baber/WOPTO huggingface dataset:
Patent GB-173854-A (GB)
Title: Improvements in wheel rims
IPC: B60B25/04
Filed: 1920-10-06
Abstract: 173,854. Baker, T. W. Oct. 6, 1920. Tyre attachments to rims. - Relates to wheel rims of the type in which a detachable flange a' is formed of independent sections seated in a circumferential groove b' in the rim bed, and consists in the provision of fastening-means which are adapted to impart both engaging and disengaging movements in a radial direction to the sections. The fastening-means consist of nuts e rotatably fixed to the main rim part and screw studs c carried by the sections. Preferably a single fastening-device disposed at the centre of each section is used. The sections are preferably bent to a radius of curvature slightly less than that of the rim and the abutting ends of adjacent sections are shaped to interlock when the sections are spread by tightening the fastening devices. Conversely the spring of the sections disengages the interlocked ends when the fastenings are released.
Patent GB-461071-A (GB)
Title: Improvements in foot and like medical pads
IPC: A61F13/06
Filed: 1936-10-17
Abstract: 461,071. Corn and like pads. SCHOLL MANUFACTURING CO., Ltd. Oct. 17, 1936, No. 28310. Convention date, Nov. 11, 1935. [Class 81 (ii)] A protective pad comprises a perforated base ply 12 having an adhesive coating, a cushioning element 16, the edge of which is spaced inwardly from that of the base and an imperforate cover ply 19, the margin of which is adhered to the base so as to seal the cushion element. The cushion element may be bevelled and the base ply may be domed upwards as shown at 35 in Fig. 6.
Patent GB-158129-A (GB)
Title: Improvements in or in connection with valve seat truing or re-facing machines
IPC: B23C3/05
Filed: 1919-11-15
Abstract: 158,129. Bilton, E. A. Nov. 15, 1919. Portable turning-apparatus.-In a valve-seat trueing-machine of the kind having a bush B with enlarged conical end B<1> acting on jaws D to force them against the casing when a nut E on the upper part of the bush B is screwed against a plate. C carrying the jaws D, the jaws are mounted in radial grooves on the underside of the plate. To ehable the cutter to be adjusted with reference to the valve seat, collars J are provided above or below a flange a' on the cutter-bar A, and above the bush. The collars are kept in position by a split sleeve G clamped to the bush and carrying a screwed gland ring H. - Inspection holes may be provided in the plate C. Ball or roller bearings may be applied between the collars or at other desired positions to minimize friction.
Patent GB-643442-A (GB)
Title: Improvements in copying drilling or milling machines
IPC: B23Q5/10
Filed: 1945-10-26
Abstract: 643,442. Control of A.C. motors. SOC. NATIONALE DE CONSTRUCTIONS AERONAUTIQUES DU SUD-EST. Oct. 26, 1945, Nos. 28405 and 28406. Convention dates, Oct. 24, 1944 and June 21, 1945. [Class 38(iii)] [Also in Group XXII] In a copying milling or drilling machine, the speed of an asynchronous motor 96 having a squirrel cage 114 and a four-pole stator 115 is controlled by contacts 109, 109a which are appropriately set by the shank 98 of the tool through a rod 99 and spring-pressed lever 103 as described in Specification 643,443, [Group XXII). The lever 103 operates interconnected slides 104, 105 having annular contacts 108 which close the fixed contacts 109, 109a and operate relays 116, 117 and 120-122 so that four different motor speeds are provided by coupling either two or four field poles and by taking the supply from either of two alternators 111, 112 driven by a motor 110 and giving current of different frequency.
Patent GB-634949-A (GB)
Title: Methods for preparing barium and its alloys
Inventor: PRUVOT EMILE JEAN BAPTISTE
IPC: C22B26/20
Filed: 1947-10-24
Abstract: A method for preparing barium alloys consists in reducing an oxygenated compound of barium, in the state of barium oxide or barium aluminate, in atmospheric air by magnesium, at a higher temperature than the melting point of magnesium, or by an alloy of magnesium and one or more other metals which it is desired to include in the composition of the final alloy to be obtained, operating a higher temperature than the melting point of the alloy of magnesium with the said other metal or metals.  The oxide slag may be removed by mere sedimentation from the alloy so formed. Further barium may be extracted from the slag by treating the slag two or three times with magnesium or one of its alloys, in the molten state.  Complex alloys may be made by reduction of the barium compound together with other metallic oxides reducible by magnesium, e.g., by reduction of a combination of barium oxide and alumina, which may be produced by first reducing barium dioxide with aluminium in air.  Barium metal and barium alloy may be obtained by reducing barium oxide with aluminium under vacuum and treating the residues in accordance with the invention, e.g., by treating the residues with an alloy of aluminium with a little magnesium.  The production of alloys of magnesium, barium and strontium, and of magnesium, barium and aluminium is referred to. From the latter magnesium-barium alloys may be obtained by distillation in vacuum.
Patent GB-795641-A (GB)
Title: Improvements in spring suspensions for vehicles
IPC: B60G11/00
Filed: 1956-09-18
Abstract: 795,641. Hinges. STAHLWERKE BRUNINGHAUS, GES. Sept. 18, 1956 [Oct. 13, 1955], No. 28551/56. Class 65(2) [Also in Group XXXII] The invention relates to spring Suspensions of the kind comprising telescopic tubes 7, 7<SP>1</SP> connected with a vehicle frame (not shown), and to the axle 8, by a universal joint held together by a pin 10. According to the invention a bearing block 1 h a s respective spherical top and bottom surfaces disposed between concave seatings on the tube 7 and the axle 8, the radius of curvature Ru of the lower seating b e i n g equal to the maximum spring travel F, the centre of curvature of the upper surface being located at the vertex S of the lower surface. The pin 10 is rigid with the tube 7, and the bore 9 of the block 1 tapers upwardly as shown, so that the block will be moved positively, on a swivelling motion of the axle. The latter may be suspended by longitudinally extending arms (not shown).
Patent GB-188925-A (GB)
Title: Improvements in steam-heated calenders
IPC: D06C15/00
Filed: 1921-10-29
Abstract: 188,925. Fitzpatrick, H. D., (Naamlooze Vennootschap Machinfabriek Reineveld). Oct. 29, 1921. Rollers or cylinders, hollow. - A hollow perforated steam-heated calendar covered with felt 4 has a smooth outer surface provided with longitudinal grooves 2, the perforations 3 effecting communication between the interior and exterior of the cylinder being formed at the basis of the grooves 2. The usual steam pipe 5 is provided.
Patent GB-464200-A (GB)
Title: Improvements in or relating to methods of making molded mats
IPC: B29D99/00
Filed: 1936-10-23
Abstract: 464,200. Moulding rubber &c. mats. STEVENS, A. H. (Boston Woven Hose & Rubber Co.) Oct. 23, 1936, No. 28858. [Classes 70 and 87 (ii)] [Also in Groups IX and X)] Moulded stair tread mats 14 of different sizes, are produced continuously by moulding and vulcanizing into a sheet 30 of plastic material, such as rubber, several series, for example three, of repeated and uniformly spaced design units 48, cutting the sheets longitudinally by knives 54, curling the edges 68 of the sub sheets 58 by means of deflecting plates 62 and rollers 64, 66, setting the curled edges by passing through tubular jackets 70 heated by steam &c., passing the strips through a cooling chamber 72, and thereafter severing the strips midway at one of the portions 18 separating the design units, thereby producing mats of the desired length. The design units are moulded and also vulcanized upon the sheet 30 by a heated cylinder 34 engraved at 44. An endless flexible metal band passes around a portion of the cylinder 34 around rolls 38, 40, and around an adjustable tensioning roll 42.
Patent GB-1399413-A (GB)
Title: Signal suppressing circuit
IPC: G01R29/027
Filed: 1973-06-18
Abstract: 1399413 Timing ignition SIEMENS AG 18 June 1973 [16 June 1972] 28905/73 Heading F1B [Also in Division H3] In a circuit for rejecting from bipolar ignition timing signals those having one polarity first, a blocking signal is produced in response to that polarity by an integrator to block the succeeding opposite polarity, the blocking signal duration depending upon the duration of the signal portion of the first mentioned polarity. Signals induced in a coil S from a magnetic member associated with a flywheel to time the firing of a thyristor in an ignition system are bipolar as are unwanted signals produced by balancing holes, but the latter have the opposite polarity sequence. Positive portions are passed through a thresholder T1-T4 towards an output terminal H. The signals also pass to a transistor T2 which is cut-off when the polarity is negative and so allows an integrator V1, C1 to integrate the current from Rl and R2. T6 becomes conductive at the start of the integration and blocks transmission via the thresholder to the output terminal until the integration has been terminated by the end of the negative signal and the integrator has thereafter discharged, the discharge time being long enough to block the following positive signal if one exists. The duration of blocking depends upon the charge in the integrator and thus shortens as the flywheel speed increases and thus as the pulse duration decreases. A Zener diode D2 determines the initial charge on the integrating capacitor. The positive signal thresholder comprises a first transistor Tl which provides across C2 the D.C. component of the signal and a second transistor T4 which provides across C3 the peak positive level of the signal. The D.C. component and a fraction of the peak level are combined at the junction of R9 and R10 to provide a threshold level at the emitter of T3 so that an output pulse is produced when the positive signal exceeds this level.
Patent GB-533345-A (GB)
Title: Improvements in and relating to gas producers
IPC: C10J3/80
Filed: 1939-10-31
Abstract: 533,345. Gas producer plant. VAUXHALL MOTORS, Ltd., and FOSTER, D. B. Oct. 31, 1939, No. 29044. [Class 55 (i)] Air for a gas producer used for an internal combustion engine is fed past a metered water supply, and the spray and air is passed through a heat exchanger heated by the exhaust gases of the engine. Gas from the producer c is fed to a cyclone cleaner d, and through a cooling pipe e to fillers f, g, and by a pipe h to the engine. Air for the producer enters a Venturi tube k to which water is supplied from a float chamber m, and the air and spray are heated in a tubular heat exchanger o by the exhaust gases from the engine which enter at q and leave at r. The superheated mixture passes by a pipe s to the producer.
Patent GB-983816-A (GB)
Title: Improvements in or relating to mauls, mallets and the like
Inventor: THOMAS JOHN DENBIGH
IPC: B25D1/00
Filed: 1962-07-28
Abstract: 983,816. Hand tool handles. EDWARD THOMAS & CO. (OSWESTRY) Ltd. July 22, 1962 [July 28, 1962], No. 29071/62. Heading B4K. The head of a maul 15, mallet &c. is secured to the handle 10 by arcuate clampplates 11, 14, the lower plate 11 being welded or otherwise secured to the handle and the upper clamping plate 14 being clamped by a saddle washer 16 and nut 17 screwed on to the threaded portion 12 of the handle. The clamping members 11, 14 are provided with ribs 18 which fit in grooves 19 in the head 15. The handle 10 is oval and tubular.
Patent GB-176834-A (GB)
Title: Improvements in furnaces for producing chemical changes
IPC: B01J6/00
Filed: 1920-10-14
Abstract: 176,834. Woodall, Duckham, & Jones (1920), Ltd., and Duckham, Sir A. M. Oct. 14, 1920. Charging and discharging; tunnel kilns; muffle furnaces; gases, supplying.-An annular muffle kiln, a portion of which is shown developed in Fig. 2. is charged and discharged, without interrupting the operation of the conveying-platform g<0>, through gas-tight devices, the muffle being thus completely closed. The kiln walls are supported on columns y by girders d, the space between the girders d being closed at the bottom by plates d<1> having equiangularly-spaced pockets d<2> containing the supporting-rollers e for the annular platform g<0>, which is provided on its underside with a rack f<1> meshing with a driving- pinion f<2>. The upper surface of the platform g<0> is convex to correspond with the roof curvature and the depth of the bed of material thereon is regulated by an adjustable scraper g<2> carried by the shoot g<1> which supports the charging-device g. The arrow indicates the direction of rotation. The charging-device is immediately preceded by a discharger comprising a bucket conveyer o, a casing n carrying a scraper n, and a helical conveyer which receives the material from the buckets and delivers it into a gas-tight discharging hopper. Air is supplied to the combustion space at o and flows in the opposite direction to the platform, and being thus preheated, and incidentally cooling the material, burns with gas supplied through ports on the side of the kiln remote from the charging-device. The combustion products pass through flues k, c to a central chimney. Gas for promoting chemical change in the material is introduced through ports s into a passage r in which it flows in the opposite direction to the combustion gases, and being thus preheated, is admitted through vertical passages into the muffle where its direction is reversed. The gas escapes through passages u, v. A heat-insulating air space w is provided. The charging and discharging devices are mounted on removable plates x which facilitate inspection. Trucks may replace the annular platform, in which case the material is swept by an inclined scraper over the sides of the trucks to a discharging-shoot.
Patent GB-748576-A (GB)
Title: Improvements in or relating to methods of transferring glass sheets in the making of double glazed units
IPC: C03B23/24
Filed: 1953-10-22
Abstract: 748,576. Double-glazed units. PITTSBURGH PLATE GLASS CO. Oct. 22, 1953 [Oct. 25, 1952], No. 29184/53. Drawings to Specification. Class 56 In the production of double-glazed units by welding together the edges of spaced glass sheets, the sheets are conveyed to the welding chamber by a carriage on which the sheets are positioned with their clear surfaces which are to form the inside of the unit aligned and in contact with one another. After the carriage has been withdrawn the sheets are separated somewhat and their edges are heated to welding temperature.
Patent GB-345103-A (GB)
Title: Improvements in and relating to the production of hydraulic cement
IPC: C04B7/36
Filed: 1929-09-26
Abstract: A hydraulic cement is made by mixing calcium carbonate, especially natural limestone rock, with a clinker, derived from burning a mixture of calcium carbonate and aluminium silicate, in such amount that the proportion of pure carbonate added to free lime in the clinker is approximately 8 to 1.  The mixed carbonate and clinker are ground together to cement fineness.  The clinker is preferably made from a mixture of three parts of calcium carbonate to one part of aluminium silicate and free silica.  In an example 88 parts of calcium carbonate is added to 100 parts of a clinker containing 12 parts of free lime.  If great strength is not required the proportion of added carbonate may be increased to for instance 85 per cent of the total material.  Retarding agents such as potassium dichromate, boric acid, borax, and sodium, potassium or calcium sulphate may be added.
Patent GB-915588-A (GB)
Title: A bracket for overhead tracks
Inventor: JONES GLYNDWR
IPC: E05D15/06
Filed: 1960-08-24
Abstract: 915,588. Brackets. HENDERSON Ltd., P. C. Aug. 17, 1961 [Aug. 24, 1960], No. 29246/60. Class 52 (5). A track supporting bracket for sliding doors and partitions is produced by a pressing operation from a single longitudinally corrugated metal strip. A rib 16 and an apertured depression 17 are also formed in the pressing operation. An insertable end piece 23 may be provided. The bracket may support single or multiple tubular track and have holes in the horizontal portions of ribs 11 and 12 for set-screws which clamp the tubular track (Figs. 3 and 4, not shown). The screws are held clear by a spring washer during the insertion of the track in the bracket.
Patent GB-914818-A (GB)
Title: Improvements in or relating to electric lamp holders for fairy lights
IPC: F21S4/00
Filed: 1960-08-25
Abstract: 914,818. Lamp-holders. DAMON KIN KO CHENG. June 14, 1961 [Aug. 25, 1960], No. 29383/60. Class 38 (1). An electric " fairy " lamp-holder comprises two parts 10 and 11 of moulded synthetic plastic bolted together and to a suspension clip 38. Contact blades 23, 24 connect the shell and centre contact respectively of an Edison screwcap bulb 41 to insulated conductors, each blade being formed with a forked projection on one side and a pointed projection, Fig. 7 (not shown) on the other which penetrates the conductor insulation on fitting parts 10 and 11 together. Said parts are located by longitudinal ribs 12, 13 and recesses 16, 17, also grooves 14, 15 and projections 18, 19, respectively.
Patent GB-280220-A (GB)
IPC: G03F5/00
Filed: 1927-11-03
Abstract: 280,220. Hausleiter, F. H. Nov. 4, 1926, [Convention date]. Photo-mechanical printing-surfaces; retouching. - ln a process for producing half tone (screen) negatives or diapositives, more particularly for offset printing processes, the dots are embodied in a hardened state within the unhardened (or less hardened) remaining colloid, and are reduced by treatment with photographic agents. After reduction the dots may be intensified by using undissolved residuals and treatment with photograhpic intensifiers. In one example a screen bromide negative or positive, after development with a hardening developer, is treated with a reducing agent, e.g. ferrocyanide and hypo. The plate is preferably exposed through the base. Deep slots are produced by a long exposure, using a small diaphragm. The reducing agent is preferably one which also has a hardening effect. In another method an emulsion containing metallic silver (which may be a dry plate exposed and developed), is sensitized with a bichromate, exposed through a screen negative, and then treated with a solvent for the silver. The solvent only penetrates slowly into the hardened portions, but continued action may ultimately reduce the dots to mere points. Alternatively use may be made of ferro-salts instead of bichromate, or salts whose receptive hardening is destroyed by light. For local treatment resists of varnish or fat-chalk may be applied locally. Specification 119,328 is referred to.
Patent GB-1098640-A (GB)
Title: A process for the production of a finely divided silica
IPC: C01B33/193
Filed: 1966-06-30
Abstract: Finely divided silica with low iron content and high surface area is prepared by precipitation from water glass and a mineral acid at a pH less than 5 (preferably 1.5-2.5) and a temperature between 85 DEG and 95 DEG  C. in the presence of substances which form a soluble complex with iron.  The complex formers are preferably an inorganic fluorine compound and a monovalent or polyvalent organic acid or an alcohol, amide or amine; sodium fluoride and oxalic acid being preferred.  The precipitated product is filtered, washed, dried and pulverized in a gas or steam jet mill. Precipitation is preferably carried out by running the water glass solution and sulphuric acid into a stirred volume of water at the required temperature during 90 minutes, stirring for 30 minutes and then filtering.ALSO:Photographic and photocopying papers used for reproduction purposes are coated with a finely divided silica having a low iron content (for preparation see Division C1).  The silica is applied to the paper in an aqueous suspension containing binders such as starch, casein and plastics dispersions, the suspensions having a low viscosity.
Patent GB-429424-A (GB)
Title: Improvements in or relating to electric incandescent lamps
IPC: H01K9/08
Filed: 1933-10-24
Abstract: 429,424. Electric incandescent lamp bulbs with internal reflectors. LAMPE YVEL, AUTO-LAMPE, & CIE ANCIENS ETABLISSEMENTS L. LEVY ET A. MONNIER, 11, Rue Torricelli, Paris. Oct. 24, 1933, Nos. 29450 and 29451. Convention dates, Nov. 3, 1932 and Nov. 28, 1932. [Class 39 (ii)] In a lamp suitable for motor car headlights having two filaments, one of which co-operates with an internal reflecting screen, at least that half of the bulb which is turned towards the opening of the reflecting screen s<1>, Fig. 3, is provided with corrugations b<3> following the lines formed on the surface of the bulb by rays passing from the main filament which, on reflection by the parabolic reflector co-operating with the bulb, form vertical straight lines in a plane perpendicular to the axis of the reflector. Rays scattered by the corrugations form plane pencils which, after reflection in the parabolic reflector, lie substantially in horizontal planes. The other half of the bulb may be profiled in the above-named manner or by corrugations produced from non-vertical parallel lines in a similar manner. Alternatively, diffusing lenses a may be provided. The front portion of the bulb may be provided with concentric circular corrugations g. Clear zones e are left to facilitate centring of the internal members during manufacture. The Specification as open to inspection under Sect. 91 comprises also the use of two superimposed sets of corrugations making angles of 45‹ or 90‹ with each other. This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specification 404,223.
Patent GB-952739-A (GB)
Title: Improvements relating to flexible couplings for pipes
Inventor: HAUGHTON DONALD STUART
IPC: B29C49/22
Filed: 1959-08-29
Abstract: 952,739. Moulding pipe couplings. DUNLOP RUBBER CO. Ltd. July 19, 1960 [Aug. 29, 1959], No. 29571/59. Heading B5A. [Also in Division F2] A flexible pipe coupling comprises an elastomeric tube e.g. of rubber or plastics, having its ends shaped for connection to pipes, a corrugated central portion and at least one reinforcing layer of non-metallic weftless cord fabric cords which extend substantially from end to end of the coupling across the valleys and peaks of the corrugation. The reinforcement may be arranged longitudinally or helically or in two helical layers which are oppositely biased. Encircling bands 9, Fig. 4, of textile cord or fabric which may be impregnated with an elastomer, may be provided in the corrugation valley portions. The end flanges 8 can be provided with bolt holes or couplings without flanges may be bonded to the external surface of connecting pipes during moulding. The flanges 8 may be expanded mechanically prior to moulding during which end plates 30, 31 apply axial compression whilst fluid pressure is applied through orifices 34 or by means of an inflatable liner. Alternatively a tubing preformed with corrugations may be moulded to form end flanges. Annular rings of uncured rubber may be located against the end flanges during moulding to assist flange formation. Specification 952,738 is referred to.
Patent GB-1481046-A (GB)
Title: Pumps
IPC: F01L23/00
Filed: 1974-07-04
Abstract: 1481046 Valves R H WELKER 4 July 1974 29593/74 Heading F2V [Also in Division F1] An adjustable throttle valve 304 for controlling the gas flow to a reciprocating motor driving a pump (see Division F1), comprises a rod 308 which is tiltable sideways to permit gas flow between the rod and a gasket 316 from an inlet 302 to a pipe 328. Rod 308 is movable manually by rotation of a knob 438 with a snail cam edge (440), Fig. 5 (not shown). Temperature control of rod 308 is effected by a liquid-containing capsule 444 acting via a rod 454, an adjusting screw 472 being provided.