baber/WOPTO huggingface dataset:
Patent GB-998138-A (GB)
Title: Three-phase voltage regulator
IPC: G05F1/32
Filed: 1962-02-23
Abstract: 998,138. Automatic voltage regulation. HIROSHI KOBAYASHI, and E.MIYAZAWA. Feb. 23, 1962 [March 1, 1961], No. 7214/62. Heading G3X. A 3 phase inherent voltage regulating circuit comprises an iron coned linear reactor 1-3 in each phase conductor, and three saturable reactors 4-6 each having a primory winding 4a-6a in parallel with a capacitor 7-9 forming a circuit resonant at the supply frequency connected in star to taps on the linear reactors. A secondary winding 4b-6b connected in delta eliminates 3rd harmonic currents, or alternatively the primary windings may be connected in delta. A number of connecting arrangements are given in the Specification including same which give voltage transformation.
Patent GB-348267-A (GB)
Title: Improvements in or relating to conveyors
IPC: B65G21/14
Filed: 1930-03-05
Abstract: 348,267. Endless belt conveyers. TURNBULL, F., Back Chapman Street, Heaton Junction, Newcastle-on-Tyne. March 5, 1930, No. 7269. [Class 78 (i).] An endless band h is arranged to form two telescopic operative portions at different levels. The lower portion is carried by rollers a and pulleys b,c housed in a framework d which travels longitudinally on transverse rollers carried by brackets f depending below the framework g of the upper portion. Rollers j and pulleys k, m, p, q are mounted on the upper framework. A shoot r directs the material from the upper portion on to the lower.
Patent GB-1287585-A (GB)
Title: Confectionery processing
Inventor: GREEVES THOMAS WILLIAM
IPC: B26F3/00
Filed: 1969-02-11
Abstract: 1287585 Cutting strips of biscuits or confectionery product CADBURY BROS Ltd 30 Jan 1970 [11 Feb 1969] 7272/69 Heading A2A [Also in Division B5] A strip of confectionery product, e.g. caramel, or biscuit is cut into pieces by impingement of a jet of fluid at a pressure sufficient to cut through the strip, and pieces of required shape are formed by moving the jet relatively to the strip. The apparatus shown comprises a pair of endless belts 10, 11 driven by pulleys 16 so that their upper, operative runs 12 move in the same direction, and providing a gap where they pass over supports 13 carried by a movable base unit 14. The belts also run over pulleys 15 carried by the base unit and over tensioners 17. A head 18 has a row of equi-spaced orifices 19 for high pressure fluid, e.g. at 12,000 p.s.i., positioned over the gap and is mounted on the base unit so as to be movable at right angles to the direction of movement of the belts. The spacing of the outermost orifices is equal to the width of the strip to be cut less the width of one piece to be cut therefrom. In operation, the head is positioned initially so that one of the orifices coincides with an edge of the strip and the base unit is moved against the direction of movement of the belts to make longitudinal cuts in the strip, after which the base unit is moved in the same direction and at the same speed as the belts whilst the head is moved laterally to make transverse cuts equal in number to the number of orifices. The base unit is then moved against the direction of movement of the belts to make further longitudinal cuts, after which the cycle is completed by lateral movement of the head back to its starting position whilst the base unit moves in the same direction as the belts. The cutting fluid, generally a liquid, may be water or a fat which forms one of the constituents of the strip, and a tray 20 collects fluid from the orifices and particles of strip. The belt 11 may be formed from canvas etc. and the belt 10 from chain.
Patent GB-622516-A (GB)
Title: Improvements in and relating to methods of preparing hydrocarbon-substituted halogenosilanes
IPC: C07F7/16
Filed: 1947-03-17
Abstract: Hydrocarbon-substituted halogensilones are prepared by reacting a hydrocarbon halide and silicon at an elevated temperature in the presence of a halogen, e.g. a gaseous mixture of the halogen and hydrocarbon halide may be employed.  The halogen may be chlorine, bromine or fluorine.  Suitable hydrocarbon halides are methyl-, ethyl-, propyl-, or phenylchlorides, ethyl bromide, methylene chloride, ethylene bromide and dichlorbenzene.  The reaction may be effected in the presence of a metallic catalyst for the hydrocarbon halide and silicon reaction, e.g. copper, nickel, tin, antimony, manganese, silver or titanium.  The preferred reaction temperature range is 200 DEG  to 500 DEG  C. or 250 DEG  to 400 DEG  C.  Best results are obtained when the halogen comprises from 5 to 35 per cent by volume of the total gaseous mixture of the halogen and hydrocarbon halide.  In an example, a mixture of methyl chloride and chlorine are passed over heated silicon to yield trimethylchloro-, dimethyldichloro- and methyl-trichloro-silanes. Specification 575,667 is referred to.
Patent GB-415963-A (GB)
Title: Improvements in or relating to the dyeing or bleaching of felt hat bodies
IPC: D06P1/00
Filed: 1934-03-08
Abstract: In dyeing or bleaching felt hat bodies, the openings of the bodies are sealed, as by stitching.  Each body thus encloses a volume of air which upon immersion of the body in hot dye liquor prevents the dye from penetrating to the inside surface.  By dyeing the inside and outside surface to a light shade and then carrying out the process, the outside only may be dyed a deeper colour.  Or the outside surface of the body may be dyed according to the invention and the body turned inside out, resewn and the inside surface dyed a different colour.
Patent GB-1527342-A (GB)
Title: Microswitches
IPC: H01H9/02
Filed: 1977-02-22
Abstract: 1527342 Photo-electric switch STANDARD TELEPHONES & CABLES Ltd 22 Feb 1977 7362/77 Heading G1A [Also in Division H1] To avoid spurious switching due to contact bounce, a micro-switch, in which a manuallyoperable push-button 2 snaps a bowed strip-like spring member 4 to reversed curvature by acting on a point between its centre and one end, has an extension 13 on the other end of spring 4 which is moved by the snap action to act as a shutter between a light-emitting diode 10 and a phototransistor 11 whose response controls a Schmitt trigger circuit mounted on a thick film substrate 12 and which provides the micro-switch output via cable 8.
Patent GB-557788-A (GB)
Title: Improvements in ventilators for crucible and like furnaces
IPC: F27B14/08
Filed: 1942-06-01
Abstract: 557,788. Chimneys or ventilators. CUMMING & CO., Ltd., W., and CAYZER, J. R. June 1, 1942, No. 7377. [Class 25] A chimney or ventilating shaft for carrying away gases in the neighbourhood of the gas discharge opening of a crucible furnace comprises a vertical trunk 10 extending through the roof B of the building enclosing the crucible furnace C and secured to the wall A of the building, an inwardly curved trunk 12 and a downwardly curved trunk 11 having a hood 11a arranged above the furnace and pivoted at 14 to the trunk 12. The trunk 11 may be raised by cables 15 having counterweights 17 to an inoperative position shown in dotted lines so that it is not an obstruction to the furnace operators. The upper portion 10 may extend through the side wall A as shown at 10a and 10b. In all cases a hood 10c covers the discharge outlet.
Patent GB-434924-A (GB)
Title: Improvements in or relating to latch bolt and like fastenings
IPC: E05C1/04
Filed: 1935-03-11
Abstract: 434,924. Sliding - bolt fastenings. HARRISON (BIRMINGHAM), Ltd., and BURGESS, E. C.,Highgate Street, Birmingham. March 11, 1935, No. 7479. [Class 44] In a fastening of the kind comprising a bolt 7 sliding in a fixed housing 6 with a friction spring arranged between them, the ends 22 of the spring 9 are mounted in recesses &c. 21 in the housing or bolt so that the spring is capable of movement relative to the member on which it is mounted, the spring being bowed or shaped to engage resiliently with the member between which and the spring relative movement occurs. The knob of the bolt has a threaded shank 12 engaging a threaded flared aperture in the bolt and formed with a head 15 sliding on a limiting slot 14 in the housing 6. The bolt may be completely withdrawn from the housing by turning the knob until the head 15 enters the flared recess in the bolt, and then sliding the bolt.
Patent GB-785789-A (GB)
Title: Solvents and softeners for polyesters of terephthalic acid with aliphatic dihydroxy-compounds
IPC: C08J3/09
Filed: 1954-03-15
Abstract: A solvent or softener for a polyester of terephalic acid and an aliphatic dihydroxy compound is a substance of formula R-X-OH or R-X-NH2 where X represents an aliphatic hydrocarbon radical containing 1-4 carbon atoms and R represents an aromatic or partially hydrogenated aromatic residue (e.g. derived from benzene, cyclohexadiene, naphthalene, tetrahydronaphthene or diphenyl).  The substances may contain 2 or 3 of the groups -X-OH or -X-NH2 and R may contain further substituents on the aromatic nucleus, e.g. hydroxyl, lower alkyl, lower alkoxy, nitro keto or aldehyde groups or halogen atoms.  Aromatic or hydrogenated aromatic hydrocarbons may be added as diluents (e.g. naphthalene, diphenyl, tetrahydronaphthalene, decahydronaphthalene, xylene, methyl-naphthalene or mesitylene).  The solutions are especially suitable for the manufacture of films.  A table discloses solutions of polyethylene terephthalate in (1) benzyl alcohol; (2) 2-phenyl-ethanol-1; (3) 1-phenyl-ethanol-1; (4) 3-phenyl-propanol-1; (5) 4-chlorobenzyl alcohol; (6) 4-methylbenzyl alcohol; (7) 3-nitrobenzyl alcohol; (8) benzylamine; (9) 2-phenylethylamine-1; (10) benzyl alcohol + chlorobenzene; (11) benzyl alcohol + benzoic acid; (12) benzyl alcohol + benzamide; (13) benzyl alcohol + benzaldehyde; (14) o-xylene-glycol.  Specifications 772,600 and 776,157 are referred to.
Patent GB-792471-A (GB)
Title: Process for preparing substituted hydrazines
IPC: C08K5/24
Filed: 1955-03-15
Abstract: A process for preparing an organic substituted hydrazine is characterized by intimately mixing chloramine in the presence of ammonia under anhydrous conditions with a primary or secondary amine or an imine, the amine or imine being liquid under the conditions of the reaction, maintaining in said mixture an excess of base at least sufficient to neutralize the hydrogen chloride released by the reaction and separating the resulting substituted hydrazine from the reaction mixture.  The starting material may be an acyclic, alicyclic or heterocyclic amine, acetophenone imine or benzophenone imine.  The process may be carried out at low temperatures or elevated pressure to avoid loss of chloramine or the chloramine-ammonia mixture may be passed into the amine or imine under atmospheric conditions with recycling of unreacted gases.  Solvents mentioned for use in the process include carbon tetrachloride, liquid paraffins, cycloparaffins and liquid aromatics.  The use of an alkali metal alcoholate containing an amino or imino group as starting material is mentioned, though the starting materials employed are preferably free from radicals which react with the chloramine more readily than the hydrogen attached to the amino- or iminonitrogen.  In examples: cyclohexyl hydrazine is obtained by reacting a chloramine-ammonia mixture with cyclohexylamine and the product is converted to the hydrochloride and reacted with benzaldehyde to form benzylidene cyclohexylhydrazone (I), piperylhydrazine is similarly obtained from piperidine and converted to derivatives (II), normal butyl hydrazine is similarly obtained from n-butylamine, the desired product being liberated from the hydrochloride by the addition of an ammonia solution of metallic sodium or by adding a stronger or less volatile base and converted to the oxalate (III); methyl hydrazine is prepared by passing a chloramine-ammonia mixture into methylamine at -25 DEG C. and the product is converted to tribenzal bis-methyl hydrazine (IV); phenyl hydrazine, phenylene diamines and chloranilines are obtained by reacting a chloramineammonia mixture with aniline and are converted to hydrochlorides, benzylidene and benzoyl derivatives. The chloramine used in the process is produced by the reaction of gaseous chlorine and ammonia under anhydrous conditions.
Patent GB-759767-A (GB)
Title: Improvements in or relating to a method of preparing hydrogen peroxide
IPC: C01B15/032
Filed: 1953-03-19
Abstract: In the production of hydrogen peroxide togther with barium carbonate by the interaction of an aqueous slurry of barium peroxide and carbon dioxide, the temperature of the solution is maintained below 30 DEG C., preferably below 20 DEG C., for at least the last 25 per cent of the reaction period and the barium carbonate is substantially completely removed from the solution within two hours of the commencement of the reaction.  The process is preferably carried out in a cyclic manner wherein barium carbonate is calcined to produce barium oxide, the barium oxide is reacted with oxygen to produce barium peroxide and the barium peroxide is reacted with carbon dioxide to produce hydrogen peroxide together with barium carbonate which is recycled.  The barium peroxide preferably contains less than 10 per cent more preferably less than 5 per cent of barium oxide and/or barium hydroxide.  The barium peroxide slurry preferably contains at least 20 per cent, more preferably 30 per cent, of solids.  The barium peroxide slurry is preferably allowed to stand for at least 5 minutes, more preferably 15 to 30 minutes before carbonation.  Carbonation is preferably completed within 30 minutes to one hour.  Carbonation may be carried out at 5-15 atoms.  Gaseous carbon dioxide may be introduced into a preformed slurry of barium peroxide or the slurry may be introduced into a solution of carbon dioxide under pressure.  Sufficient carbon dioxide is preferably employed to produce barium carbonate containing less than 10 per cent of barium oxide and/or hydroxide.  Specifications 294,265 [Class 1(ii)], 759,765 759,766 and 759,821 are referred to.
Patent GB-435035-A (GB)
Title: Improvements in or relating to electrically-heated cabinets particularly for use in sterilising
IPC: A61L2/04
Filed: 1934-03-10
Abstract: 435,035. Electric resistance ovens. MITCHELL, W. F., 123, George Street, Edinburgh. March 10, 1934, No. 7627. [Class 39 (iii)] A sterilizing cabinet for milk bottles has walls 1, 2 and doors incorporating thermal insulation, and is provided with shelves 3 for supporting the bottles and heated by elements 4. A thermometer 5 and a thermostat are also provided. Reference has been directed by the Comptroller to Specifications 25962/11, 103,476, 117,996, 118,423, [all in Class 39 (iii)], and 411,670.
Patent GB-940785-A (GB)
Title: Improvements in comb cases
Inventor: EASTHAM KENNETH JOSEPH
IPC: A45D24/08
Filed: 1961-03-02
Abstract: 940,785. Labelling. K. J. EASTHAM Ltd. March 2, 1961, No. 7683/61. Heading B8F. [Also in Division A4] A case for a comb, which has a name label on the stock, comprises similar pieces 1, 3 of a flexible sheet material joined together peripherally except for an access opening 11, the piece 1 being apertured at 12 so that the name is visible. The pieces are preferably of flexible plastic, e.g. polyvinyl chloride, heat and pressure sealed 10, a window 13 of transparent plastic being heat sealed in the aperture. In modifications the access opening is on one of the longer sides of the case, the case is tapered towards one end so that a similarly-shaped comb can be fully inserted only in the position in which the name and the aperture 12 are coincident, or, as shown in Fig. 3, an additional aperture 15 with a transparent plastic window 16, is provided in the piece 3 so that the name is visible in whichever position the comb is inserted in the case.
Patent GB-547349-A (GB)
Title: Improvements relating to guards for tool presses
IPC: F16P3/04
Filed: 1941-06-18
Abstract: 547,349. Machinery guards. RUBERY OWEN & CO., Ltd., and SHORT, W. C. C. June 18, 1941, No. 7685. [Class 80 (iv)] A tool press has a guard movable into guarding position before the press can operate and returned just before the tools act on the work. In the form described, the guard 18, Figs 2: and 3, is carried by rods 19, and hinged at the lower ends of its sides to pivoted arms 23. Each rod 19 has a shaped head 41, adapted to be engaged by a bellcrank 42 on a shaft 35 and thereby held raised. Depression of a pedal 27 acts through a Bowden connection 28 a one-way clutch and arms 33, 34 to rock the shaft 35 so as to release the guard which falls until member 44 engages a stop 46, and during its fall withdraws a bolt 51 linked to a bracket 48 on a rod 19, so that when the guard is in its operative position, the end of the bolt is out of engagement with a movable brake member 16. Depression of a pedal 26 then causes endwise movement of a bar 54, Fig 4, which acts through a member 56 to engage the press clutch and release the brake 16. The main shaft 58 carries an adjustable abutment 59, which engages the member 44 at a selected moment during the descent of the tool 12, and causes the guard to be raised to its upper position, where it is again held by the bellcranks 42, a ramp movable with the tool having caused the separation of the halves of the one-way clutch and allowed the shaft 35 to return to its initial position. When the tool 12 has again reached its upper position, a hammer arm 65 on a shaft 66 raises'the free end of the bar 54 to cause the press clutch to be released and the brake 16 engaged. In order to allow the press to be turned by hand for " setting-up," the arm 65 is so mounted that it may be moved into an inoperative position.
Patent GB-313220-A (GB)
Title: Improvements in or relating to manually operable luffing mechanism for use in connection with davits and the like
IPC: B63B23/04
Filed: 1928-03-13
Abstract: 313,220. Welin, A. March 13, 1928. Davits.-In a luffing davit the velocity ratio of the manually operable luffing mechanism is arranged to be varied independently of the winding-handle. The davit 29 is luffed by the threaded rod 27 engaging with a nut carried by the tube 26, which is revolved by the crank attached to the shaft 1. A sleeve 3 is keyed to this shaft so as to be capable of independent relative longitudinal movement controlled by the pin 11 engaging with the groove 10, but rotary movements of the shaft 1 are transmitted to the sleeve. When the handle 15 is placed in the position shown in Fig. 3 the sleeve slides from left to right, the teeth 5 on the sleeve engage similar teeth 7 on the pinion 9, and thus motion from the shaft 1 is transmitted by the wheel train 9, 16, 18, 19 and 20 to the shaft 21 which is directly attached to the tube 26. Similarly when the handle 15 is in the reverse position motion from the shaft 1 is transmitted by the train 8, 17, 19 and 20, and since the pinions 9 and 17 are of different diameters, two velocity ratios are obtained. In a modification one pinion is directly attached to the sleeve.
Patent GB-784336-A (GB)
Title: Process for producing embossed prints and printing compositions therefor
IPC: D06Q1/08
Filed: 1955-03-16
Abstract: Embossed prints are produced on fibrous material, which has been treated with a hardenable synthetic resin precondensate, by applying to the material by means of a heated embossing roller a composition containing a pigment, a metal drier and a resin which contains more than 3 unsaturated groups in the molecule and undergoes oxidative drying in the presence of the drier.  Suitable resins are allyl ethers of polymethylol melamines, unsaturated fatty acid-modified alkyds, and similarly modified glycidyl ethers.  Specified driers are lead, calcium and cobalt naphthenates.  Examples of pigments are titanium oxide, carbon black, lead chromates, azo dyestuffs, indigo, indanthrone and copper phthalocyanine and its chlorinated derivative. Other substances which are added include drying oils, chlorinated paraffin wax and a glycerine ester of hydrogenated colophony. The fabric, e.g. of cotton, linen, artificial silk, regenerated cellulose or polyamide fibres, is pre-treated preferably with an aminoplast resin composition, examples of which are given.  The embossing roller is heated to 150-220 DEG  C. by an open flame or by electrical means, and the printing composition may be applied to it by an intermediate roller.  After printing, the fabric is heated, e.g. at 140-160 DEG C., while hung up, and may finally be washed.  Specification 748,016 is referred to.ALSO:A printing composition which is applied to fibrous material by a heated embossing roller coacting with a complementary negative roller comprises a pigment, a metal drier and a resin which contains more than 3 unsaturated groups in the molecule and undergoes oxidative drying in the presence of the drier. Suitable resins are allyl ethers of polymethylol compounds of melamine which contain, for example, 4-6 allyl ether groups in the molecule; unsaturated fatty acid-, e.g. linseed oil-modified alkyds; and unsaturated fatty acid-modified glycidyl ethers, particularly those prepared from epichlorhydrin or glycerine dichlorhydrin with a polyhydric alcohol or phenol.  Specified driers are lead, calcium and cobalt naphthenates.  Examples of pigments are titanium oxide, carbon black, lead chromates, azo dyestuffs, e.g. derived from diazo compounds and 2,3-oxynaphthoic acid arylides, indigo, indanthrone, copper phthalocyanine and highly chlorinated copper phthalocyanine. Other substances which are added include drying oils, e.g. linseed and wood oils, chlorinated paraffin wax, and, for making a pigment preparation, a glycerine ester of hydrogenated colophony. Specification 748,016 is referred to.
Patent GB-1477923-A (GB)
Title: Brick laying device
IPC: E04G21/20
Filed: 1975-02-17
Abstract: 1477923 Bricklayer's guide R D WATT and B W G ORR 17 Feb 1975 [20 Feb 1974] 7759/74 Heading E1S A bricklayer's guide comprises a frame for placing on a course of bricks to define a shallow trough for laying mortar therein, to obtain an even layer, the frame comprising two parallel spaced longitudinal members 11, 12 or 111, 112, at least one of which defines a right-angle section, and spacer members 13, 14 or 113, 114 therebetween; when laid on a course of bricks, one arm of the rightangle section extends downwardly outside the bricks, and the other arm extends inwardly over the bricks to define an edge of the trough, and the spacer members lie above the plane of the underside of the inner arm. Both longitudinal members may be of rightangle section, and may assist in aligning the bricks. The longitudinal members 111, 112 are hollow with fins 122 to define the rightangle section, and the arms of the U-section spacers 113, 114 fit in the ends thereof. A frame for a corner of a building is generally L-shaped in plan, with its arms constructed as defined above.
Patent GB-115711-A (GB)
Title: Improvements in and connected with Jointing or Packing.
Inventor: CURTIS ARTHUR HERBERT
IPC: F16J15/10
Filed: 1917-05-31
Abstract: 115,711. Curtis, A. H., and Williams, E. T. May 31, 1917. Joint-making packing .- Packing of the type in which the edge of the part to be packed enters a channel containing a rubber or other soft packing- strip is so arranged that the packing-strip is caused to grip the sides of the part to be packed. In the form shown in Fig. 9, the channel 1 is of dovetail section and contains a grooved rubber packing 3. A space 4 is left between the packing and the channel by forming either the packing or the channel with a concave base, so that the end pressure of the part 5 causes the sides of the packing-strip to approach one another. In a modification the space 4 is dispensed with. Alternatively, the channel may be of semicircular or U section, and the grooved packing-strip may be replaced by a flat-strip bent double. The sides of the channel may be extended, as shown, to form guides for the part 5. The packing is stated to be applicable for the housings of electric switch gear, water-tight doors, portholes, packing-cases, cupboards, gas-tight fittings, valves, &c.