baber/WOPTO huggingface dataset:
Patent GB-579270-A (GB)
Title: Improvements in apparatus of which a hpmv electric discharge device is a part
IPC: H01J61/52
Filed: 1941-08-08
Abstract: 579,270. Metal vapour lamps. GENERAL ELECTRIC CO., Ltd., and FRANCIS, V. J. Aug. 8, 1941, No. 10091. Addition to 518,782. [Class 39 (i)] Air or gas is blown over the surface of a highpressure metal vapour electric discharge lamp to cool it, and passes through a narrow gap less than 4 millimeters wide between the sheaths 8, 9 and the envelope 1, the desired width being maintained by distance pieces 12, 13. A single sheath may be used with a transparent portion for the passage of light. Specification 476,775 also is referred to.
Patent GB-1217441-A (GB)
Title: Injection molding machine with pressure balanced drive shaft
IPC: B29C45/50
Filed: 1969-02-25
Abstract: 1,217,441. Injection moulding. CINCINNATI MILACRON Inc. 25 Feb., 1969 [18 April, 1968], No. 10132/69. Heading B5A. An injection moulding machine includes a plasticizing screw 54 of the rotary and axially reciprocating type connected at its rear end to a piston 254 slidable within a cylinder 86 supporting a motor 92 incorporating a drive shaft 210. A splined end 228 of the shaft extends into an axial piston bore 272 and engages a drive spline 276 secured to the piston; the shaft is also splined at 166 to engage the motor drive. Fig. 2 shows the screw and piston in its rearward position after a shot of moulding material has built up in front of the screw which incorporates a one-way valve 68. In this position the motor is automtically switched off, and pressure fluid is fed to passages 140, 142 to force the piston and screw forwardly to effect the injection stroke causing material to pass into a mould 16 carried by a platen 12 connected to the base of the machine by an hydraulic cylinder 30 and ram 32. The injection stroke is limited in its forward direction by the engagement of the piston surface 263 with a stop 296 rearward movement of the piston is controlled by the operation of a switch 45 adjustable along a bar 43 and actuated by a member 51 slidable along a bar 47 and engaged by a cam 290 on the piston. The supply of pressure fluid to the passages 140, 142 causes fluid to flow into the bore 272, and in order to prevent fluid pressure acting on the end 231 of the drive shaft and causing axial forces thereon, conduit means lead from the bore 272 to the face 239 of a flange 232 on the shaft. The area of the face 239 is equated with that of the end 231 to produce a pressure balance. The conduit means includes the splines 227, 280, conduit 278, cavity 265 and conduits 144 and 161. With the motor 92 stopped, the piston may be forced rearwardly by pressure fluid supplied to passages 106, 108. In the modification of Fig. 3, the areas 231 and 239 are interconnected by a conduit 246. In further modifications, Figs. 4 and 5, not shown the flange 232 is located to the left of a bearing 198 and a locknut 218, Fig. 2, to the right.
Patent GB-1421141-A (GB)
Title: Apparatus for handling molten glass
IPC: C03B37/095
Filed: 1972-03-03
Abstract: 1421141 Glass fibre manufacture ENGELHARD INDUSTRIES Ltd and TBA INDUSTRIAL PRODUCTS Ltd 2 March 1973 [3 March 1972] 10175/72 Heading CIM [Also in Division C7] An apparatus for handling molten glass has at least those parts, which in use are in contact with the molten glass, made of, or coated with, an alloy consisting of: Pt over 30% less than 89%; Rh over 1% less than 25%; and Pd over 10% less than 69% wherein when the Pt content is less than, or equal to, 50% the Rh content is less than 10%. The apparatus may be a bushing for glass fibre manufacture and parts thereof not in contact with the glass may be made of Pd, a Pd-Rh alloy or a Pd-Rh alloy containing one or more other Pt-group metals.
Patent GB-117483-A (GB)
Title: Improvements in or relating to the Separation of Magnesium from Compounds and Mixtures of Magnesium and Calcium Carbonates.
Inventor: ANNABLE HENRY WILLIAM COUPE
IPC: C01F5/30
Filed: 1917-07-13
Abstract: 117,483. Annable, H. W. C. July 13, 1917. Magnesium chloride and carbonate. - Magnesium is separated from a mixture of magnesium and calcium carbonates, such as decomposed dolomite, by heating the said mixed carbonates, suspended in water, under pressure with the requisite amount of calcium, barium, or strontium chloride. The magnesium chloride thus formed may then be precipitated as carbonate or as oxide which latter may be further treated in suspension with carbon dioxide to produce carbonate or hydrated carbonate of magnesium. According to the Provisional Specification, the heating with an alkaline earth chloride need not be conducted under pressure.
Patent GB-481337-A (GB)
Title: Improvements in resilient bushes or bearings
IPC: B60G11/12
Filed: 1937-04-10
Abstract: 481,337. Hinges. GOLDSCHMIDT, M. April 10, 1937, No. 10249. Convention date, April 11, 1936. [Class 65 (ii)] A resilient bearing, particularly for vehicle springs, comprises a layer of rubber 3, thicker at its centre than its ends, is secured by vulcanization or by an adhesive between two thin metal sleeves 1, 2 both of which are of greater diameter at the centre than at the ends, so that the end portions of the rubber resist axial loads. In the arrangement shown, the inner sleeve 1 is clamped to a bracket 6 by a bolt and nut, while the outer sleeve 2 is pressed into the eye 7 of a spring and is secured against axial movement, and if required also against rotation, therein by a ring 8 having tongues 9 stamped out at its edges and bent to engage the spring eye 7 and the sleeve 2. The Specification as open to inspection under Sect. 91 also states that the exposed ends of the rubber bush may be coated with oil-resisting rubber to protect the bush from oil and dirt. This subject-matter does not appear in the Specification as accepted.
Patent GB-1386101-A (GB)
Title: Watertight watch
IPC: G04B39/02
Filed: 1972-03-06
Abstract: 1386101 Watch cases OMEGA LOUIS BRANDT & FRERE S A 19 Jan 1973 [6 March 1972] 10309/72 Heading G3T A case bezel 6 is sealed to a glass 3 and a body 2 with integral back by means of a gasket 7 which is compressed radially between an inner surface 10 of the bezel and outer surfaces 8, 9 of the glass and body respectively, removal of the bezel being facilitated by holes 11 in the body 2 so that an under surface 12 of the bezel can be engaged by a tool. The glass is snap-fitted in the bezel and presses on a ring 5 and thus on a dial 4 to hold movement 1 axially. The dial may be dished Figs. 2 and 5 (not shown), and the gasket 7 of stepped or L-shaped form Figs. 4 and 5 (not shown). An O-ring (17), Fig. 3 (not shown), may be fitted between the glass and the body 2. The tool for disassembly may be an anvil with projections to suit the holes 11, or the latter may be threaded to receive extractor screws.
Patent GB-493770-A (GB)
Title: A process of dying leather
IPC: D06P3/32
Filed: 1937-04-12
Abstract: Leather is dyed brown shades with water-soluble monoazo dyestuffs obtainable by coupling a diazo compound of an amine of the benzene series, containing at least once the group -CH2.SO3H attached directly to the nucleus, with 2-amino-8-naphthol-6-sulphonic acid or an N-alkyl or N-aryl derivative thereof.  In examples: (1) chrome - tanned calf is neutralized, rinsed and dyed with the dyestuff 4-aminobenzylsulphonic acid --> (alkaline) 2 : 8 : 6-acid (sodium salt), after which formic acid is added and the leather is greased and finished; (2) chrome-tanned goat skin is deacidified and dyed with the dyestuff 4-amino-benzylsulphonic acid --> (alkaline) N-methyl-2 : 8 : 6-acid (sodium salt); (3) East India kips are drummed with the dyestuff sodium 3-amino-4-methoxybenzylsulphonate --> (alkaline) N-phenyl-2 : 8 : 6-acid (sodium salt), with addition of formic acid; (4) leather is dyed as in (1) with the dyestuff 3 - amino - 1 : 4 - di - (sulphomethyl) - benzene --> (alkaline) N - phenyl-2 : 8 : 6-acid (sodium salt).  A sample has been furnished under Sect. 2 (5) of chrome-tanned calf dyed by the process of (1) above with the dyestuff sodium 3-amino-4-methoxybenzylsulphonate --> (acid) 2 : 8 : 6-acid.  3-Amino-4-methoxybenzylsulphonic acid is obtainable by heating 3-nitro-4-methoxybenzyl chloride with aqueous sodium sulphite and reducing the nitro group.  3 - Amino - 1 : 4 - di - (sulphomethyl) - benzene is obtainable similarly from 3-nitro-1 : 4-di-(chloromethyl)- benzene.  The Specification as open to inspection under Sect. 91 comprises also the manufacture of the monoazo dyestuffs.  The following alternative components are specified for use in the manufacture of the dyestuffs of certain of the examples given above: (2) N-ethyl-2 : 8 : 6-acid (sodium salt); 2- and 3-aminobenzylsulphonic acids; (3) 3-amino-4-ethoxybenzylsulphonic acid; (4) N-p-methoxyphenyl-2 : 8 : 6-acid.  In additional examples: (5) 3 - amino - 4 - methylbenzylsulphonic acid or 3 - amino - 6 - acetylaminobenzylsulphonic acid is diazotized and coupled alkaline with 2 : 8 : 6-acid (sodium salt); the products dye chrometanned goatskin by the process of (2) above; (7) 3-chloro- or bromo-4-aminobenzylsulphonic acid is diazotized and coupled alkaline with 2 : 8 : 6-acid (sodium salt); the products dye chrome-tanned calf as in (1) above; (8) 4-amino-3-sulphobenzylsulphonic acid is diazotized and coupled alkaline with N-phenyl-2 : 8 : 6-acid (sodium salt); the product dyes leather as in (3) above.  This subject-matter does not appear in the Specification as accepted.
Patent GB-559119-A (GB)
Title: Combined cutting and loading machines for mining
IPC: E21C27/02
Filed: 1942-07-25
Abstract: 559,119. Mining machines. MOORE, M. S., and MINING ENGINEERING CO., Ltd. July 25,1942, No. 10419. [Class 68 (i)] In a reversible mining machine comprising a transverse conveyer 5 having on each side thereof a rotatable bar 1 co-operating with a loader comb 3 for loading the mined coal &c. on to the conveyer, the bars are provided with helically-arranged cutter picks 2, whereby the leading bar may be used to undercut the coal &c. and with shorter but wider bursting members 10. which may be integral with or separate from the cutter picks and which break down the ribs left between the tracks of the cutter picks. The cutter picks on the rear bar 1 are arranged between those on the forward bar and remove any ribs left by the bursting members. A shearing jib 6, carrying a cutter chain, is also provided. Specifications 441,413 and 478,070 are referred to.
Patent GB-1098324-A (GB)
Title: Electrical switches
IPC: H01H13/08
Filed: 1965-03-12
Abstract: 1,098,324. Retractive switches. LUCERNE PRODUCTS Inc. March 12, 1965 [March 31, 1964], No. 10532/65. Heading H2B. As a bridging contact 27 is moved to interconnect contacts 19, 20, its leading end 27a is lifted by a projection 29 of an insulating wall 13b mounting the contacts 19, 20, and on further movement the end 27a drops on to contact 20 as the projection 29 enters a central recess (27d) of bridging contact 27 (Fig. 6, not shown). A spring 28 presses contact 27 against contacts 19, 20 which are held in grooves of an insulating holder 13 riveted at 16<SP>1</SP> to switch casing 12. A switch actuator 16 is slidable along the upper surface of holder 13 in casing 12 to move one or more bridging contacts 27, (27), (Fig. 8, not shown), a spring 32 making actuator 16 normally retractive. A latching plunger (30) is provided (Figs. 1-4, not shown). The projection 29 and the shape of recess (27d) are designed to reduce contact " bounce ". Leading end 27a of contact 27 slides on contact 20 after its engagement therewith. Trailing end of contact 27 makes sliding engagement with contact 19 before the leading end 27a drops into contact with contact 20.
Patent GB-445224-A (GB)
Title: A process for producing coloured resists in dyeing with ester salts of leuco-vat-dyestuffs
IPC: D06P5/12
Filed: 1935-04-05
Abstract: Printing.--To obtain coloured resist effects in dyeing with ester salts of leuco vat dyestuffs, the material is printed with a resist containing a quaternary ammonium compound and an alkaline ice-colour preparation capable of development with acid, the ice-colour is developed and the material is then impregnated with a solution of an ester salt of a leuco vat dyestuff and the latter is developed by acid oxidation.  The following examples are specified: (1) A fabric is printed with an aqueous paste containing caustic soda, alcohol, commercial gum, zinc oxide, trimethylphenylammonium methosulphate and an ice-colour preparation comprising a diazoamino compound from 4-nitro-2-aminoanisol and the p-anisidide of 2 : 3-oxynaphthoic acid and the printed fabric is dried, treated for 4 minutes with steam containing acetic and formic acids, padded with an aqueous liquor containing the sulphuric acid ester salt of leuco-dimethoxydibenzanthrone, tragacanth thickening, sodium carbonate and sodium nitrite, dried, treated for 8 seconds in dilute sulphuric acid at 60--70 DEG  C., rinsed, neutralized with sodium carbonate and soaped at the boil to obtain a bright red resist pattern on a green ground.  (2) The ice-colour in (1) is replaced by one comprising a diazoamino compound from m-nitraniline and the anilide of 2 : 3-oxynaphthoic acid, the sodium carbonate and sodium nitrite in the padding liquor are replaced by sodium chlorate, ammonium sulphocyanide, ammonium vanadate and aqueous ammonia and the padded material is dried, steamed for 8 minutes, treated with dilute sulphuric acid, washed, neutralized with sodium carbonate and soaped at the boil to obtain a bright orange resist pattern on a green ground.  (3) The ice-colour in (1) is replaced by one comprising a diazoamino compound from o-chloraniline and di-(acetoacetyl)tolidine and the sulphuric acid ester salt in the padding liquor is replaced by that of the leuco vat dyestuff obtained by treating benzanthronyl-1-aminoanthraquinone with a condensing agent; a yellow resist pattern is obtained on an olive ground.  (4) A fabric is printed with an aqueous paste containing caustic soda, ammonium sulphoricinoleate, commercial gum, zinc oxide, trimethylphenylammonium methosulphate and an ice-colour preparation comprising the nitrosamine from m-nitro-p-toluidine and the anilide of 2 : 3-oxynaphthoic acid, and the printed fabric is dried, steamed, padded and further treated as in (1) to obtain a red resist pattern on a green ground.  Other specified quaternary ammonium compounds are methylpyridinium chloride, benzylpyridinium chloride and dimethylphenylbenzylammonium chloride.  Specifications 220,964, 234,829, [both in Class 15 (ii)], and 393,408 are referred to.
Patent GB-346979-A (GB)
Title: Improvements in or relating to flicker producing devices for electric fires and other electrically illuminated appliances
IPC: F24C7/00
Filed: 1930-04-04
Abstract: 346,979. Imitation fires. NEWHOUSE, F. L., Heatrae Works, St. George's Street, Norwich. April 4, 1930, No. 10682. [Class 126.] A guard for preventing dislodgment of the fan or spinner B of the flicker device of an imitation fire comprises a bimetal strip C so arranged that the fan is held from rotating until freed by the movement of the strip when heated during operation of the flicker device. In the form shown the strip ends in a ring G which surrounds the conical pivot cup A of the fan, and, when the device is cold, contacts with it to prevent rotation of the fan. The heat of the lamp F causes the strip to bend, raising the ring G out of contact with the cup A. A modification is illustrated in which the strip C extends horizontally between a pair of upright supports, the ring G being at its centre.
Patent GB-673752-A (GB)
Title: Improvements relating to beam deflecting circuits for cathode ray tubes
Inventor: WHITE ERIC LAWRENCE CASLING
IPC: H03K6/00
Filed: 1949-04-22
Abstract: 673,752. Television. ELECTRIC & MUSICAL INDUSTRIES, Ltd. April 24, 1950 [April 22, 1949], No. 10689/49. Class 40 (iii). [Also in Group XL (c)] A composite beam - deflecting wave for a cathode-ray tube is produced in one arm of a balanced electrical bridge circuit, to the conjugate points of which separate electrical variations are applied. In the arrangement shown in Fig. 1 for the production of the frame-deflecting wave for a cathode-ray tube 1 employed in the interlaced scanning of a continuously-moving kinema film 9 (for generating television signals or for recording television pictures), the bridge circuit comprises two transformer secondary windings 17, 19; 19, 18, the frame deflecting coil 5 (its resistance and that of winding 17, 19 being represented by 23), and a balancing inductance 24 and resistance 25. A saw-tooth wave a, Fig. 2, of frame frequency from generator 22, controlled by frame-synchronizing pulses from a source 37 is fed to the bridge via transformer primary 21 so that it is effective between the conjugate points 17, 18, and to the other conjugate points 19, 20 there is supplied a stepped wave b, Fig. 2, of half the frame frequency and produced by a generating circuit comprising gas-filled discharge tubes 27, 28 controlled by framesynchronizing pulses from source 37. The scanning wave produced in the deflecting coil 5 is shown at c, Fig. 2, and its effect on the scanning beam of tube 1 is to produce two separated luminous rasters each of one half the normal aspect ratio, the motions of which when combined with that of the film 9 cause the two rasters to interlace on the film. To secure sufficient accuracy of the waveform b for correct interlacing, a stabilized source of voltage 26 is employed and any variation in the waveform produced across a temperatureinsensitive resistance 31 in the cathode circuit of tube 28 is detected by means of a peakrectifying circuit 38... 40 and utilized to adjust the potential of source 26 to effect the required compensation. Stepped waveforms of different shape may be employed when the film and television frame speeds are not integral multiples of one another, Fig. 3 (not shown). Specification 475,032 is referred to in the Provisional Specification.
Patent GB-808254-A (GB)
Title: Improvements in or relating to spindle tapes
IPC: F16G1/16
Filed: 1957-04-02
Abstract: A spindle tape for a yarn winding and twisting apparatus, composed of woven cellulose fibres, e.g. of cotton or regenerated cellulose, is impregnated with a copolymer containing at least 50 per cent of vinyl acetate and at least 5 per cent of another mono-ethylenically unsaturated ester of a carboxylic acid.  The latter ingredient may be dibutyl fumarate, vinyl propionate, vinyl butyrate, vinyl stearate, ethyl acrylate, dibutyl itaconate, butyl acrylate, dibutyl maleate or dioctyl fumarate.  The copolymer may be applied from an aqueous dispersion.
Patent GB-200589-A (GB)
Title: Improved vehicle brake for haulage systems
IPC: B61H9/02
Filed: 1922-04-18
Abstract: 200,589. Fraser, W. April 18, 1922. Actuated by running wheel or axle; locking by frictional detents.-Brake mechanism for preventing reverse movement of vehicles, particularly such as are hauled by cables or the like comprises a ratchet-wheel turning with the vehicle wheels and engaging a pawl mounted upon a displaceable rod or cross-shaft connected to the brake blocks or equivalent. As shown in Fig. 1, the pawl 10 engaging the ratchet-wheel 8 mounted on the axle 7 is pivoted upon a cross shaft 9 mounted in slots in brackets 17. Brake blocks 13 are rigidly secured to the shaft 9 and are supported and normally held clear of the wheels 5 by springs 15. Upon reverse movement of the vehicle, the shaft 9 is moved in the slots to apply the blocks 13 to the wheels by the engagement of the ratchet-wheel with the pawl. The pawl may be disengaged from the ratchetwheel by a connection 11 to permit reverse movement. The pawl may instead be mounted upon one end of a longitudinally sliding rod connected to the brakes. The Provisional Specification mentions the use of band brakes.
Patent GB-1396221-A (GB)
Title: Friction clutch
IPC: F16D43/08
Filed: 1973-03-07
Abstract: 1396221 Friction clutches FICHTEL & SACHS AG 7 March 1973 [10 March 1972] 10988/73 Heading F2C A friction clutch which can be converted from centrifugal operation to manual operation and vice versa for a motor assisted cycle comprises friction discs 18, 19 respectively connected to a hub 11 fast with an engine crank-shaft 2 and a drum 1 fast with a gear 3. For centrifugal operation weights 6 acting between a conical reaction element 9 and a presser plate 25 move radially outwardly against the bias of return springs 8 to engage the clutch when the engine speed exceeds the predetermined value. To permit engine starting the clutch may be engaged by manual operation of a lever 28 which acts through an end cap 5 and support disc 17 to move the clutch discs right for clutch engagement. The clutch may be converted to manual operation by removal of the weights 6 and reaction element 9 which are replaced by a reaction element 10 and diaphragm spring 7 which urges the clutch plates into engagement. The clutch may be disengaged by actuation of the lever 28 which acts through the end cap 5 and push rods 14 to move the presser plate 25 right against the bias of the spring 7.
Patent GB-335625-A (GB)
Title: Improvements in or relating to folding containers for eggs and similar fragile articles
IPC: B65D85/32
Filed: 1929-04-09
Abstract: 335,625. Lane, S. D. April 9, 1929. Boxes made from special blanks; fittings, internal.-A container for eggs, golf balls, toilet soap &c. is formed from a single blank, shaped and folded to form a rack 16 for the bases of the articles and a spacer 15 for the upper ends, the rack lying within the spacer. The lid 12 is scored to form a subsidiary lid over each article and the wall 11 is secured by tongue and slot fastening. A corrugated paper &c. liner 30 may be employed one edge of which serves as an abutment for the rack and spacer when the container is being filled, the container being then if desired, used for display. A tongue cut from the blank may alternatively be used for keeping the rack and spacer in position.
Patent GB-451872-A (GB)
Title: Improvements in or relating to the manufacture of stratified bodies such as safety glass
IPC: C03C27/10
Filed: 1935-04-09
Abstract: In the manufacture of a safety glass having a cellulose acetate plastic interlayer, the surfaces of the glass to be united are coated first with gelatine and then with a solution of a cellulose acetate obtained by treating with acid an acetone soluble secondary cellulose acetate.  In an example, a cellulose acetate powder having an acetyl content of 35,5 per cent is boiled in a solution containing hydrochloric acid and phosphoric acid until the acetyl content has fallen to 34--34,5 per cent.  The two sheets of glass are coated with gelatine, dried and coated with an aqueous acetone solution of the prepared cellulose acetate. After drying in a chamber having a humidity of about 33 per cent, the glass sheets are combined in a bath comprising methyl cyclohexanols with an interlayer of cellulose acetate plastic containing dimethyl phthalate as plasticizer.  The assembly is then removed and pressed.  In a second example, the cellulose acetate powder has an acetyl content of 39 per cent before and 38 per cent after treatment with the acid.  The solvent used is an aqueous wood distillation product.  Specifications 328,919, 332,551, [both in Class 20 (iii)], and 389,106, [Group VIII], are referred to.