baber/WOPTO huggingface dataset:
Patent GB-268674-A (GB)
Title: Improvements in or relating to manometers
IPC: G01L7/18
Filed: 1926-10-25
Abstract: 268,674. Metropolitan-Vickers Electrical Co., Ltd., (Westinghouse Electric & Manufacturing Co.). Oct. 25, 1926. Liquid-level pressure gauges. - Relates to a U-tube manometer in which a by-pass pipe extends from the lower end of one leg to the upper end of the other so that when the pressure exceeds a predetermined value, the operating fluid is permitted to pass freely through, while the indicating liquid is retained in the instrument without the formation of air or vacuum pockets, and consists in a construction comprising several grooved plate-like members which when clamped together provide the U-tube and by-pass conduits. The instrument comprises a base member 14 having a plane front surface 15 in which is formed a shallow groove 16 of substantially U- shape. The groove has a high pressure leg 18 which extends upwardly from the bend 19 and around an enlarged chamber portion 20 to communicate with a passage 21 leading to the high pressure side of the throat of a Venturi tube. The lower pressure leg 24 extends upwardly to a chamber 20 and communicates through an opening 25 with the low pressure side of the throat. The chamber 20 has a partition 27 which divides the chamber into compartments 28, 29, 30 which intercommunicates through openings 32, 33., 34. At the lower end an enlarged offset chamber 36 is provided communicating through an opening 37 with the groove 18 and being closed by an insulating plate 38 provided with terminals 39 at different levels. This plate is secured by screws adapted to adjust the thickness of a compressible gasket or gaskets 41 to vary the volume of the chamber 36. A cover 43 is fitted. Any terminal may be connected by a lead through a switch 48, lamp or other alarm 46 and battery 45 to earth. The casing is also earthed by a conductor 47. A plate 50 is sealed over the grooved surface 15 and comprises an elongated portion and an enlarged portion. This plate is provided on its outer surface with a groove having an upper opening 56 communicating with the compartment 28 and a lower opening 57 communicating with the groove above the bend 19. A plate of glass 59 is sealed over the plate 50 and is protected by a cover 61 having a slot 65 to view the indicating liquid in the groove 55. A scale 67 may be provided. A screw plug 69 closes an opening 70 for admission of a heavy indicating. liquid such as mercury, the high pressure 18 and the low pressure parallel grooves 24, 25 are filled up to zero on the scale 67. In operation, the mercury is depressed in the leg 18 and raised in legs 24, 55. The alarm is connected to a terminal above the usual level of mercury in the leg 18. When pressure is removed or lowered to a dangerous degree, the mercury rises in the leg 18 and completes the alarm circuit. When the pressure in the leg 18 is too high, the opening 57 will be uncovered and the high and low pressure legs will be placed in communication with each other through the leg 55. The configuration of the compartments, prevents carrying over the mercury particles.
Patent GB-422585-A (GB)
Title: Improvements in or relating to variable inductances
IPC: H01F21/06
Filed: 1933-09-28
Abstract: 422,585. Inductances. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, TURNER, H. C., and POLGREEN, G. R., Peel Works, Silk Street, Salford. Sept. 28, 1933, No. 26726. [Class 37] A variable inductance comprises a core 1 of magnetic particles mounted between end-plates 5, 5<1> of insulating material carrying a winding 7, the core and winding being rotatable with respect to a fixed winding 8, both windings lying in planes parallel to the axis of rotation and having cross-sections forming portions of circles centred on the rotational axis. The windings 7, 8 may each be divided into portions containing different numbers of turns. The frame 3 may be of magnetic material forming part of the external magnetic circuit. Specifications 213,281, [Class 37], and 412,667 are referred to.
Patent GB-1377460-A (GB)
Title: Process and apparatus for joining overlapping ends of two metal foil  strips
IPC: B23K11/087
Filed: 1973-06-05
Abstract: 1377460 Welding by pressure ANO-COIL Ltd 5 June 1973 [18 Jan 1973] 26767/73 Heading B3R In a method of and apparatus for welding together the overlapped ends of metal, e.g. aluminium, strips 10, 12 at least one and preferably two copper members 30, 34 are disposed to intervene between copper electrodes 17<SP>1</SP>, 22<SP>1</SP> by which one or more spot welds are made joining the metal strip ends together. The presence of the copper members prevents surface ridges being formed at the weld spot and thus minimizes electrode wear. The copper members may be frusto-conical and mounted as shown so as to rotate to present a fresh portion of the copper member to the electrodes as the electrodes are traversed across the strips, i.e.to make a series of spot welds. In an alternative embodiment (Fig. 2, not shown) two flat circular rotatable discs are mounted to overlie the joint area while in another simpler embodiment (Fig. 1, not shown) two flat strips of copper are placed over the joint area from one side of the strips. Where the copper members are rotatably mounted provision may be made to adjust the distance of the axis of rotation from the electrodes so as to distribute the wear on the copper members.
Patent GB-303576-A (GB)
Title: Improvements in or relating to the producing of dry powders from solutions, emulsions, suspensions, or the like
IPC: A23C1/04
Filed: 1927-10-10
Abstract: 303,576. Nielsen, N. J. Oct. 10. 1927. Spray evaporators. - In a process for producing dry powders from solutions, emulsions, suspensions &c., e.g. sweet or skimmed milk, soap solutions, latex &c. two drying cyclones in series are employed. In the example given solution is led from a pump 25 to a spray tube 27 in a container 4 into which a mixture of hot air and superheated steam is forced by a pump 9 from a washing tower 20 through a heater 8 and jet pipe 7. The upper part of the container 4 constitutes the atomizing compartment, the middle part the drying zone and the lower part the cyclone zone, the cyclone being induced by the approximately tangential position of the exit pipe 11. This pipe leads approximately tangentially into a second cyclone compartment 10 from which the gases rise through sieves 16 and out through towers 17 which may act as a washing tower. The air may be led back through the cycle and may be preheated by the warm water got from condensing vapours when a vacuum concentrating apparatus is used, or may be preheated by any other method.
Patent GB-775960-A (GB)
Title: A process for stripping enamel
IPC: C23D17/00
Filed: 1955-09-20
Abstract: A vitreous enamel is stripped from metalware by treating with an aqueous solution of alkali hydroxides and cryolite at an elevated temperature and removing the reaction sludge from the metal-work by washing with water, by mechanical means or by sand blasting.  Wetting agents such as cresols, naphthols, naphthenic acids or quaternary ammonium bases may be added to the solution. The treatment may be caried out at increased pressure.
Patent GB-848605-A (GB)
Title: Improvements in and relating to transistor circuits
IPC: H03F3/183
Filed: 1958-08-21
Abstract: 848,605. Transistor protection circuits. PHILCO CORPORATION. Aug. 21, 1958 [Aug. 27, 1957], No. 26896/58. Class 40(6). A transistor circuit comprises a junction transistor connected in a common emitter circuit, having forward bias in the input circuit, and a unilaterally conductive device serially connected in the input circuit to prevent reverse flow of base current in the event of an input signal of alternating polarity attaining a value sufficient to overcome the bias, whilst permitting substantially unimpeded flow of current in the forward direction. In the embodiment shown in Fig. 1, the forward bias for the PNP transistor 11 is provided by the potential divider 17, 18 across the battery 19. A diode 20 (for example a germanium diode or a reject transistor) is connected in series with the base, the polarity being such as to prevent base current flowing in the reverse direction should the signal amplitude be sufficient to overcome the bias.
Patent GB-998782-A (GB)
Title: Burner devices for liquefied gas lighters
IPC: F23Q2/173
Filed: 1962-07-13
Abstract: 998,782. Gas lighters. T. IKETANI. July 13, 1962 [Aug. 30, 1961; Sept. 21, 1961], No. 27059/62. Heading F4F. [Also in Division G3] A gas burner device for a lighter having a porous element 4 subject to variable compression to control the fuel flow to the burner nozzle comprises a fuel passage 10 communicating the nozzle with the element 4 so as to cause fuel to flow through the element substantially across the direction of compression. The element 4 fits over a stem 13 and seats on a shoulder 12 of a support element 3 which has an axial passage 14 communicating, via the passage 10, with the outer wall of the stem 13. The porous element 4 is compressed by a member 2 screwed into a burner casing 1 which houses the support element 3. In operation, liquefied gas flows from a wick 5, through an aperture 11 in the casing 1 to a transverse groove 18 in the element 3 and through a spacing 12a around the support element 3 to the porous element 4. The exit from the passage 10 is controlled by a rubber packing 7 and a valve rod 6 actuated by the lighter cap. In a further embodiment, Fig. 3 (not shown) a compressing element is placed between the movable member and the porous element and an axially apertured rubber packing is seated over the passage in the stem portion.
Patent GB-826129-A (GB)
Title: Improvements in or relating to lift trucks
IPC: B62B3/06
Filed: 1955-09-22
Abstract: 826,129. Pallet trucks. DANIELSEN, E. Sept. 20, 1956 [Sept. 22, 1955], No. 27066/55. Addition to 804,091. Class 78 (3). The lifting platform or tines of a pallet truck are raised by a pair of shafts 44, 46 (Fig. 2) which are rotated synchronously by a footoperated lever 66 and a tie-bar 64, and are coupled to the tines or platforms by cranks 48, 52, 56, 60. A releasable catch mechanism (Fig. 4, not shown) locks the lever 66 in its lowered position. In a modification, Fig. 6, levers 82 secured to a pair of synchronouslyrotatable shafts 80 are coupled to the tines 96 by pin-and-slot connections 100, 102. In a further modification (Fig. 7) the driven shaft 110 of a pair is rotated by the interengagement of pawls 118, 126, which are pivoted respectively to the truck frame and an operating lever 122, with teeth 116a-116c in a sector 114 secured to shaft 110. The pawls being released from the teeth by a plate 134, attached to the sector by pin-and-slot connections 136, 138, 140, 142, when this plate is moved to its outermost limit by an arm 146 consequent upon the sector being moved beyond the position in which the pawls engage tooth 116c. A dashpot (not shown) is provided to limit the speed of lowering.
Patent GB-886621-A (GB)
Title: Improvements in and relating to drawing instruments
IPC: B43L13/10
Filed: 1959-08-07
Abstract: 886,621. Drawing appliances. BRITISH PETROLEUM CO. Ltd., and WILLIAMS, J. C. C. Oct. 28, 1960 [Aug. 7, 1959], No. 27078/59. Class 97(3). A drawing instrument for making a rescaled reproduction of a drawing comprises a pantograph and a drawing carriage for carrying 'a drawing tool, the pantograph being provided with a fixed point O, two reproduction points P, Q and a tracing point T, the positions of the reproduction points and the tracing point being adjustable whereby, when the adjustable points have been made colinear, movement of the tracing point results in corresponding movement of the reproduction points parallel to one another but on a different scale with respect to each other, the amount of movement of each reproduction point being in a fixed ratio to the amount of movement of the tracing point; the drawing carriage being provided with two straight, non-parallel guides, one of the reproduction points being rotatably engageable with one of the guides in such manner that the reproduction point can move freely along the guide, and the other reproduction point being similarly engageable with the other guide, a means being provided for constraining the movement of the drawing carriage so that each of the guides remains parallel to its original direction. The guides of the drawing carriage may be set at right angles or the angle between the guides may be adjusted. The means for restraining the motion of the drawing carriage may be a parallel motion linkage or a parallel motion undercarriage. The undercarriage may have three or more castors, each castor having its axle rotatable about an axis normal to the plane on which the reproduction is to be made and the distance between the point of contact of a castor with the said plane and the axis about which it rotates being the same for each castor,_the castors being mechanically interconnected whereby their tangents in the plane on which the reproduction is to be made are all parallel. The castors are also mechanically interconnected so that a rotation of any one of the castors about its own axle causes an equivalent rotation of each of the other castors about its own axle.
Patent GB-1515881-A (GB)
Title: Bobbins for electrical windings
IPC: H01F5/02
Filed: 1976-06-24
Abstract: 1515881 Bobbins HURSTFORD Ltd 24 June 1976 [26 June 1975] 27129/75 Heading B8M A rectangular section bobbin for an electrical winding is formed by an assembly of two similar moulded members each comprising two wall parts of the same length having a common edge and lying in planes at right angles to each other to form a L-shaped structure, each wall part having a flange at each of its ends at right angles thereto and extending outwardly from the intersection of these parts. Each of the latter also has a recessed abutment surface at its edge remote from the common edge to receive the free edge of the other wall part of the similar member. Recessed flanges retain a superimposed terminal block and are perforated to provide passageways for wire.
Patent GB-625833-A (GB)
Title: Improved lubricant for use in wire drawing
IPC: C10M173/02
Filed: 1946-09-10
Abstract: An aqueous base wire-drawing lubricant, especially suitable for drawing tungsten and molybdenum wires, contains graphite and a wetting agent which is a sodium or ammonium salt of a sulphonated or sulphated aliphatic alcohol having at least eight carbon atoms in the molecule.  Wetting agents mentioned are the sodium and ammonium salts of sulphonated or sulphated primary or secondary aliphatic alcohols, particularly of sulphonated or sulphated secondary aliphatic alcohols derived from synthetic sources such as petroleum.  In an example, a colloidal suspension of graphite in water known under the Registered Trade Mark " Aquadag " has added to it about 2 per cent of the wetting agent known under the Registered Trade Mark " Teepol. " According to the Provisional Specification, any aqueous base lubricant may have added to it a wetting agent which is a water-soluble salt of an organic compound in which a hydrocarbon radical is linked directly with a sulphonated or sulphated solubilising group or through an ester, amide or aryl linkage.  Salts of taurine condensation products with fatty acids, salts of isethionic acid, dioctyl sodium sulpho-succinate and salts of alkyl or keryl sulphonates are mentioned, keryl being the radical of an aliphatic hydrocarbon obtainable from kerosine.
Patent GB-209795-A (GB)
Title: Improvements connected with electric incandescent lamps
IPC: F21V9/02
Filed: 1922-10-09
Abstract: 209,795. Sleebush, A. S. Oct. 9, 1922. Vehicle lamps.-A flat or curved disc or plate c, which may be combined with a reflector casing to form a glare-preventing device for a vehicle lamp, is made of plain or coloured glass, or other transparent material, or of metal or other opaque material, and is detachably secured to the end of an electric lamp bulb a.
Patent GB-794697-A (GB)
Title: Improvements in and relating to plate type heat exchangers
IPC: F28F3/02
Filed: 1956-09-06
Abstract: 794,697. Plate type heat exchangers. AIR PREHEATER CORPORATION. Sept. 6, 1956 [Sept. 6, 1955], No. 27301/56. Class 64(3) Secondary heating surface extending between a pair of spaced plates 12 defining a fluid passage in a heat exchanger, comprises a plurality of elongated members, 10 each of I-shaped cross-section providing a pair of parallel flanges 15 connected by a perpendicular web, the outer faces of the flanges engaging the plates 12. Adjacent members 10 may abut, as shown, or they may be spaced apart parallel to one another. Individual members 10 may be built-up from a pair of channel members mounted back to back and bonded to one another and to the plates 12.
Patent GB-842431-A (GB)
Title: Improvements in or relating to the use of zeolitic molecular sieves
IPC: B01D15/08
Filed: 1958-08-26
Abstract: Zeolitic molecular sieves employed to separate components of a vaporous mixture containing an olefinic compound polymerisable on contact with the molecular sieve, are pre-treated with a nitrogen base to inhibit polymerisation of the olefin.  The nitrogen base employed preferably has a critical molecular cross-section not more than 1   greater than the pore diameter of the molecular sieve employed, normally from 3-13  .  Such nitrogen bases may be ammonia, and the various primary, secondary and tertiary amines such as monodi- and trimethylamine, mono-, di- and triethylamine, ethylene diamine, propylene diamine, propylamine, higher n-alkylamines, chloro-substituted amines such as 1-amino-1-chloroethane, 1-amino-2-chloroethane or compounds which liberate ammonia upon decomposition, such as urea and ammonium carbonate.  The amount of base employed may be between 1 and 2 millimoles per gram of zeolite. Suitable zeolites are the alkaline earth and combined alkali-alkaline earth metal aluminium silicate naturally occurring or synthetic, such as chabazite, active analcite, gmelinite and mordenite and ion exchanged forms thereof, and synthetic molecular sieves zeolites such as for example BaAl2, Si4O12, nH2O or a zeolite of the formula 0.96 \sB 0.04Na2O, Al2O3, 1.92 \sB 0.09SiO2\t or a similar sieve obtained by replacing 75% of the sodium ions with calcium, thereby giving a composition of 0.25Na2O, 0.75CaO, Al2O3, 2SiO2 such sieves having a uniform pore diameter of 4 and 5   respectively and both in the form of crystals having unit cells of 12.26  .  A further synthetic sieve has the formula 0.83 \sB 0.05Na2O, Al2O3, 2.48 \sB 0.03SiO2, nH2O having a pore diameter of 13  .  Such synthetic zeolites may be mixed with binders such as clays or alumina.  Pretreatment with a nitrogen base may be effected by passing the vapour thereof over or through the zeolite or by placing the zeolite in an evacuated container in communication with the desired nitrogen base in liquid phase.  The addition of a base in polar solvent is avoided in order to prevent exchange of the cations by ammonium ions.  If the base appears in the effluent during the separation process, a small make-up amount of base may be continuously or periodically added to the mixture to be separated.  Separation may be effected at room temperature up to 600 DEG C. at pressures varying from sub-atmospheric to 100 psig.  The absorbent may be employed as a fixed or a moving bed, or it may be fluidised.  Particular applications are the removal of small contaminating amounts of piperylene from isoprene and for the removal of water vapour or carbon dioxide from an olefinic hydrocarbon fraction by contact with a 3 angstrom molecular sieve. Mixtures of polymerizable olefinic non-hydrocarbons such as acrolein and allylepihydrin ether may also be contacted with the treated sieves. Examples illustrate the polymerizing inhibiting effect of ammonia, ethylene diamine, dimethylamine on zeolitic sieves which are contacted with piperylene, propylene, pentene-1 and isoprene.
Patent GB-279108-A (GB)
Title: A process for mounting encrusted and gummed on ornaments
IPC: B44C1/26
Filed: 1927-10-14
Abstract: 279,108. Hutgen, J. A. Oct. 18, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Ornamenting. - Ornaments, such as brilliants encrusted 'in a layer of celluloid material covering wooden heels of shoes, ornaments in combs or toys, pearls, metal caps, fancy brass nails, or other ornaments which are encrusted or gummed on the surface to be ornamented, are retained in place by covering the whole of the surface or of the ornaments, or the edges only of the ornaments, with a transparent coating which adheres strongly to the surface of the ornamented article. The transparent coating may be tinted and may be applied by spraying, brushing, or dipping. If desired, the coating may be applied to the ornament by applying a solvent to the coating and thus covering the ornament with a layer of plastic coating which subsequently sets.
Patent GB-1247328-A (GB)
Title: Motor vehicle clutch arrangement
Inventor: PRICE-STEPHENS DOUGLAS
IPC: B60K23/02
Filed: 1970-06-06
Abstract: 1,247,328. Clutch control. FORD MOTOR CO. Ltd. 6 June, 1970, No. 27473/70. Heading F2L. A clutch operating mechanism comprises a plastics or rubber bellows 9 compressible by a clutch pedal 3 to supply liquid through a line 11 to expand a bellows 13 acting through an adjustable rod 15 and lever 17 on a clutch release bearing 21. Filling and bleed openings 25, 27 are provided. A spring 23 provides a residual load on the pedal 3 to hold the clutch release bearing against the clutch release mechanism during clutch engagement. The position of the pedal 3 may be adjusted by adjustment of the rod 15.