released by pressing back the part 36 of the circlip.
Patent GB-141958-A (GB)
Title: Improvements in or relating to rotary razor stropping machines
IPC: B24D15/08
Filed: 1919-06-06
Abstract: 141,958. Green, H. J. June 6, 1919. Stropping-apparatus.-Apparatus for stropping razors, especially safety-razors, comprises, in the construction shown in Figs. 2 and 3, a stropping- roller 17 mounted on a spindle 16 journaled in a frame 11, and a second stropping-roller 19 mounted on a spindle 18, the ends of which extend through slots in the frame and are journaled in the lower ends of the arms 21 of a pair of tellcrank levers pivoted at 22 on the outside of the frame. The second arms 30 of the levers carry finger-plates 31 whereby the levers may be moved to press the roller 19 against the razor blade, which is located with its edge between the rollers; the two levers and the finger-plates may form a single structure. The roller 19 is normallypressed away from the roller 17 by springs 32 and the rollers are rotated, through gear-wheels 25, 23, 27, 24, by a handle 29 mounted on the spindle 26 of the gear-wheel 25. The blade may be stropped without removal from the razor frame 14, which rests during stropping on a member 15 and is positioned by notches 13 formed in the frame 11; movement of the roller 19 towards and from the roller 17 does not disengage the driving-gearing. In a modification, both rollers are mounted at the lower ends of pairs of bell-crank levers pressed by finger plates. In another modification, both rollers are mounted on the lower ends of bell-crank levers which are actuated by movement of vertically slidable plates formed with slots engaging pins on the second arms of the levers. In another modification, Fig. 6, one roller 17 rotates on a stationary axis, and the other roller 19 is movably mounted as described above, the arms 21 of the bell-crank levers carrying pins 39, placed midway between the pins 22 and the spindle 18, in engagement with, and supporting, plates 38 formed with stops for positioning the razor and slidable horizontally and connected by the razor support 15; the razor blade thus moves in the same direction as the roller and to half the extent. In another modification, one roller rotates on a fixed axis and the other is mounted on a spindle, the ends of which move in arcuate slots in the frame, the roller being moved by means of a link pivoted to the lower ends of the bell-crank levers; the razor and blade are also moved as in the modification last described. In all these constructions, the rollers may be driven by means of a detachable handle, or by means of a handle permanently secured to the spindle 26 and adapted to be folded within the casing in which the frame is mounted, and to prevent rotation in the wrong direction, ratchetmechanism may be provided, or the spindle 26 may pass axially through a coiled spring 51 secured at one end 52 to the frame, so that friction between the spring and the spindle causes uncoiling of the spring when rotation is in the correct direction, but prevents rotation in the opposite direction. the stropping-material may entirely cover the peripheries of the rollers or may be wound thereon spirally.