baber/WOPTO huggingface dataset:
Patent GB-635794-A (GB)
Title: Improvements in or relating to brakes for vehicles
IPC: B61H7/02
Filed: 1947-11-18
Abstract: 635,794. Track brakes. THURSTON, J. H., and LAKIN, R. J. Nov. 18, 1947, No. 30572. [Class 103 (i)] A vehicle brake comprises a cranked lever 5 pivotally mounted about a horizontal axis 6 and carrying a pedal 8 at its upper end whilst its lower end is connected by a link 11 to a brake carrying lever 12 pivoted at 13 to swing in a vertical plane. The brake shoe 17 is pivoted at 16 to the lever 12 and is held in a mean position by a spring 19. Take-off springs 15 and the adjustable stop 20 which may be spring loaded limit the maximum force which can be applied to the pedal 8.
Patent GB-772226-A (GB)
Title: Process for recovering purified mercury from impure mercury containing alloying metal impurities
IPC: C22B43/00
Filed: 1955-10-26
Abstract: Impure mercury, e.g. the "thick" mercury produced in the operation of mercury cathode electrolytic cells, containing alloying metal impurities, e.g. iron, copper and calcium, is purified by agitating it in contact with an aqueous solution of a mineral acid and an ammonium salt of a mineral acid so that the impurities are removed in the solution.  The ammonium salt is for example ammonium sulphate or ammonium chloride and the corresponding mineral acid is preferably used.  The concentration of the mineral acid and the ammonium salt are preferably 1-15 per cent each of the solution.
Patent GB-465505-A (GB)
Title: Improvements in carburetters for aircraft
IPC: F02M7/28
Filed: 1935-11-06
Abstract: 465,505. Spray carburetters. FARMER, G. H. Nov. 6, 1935, No. 30693. [Class 7 (iii)] Fuel is supplied through a jet C<3> into an emulsifying chamber D, into which air drawn from the space between the walls of a mixing chamber B<1> and a choke tube B<3> and controlled by a tapered needle J, is admitted through a tapered tube F and holes E<2>, E<3> in a tube E. At wide throttle openings the air issues from the end of the tube F, but at smaller throttle openings some escapes through holes H and reduces the suction on the jet. The float chamber A may supply fuel to jets C<2>, C<3> leading to separate emulsifying chambers which discharge through tubes C, C<1> into mixing chambers B, B<1>. The needles J are operated by levers K<1>, K<2> from an altitude control formed by an exhausted or partly exhausted corrugated metal box J<1> ; as the altitude increases, more air is admitted to the tubes F to reduce the suction on the jets. To enable the richness of the mixture to be regulated independently of the altitude control, a lever L<4> is operated to adjust the fulcrum pin L<1> of the lever K<1> Specification 465,474 is referred to.
Patent GB-754522-A (GB)
Title: Latent foaming compositions of vinyl aromatic resins and method of making cellular plastic articles therefrom
Inventor: RUBENS LOUIS CHARLES
IPC: C08F2/00
Filed: 1954-10-25
Abstract: A resinous composition suitable for making a cellular article is prepared by polymerizing a liquid mixture of 99.5 to 99.9 parts of at least one monovinyl aromatic compound of the benzene series having the vinyl radical directly attached to a carbon atom of the aromatic nucleus and from 0.5 to 0.01 parts of a polyvinyl aromatic hydrocarbon, together with from 0.05 to 0.3 gram mol. per 100 grams of the aromatic compounds of a fluid foaming agent consisting of a saturated aliphatic hydrocarbon or a perchlorofluoro carbon having a molecular weight of at least 58 and boiling at below 95 DEG  C., under at least autogeneous pressure and at 40 DEG  to 150 DEG  C. until a solid polymer is obtained, and then releasing the pressure at below the heat distortion temperature of the product.  Specified monovinyl compounds are styrene, o-, m- and p-vinyltoluene, vinylxylenes, ar-ethylvinylbenzene, ar-chloro- or ar-dichlorostyrene, ar-chlorovinyltoluene and isopropylstyrene, while specified polyvinyl compounds are divyl-benzene or toluene or xylene, and divinylethylbenzene. Ternary mixtures may also be used.  Specified foaming agents are butane, isobutane, pentane, hexane, heptane and saturated aliphatic and cyclic perchlorofluorocarbons, e.g. dichloro-difluoro-methane.  The polymerization is preferably carried out in bulk or dispersion in an inert aqueous medium, to form solid, e.g. log, bar, billet, granules or bead products, preferably using a catalyst such as di-tertiary butyl peroxide, cumene peroxide, tert-butyl-perbenzoate and alpha-alpha1-azobisisobutyronitrile.  The resinous composition may be heated above the heat distortion temperature to vaporize the foaming agent to form a cellular product which is then cooled.  This heating may take place, using discrete granules of the composition in a mould having a volume from 2 to 40 times the volume of the mass of the granules.  Specifications 406,267, [Group V], and 661,002 are referred to.
Patent GB-998039-A (GB)
Title: Castor unit
IPC: B60B33/04
Filed: 1963-08-02
Abstract: 998,039. Castors. E. WINTER, [trading as ERNST WAGNER APPARATEBAU]. April 2, 1963 [Aug. 4, 1962], No. 30733/63. Heading A4U. A castor comprises a double roller 11 having a spindle 10 reinforced, as at 10<SP>1</SP>, in its central region which engages a guide rod 8 such that the spindle 10, 10<SP>1</SP> is displaceable along the guide rod 8 perpendicularly to the castor axis D D. The guide rod 8 is carried between the rollers 11 by arms 5<SP>1</SP> on a rotatably mounted disc 5, the spindle 10, 10<SP>1</SP> being movable along the guide rod 8 against the action of a return spring 13 and having elastic stops 14, 15. A beam 17 extending between the arms 5<SP>1</SP> serves to limit rotation of the spindle 10, 10<SP>1</SP> about the axis of the cylindrical guide rod 8 which extends through the spindle reinforcement 10<SP>1</SP>.
Patent GB-505215-A (GB)
Title: Improvements in and relating to electric transformers
IPC: H02M5/12
Filed: 1937-11-09
Abstract: 505,215. Electricity supply; transformers. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 9, 1937, No. 30765. Convention date, Nov. 11, 1936. [Classes 38 (ii) and 38 (iv)] A transformer for supplying a variable voltage of the type described in Specification 472,521 is modified for 3 - phase operation by providing two three-limbed cores on which the series connected primary and secondary windings P and S and the series opposed connected control windings St are mounted. The windings may. be mounted on the cores side by side or concentrically.
Patent GB-738986-A (GB)
Title: Improvements relating to the production of diphenylamines
Inventor: WEIGHT DONALD
IPC: C07C209/64
Filed: 1952-12-04
Abstract: Diphenylamines are prepared by heating anilines or a nuclear alkylated derivative thereof in the liquid phase with a catalyst (see Group III) comprising a mixture of a copper salt, a finely-divided metal and a chloride capable of liberating hydrochloric acid.  In the preparation of diphenylamine from aniline, temperatures of 300-400 DEG  C. and pressures of 300-400 pounds per square inch with a heating period of 3-6 hours, are suitable.  In examples aniline is converted to diphenylamine using various catalyst mixtures.ALSO:Catalysts used in the production of diphenylamines from aniline, or a nuclear alkylated derivative thereof, by heating in the liquid phase, comprise a mixture of a copper salt, a finely divided metal, and a chloride capable of liberating hydrochloric acid. Suitable copper salts are cupric chloride, cupric sulphate and cuprous chloride in anhydrous or hydrated form.  The chloride capable of liberating hydrochloric acid is ammonium chloride or an amine hydrochloride, e.g. aniline hydrochloride.  The finely divided metal is copper or a metal which is higher in the electromotive series than copper and lower than calcium.  Iron is preferred, and copper bronze may be used.  The hydrochloric acid liberating substituent of the catalyst mixture may be omitted if cupric chloride and for example iron or zinc, are used.  Generally the catalyst contains approximately equal parts by weight of each constituent, and about 10 per cent of the catalyst is used relative to the amine.  The catalyst composition may change, mainly by deposition of metallic copper during the process, but catalytic activity is maintained by the addition of a hydrochloric acid liberating chloride, e.g. aniline hydrochloride, to the catalyst residue.  In examples catalyst mixtures containing hydrated cupric chloride or anhydrous cuprous chloride, iron, zinc or copper bronze powders and ammonium chloride or aniline hydrochloride are used in the preparation of diphenylamine from aniline.
Patent GB-364700-A (GB)
Title: Improvements relating to gas meters
IPC: G01F3/22
Filed: 1930-10-15
Abstract: 364,700. Gas meters. BRADDOCK, T. C., Oakdown Cottage, Reigate Road, Ewell, Surrey, and METERS, Ltd., Blackfriars House, Parsonage, Manchester. Oct. 15, 1930, No. 30801. [Class 54.] The upper surfaces of the slide valves of a gas meter are formed with housings or frames g in which rotate cams or eccentrics e, f carried by spur-wheels c, d gearing with a spur-wheel b on a shaft a rotated by the-meter flag-shafts.
Patent GB-882097-A (GB)
Title: Process for the production of organosilicon compounds
IPC: C08G77/38
Filed: 1957-10-03
Abstract: Polysiloxanes of the unit formula <FORM:0882097/IV (a)/1> wherein Z is the radical MO- in which M is an alkali metal, or chlorine or an hydroxy, alkoxy or aryloxy radical, R1 is a monovalent hydrocarbon radical, a is an integer from 2 to 10 inclusive, and b is 0, 1 or 2, are made by admixing either a silane of the formula (A) <FORM:0882097/IV (a)/2> or a siloxane of the unit formula (B) <FORM:0882097/IV (a)/3> wherein X is halogen or an alkoxy radical, with a mineral acid solution to effect complete hydrolysis, and treating the resulting hydrolyzate to recover the desired polymer. The hydrolysis is effected, preferably in the presence of an inert solvent, by adding (A) or (B) to the aqueous acid, preferably HCl, with subsequent refluxing of the mixture; the acid solution is then made basic, extracted with ether, and the aqueous layer is acidified, extracted with ether and purified.  The resulting siloxane acids can be directly esterified with alcohols or can be reacted with thionyl chloride or other acid chloride to give the corresponding siloxane acid chlorides which in turn can be reacted with alcohols to give carboalkoxyalkylsiloxanes.  Examples describe the above preparation of (1, 2, 4) g -carboxypropylmethylsiloxane cyclic tetramer, (3) b -carboxyethylpolysiloxane, (5) g -carboxypropylmethylpolysiloxane. Uses: the carboxy- and carboalkoxy-siloxanes are useful in modifying silicone oils, e.g. they may be equilibrated with other siloxanes such as those described in Example (8) of Specification 882,095, or in making silicone alkyds, ultraviolet absorbing aromatic amides, silicone elastomers and esters of polyalkeneglycols.  Specifications 797,792, 847,801, 847,802, 847,803, 847,804, 847,805, 847,806, 847,807, 855,703, 882,094 and 882,098 also are referred to. Reference has been directed by the Comptroller to Specification 786,020.
Patent GB-1216685-A (GB)
Title: Improved matchbox
IPC: A24F27/00
Filed: 1968-06-28
Abstract: 1,216,685. Boxes for matches. SERVICE D'EXPLOITATION INDUSTRIELLE DES TABACS ET DES ALLUMETTES. 28 June, 1968 [30 June, 1967], No. 30976/68. Heading B8P. A plastics &c. drawer and shell box for matches has gripping ribs between the drawer and shell, the drawer having a raised base joined to its edges by stiffening ribs. In an embodiment of the drawer, Fig. 1, the side walls have gripping ribs 2 and the end walls have either recesses 21 or inscribed advertising matter for rigidity. The recesses 21 may be replaced by extending the ribs 2 round the drawer. The gripping ribs 2 may be vertical and formed by bowing the sides of the drawer (23), Figs. 12, 13 (not shown). Peripheral ribs 8, 9, Fig. 2, around the raised base 7 may have diagonal strengthening grooves 10, or longitudinal grooves (15), Fig. 6 (not shown), or there may be transverse grooves in addition to the longitudinal grooves. The base 7 can slope to accommodate the match heads, Fig. 14 (not shown), and the ribs 8 of the drawer engage the runners 12, Fig. 7, of a U-shaped shell 11. The drawers may be moulded from sheets of plastics and the shell made by folding a band of plastics by rollers.
Patent GB-263289-A (GB)
Title: A new or improved supporting device for use in connection with glazing and other purposes
IPC: E06B3/54
Filed: 1925-12-08
Abstract: 263,289. Okines, W. Dec. 8, 1925. Spiked plates.-A spiked plate, primarily intended for supporting a sheet of glass when glazing, consists of a plate bent to form two limbs a, b at an angle greater than a right-angle to each other and two integral tongues 3 and a pointed member 2 pressed from the limbs and extending from their meeting edge.
Patent GB-603968-A (GB)
Title: Metal cutting tools for lathes and similar machines
IPC: B23B27/10
Filed: 1945-11-19
Abstract: 603,968. Turning; tools. CORRIDORI, E. Nov. 19, 1945, No. 31035. Convention date, Feb. 15. [Class 83 (iii)] A lathe &c. tool comprises a body having a circular cutting edge 9 formed between two conical surfaces 10, 11 and mounted on a rotary shaft 6 carried in a bearing 7 between collets 8, 15. By these means only part of the cutting edge is in operation at any instant and cooling is thus facilitated. The tool body, or the cutting edge, may be cobalt chromium tungsten alloy or a metal containing metal carbides.
Patent GB-711137-A (GB)
Title: Improvements in or relating to rotary valves for transferring particulate solids
IPC: B65G53/46
Filed: 1950-12-20
Abstract: 711,137. Rotary pump. HUMPHREYS & GLASGOW, Ltd., and PHILLIPPS, I. H. Dec. 19, 1951 [Dec. 20, 1950], No. 31058/50. Class 110(2) [Also in Group XXX] In a rotary valve device for conveying particulate solids from an inlet to an outlet whilst maintaining a difference of fluid pressure between the inlet and outlet, and comprising a rotor having at least three vanes operating within a stator, a fluid seal between at least one vane 11 and the stator 12 is provided by accumulation in a recess 10 in the leading edge of the vane of the particulate solid matter. The recess may increase in depth from the leading edge, as shown, or be of constant depth so that in the event of the rotor tending to jam it may be turned in the reverse direction to free the solids from the recess. As shown in Fig. 2, a member 13 which works with close clearance in the stator, and a member 14 forming the recess, are adjustable. The rotor may have one or more blades (not shown) for clearing adhering solids from the stator.
Patent GB-441511-A (GB)
Title: Improvements in or relating to apparatus for storing flat articles
IPC: G11B33/04
Filed: 1934-10-30
Abstract: 441,511. Indexing; cases. THOMPSON, T. A. M., 27, Pulborough Road, Southfields, London. Oct. 30, 1934, No. 31140. [Class 16] [See also Group XVII] Apparatus for storing flat articles, such as gramophone records, comprises a framework of spaced supporting members between which the articles are filed edgewise, in combination with a visible index which can be accommodated within the framework or withdrawn to a position to one side such that the index entries are in register with each space between the supporting members. The supporting members 20, Fig. 1, are accommodated in alternate wide and narrow grooves in crosswalls 16, 17 of a case, so that any member 20 can be rocked slightly at one end to facilitate the withdrawal of an article 23. The index-member 19 is housed between walls 17, 18 and is hinged to a sliding end portion 31, Fig. 2, which engages beneath shoulders 34 when the member 19 is withdrawn, and supports it in a horizontal position. The member 19 may be provided with undercut grooves, arranged opposite the spaces between the partitions 20, to receive inscribed indexstrips, or the index matter may be carried on strips with springy ends to clip over the recessed edges of the member 19. The case may be provided with a lid 26 with fastenings 27 and a carrying handle. In a modification the partitions-20 rest on an inclined floor 42, Fig. 10, and the member 19 runs in grooves 44 across the top of the partitions, or may be hinged to one side of the top. The apparatus may be incorporated in drawers in a larger cabinet. The partitions 20 may alternatively be threaded on rods provided with spacing means.
Patent GB-263781-A (GB)
Title: Apparatus for determining the viscosity of fluids
IPC: G01N33/30
Filed: 1926-12-08
Abstract: 263,781. Albersheim, W. J., and Konheim, H. S. Dec. 23, 1925, [Convention date]. Testing and measuring viscosity and lubricating efficiency of liquids. - Comprises means for causing the liquid to flow at a definite constant velocity through a restricted passage and means for measuring the pressure of the liquid in its flow through the passage. Liquid, pumped or delivered from a height to a chamber a, flows thence through a pipe b to a collecting vessel c. In order to impose a constant velocity in the flow there is interposed in the pipe a casing e in which rotates a turbine wheel or the equivalent driven by the liquid. The casing e is divided by a partition into two chambers, in one of which is the wheel while in the other is a governor driven by bevel gear h, i and spur wheels k, l. The governor comprises a collar n fixed to the shaft m and a loose collar o, the collars being connected by springs strips p carrying weights q. A friction disc r is adapted to engage a spring-pressed friction member s. The liquid emerging from the casing is delivered to a constriction v of definite length and cross-section disposed in the pipe. The pressure is measured by a manometer x connected to the pipe immediately in front of the constriction. In the case of a lubricating system for a motor vehicle the manometer is located on the dashboard and may be graduated in terms of viscosity serving to warn the driver when the lubricating power of the oil is insufficient. The Specification as open to inspection under Sect. 91 (3) (a) comprises also means by which viscosity may be measured by maintaining the pressure constant and measuring the velocity. The pressure may be kept constant by controlling the inlet valve by means of an expansion tube. The velocity may then be measured by constructing the tube v to move against a resilient resistance, the movement being proportional to the viscosity, or by arranging a resiliently mounted haffle in front of the constriction and measuring the movement of the baffle. Again, the pressure drop in the constricted passage may be measured by a differential pressure gauge. This subjectmatter does not appear in the Specification as accepted.
Patent GB-889176-A (GB)
Title: Improvements in or relating to bearing assemblies
IPC: F16C25/06
Filed: 1959-09-14
Abstract: 889,176. Bearings. McCALLUM, N. C. Sept. 13, 1960 [Sept. 14, 1959], No. 31191/59. Class 12 (1). A thrust-bearing assembly has a pair of axially-spaced taper roller bearings 3, 31, mounted on a non-rotatable shaft 1 and has a sleeve 2 having inwardly-directed lugs 4 which are abutted by one outside race 5 of the bearings, the other outside race 5<SP>1</SP> being engaged by a member 11 which threadably-engages the sleeve 2 and on being tightened transmits axial pressure to the bearing 3. The member 11, having a flange 11a, is locked to the bearing 3. The member 11, having a flange 11a, is locked to the sleeve 2 by studs 12. The shaft is increased in diameter at 7 and a spring 8 mounted thereon urges two floating washers 9 against the inner races 6 to provide a cushion for radial shocks received by the bearings. The drawing shows a vehicle track wheel 14 having a flange 15 by which it is attached by studs 16 to the sleeve 2. The washers 9 may have protruding studs 17 fixed thereto which enter holes in the portion 7 of the shaft 1 to prevent rotation of the washers. The spring 8 may be replaced by a series of helical springs housed in bores passing through the portion 7.
Patent GB-1291243-A (GB)
Title: Market stalls
Inventor: JACKSON FREDERICK IVOR DAVY
IPC: A47F5/13
Filed: 1969-06-20
Abstract: 1291243 Furniture joints F I D JACKSON 19 May 1970 [20 June 1969] 31215/69 Heading A4H A market stall, or a kit of parts therefore, comprises at least four square or rectangular sectioned metal posts 2 having open ends and having welded thereto, intermediate their length, sockets 47, at least three cross-members 6 for connecting the posts and having depending spigots 45 non-rotatably received in the sockets 47, at least two side roof supports 10 having spigots non-rotatably received in the open ends of the posts 2, roof front and rear members 12 connectible to the side roof supports 10 and a roof ridge member 14 mountable above the side roof support 10. Various configurations of stalls are described, some having shelves or terraced display supports, Figs.1a, 2 and 3 (not shown). All the members are connectible by the non- rotatable socket and spigots which may be additonally secured by through pins, centre support legs 8 may be provided and the connecting members may be joined together for lengthening.
Patent GB-341111-A (GB)
Title: Improvements relating to fluid operated gearing
IPC: B60K17/10
Filed: 1929-10-15
Abstract: 341,111. Hydraulic transmission of power. THOMPSON, H. A., 1522, Continella Avenue, Sawtelle, California, U.S.A. Oct. 15, 1929, No. 31239. [Class 69 (ii).] Pump and motor rotors 14, 16 mounted on the driving and driven shafts 18, 27, are disposed in a block 11, the latter being rocked about the shaft 27 against spring action either manually or automatically to vary the eccentricity of the pump. A release valve 36 is provided.
Patent GB-1189556-A (GB)
Title: Improvements in and relating to the Preparation of Aromatic Isocyanates
Inventor: PRICHARD WILLIAM W
IPC: C07C263/14
Filed: 1968-07-01
Abstract: 1,189,556. Aromatic isocyanates. E.I. DU PONT DE NEMOURS & CO. 1 July, 1968 [29 June, 1967; 29 May, 1968], No. 31318/68. Heading C2C. A process for preparing aromatic isocyanates comprises reacting an aromatic nitro-compound wherein the or each nitro group is directly attached to an aromatic ring with carbon monoxide under essentially anhydrous and hydrogen-free conditions at an elevated temperature and pressure in the presence of a palladous salt catalyst e.g. palladous chloride, and a saturated aliphatic nitrile e.g. acetonitrile. The preparations of 2,4-tolylenediisocyanate, 2 - methyl -5- nitrophenylisocyanate, 4-methyl - 3 - nitrophenylisocyanate, mphenylene diisocyanate, 3-nitrophenylisocyanate, 2,2<SP>1</SP>-biphenylylenediisocyanate, 2- isocyanate-2<SP>1</SP>-nitrobiphenyl, p-chlorophenylisocyanate, isopropyl p-isocyanatobenzoate, phenylisocyanate, p-fluorophenylisocyanate, 4-biphenylylisocyanate and 2,4,6,- and 2,4,5-trichlorophenylisocyanate are described. A list of starting materials includes pentafluoronitrobenzene, m-fluoronitrobenzene, 2,4- and 3,5-dinitrobenzonitrile, o,m and p-nitrobenzonitrile, o-nitrophenylphenyl sulphone, bis (o, m and p-nitrophenyl) sulphone, N,N- dimethyl-4-nitroaniline, o, m and p-nitrostilbene, o, m and p-nitrobenzophenone, 1- and 2-nitronaphthalene, 2-,4- and 9-nitrofluorene, 7-nitrobenz[a]anthracene, 2- and 6-nitrochrysene, 3- and 8-nitrofluoranthrene, m-nitrostyrene, 2,3- and 4-bromo-1-nitrobenzene, o and p-nitroanisole, o and p-nitrophenetole, o and p-nitrophenylacetate, methyl o and p-nitrobenzoate, dinitrodurene, dinitroprehnitere, 9,10-dinitroanthracene, 1,3- and 3,6-dinitrophenanthrene, 1,6-dinitropyrene, bis(o, m and p-nitrophenyl)ether, and 2,4- dinitroacetophenone.