baber/WOPTO huggingface dataset:
Patent GB-507474-A (GB)
Title: Improvements relating to gas taps
IPC: F16K5/10
Filed: 1938-09-17
Abstract: 507,474. Gas cocks; igniting gas burners. BRATT COLBRAN, Ltd., BRATT, L. A., and ROYALL, F. A. Sept. 17, 1938, No. 25255/37. [Class 135] . [Also in Group XI] To obtain an'accurately graduated flow a plug cock d has a solid, plug with a transverse' gap e adapted to co-operate with a series of openings s preferably of differing size forming. the inner end of the inlet or outlet passage. A ratchet wheel m co-operates 'with a spring finger n to give audible indication of the position of the plug. The ratchet wheel may form part of a pyrophoric igniter, in which case it is loose on the cock spindle and is normally held stationary by the spring finger. As the cock is opened a disc in the cock spindle first tensions a spring acting on the ratchet wheel and later a cam surface on the disc releases the spring finger and allows the spring to rotate the ratchet wheel and an abrasive member secured thereto in engagement with a pyrophoric element. In this case the audible indication of the opening is only given on the return movement towards the closed position.
Patent GB-884497-A (GB)
Title: Improvements in or relating to dry cells
IPC: H01M6/22
Filed: 1959-07-23
Abstract: 884,497. Batteries. PERTRIX-UNION G.m.b.H. July 23, 1959 [Sept. 12, 1958], No. 25350/59. Drawings to Specification. Class 53. A galvanic dry cell has an electrolyte containing at least 40% zinc chloride and thickened with carob bean meal (locust bean meal). Preferably from 0.2-0.5% of mercuric chloride is added to the electrolyte surrounding the manganese dioxide depolarizer.
Patent GB-668343-A (GB)
Title: Improvements relating to ultra-sonic sound generators
IPC: B06B1/06
Filed: 1949-10-03
Abstract: 668,343. Electro-acoustic couplings. DUSSIK, F. Oct. 3, 1949 [Oct. 4, 1948], No. 25389/49. Class 40 (iv). [Also in Groups VI and XL(b)] In a supersonic wave generator, primarily for therapeutic use, a piezo-electric plate is resiliently mounted and the front, edge and back are enclosed in separate closed chambers containing respectively a liquid for transmitting the vibrations, an insulating liquid and air. The quartz crystal 1 is clamped between synthetic rubber rings 4, 5 which are in turn held between a transparent insulating plate 6 and an annular metal frame 7, these also being separated by a further rubber ring 8. The central aperture of the plate 7 communicates with a glass tube 23, closed at its outer end by a rubber membrane 24, and the enclosed space is filled with water, to conduct the vibrations to the membrane and thence to the patient. The transmission space may be in the form of an elongated tube for particular applications and, if desired, a membrane 29 may be placed across the lower end of the tube 23.
Patent GB-153452-A (GB)
Title: Improvements in springs
IPC: B62K27/06
Filed: 1919-10-16
Abstract: 153,452. Caddick, W., and Ruby Cycle Co. Oct. 16, 1919. Laminar and single bar springs.-A cushioning-spring particularly suitable for motor-cycle side-cars &c. consists of a single or multi-leaf spring A having two S-shaped or similar ends as .shown in Figs. 1 and 2. The spring is fitted between the underside of the body of the sidecar and the chassis.
Patent GB-224223-A (GB)
Title: Improvements in the manufacture of magnesium sulphate from raw materials consisting of gypsum and dolomite
IPC: C01F5/40
Filed: 1924-10-25
Abstract: 224,223. Soc. des mines de Potasse, Amelie, Max, Joseph, Else, ThÚodore, Prince Eugine, Fernand (autrefois Reichsland) Anna, Marie et Marie- Louise. Oct. 29, 1923, [Convention date]. Magnesium sulphate; calcium carbonate.-Magnesium sulphate is obtained by treating a suspension of calcined dolomite and gypsum with excess of carbon dioxide, which is obtained in the calcination of the dolomite. The operation may be effected in a series of digesters a, each of which has a stirrer b, a heating coil c, a charging aperture d, and an emptying cock e. Carbon dioxide is supplied by a pipe f through branches f - - f<6> to each digester and surplus gas passes out by a branched exit pipe, one branch of which communicates with the neighbouring branch of the supply pipe f while the other communicates with a discharge pipe. All the pipes have appropriate valves as shown. The digesters are worked in series, and discharge into a common trough i. Specification 3844/81 is referred to.
Patent GB-444385-A (GB)
Title: A new or improved process for the manufacture of impervious and transparent paper
IPC: D21H17/64
Filed: 1935-09-13
Abstract: 444,385. Parchment paper; tracing paper. SOC. A.R.L. LABORATOIRE EGE, Rue Monnet-Daiguenoire, Voiron, and FILLIAT, G. P., 12, Rue Lakanal, Grenoble, both in IsÛre, France. Sept. 13, 1935, No. 25467. [Class 96] Unsized paper is made transparent and impervious to water, oil, &c. for use as tracing paper or as wrapping paper by treatment with sulphuric acid followed by treatment with caustic soda at a concentration of at least 25‹ BÚ. The treatments may be repeated if a greater degree of transparency is required. The finished paper is washed, neutralized and dried. It may be coloured and softened with glycerine or glucose. In an example crude paper from soda pulp is treated with 54-56‹ BÚ. sulphuric acid at less than 20‹ C. for 2-5 seconds, is squeezed and washed, and is then heated with 25-35‹ BÚ. caustic soda for 10-30 seconds. It is squeezed, washed, neutralized if desired, and dried.
Patent GB-254743-A (GB)
Abstract: 254,743. I.G. Farbenindustrie Akt.- Ges., (Assignees of Farbwerke vorm. Meister. Lucius, & Br³ning). July 2, 1925, [Convention date]. Addition to 254,340, Halogenated thioindigos.-The process of the parent Specification, according to which 6 : 6<1>-dihalogen-4: 4<1>-dimethylthioindigos are halogenated, is extended to the halogenation of 6 : 6<1> :- 4: 4<1>-tetrahalogen-, 6: 6<1>: 4: 4<1>-tetramethyl, and 4: 4<1>-dihalogen-6: 6<1>-dimethyl-thioindigos, the halogen entering the 5: 5<1>- positions. The products dye cotton from the vat in violet or violet-red shades fast to boiling. According to examples 6 : 6<1> : 4 :4<1>-tetramethylthioindigo is treated with chlorine in chlorsulphonic acid in presence of iodine or sulphur or with bromine in nitrobenzene; 4:4<1>:6:6<1>-tetrachlorthioindigo is treated with chlorine in chlorsulphonic acid in presence of antimony pentachloride.
Patent GB-983580-A (GB)
Title: Method of dyeing aluminum
IPC: C25D11/24
Filed: 1963-06-26
Abstract: Anodized aluminium having a thin oxide layer, e.g. 0.004 inch, is dyed black by treating with a mixture of black Colour Index No. 20470 (p-nitraniline base) and orange dye No. 15510 (sulphanilic acid-2-naphthol base), preferably in proportions 1 : 1 and 3 : 1 respectively.  The anodizing step is limited to 15-20 minutes using 15% H2SO4 at 70  DEG F. or higher.  Dyeing is effected at 140  DEG F. for 10 minutes.
Patent GB-649881-A (GB)
Title: An improvement in electric signs
IPC: G09F13/26
Filed: 1948-10-01
Abstract: 649,881. Monogrammic signs. WINGRAVE, F. H. Oct. 1, 1948, No. 25602. Drawings to Specification. [Class 118 (ii)] A composite sign comprises a plurality of tubular electric lamp monogrammic charactersigns and between each monogrammic sign a separate sign is installed in the form of a letter I. A similar sign is also installed at the beginning and at the end of the composite sign and when words including a letter I are illuminated these additional signs are employed to avoid the wide spacing of the letter I which arises when a normal monogrammic sign is employed to form a letter I.
Patent GB-259381-A (GB)
Title: Improvements in and connected with dynamo electric machines
IPC: H02K13/10
Filed: 1925-10-14
Abstract: 259,381. English Electric Co., Ltd., Schroeder, G., Wilson, J. C., and Frape, L. Oct. 14, 192S. Commutators: conmutation, improving by means of air blast, antiflashing barriers and the like, and electromagnets outside commutators. -To enable a commutating machine to deal with short-circuit or overload currents, the commutator is provided with a normal working portion and an additional portion to which abnormal currents are diverted, means also being provided for quenching the arcing on the heavy duty portion or allowing it to continue there in such a manner as not to damage the commutator. In the form shown in Fig. 2, the heavy duty portion 1 is collinear with the normal portion 1<1> and separated from it by a barrier 2 entering a groove 3. Currents from the portion 1 are led to the brush ring 7 through paths which are less inductive than those of the normal currents, for instance by means of insulated conductors 5 on the brush arms bent inwards over the commutator to give a U-shaped path to the current, and by capping the brush arms 9, Fig. 5, over the normal duty portion 1<1> with a U-shaped iron member 8 made of laminations. The current may be deflected towards the portion 1 by air jets adjoining the brush arms so directed as to blow incipient arcs axially towards the portion 1', in which case. the barriers 2 are omitted. Maintenance of arcs between the barriers 2 and the end disc 13 may be prevented by means of cooling or de-ionizing grids between the brush arms, as described in Specification 159,343, and by extension lugs 14 on some of the segments acting as fans to blow air into the space 15 towards the grids. The diversion of heavy currents to the portion 1 may be further aided by making the heavy duty brushes of such a nature or so mounting or adjusting them that their inherent arcing tendency is greater than that of the brushes in the portion 1. Fig. 3 shows a form in which arcs are permitted to form harmlessly on the portion 1 by the employment of an arcejecting box 16 near the brushes, of the kind described in Specification 206,694. The box has a bar 17 close to the commutator surface which, with the assistance of air entering the opening 18, throws the arc products out radially in front of the bar. They impinge on an electrode consisting of a copper ball 19 within the box, all the electrodes around the machine being connected through supporting-arms 20 and a common ring 21, thus giving the arcs a short-circuit path. Alternatively, the boxes may be omitted and the arcs may be driven to the end of the commutator by air blasts and caused to strike on short-circuiting electrodes from the segment ends. The normal and heavy duty portions of the commutator may be arranged at right-angles, as described in Specification 177,978, instead of being collinear as in Fig. 2.
Patent GB-668258-A (GB)
Title: Improvements in or relating to starting and operating circuit-arrangements for electric discharge tubes
IPC: H05B41/22
Filed: 1950-10-23
Abstract: 668,258. Supply systems for space discharge apparatus. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Oct. 23, 1950 [Oct. 26, 1949], No. 25758/50. Class 38 (iv). A starting arrangement for two seriesconnected arc discharge tubes 1, 2, of which one, 2, has an internal auxiliary electrode 11 connected to one main electrode 9 and insulated from the other, 8, comprises a capacitor 12 of between 0.2 and 0.8 ÁF. connected in series with the tube 2 and in shunt with the tube 1. Application of A.C. to terminals 4, 5 causes the auxiliary discharge of tube 2 to strike, the electrode 8 acting as a cathode, and the rectified discharge charges the capacitor 12 until its voltage exceeds the starting voltage of tube 1, whereupon its auxiliary discharge strikes and the main discharge in both tubes is set up. The capacitor also reduces the starting voltage necessary when operating' on D.C. The tube 1 is shown with a similar auxiliary electrode 10, but this is not essential, it being necessary only that the tube strikes at the capacitor voltage. Typical circuit values and conditions are described in the Specification. The stabilizing choke 3 may be replaced by a resistance.
Patent GB-227521-A (GB)
Title: Improvements in clothes pressing machines
IPC: D06F71/36
Filed: 1923-10-16
Abstract: 227,521. Lewis, C. H. Oct. 16, 1923. Ironing-machines with pressing-action and with steaming arrangements. - A construction that may be applied to either or both of the pressing members comprises a main steam heated member 7 formed with a number of hollow projections 7<a>. The flat outer surfaces 7 of these projections, which are imperforate, may form part of the actual pressing surface, in which case the surface is completed by fitting a correspondingly shaped thin plate A, Fig. 10, over the recesses formed between the projections so that the face of the plate! is level with the flat outer faces of the projections and forms a multi-cruciform shaped chamber 15 which is provided with an independently controlled supply of steam. The plate is perforated to enable the steam to pass through on to the clothes. In another construction, Fig. 9, the thin plate may cover the whole area of the pressing member with perforations provided only in those portions of the plate which are situated above the recesses in the main chamber. Specification 227,773, is referred to in connection with the manner of mounting and operating the press head.
Patent GB-716014-A (GB)
Title: Revolving disc and pointer perpetual calendar
IPC: G09D3/08
Filed: 1952-10-15
Abstract: 716,014. Perpetual calendars. ASPREY, K. M. F. Dec. 22, 1952 [Oct. 15, 1952], No. 25852/52. Class 106 (4) A perpetual calendar comprises two relatively rotatable concentric discs the front disc A bearing date numerals 1 to 28 and having two apertures B, C therein and the back disc bearing only the names of the months of the year and the extra date numerals applicable to each month of any year for display appropriately in the apertures B, C of the disc A. An additional month name for February and numeral 29 are provided on the back disc for use in leap years and a particular date indicator E. is pivoted on a rivet D rotatably securing the front and back discs together.
Patent GB-448075-A (GB)
Title: Improvements in or relating to bearings, more particularly bearings for crank shaftsof high speed internal combustion engines
IPC: F16C33/60
Filed: 1935-09-20
Abstract: 448,075. Securing bearing-races on shafts. MAYBACH - MOTORENBAU GES., Friedrichshafen, Germany. Sept. 20, 1935, No. 26169. Convention date, Sept. 21, 1934. [Class 80 (ii)] [See also Group XXXIV] A rolling friction bearing, more particularly for the crankshafts of internal-combustion engines, having the inner race ring divided substantially in the longitudinal axis, the segmental parts of the divided race ring being connected together by members engaged in grooves out in faces of the ring which are at right angles to the axis, is characterized in that the clamping members are inserted in the grooves by movements transverse to the axis. A bearing comprises an outer race ring 2, rollers 3 and an inner race ring 1 divided at 4; clamping yokes 7 are inserted transversely to the axis in grooves 6 cut in the faces of the adjacent segments and having undercut sides. The inner diameter of the inner race ring may, in the unmounted condition, be smaller than the diameter of the shaft, so that the segments when mounted are out of contact, thus ensuring a tight fit. The yokes 7 may be hammered in cold or shrunk on. The shaft may be provided with a collar at each side of the inner race ring, which may alternatively be let into the shaft. For a double row bearing, the inner race ring may have two grooves separated by a wall, and further yokes may engage grooves in this wall. The outer race ring may also be divided.
Patent GB-640286-A (GB)
Title: Improvements in moistening arrangements for hectographic copying machines
IPC: B41L7/08
Filed: 1947-09-27
Abstract: <PICT:0640286/III/1> In a hectographic copying-machine of the kind wherein the sheets on which the copies are to be obtained are moistened during their passage to the copying position by a solvent for the ink utilized in the preparation of the master which is to be copied, and in which the moistening arrangement comprises a capillary pad inclined upwardly towards the solvent delivery end, the solvent being applied to the pad at or near the lower end, the tray supporting the capillary pad and extending beyond the lower end of the pad is formed with a continuous pad-supporting surface adjacent the upper end of the pad but with a corrugated or grooved surface between said continuous surface and the lower end of the pad, whereby channels are provided beneath the pad to facilitate the flow of surplus solvent away from the upper end of the pad. These channels may progressively increase in depth and/or width towards the lower end and may discharge into a drainage trough formed in the pad tray and sloping to one side of the tray, the width and/or depth of the trough progressively increasing in the drainage direction.  The solvent may be applied to the pad from a reservoir below the pad by means of a pump, as described in Specification 608,785, and the copy sheets may be moistened by contact with a roller to which the solvent is supplied by the pad. In a preferred embodiment the housing 1 carries a base-plate 2 which supports the capillary felt pad 3 which is held in position by a cover-plate 4, and which is inclined upwardly towards its free end which projects beyond the base-plate 2. The cover-plate 4 is provided with apertures 5 to enable the solvent to be supplied to the lower end of the felt pad 3.  The base-plate 2 is provided with channels 6 which extend to the lower edge of pad 3 and enable surplus liquid to drain away quickly into trough 7 and through outlet 9 to the supply reservoir.  In a second embodiment (not shown) the tray is provided with an insert with cut-away portions constituting the channels, the tray being formed with a depression to receive the insert, the thickness of which is equal to the depth of the depression, so that the upper surface of the insert is flush with the upper surface of the tray adjacent the depression towards the upper end of the pad.
Patent GB-155421-A (GB)
Title: Improvements in bottle stoppers for aerated waters and the like
IPC: B65D39/00
Filed: 1920-02-21
Abstract: 155,421. Buchan, C. Feb. 21, 1920. Stoppers, bail. - Relates to bottle closures comprising a swing stopper provided with a swinging bail and of the type in which the stopper engages an elastic ring 3 within a groove 2 in the mouth of the bottle, the ring resting on a ledge 5 formed by making the mouth of the bottle and the upper inner edge of the groove of greater diameter than the lower inner edge of the groove. According to the invention, the stopper 6 has no sharp corners, and its spigot 7 has a rounded lower end and a tapering or conical waist portion, the upper end terminating in an outwardly curved shoulder joining the head of the stopper. In a modification, the shoulder and body portion are almost conical to produce a greater taper.
Patent GB-948932-A (GB)
Title: Improvements in or relating to circuit arrangements including electric contact sets
IPC: H01J17/38
Filed: 1960-07-28
Abstract: 948,932. Electromagnetic switches. SIEMENS & HALSKE A.G. July 28, 1960 [Aug. 6, 1959], No. 26279/60. Drawings to Specification. Heading H2B. The pressure in a sealed tube filled with argon or a mixture of hydrogen and nitrogen and enclosing overlapping contact springs is reduced so that the area of glow-discharge on contact opening is greater than the contact area. The area of glow-discharge may comprise the entire area of a contact spring within the tube (Fig. 2, not shown), or an area covered by a foil of a metal having a melting point at least as high as 2400 ‹ C. as described in Specification 948,931.
Patent GB-278715-A (GB)
Title: Improvements in or relating to voltage regulation of rectifier plants
IPC: H02M7/06
Filed: 1927-10-05
Abstract: 278,715. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). Oct. 5, 1926, [Convention date]. Vapour and vacuum or low-pressure apparatus, arrangements of.-In a conversion system in which the anodes of a rectifier a are connected to the secondary windings b of a main polyphase transformer, voltage regulation is effected by means of a supplementary transformer having simultaneously variable secondary windings d connected between the load circuit and the main secondary windings b, and forming the star point of the secondary side of the transformer system, these secondary windings d being energized by primary windings f associated with the secondary windings b of the main transformer. A modified arrangement is described in which a three phase secondary system is provided, and the regulating switch is adapted to vary the secondary windings of the supplementary transformer successively.
Patent GB-503735-A (GB)
Title: Weatherproof coat, particularly for motor cyclists
IPC: A41D3/06
Filed: 1938-09-09
Abstract: 503,735. Weatherproof coats. GLASER, H. Sept. 9, 1938, No. 26317. [Class 141] A weatherproof coat particularly for motor cyclists comprises pairs of flaps a, b, sewn to the inside of the front of the coat at c, and d, and associated with press-stud fasteners e whereby they may be secured so as to lie on the inside of the coat in an obscured position, the free edges of the flaps being adapted to be secured together by fasteners e to form coverings for the wearer's legs, the leg coverings being adjustably secured together at their upper edges by press-stud fasteners e<1>, and an additional flap g for providing a protection for the lower abdominal parts being sewn to the inside of the back of the coat at n, and being associated with fasteners e<1> for securing it in a folded condition on the inside of the coat, the flap g being adapted to be passed between the wearer's legs, and secured to the upper edges of the connected leg coverings by fasteners e<1> to form a complete pair of trousers, Fig. 4. The flaps b are provided with leather patches i at the height of the knees. The coat also comprises a chest protector l, Fig. 5, which is normally folded back on itself, and detachably secured to the coat, the protector being adapted, after the lapels k have been folded over each other, to be detachably secured to the coat so as to cover the wearer's chest. The protector l may alternatively serve as a throat and face protector or a separate member l<1> may be provided for this purpose. The press-stud fasteners may be replaced by hooks and eyes or by sliding-clasp fasteners.