baber/WOPTO huggingface dataset:
Patent GB-519662-A (GB)
Title: Improvements in or relating to dynamo-electric generators
IPC: H02K23/44
Filed: 1938-10-20
Abstract: 519,662. Exciting dynamos; pole-pieces. WESTINGHOUSE ELECTRIC & MANUFACTURING CO. Oct. 20, 1938, No. 30373. Convention date, Nov. 27, 1937. Addition to 519,629. [Class 35] A generator of the crossfield type, as in the parent Specification, has its field poles so disposed as to give air-gaps of non-uniform reluctance which prevent the excitation from the auxiliary continuouscurrent source from increasing the no-load current. Fig. 1 shows a machine in which the gaps are widened from the leading pole-tips 30 to the trailing tips 29 (rotation being counter-clockwise). The auxiliary excitation source 20 is connected through a reversing switch 24, for reversing the machine polarity, to the commutating and series coils 21, 23 and 17, 19. Magnetic shunts 51, with damping coils 54, are held pivotally on the pole-piece 27 by bolts 56 and springs 57 and are adjusted by means of a threaded shaft 58, In the form shown in Fig. 2, the graded gap reluctance is obtained by forming the pole-shoes with two portions 67, 70 concentric with the armature but of different radii so as to. give a shorter gap under the leading portions 73 and a longer gap under the trailing portions 75 of the poles.
Patent GB-190330-A (GB)
Title: Improvements in or relating to theft signals for motor vehicles
IPC: B60R25/04
Filed: 1921-11-15
Abstract: 190,330. Zepka, L. R., and Beutel, A. G. Nov. 15, 1921.. Guarding against unauthorized use.-A keyoperated theft signal of the type described in Specification 190,329 is secured to the frame of the wind-shield of the vehicle. The casing is fixed to a base 11 secured to the frame by bolts 13. Operation of the lock 24 rotates a disc 25, thereby lowering the indicating plate 31 into visible position by a pin and slot device 28, 29. The handle 12 serves for tilting the wind-shield. In another form, an indicating mechanism described in Specification 190,329 is used, the casing being mounted on a base secured through a suitablyshaped distance-piece to the wind-shield frame.
Patent GB-712228-A (GB)
Title: Improvements in and relating to temperature and arc resistant insulating materials
IPC: H01B3/06
Filed: 1952-12-01
Abstract: A thermoset heat-treated moulded product is obtained by reacting under heat and pressure a mixture of chrysotile asbestos fibres and orthophosphoric acid and subjecting the resultant product to a temperature of from 800-1000 DEG C.  The preferred proportions are 2 to 3.5 parts of asbestos to each part of concentrated phosphoric acid.  Zircon may be used as a filler. Specifications 564,263 and 677,949, [Group XXXV], are referred to.
Patent GB-1268953-A (GB)
Title: An adaptor for a device for measuring pressure
Inventor: PIKO ZOLTAN
IPC: G01L19/00
Filed: 1969-06-16
Abstract: 1,268,953. Pressure gauges. "LICENCIA" TALALMANYOKAT ERTEKESITO VALLALAT. June 16, 1969, No.30442/69. Heading G1C. In an adaptor fitted to a pressure measuring device A, having a pressure sensing wall, a diaphragm 3 is spaced from the pressure sensing wall to define a chamber; between the diaphragm 3 and the pressure sensing wall, containing a pressure transmitting medium, such as a resilient element 4, liquid or gas; and the arrangement is such that the pressure transmitting medium and/or the diaphragm 3 can be replaced by another or others so that the proportion of the pressure acting on the diaphragm and sensed by the pressure sensing wall can be regulated.
Patent GB-669157-A (GB)
Title: Self-tapping screw fastener
IPC: F16B25/00
Filed: 1949-11-28
Abstract: 669,157. Self-tapping screws. PARKERKALON CORPORATION. Nov. 28, 1949 [July 1, 1949], No. 30453/49. Class 83 (iii). A self-tapping screw has a portion of the threads of the tapping portion 2 compressed into the body to form a wide shallow flute 3 whose bottom surface is substantially concentric with the root diameters of the cutting teeth so as to co-operate with the wall of the hole in the engaged material in breaking up chips. The thread - ends at the opposite side of the flute to the substantially radial cutting shoulders 4, rise gradually along an incline 5 tangential to the root diameter. More than one flute may be provided and they may be parallel to the screw axis or inclined to it.
Patent GB-286363-A (GB)
Title: Improvements in or relating to pneumatic tyres and to valves for use therewith
IPC: B60C29/00
Filed: 1926-12-02
Abstract: 286,363. Salerni, P. M. Dec. 2, 1926. Nuts, screwing-up -The inflating valve of a pneumatic type is located on or beyond the outer peripheral surface of the wheel rim, but is housed in or associated with the latter without being positively attached thereto. A tool for securing the valve to the inner tube is shown in the Figure. To insert the valve a rod J<1> is screwed into the inflating socket and the valve member E and washer I are passed through a hole in the tube. The washer J and nut K are then placed in position and the rod mounted in a ratchet spanner K<4> carried by a frame J<2>. By manipulating the handle J<3> and the spanner K<4> the nut K may be firmly secured.
Patent GB-1025505-A (GB)
Title: Coating process
IPC: C03C17/32
Filed: 1964-07-24
Abstract: A method of firmly attaching a plastics coating to a surface of a glass article comprises the steps of distributing fusible particles over a surface of the article, heating the particles and the article to fuse the particles into adherence with the article surface, applying the plastic over the surface in liquid form, and thereafter causing the coating to harden and to become interlocked with the fused particles.  In an example an over-proof glass baking dish is cleaned and preheated, and then a suspension of glass frit particles in aqueous alcohol is sprayed over the interior surface.  The dish is fired to evaporate the liquid and fuse the particles to the surface, cooled, and an aqueous dispersion of P.T.F.E. is sprayed thereon and cured by heating to 750 DEG  F.  Two coats of the polymer, from dispersions of different viscosities, may be applied.  A non-stick surface results.ALSO:A method of firmly attaching a plastics coating to a surface of a glass article comprises the steps of distributing fusible particles over a surface of the article, heating the particles and the article to fuse the particles into adherence with the article surface, applying the plastic over the surface in liquid form, and thereafter causing the coating to harden and to become interlocked with the fused particles.  In an example an ovenproof glass baking dish is cleaned and preheated, and then a suspension of glass frit particles in aqueous alcohol is sprayed over the interior surface.  The dish is fired to evaporate the liquid and fuse the particles to the surface, cooled, and an aqueous dispersion of p.t.f.e. is sprayed thereon and cured by heating to 750 DEG F.  Two coats of the polymer, from dispersions of different viscosities, may be applied.  A non-stick surface results.
Patent GB-1040680-A (GB)
Title: Segmental abrasive wheel
IPC: C22C26/00
Filed: 1965-07-20
Abstract: A segmental diamond abrasive wheel comprises an annular abrasive body portion comprising abrasive particles and an organic bond; embedded in one face of the body portion are spaced diamond abrasive segments, the bond of which is harder than the bond of the body portion and embedded in the opposite face of the body portion are spaced mounting nuts.  The abrasive of the body portion may be fused aluminium oxide or silicon carbide and the bond a resinoid.  The abrasive segments contain 5-10% of diamonds and a bond preferably metal or metalloid. A suitable composition is ..By weight .Wolfram carbide, finely divided.85% .Cobalt, finely divided.8.5% .Diamond abrasive, 20-46 gnt..6.5% The bond may be other carbide-metal compositions, steel, hard bronzes or hard ceramic.
Patent GB-542353-A (GB)
Title: Improvements relating to the catalytic cracking of petroleum oils
IPC: C07C11/02
Filed: 1939-11-24
Abstract: 542,353. Cracking oils. ANGLO - IRANIAN OIL CO., Ltd., DARE, H. F., and HOWES, D. A. Nov. 24, 1939, No. 30767. [Class 32] In processes for cracking hydrocarbon oils in the presence of catalysts comprising naturally occurring siliceous materials, e.g. clays, bentonites, or synthetic alumina - silica compounds of the kind in which the unconverted oil is recycled to the reaction, deterioration of the catalysts is lessened by separating the catalysts from the reaction products and flashing or distilling the latter to remove a high boiling fraction comprising polymers from the volatile products which are then fractionated to recover gases, gasoline and gas oil, and a high boiling residue which is recycled. Oil and catalysts are supplied through lines c, b, to a reaction vessel a heated to 950‹F. The catalysts are discharged through line d separately from the reaction products discharged through line e the latter being flashed in a vessel l to separate volatile fractions from high molecular weight polymers rejected through line n. The vapours pass through line m to tower f where they are fractionated to recover gases, gasoline, and gasoil through lines g, h, i, respectively and a high boiling fraction which is re-circulated through lines j, k.
Patent GB-724893-A (GB)
Title: Improvements relating to centrifugal drying machines
IPC: D06F49/04
Filed: 1953-11-06
Abstract: 724,893. Motor driving arrangements. PREUD' HOMME, A. M. Nov. 6, 1953 [Nov. 6, 1952], No. 30844/53. Class 35. [Also in Group II] In a hydro-extractor driven by a single-phase electric motor 2 a frictional coupling 6 and a centrifugal clutch 5 are provided between the motor shaft 4 and the rotary basket 3. The extractor is started by rotating the basket by hand to turn the motor shaft, and then switching on the motor, the clutch engaging at a predetermined motor speed so that the motor drives the basket.
Patent GB-343067-A (GB)
Title: Improvements in or relating to constructions for absorbing and dissipating sound
IPC: E04B1/84
Filed: 1929-10-11
Abstract: 343,067. Modifying acoustical properties of buildings. JOHNS-MANVILLE CORPORATION, 292, Madison Avenue, New York, U.S.A.-(Assignees of Nash, J. H. ; 146, Merion Avenue, Narberth, Pennsylvania, U.S.A.) Oct. 11, 1929, No. 30893. Convention date, Oct. 12, 1928. [Classes 20 (ii), 20 (iv), and 87 (i).] A wall or like construction or facing for absorbing and dissipating sound in buildings and interiors comprises a plurality of block-like members, mounted on a base and spaced apart to provide air channels therebetween. According to one construction, a base member 11 of sound dissipating material, such as hair felt or jute felt, has mounted thereon an intermediate layer 12 of different or similar material. Secured to the layer 12 is a plurality of facing units 13 of sound-absorbing material. The units 13 are spaced apart by open channels 14, the dimensions of which may be varied to suit the particular acoustic structure to which the units are applied. The exposed area of the blocks is preferably not greater than ten square inches, the channels being about <3>/16" in width and from ¢" to 1¢" in depth. The units 13 are preferably of porous material but may be either rigid and dense or flexible and resilient and are preferably secured to the layer 12 by a waterproof fire-resisting cement. In a modification, particularly adapted for archways and the like, the units are mounted on a flexible backing comprising sheets of fabrics made of vegetable fibres, such as jute, or non-inflammable fibres such as asbestos or the like. In further modifications, the units 13 are hexagonal or rectangular in shape. The blocks may be finished with paint, dyes, ground slate, ceramics or like decoration.
Patent GB-1291796-A (GB)
Title: Photoelectric tracing apparatus
Inventor: KOYANO NOBUSHIGE
IPC: B23Q35/128
Filed: 1971-07-01
Abstract: 1291796 Photo-electric line and edge followers IWATANI SANGYO K K [trading as IWATANI & CO Ltd] and SEIMITSU YOODANKI K K [trading as PRECISION CUTTING MACHINE CO Ltd] 1 July 1971 30967/71 Heading G1A In a photo-electric tracing apparatus which may be used either as an edge follower or a line follower and includes a bridge circuit,  in the edge follower mode the two photo-cells 15, 16 of the sensing head form one arm of the bridge while in the line follower mode the two photo-cells form separate arms thereof, a switching device 17, 18 being provided to effect the changeover.  In the edge follower mode the two photocells may be connected either in series Fig. 3 (not shown) or in parallel Fig. 5 (not shown). When the two photo-cells are of triangular shape- Fig. 1-each one may be provided with a photoinsensitive area (20, 21) Fig. 6 (not shown). Alternatively, the photo-cells may be trapezoidal or rectangularly shaped. In tracing a line Fig. 9 (not shown), if the two photo-cells are not placed sym metrically with respect to the line, the bridge becomes unbalanced to produce a correction signal, thereby altering the movement of the scanning head 8. Similar considerations apply in the edge following mode Fig. 11 (not shown).
Patent GB-666623-A (GB)
Title: Process for the preparation of nitro-aldehydes
Filed: 1949-12-02
Abstract: Nitroaldehydes are made by reacting an alpha - methylene aldehyde CH2=CR.CHO, where R is H or an aliphatic hydrocarbon radicle, with a nitroparaffin having a carbon atom linked to both a hydrogen atom and a nitro group.  Many aldehydes are specified representative being acrolein, alpha isobutyl acrolein and alpha neopentyl acrolein and although acrolein and its alpha-alkyl substitution products are preferred alpha cycloalkyl aldehydes may be used.  Many nitro paraffins are specified, representative being nitromethane, 1-nitropentane and 2-nitro-3-methylbutane and they may contain inert substituents, e.g. aryl, cycloalkyl, alkoxy, acyloxy or halogen groups. Nitro-alkanes in which the carbon atom to which the nitro group is attached is also directly linked to a hydrogen atom and to two carbon atoms are particularly preferred.  Preferably equi-molar quantities are used although an excess of either reactant may be taken and if the nitro-paraffin contains more than one hydrogen atom attached to the nitro containing carbon atom polynitroaldehydes may be produced.  Preferably to avoid polymerization losses a mildly alkaline reaction is effected in the liquid phase with an alkaline catalyst, many being specified, potassium carbonate being especially effective.  An inert solvent may be used although aqueous media should be generally avoided. Many solvents are specified, representative being diethyl ether, ethyl acetate, isopropanol, trimethylene glycol, glycol mono- and di-ethers, dioxane, paraffins, halogenated paraffins and aromatic hydrocarbons.  They are desirably used in quantities of at least about 50 per cent of the combined weight of the reactants. Conventional polymerization inhibitors may be used, many being specified, and quinol is particularly effective. Room temperatures are preferred, although heat may be applied, e.g. 100 DEG  C. is mentioned and a preferred limit of about 60 DEG  C. is quoted.  In examples: 2-nitropropane is reacted in diethyl ether in the presence of potassium carbonate and hydroquinone with (1) methacrolein; and (2) acrolein to yield 2:4-dimethyl-4-nitropentanol and 4-methyl-4-nitropentenal respectively, the 2:4-dinitro-phenylhydrazones of the products also being made and in a Table it is stated that the following aldehydes may be made from the appropriate reactants: 4 - nitro - 4 - methyl-hexanal, -4-methyl-octanal, -2,4-dimethylhexanal, -2,4-dimethyl-octanal, -4-t.-butyl-2-methyl-hexanal, -4-methyl-2-ethyl-pentanal, -4-methyl-2-propyl-decanal, -4-isopropyl-4-isohexyl-2-pentyl-butanal and -4-methyl-2-hexyl-decanal.  In the Specification as open to inspection under Sect. 91 R may be any organic radicle.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1420392-A (GB)
Title: Aqueous starch adhesive
IPC: C09J103/02
Filed: 1973-06-29
Abstract: 1420392 Paper adhesives SCHOLTENHONIG RESEARCH BV 28 June 1974 [29 June 1973] 31016/73 Heading C3U An aqueous, film-forming and non-migrating adhesive comprises an aqueous starch suspension in which more than 80 weight per cent of the total starch in the adhesive is in the form of separate fragments from granules crosslinked by bi- or polyfunctional agents containing functional groups which react with at least two available hydroxyl groups of the starch, which have a swelling power of 5-15, the weight average particle size of the swollen fragments being 1-10 micron and less than 15% of the granule fragments are larger than 10 micron. The composition may be obtained by cross-linking starch in granular form with a bi- or polyfunctional reagent and then subjecting the starch granules in the presence of not more than 15-30% moisture to simultaneous heat, pressure and fragmenting action in an extruder; expelling the starch derivative through a die into a region of ambient temperature and pressure thereby effecting a sudden release of steam; milling the puffed wheat product and mixing with hot or cold water to produce the aqueous suspension.
Patent GB-382759-A (GB)
Title: Improvements in or relating to the manufacture of new complex metallic organic compounds
Filed: 1931-11-10
Abstract: Complex metallic compounds are prepared by treating glucosaminic acid or its salts with compounds of iron, cobalt, nickel, manganese, antimony, or vanadium.  The products, which are therapeutically useful, may be treated with inorganic or organic bases, e.g. sodium, potassium, lithium, magnesium, and calcium bases, methylamine, dimethylamine, diethylamine, ethylene diamine, choline, quaternary ammonium bases, aniline, dimethylaniline, benzylamine, phenylethylamine, p-hydroxyphenyl-ethylamine, pyridine, quinoline, hexahydroaniline, piperazine, piperidine, putrescine, and alkaloids such as quinine, emetine, morphine, and strychnine.  Examples are given of the interaction of (1) glucosaminic acid and nickel carbonate, followed by treatment with sodium hydroxide; (2) glucosaminic acid and cobalt carbonate; (3) glucosaminic acid, ferric chloride, and diethylamine in water, with precipitation of the iron glucosaminate by means of alcohol; (4) glucosaminic acid and antimony trihydroxide to give the trivalent-antimony compound; (5) glucosaminic acid and tetra-antimonic acid, prepared by hydrolysing antimony pentachloride with ice-water, to form the pentavalent-antimony compound; (6) pentavalent-antimony glucosaminate and sodium, lithium or potassium hydroxide, calcium carbonate or magnesium oxide; (7) pentavalent-antimony glucosaminate and quinine, emetine, morphine, strychnine, diethylamine, aniline, phenylethylamine or its p-hydroxy derivative, pyridine or piperazine; (8) cobalt glucosaminate and diethylamine.  The Specification as open to inspection under Sect. 91 (3) (a) describes the use of heavy metals or their compounds, excluding copper, silver, and zinc, and specifically refers to cadmium, mercury, and lead.  This subject-matter does not appear in the Specification as accepted.ALSO:Complex metallic compounds are prepared by treating glucosaminic acid or its salts with compounds of iron, cobalt, nickel, manganese, antimony or vanadium.  The products may be treated with inorganic bases, e.g. sodium, potassium, lithium, magnesium, and calcium bases.  Examples are included of the interaction of (1) glucosaminic acid and nickel carbonate, followed by treatment with sodium hydroxide; (2) glucosaminic acid and cobalt carbonate; (3) glucosaminic acid, ferric chloride and diethylamine in water, with precipitation of the iron glucosaminate by means of alcohol; (4) glucosaminic acid and antimony trihydroxide to give the trivalent-antimony compound; (5) glucosaminic acid and tetra-antimonic acid, prepared by hydrolysing antimony pentachloride with ice-water, to form the pentavalent antimony compound; (6) pentavalent-antimony glucosaminate and sodium, lithium or potassium hydroxide, calcium carbonate or magnesium oxide.  The Specification as open to inspection under Sect. 91 (3) (a) describes the use of heavy metals and their compounds, excluding copper, silver, and zinc, and specifically refers to cadmium, mercury, and lead.  This subject-matter does not appear in the Specification as accepted.
Patent GB-723401-A (GB)
Title: Improvements in conveyors
Inventor: DUNCAN ANGUS WELLESLEY
IPC: B65G19/28
Filed: 1951-04-04
Abstract: 723,401. Endless conveyers. MINING ENGINEERING CO., Ltd. March 20, 1952 [April 4, 1951], No. 31160/53. Divided out of 723,313. Drawings to Specification. Class 78 (1). A sectional conveyer structure comprises a base having vertical side flanges to which are attached by interengaging pegs and recesses top side members of angle section with one flange horizontal and resting on the top edges of the side flanges. The embodiment disclosed is identical with that disclosed in the original Specification 723,313.
Patent GB-609035-A (GB)
Title: Improved pressure-welding process, and articles produced thereby
IPC: B23K11/20
Filed: 1945-11-20
Abstract: Vacuum tubes having bulbs partly of metal such as copper and partly of glass have an intermediate ring of an alloy of 54 per cent iron, 29 per cent nickel and 17 per cent cobalt connecting the parts.
Patent GB-967920-A (GB)
Title: Addressing machine
IPC: B41L47/18
Filed: 1962-08-15
Abstract: 967,920. Addressing - machines; feeding address plates. RENA BUROMASCHINENFABRIK G.m.b.H. Aug. 15, 1962 [Aug. 19, 1961], No. 31233/62. Headings B6B, B6C and B6D. A hectographic addressing-machine for printing from address plates comprises a reciprocating impression roller which co-operates with a plane counter-pressure element, and also serves as a damping roller to supply moistening liquid to the material to be printed. Address plates D, Fig. 5, are fed in succession along a guide path 4 towards the left, to a printing position below the counter-pressure element 14, in such a way that there is a plate in printing position only during the second part of each machine cycle. In the initial position, the impression and damping roller 12, Fig. 2, is in contact with a constantly rotating roller 19 receiving liquid from a roller 20. The roller 12 is then moved by a crank mechanism 17 up an incline 23 and along guide rails 14<SP>1</SP> so as to contact and moisten a sheet 11 to be printed on. A hectographic address plate D is then moved into position below the sheet 11 and the roller 12 is moved back to its initial position to produce the impression. The counter-pressure element 14, Figs. 2, 4 and 5, is raised and lowered within a housing 9 by a toggle mechanism 32 actuated by a cam disc 40, being lowered into operative position during the moistening and the impression strokes of the roller 12, and raised to allow arrival and removal of the plates. Printing-surfaces.-The address plates are provided with slots 44 near their leading edges. Feeding address plates.-The slots 44 are engaged by dogs 45, Figs. 5 and 8, on a member 46 secured to a substantially square member 48 pivoted on an axle 49 mounted in a U-stirrup 51 pivoted on an axle 52. During each machine cycle, the stirrup 51 is oscillated once in each direction by a lever 57 on a drive shaft 58. In normal operation, rollers 59 run on upper guide strips 60 during the leftward stroke, thus feeding a plate D from the bottom of a supply magazine, whereby another plate further forwards is moved into printing position. At the end of the stroke, leaf springs 54 acting on the member 48 force the rollers 59 downwards on to lower guide strips 61 extending further to the left and to the right than the strips 60. The dogs 45 are thus disengaged from the slots 44 for the return stroke, at the end of which the springs force the dogs up into the slots of the next plate. To prevent the feed of a plate, a conical button is pressed to move the strip 60 to the right a distance a to prevent raising of the dogs. A second stirrup and dog arrangement feeds plates from printing position. In this case, shifting of the upper strips to the left results in a plate being returned to printing position for repeat printing, the plate feed being prevented at this time as described above.