baber/WOPTO huggingface dataset:
Patent GB-864290-A (GB)
Title: Vehicle luggage rack and tent supporting framework
IPC: E04H15/06
Filed: 1959-07-31
Abstract: 864,290. Luggage racks for vehicles; road vehicles. FERRAND, M. July 31 1959 [July 31, 1958], No. 26332/59. Classes 103(2) and 108(1). A luggage rack comprises horizontally spaced longitudinal telescopic members 2, 12, and 4, 11, Fig. 1 pivotally connected at 13 and 14, respectively, to the roof of a vehicle or to the rear of an existing roof rack, the outer ends of the members being pivoted at 21, 22 to telescopic upright members 19, 24 and 20, 23, which are connectible at their lower ends to lower rear portions of the vehicle. Alternatively when the members 2, 12 and 4, 11 are fully extended the members 19, 24 and 20, 23, are adjusted so as to rest on the ground whereby the rack constitutes a framework for' a tent. The longitudinal members are connected, at 9 and 10 to rails 3 and I parallel to the members, and also by telescopic transverse members 5, 17 and 6, 18 whereby the rack can be adjusted for width.
Patent GB-1512204-A (GB)
Title: Trench shields
IPC: E02F5/10
Filed: 1975-06-13
Abstract: 1512204 Trench shields; trenching frames E F GOLDSBY 13 June 1975 [14 June 1974] 26396/74 Headings E1E and E1F A trench shield, for advancing along a trench behind an excavating machine, for shoring the sides of the trench whilst a pipe is laid, comprises a frame having trenchsupporting side members 10, with a front member 12 therebetween having projecting cutting edges 13 steerable by jacks 14 for forming the trench surfaces, the shield being advanced by jacks 20 mounted on a horizontal transverse beam 18 which is slidably mounted on the side members 10 and which bears, during an advancing operation, against the end of a laid pipe, the jack rods carrying pins 21 for engaging holes 22 in the side members 10. The height of the shield may be extended by one or more auxiliary frames having slidable side members and transversely adjustable by jacks. Pumps for extracting water from the bed of the trench may be mounted behind the front member 12.
Patent GB-909779-A (GB)
Title: A new or improved cassette for x-ray films
IPC: G03B42/04
Filed: 1957-08-21
Abstract: 909,779. X-ray film cassettes. ELECTRONIC & X-RAY APPLICATIONS Ltd., and TUNNICLIFFE, E. A. J. Nov. 21, 1958 [Aug. 21, 1957], No. 26427/57. Class 98 (1). A cassette comprises two parts 5, 6 formed from flexible, X-ray transparent material which is impervious to air; one part 5 forms an envelope for an X-ray film and intensifying screens and the other, 6, provides an evacuable chamber connected to part 5 and to the air by non-return valves 10, 11, so that the first part can be evacuated and the film and screen pressed against each other. The walls of part 6 may normally be held apart by a spring or a rubber or plastic sponge.
Patent GB-408232-A (GB)
Title: Improvements in the manufacture and production of disazo dyestuffs
IPC: C09B35/03
Filed: 1932-09-23
Abstract: Disazo dyes, insoluble in water, are made by coupling a tetrazotised diamine (1 mol.) with a 3-alkyl-5-pyrazolone not substituted in the 1-position (2 mols.), the components being free from SO3H and COOH groups.  Instead of a ettrazotised diamine a diazotised amine containing a group capable of being converted into a primary amino group, e.g. nitro or acylamino, may be coupled with a 3-alkyl-5-pyrazolone (1 mol.) and the said group converted into the amino group which is diazotised and coupled with another molecular proportion of a 3-alkyl5-pyrazolone.  They are suitable for colouring plastic masses and masses capable of being hardened, e.g. phenol-aldehyde and ureaformaldehyde condensation products in greenishyellow to bluish-red shades. They are fast to vulcanization and may be used for colouring rubber.  In examples: (1) dianisidine is tetrazotised and coupled with 3-methyl-5-pyrazolone; a mixture of rubber and suitable additions, e.g. sulphur, zinc white, chalk and kaolin and 1 per cent of the above dyestuff is vulcanized; a mixture of casein, zinc white and 1 per cent of the above dyestuff is allowed to swell and hardened with formaldehyde; celluloid moistened with spirit is mixed with the above dyestuff; a mixture of plastic unhardened phenol-formaldehyde resin, wood meal and titanium white is mixed with 1 per cent of the above dyestuff and hardened; (2) the dyestuff p-nitraniline --> 3-methyl-5-pyrazolone is reduced, diazotised and coupled with 3-methyl-5- pyrazolone; other nitroamines, e.g. 1-methyl-3-amino-4-methoxy-6-nitrobenzene may be used or acidyldiamines, e.g. 1-amino-4-acetylaminobenzene; (3) 2 : 2<1>-dichlorbenzidine is tetrazotised and coupled with 3-methyl-5-pyrazolone; 4 : 4<1>-diaminodiphenylcyclohexane, 4 : 4<1>-diaminodiphenylsulphide, benzidine, o-tolidine, 2 : 2<1>- and 3 : 3<1>-dichlorbenzidine, p-phenylenediamine, p : p<1>-diaminobenzophenone, p : p<1>-diaminodiphenylether, p - p - diaminodiphenylmethane, p-p<1>-diaminodiphenylsulphone, p : p<1>-diaminodiphenylamine, 1 : 5-diaminonaphthalene and their derivatives are also specified as tetrazo components.ALSO:Rubber, plastic masses and masses capable of being hardened, e.g. phenol-aldehyde and urea-formaldehyde condensation products are coloured in greenish-yellow to bluish-red shades with the disazo dyestuffs diamine \sQ a 3-alkyl-5-pyrazolone not substituted in the 1-position, the components being free from SO3H and COOH groups.  The shades are fast to vulcanization. Examples are given.
Patent GB-709891-A (GB)
Title: Process for the production of lithium borohydride
IPC: C01B6/00
Filed: 1952-10-22
Abstract: Lithium borohydride is produced by reacting sodium or postasium borohydride with a lithium salt to effect double decomposition in the presence of a solvent, e.g. tetrahydrofurane or glycol formal, for the lithium salt and lithium borohydride, which solvent is inert to lithium borohydride.  The lithium salt should be a salt of an acid whose sodium or potassium salt is only sparingly soluble in the solvent, and should be in excess of that theoretically required.  The resulting lithium borohydride solution may be decanted from the precipitated sodium or potassium salt and is concentrated by partial evaporation of the solvent, e.g. until the concentration of borohydride is 6 grm. mols. per litre, when the majority of the excess lithium salt is precipitated and may be removed by decantation.  The resulting moist lithium salt may be reused.  The concentrated solution may be used as such or all solvent may be evaporated to yield a hygroscopic white solid.  In an example powdered lithium chloride is added to a tetrahydrofurane suspension of potassium borohydride where the concentration may be 1-3.5 grm. mols of borohydride per litre in amount of 1.25 mols. per mol. of borohydride at 20 DEG  C. The bromide iodide and nitrate are stated to be less satisfactory.
Patent GB-422232-A (GB)
Title: Improvements in or relating to the moulding of thermoplastic materials
IPC: B29C45/54
Filed: 1933-09-26
Abstract: 422,232. Injection-moulding of celluloid &c. CELLULOID CORPORATION, 290, Ferry Street, Newark, New Jersey, U.S.A. Sept. 26, 1933, No. 26530. Convention date, Sept. 26, 1932. [Class 87 (ii)] Comprises means for the uniform heating of plastic material prior to injection into a mould. In the apparatus shown in Fig. 1, material delivered to the hopper 15 is compressed by the heated screw 14, which is of gradually decreasing pitch and works in the heat-jacketed chamber 13, and is delivered through the perforated plate 16 and heated nozzle 17 into the heated chamber 1 from which it is expressed by the heated plunger 3 into the mould 6. The mould is in two parts which are separated for delivery of the moulded article, and may be fitted with a cooling-jacket. Fig. 2 shows a modification in which the material delivered from the nozzle 17 is cut into slugs by a reciprocating knife 42 and delivered to a conveyer 37 running through a heated chamber, finally dropping into the passage 39 leading to the plunger chamber 31 from which the mould 7 is charged. The nozzles 17 may be arranged to byepass the material when the plunger 3 is not working. The temperatures of the various jackets 21 may increase gradually from the hopper towards the nozzle, while that of the cylinder jacket 2 may be controlled by a thermostat. The invention is applicable specially to cellulose derivatives and to synthetic resins, and pressures of over 5000 lbs per sq. inch in the plunger chamber 1 are specified. British Specifications 215,823, 249,600, [both in Class 70], and 421,115, and U.S.A. Specification 1,510,779 are referred to.
Patent GB-601758-A (GB)
Title: Method of finishing gears
IPC: B23F19/00
Filed: 1945-10-11
Abstract: 601,758. Gear-cutting. FELLOWS GEAR SHAPER CO. Oct. 11, 1945, No. 26547. Convention date, Feb. 8. [Class 83 (iii)]  In a method of finishing previously cut gears, a workpiece and a pinion type cutter having cutting edges at one end only are rotated in mesh at a relatively high speed and given a relative axial reciprocation at a slow speed so that the cutting action is a drawing cut largely in the direction of the root to crest and crest to root of the gear teeth. A differential between the rotations and the timing of the reciprocations is introduced to give an axial feeding effect such that successive strokes are distributed over the entire face area of the gear teeth. For example, when the cutter and gear have an equal number of teeth, the cutter may make eight reciprocations during seven rotations of the work and each cutting stroke then takes place during <SP>7</SP>/ 16  of one rotation of the work. The cutting stroke of cutter tooth t begins at point 15 on the tip of tooth A and a cut is taken from the adjacent faces of teeth A and D by the leading and trailing edges respectively of tooth t. The following cutter teeth cut in the following gear tooth spaces until the return stroke begins, for which the cutter and gear are relatively moved apart. The second cutting stroke begins when the work has turned through # of a revolution and the gear tooth B and cutter tooth t<SP>1</SP> have moved to the dotted positions B<SP>1</SP> and t<SP>11</SP>, the cutting action beginning at point 16. The cutting action may be brought nearer the root to crest direction without reducing the ratio of reciprocations to rotations by shortening the strokes to less than the full axial width of the gear and repeating the cutting cycle with corresponding shifting of the locus of reciprocations. The cutter and gear may have a different number of teeth ; for example, with seven teeth on the cutter and six on the gear, the cutter may make one reciprocation during one rotation while the gear makes 1 <SP>1</SP>/ 16  rotations. The feeding effect may also be obtained, with or without imparting a differential, by beginning and ending successive strokes at different points along the path of reciprocating movement. For finishing helical gears, the axes of the cutter and gear may be relatively inclined or a helical cutter may be used and rotated with a speed differential between its cutting and return strokes sufficient to compensate for the increment of angular movement necessitated by the helix.
Patent GB-1515374-A (GB)
Title: Tyre failure indication means
IPC: B60C23/02
Filed: 1975-06-23
Abstract: 1515374 Indicating leakage of air from tyre inner tube LAMIR Ltd 23 June 1975 [24 June 1974] 26586/76 Heading B7C Inflation air escaping from an inner tube 7 into the space 23 between the inner tube and the inner wall of the tyre/wheel rim cavity will force member 21, attached to diaphragm 20, to its broken line position thus indicating a leakage of air from the inner tube.
Patent GB-661454-A (GB)
Title: Improvements in or relating to saucepan and like lids
IPC: A47J36/06
Filed: 1949-10-17
Abstract: 661,454. Saucepan lids &c. BLANSHARD, E. I. Feb. 20, 1950 [Oct. 17, 1949], No. 26594/49. Class 66 A saucepan lid &c. has an opening 1 through which a spoon may be passed and which has out-turned edges 3 to receive inturned edges 5 of sliding shutter 4. In a modification, the opening is straight and in the middle of the lid, a single handle 2 secured to the shutter serving to move the shutter or,to lift the lid. Alternatively, the shutter may be below the lid surface.
Patent GB-1151423-A (GB)
Title: A Refractory Flame Spraying Process
Inventor: CHATER WILLIAM JOHN BADENOCH
IPC: C23C4/10
Filed: 1965-06-23
Abstract: 1,151,423. Spray - producers; coating. BRITISH OXYGEN CO. Ltd. 22 June, 1966 [23 June, 1965], No. 26609/65. Headings B2F and B2K [Also in Division F4] An apparatus suitable for spraying molten refractory materials to patch up furnace walls comprises a vessel 10 provided with an agitator 11 designed to mix liquid fuel supplied through an inlet 12 with a powder such as alumina, burnt magnesite or calcined dolomite supplied] by a screw conveyor 13, an outlet 15 for the vessel 10 adapted to deliver the powder/fuel oil mixture centrally to the spray producer via a valve 16, and a tube supplying an oxidizing gas such as air, oxygen or oxygen enriched air to the spray producer concentrically with respect to the powder/fuel oil supply tube. The powder/fuel oil mixture may include a binder and may be atomised with a subsidiary oxygen jet prior to combustion. The vessed 10 may be provided with a pump and the powder/oil mixture may be fed by the suction of an injector burner. The oxygen &c., may be supplied to the powder/oil mixture in or upstream of the nozzle.
Patent GB-335354-A (GB)
Title: Improvements in electrical heaters
IPC: H05B3/78
Filed: 1929-09-03
Abstract: 335,354. Crossley, J. H., and Associated Electrical Industries, Ltd. Sept. 3, 1929. Heating by electricity. - An electrical immersion heater consists of two or more heating elements each of which is enclosed in a metal tube which is bent into hairpin shape and twisted into a double helix; the different helices thus formed are screwed together to produce a multiple helix. In the arrangement shown two such elements are secured to a block 3 having a screw thread 4. The block 3 carries an insulating block 6 on which are mounted terminals 14 for the leads from the resistance elements and the outside leads.
Patent GB-280870-A (GB)
Title: Improvements in or relating to electrical discharge devices
IPC: H01J17/44
Filed: 1927-10-10
Abstract: 280,870. Westinghouse Electric & Manufacturing Co., (Assignees of Knowles, D. D.). Nov. 19, 1926, [Convention date]. Vacuum tubes; low-pressure metallic-vapour apparatus. - A discharge tube for use as a rectifier, voltage-regulator or relay has cold electrodes, the cathode 1 being of greater area than the anode 4, between which a control grid or screen 6 is intimately associated with the anode, being spaced from it at a distance much smaller than the mean free path of the gas molecules. As shown the cathode consists of a cylinder of large surface surrounding an axial anode of small surface. A glass tube 5 surrounds the anode and supports the grid. The electrodes are preferably of nickel. During evacuation the envelope is heated to a temperature of 460‹ C., a filling of argon, neon or helium at a pressure of about 2 mms. of mercury is admitted, an alternating potential of 440 volts is applied between the anode and cathode, and the gas pressure adjusted until a glow discharge occurs, the tube being then sealed off. In a modification the cathode consists of a screen in the meshes of which potassium or other alkali metal is retained. In operation an alternating potential is applied between the anode and cathode, and, if the grid is earthed, a glow discharge passes at a definite potential, the inverse current being small. If the grid is insulated from earth it accumulates a negative charge, the potential gradient between the grid and cathode is lowered, and the gradient between the grid and anode is increased. Owing to the close spacing of the grid and anode no current passes in one direction and only a small current in the other direction. The charge on the grid may be removed by connecting the grid to earth directly or through a high resistance, or with the body or other object having capacity, with the result that the discharge is passed. For example the charge may be removed by the pointer of a recording meter.
Patent GB-805384-A (GB)
Title: Improvements in or relating to silver anodes for use in electroplating
Inventor: BAYES ROSS
IPC: C25D17/12
Filed: 1956-09-03
Abstract: 805,384. Electrodes for electrolysis. ENGELHARD INDUSTRIES Inc. Sept. 3, 1956, No. 26916/56. Class 41. [Also in Group XXII] A silver anode for an electroplating bath is formed as an imperforate homogeneous body having a central plate-like portion and bulbous enlarged edges, the ratio of the thickness b of the enlarged edges to the thickness a of the plate-like portion lying within the range 2: 1 to 4: 3. The ratio of the width c of the edges to the width d of the central portion lies within the range 1: 10 to 4: 10. The anode is made of extruded silver of grain size 10 to 100 microns (see Group XXII).
Patent GB-441993-A (GB)
Title: An improved method of and means for producing semi-manufactured products for cookingvessels
IPC: B21K23/00
Filed: 1935-09-30
Abstract: 441,993. Making cooking-vessels. STRACK, A. F., 2, Place de 1a Societe des Nations, Suresnes, Seine, France. Sept. 30, 1935, No. 26958. Convention date, Oct. 11, 1934. [Classes 83 (ii) and 83 (iv)] [See also Group XVII] Forging-dies ; stamping. - A semi-manufactured cooking-utensil comprises an aluminium plate furnished, over its central area on one side, with projections 5 integral with the plate, and about this central area a marginal portion of suitable width and flat on both sides is provided for subsequent formation of the walls of the vessel. A thick aluminium plate 1 previously heated to a temperature near the melting point, is placed on a die 3 mounted in the steel block 2. A drop hammer or trip with a roughened face is then brought down on the upper surface of the plate to spread it and at the same time force it into the recesses of the die 3. The semi-manufactured article is then forced from the die by the application of a compressed air supply to the end of the passage 9 which communicates with the recesses 4. An annulus 12 formed on the work is subsequently bored to provide the apertures 13, Fig. 1.
Patent GB-508842-A (GB)
Title: Improvements in the production of glutamic acid and its salts
Filed: 1937-10-05
Abstract: 508,842. Glutamic acid and salts thereof. STANDARD BRANDS, Inc. Oct. 5, 1937, No. 26958. Convention date, Oct. 15, 1936. [Class 2 (iii)] Pure glutamic acid is obtained from a solution containing crude glutamic acid hydrochloride by treating it with an organic base, such as. an aliphatic or aromatic amine or a nitrogen base (such as diethylamine, aniline. pyridine or quinoline), or with ammonium carbonate or with a salt, e.g. an ammonium, alkali metal or alkaline earth metal salt, of a weak organic acid (such as a formate, acetate, butyrate or lactate) to precipitate free glutamic acid. In the example crude glutamic acid hydrochloride is dissolved in water, treated with active carbon, filtered, analysed to determine the quantity of precipitant necessary, the calculated quantity of precipitant added. the solution allowed to stand at 0‹ C., and the glutamic acid filtered off. Further crops of pure glutamic acid can be obtained from the mother liquors. Salts are obtained from the glutamic acid by treatment in an aqueous medium with an ammonium or alkali-metal hydroxide or carbonate or other salt-forming reagent, evaporating the solution to a syrup and allowing the salt to crystallize, the preparation of the sodium and ammonium acid salts being described. Specification 508,927 is referred to. The Specification as open to inspection under Sect. 91 comprises also the use of ammonia, ammonium hydroxide. alkali metal hydroxides and carbonates, alkaline earth metal hydroxides and carbonates and ammonium alkali metal and alkaline earth metal salts of organic acids in general as glutamic acid precipitants. This subject-matter does not appear in the Specification as accepted.
Patent GB-839989-A (GB)
Title: Improvements in xerographic printers
Inventor: BOLTON WALLIS DARTE
IPC: G03G11/00
Filed: 1956-09-05
Abstract: 839,989. Xerographic processes. INTERNATIONAL BUSINESS MACHINES CORPORATION. Sept. 5, 1956, No. 27123/56. Class 98(2) [Also in Group XVI] A xerographic toner image on a record sheet is fixed by charging the toner particles to one polarity and then contacting them with toner solvent vapour particles charged to the opposite polarity. The record sheet may be cooled at the same time as it is exposed to the solvent vapour. The toner solvent may be CCl 3 F or CCl 2 FCClF 2 . Fig. 2 shows the fixing apparatus used in conjunction with a cylindrical xerographic printer. The image is developed on the xerographic drum (not shown) and is transferred to a paper web 26 by a roller 22. The toner image 33 is then given a negative charge at 34 by means of a corona discharge. The paper not covered by toner will also receive a charge but this will be rapidly discharged by earthed roller 36 and/or earthed plate 44. The primary function of plate 44 however, is to cool the paper sheet and to this end, coolant is circulated through conduit in the said plate which may be of copper. Toner solvent is vaporized in tank 38 by means of heater 39 and the vapour is sprayed through a nozzle 42 into chamber 41 wherein it comes into contact with the cooled paper web. The vapour is positively charged by means of wires or grids 43 or by spraying it from a positively charged gun through an earthed metal ring. Any excess solvent is removed from the paper by passing it over a heated block 47 and extracting the vapour from hood 48 by a blower 49. The air from the blower is passed round cooling coils 52 and the condensed vapour collected in 53. Specifications 766,426, 768,020 and 819,481 are referred to.
Patent GB-789956-A (GB)
Title: Electrically controlled device for storing articles
IPC: A47F1/04
Filed: 1956-09-05
Abstract: 789,956. Dispensing apparatus. CALMASINI, P. Sept. 5, 1956 [Sept. 10, 1955], No. 27147/56. Class 116 [Also in Group XXX] A storage device comprises an endless chain of pivoted buckets 3, which remain upright in all positions in the endless path, and which are each associated with one of a row of switches 8 each of which switches, when operated, starts the driving motor 5 and so causes the buckets to move until the bucket corresponding with the operated switch arrives at the goods removing station 16 whereupon the corresponding one of a series of cams 31, carried by the buckets. releases the operated switch 8 and causes the chain to stop. Each switch is associated with an indicator 15 containing a sample of the contents of the associated bucket.
Patent GB-359142-A (GB)
Title: Improvements in or relating to hydraulic brakes
IPC: B60T11/224
Filed: 1930-09-11
Abstract: 359,142. Fluid - pressure brakes. TEVES MASCHINEN UND-ARMATURENFABRIK GES., A., 23, Gustavsburgstrasse, Frankfort-on-Main, Germany. Sept. 11, 1930, No. 27163. Convention date, Sept. 21, 1929. [Class 103 (i).] In hydraulic brake apparatus comprising two coaxial pistons, one of which is used to take up the play in the brakes and the other to apply the pressure, the piston which takes up the play is rendered inoperative by an excess pressure valve disposed between the pistons. When the pistons 1, 2 are moved to the right as by a lever engaging the end of the piston 1 liquid is forced into the pipe 25 of the brake system by the piston 1 through bores 21 in the piston 2 and past the cup leather 22 until the pressure is sufficient to unseat the spring-pressed valve 11 when the liquid escapes through the passage 26 and only the piston 2 is then operative. The cylinder 17 is immersed in a reservoir of liquid which replenishes the system through apertures 18, 19 that are covered during the initial movement of the pistons. The valve 11 may be provided in the wall of the cylinder 17. Combined valves 24 may also be provided to compensate for alterations of volume occurring in the fluid system.