baber/WOPTO huggingface dataset:
Patent GB-176973-A (GB)
Title: The soldering of aluminium
IPC: B23K35/26
Filed: 1921-01-24
Abstract: 176,973. Lowe, H. Jan. 24, 1921. Alloys.-A solder for aluminium consists of tin, zinc, and a small proportion of antimony, for example, 15 per cent of tin, 20 per cent of zinc and 5 per cent of antimony. According to the Provisional Specification the antimony may be omitted.
Patent GB-1482398-A (GB)
Title: Circuit arrangement for producing a representation of a difference in frequency between first and second alternating electrical signals
IPC: G01R23/12
Filed: 1976-01-26
Abstract: 1482398 Frequency comparators TELEFONAKTIEBOLAGET L M ERICSSON 26 Jan 1976 [29 Jan 1975] 02954/76 Heading H3A A frequency comparator comprises a phase discriminator 14 responsive to first and second signals U 1 , U 2  (which as described, are squared in 11 and 12) for producing a ramp voltage at 19, a differentiating circuit 21-24 responsive to the ramp voltage to provide a direct voltage at 26 representative of the frequency difference between U 1 , U 2 , an arrangement 29-32, 23 for causing a decrease of the time constant of the differentiating circuit 21-24 during a transient change in the ramp voltage, a switch 34 for coupling the output at 26 to an indication device 37 (to remove the fly-back spikes), a phase shifter 13 in the path of one of the signals U 2  for shifting by 180 degrees during a non- linear part of the ramp voltage. The switch 34 and a further switch 24 are controlled by circuit including monostables 32, 33 in response to the detection of transients in the ramp voltage at 20. Operation of the frequency comparator beyond upper and lower levels where the ramp is non-linear is avoided by a level sensing circuit 27, a bi-stable circuit 28 and the phase shifter 13 causing the ramp to terminate at the beginning of the non-linear range to begin a new cycle.
Patent GB-141448-A (GB)
Title: Improvements in or relating to perambulators and other vehicles
IPC: B62B9/12
Filed: 1919-02-06
Abstract: 141,448. Scrutton, H. E. Feb. 6, 1919. Padded upholstery, securing in position. - Removable upholstery for vehicles is clamped or clinched at its upper end in a channelled or grooved part of a removable frame which is provided at its upper portion with a lateral extension or enlargement adapted to be supported by the upper part of the vehicle body. As shown in Fig. 7, the upholstery is clinched in the flanged margin i of a removable frame, the flange being supported by the top of the sheet - metal vehicle body a and secured thereto by a screw j and an angle-piece k housed within a concealed channel c<1>. Fig. 10 shows a modified form in which several separate frames g<1> are used, the upholstery being clinched at w, x, y, and a lateral extension or roll z being provided to engage the channel t.
Patent GB-1176321-A (GB)
Title: Improvements in or relating to Printing Processes and Apparatus
Inventor: FARROW HAROLD FREDERICK
IPC: B41K3/54
Filed: 1966-01-24
Abstract: 1,176,321. Printing-apparatus. COLORFLO Ltd. 24 Jan., 1967 [24 Jan., 1966], No. 3115/66. Heading B6C. Intaglio printing apparatus comprises a printing plate 2 having a plurality of grooves 5 on its rear face communicating via holes with an engraving (4), Fig. 1 (not shown), on its front face, a frame 1 containing a plunger 6, and a rubber sealing member 15 and an ink sachet 12 located within the frame 1 between the plunger and the plate 2. A renewable pack consisting of sheets 10 of nylon fabric and layers of felt 11 is positioned above the plate 2 and supports a frame 13 having teeth 14 which puncture the metal foil sachet when pressure is applied to the plunger 6. The apparatus together with a sheet of paper is placed in a press. The member 15 is compressed and ink escaping from the sachet is absorbed by the felt and fabric which is forced into the grooves 5. When the pressure is released, unused ink is held by suction in the fabric and felt.
Patent GB-674356-A (GB)
Title: Improvements in or relating to compounds useful as colour-couplers in colour photography and to materials and processes utilising the same
Inventor: COLLINS RONALD BERNARD
IPC: G03C7/384
Filed: 1950-02-07
Abstract: 1 - Phenyl - 3 - heptadecyl - 4 - p - hydroxybenzylidene-5-pyrazolone is prepared by heating together 1 - phenyl - 3 - heptadecyl - 5 - pyrazolone and p-hydroxybenzaldehyde in glacial acetic acid and absolute alcohol. The corresponding 1-p-sulphophenyl- and 1-p-nitrophenyl-compounds are similarly prepared.  Specification 513,596 is referred to.  The Provisional Specification also refers to 1-p-tolyl-3-pentadecyl-4-p-hydroxybenzylidene-5-pyrazolone.
Patent GB-812406-A (GB)
Title: Camera for photographing panoramic pictures
IPC: G03B37/02
Filed: 1955-02-03
Abstract: 812,406. Photographic and kinematographic cameras. KEEBLE, R. H. W. Feb. 3, 1956 [Feb 3, 1955], No. 3162/55. Classes 97(1) and 98(1) A panoramic camera comprises a lens system in a housing rotatable about the optical system of the lens, a curved film support substantially in the focal plane of the lens and an apertured light shield rotatable about the lens housing and film support to admit light as the lens scans the film. In the form shown the objective 7  is mounted in a housing 8 with apertures 8a, 8b, through which light passes to the film supported on a guide 17 curved about the axis of rotation. A shield member 10, with a single aperture 10a is carried by a bearing 11 outside the film guide and is rotated by gearing 12a, 12b, 13, 14 at the same speed as the housing 8 and prevents entry of light during film shift. Means for adjusting the diaphragm 15 is contained in the tube 16. Means may be provided for limiting the rotation of lens housing and light shield to a single rotation for single exposures.
Patent GB-120543-A (GB)
Title: Improvements in or relating to Voltage Controlling Mechanism for Electric Installations.
IPC: H02P9/18
Filed: 1918-02-22
Abstract: 120,543. Soc. Anon. des Etablissements L. BlÚriot. Nov. 8, 1917, [Convention date]. Regulation, automatic systems and apparatus for.-In supply systems working on constant voltage, vibrating regulators are used with a. slowacting regulator and are effective on relatively large, rapid voltage variation only until the slowacting regulator can adjust the dynamo field resistance sufficiently to bring the voltage back to normal. The slow-acting regulator g cuts in more or less of the sections of the resistance d, and regulates for all small variations, and for any slowly altering variation. The vibrating regulators f, h alternately short-circuit and insert the resistances c, e respectively into the field circuit. If the voltage rises rapidly and considerably the regulator h keeps the resistance e in the circuit over longer periods, until the regulator g has adjusted the resistance d. The regulator f acts for excessive voltages below the normal; it. may be dispensed with. The whole or parts of the resistance d may be used with the vibrating regulators instead of separate resistances. The electromagnets may be compensated for variations in reluctance, temperature and pressure. The electro-magnet g may be divided into two parts, one acting for voltages above the normal, the other below; these two parts control pawls on a constantly reciprocating fork and, according to the adjustment of the pawls, act on a double-toothed ratchet to adjust a resistance-regulating switch.
Patent GB-177316-A (GB)
Title: Improvements relating to tents, marquees, and the like
IPC: E04H15/60
Filed: 1921-01-26
Abstract: 177,316. Manley, H. Jan. 26, 1921. Tent poles.-In a tent pole having an upper portion carrying a spring to allow for expansion of the canvas, the tension of the spring may be adjusted by rotating the upper portion on the lower. The pole a has an externally threaded sleeve j on which a sleeve g formed with projections k may be rotated. The sleeve g is formed with a socket to receive the lower end of a tube f in which slides a tube c carrying a top-piece b. The spring i is arranged between the upper end of the sleeve g and the top-piece, and the telescopic tubes are held against separation by a collar e and internal shoulder h.
Patent GB-764286-A (GB)
Title: Shaft cross bar with adjustable attachment
IPC: E21D7/00
Filed: 1955-02-03
Abstract: 764,286. Shafts. AKT.-GES FUR UNTERNEHMUNGEN DER EISEN-UND STAHLINDUSTRIE. Feb. 3, 1955 [Feb. 4, 1954], No. 3210/55. Class 85. A shaft cross bar is of box section, formed from two channel irons 2, 3 and has adjustable end attachment means consisting of a plate 4 having a cylindrical boss 5 engaging a corresponding hole in the cross bar or in a gusset plate 6 fixed thereto with a plate 9 slidable in a groove 8 in the plate 4 and a bolt 11 passing through slots 10, 7 in the plates 9, 4 and through holes in the cross bar and in a fixed support 12 for the cross bar. The slots 10, 7 are preferably at right angles. By rotation of the plate 4 and sliding of the plate 9 the horizontal position of the cross bar can be adjusted.
Patent GB-765307-A (GB)
Title: Improvements in snap action electric switches
IPC: H01H13/60
Filed: 1955-02-04
Abstract: 765,307. Snap action switches. HELLSTROM, G. L. Feb. 4, 1955, No. 3339/55. Class 38(5) A press button electric switch which makes and breaks contact on successive depressions of the button comprises pressure bow 22 pivotably supported on the button at 21 and having two arms 23, 24 disposed in plane perpendicular to the pivoting axis so that the arms co-operate with a contact assembly 30 pivotably supported at 36 in the switch housing and move it alternately from one end position to another. The contact assembly comprises a contact arm 31 which bridges fixed contacts 44 in the closed position and a rider 32 pivotably mounted on the contact arm and provided with shoulders 39, 40. A spring 33 connects the rider and the pressure bow and in the " make " position is constrained by the arm 23. As the button is depressed the arm 24 engages the shoulder 40 pivoting the rider clockwise, the contact arm remaining stationary until the edge 49 comes into engagement with it. When the rider is central the spring takes up a central position and further depression causes the assembly to snap over into the reverse position. On releasing the button the switch takes up a position which is a mirror image of Fig. 9.
Patent GB-174950-A (GB)
Title: Improvements in or relating to water-turbine installations
IPC: F03B15/14
Filed: 1922-02-04
Abstract: 174,950. Poebing, O., (Assignee of Suddeutsches Ingenieurbiiro Ges.). Feb. 5, 1921, [Convention date]. Regulating.-To regulate according to load the effective head on a water turbine 6 having an enclosed supply conduit 1, a branch waste pipe 2 is provided leading to a diffuser 4 having outlet ports controlled by a s l i d i n g cylindrical gate valve 5. Adjustable guide vanes 10, 11, Fig. 3, on opposite sides of the turbine runner 9 may be turned by means of a regulating shaft 14 to compensate for variations in velocity. In a modification, one diffuser 4 with a valve 5 serves as a by-pass for a number of turbines.
Patent GB-786782-A (GB)
Title: A metal rectifier unit
IPC: H01L25/07
Filed: 1955-02-04
Abstract: 786,782. Plate rectifiers. LICENTIA PATENT-VERWALTUNGS-GES. Feb. 4, 1955 [Feb. 6, 1954], No. 3360/55. Class 37. An element suitable for stacking with similar elements without intermediate members to form a rectifier assembly comprises a plate rectifier, consisting of a conducting plate with a semi-conductor layer and counter electrode on one side of it, with a spacer on at least the counter electrode side of the plate and possibly one on the other side, the plate and spacer(s) except those parts adapted to contact an adjacent element being covered with a continuous layer of insulating material. The element shown comprises an apertured A1 plate 1 coated with layers of bismuth selenide and selenium and a cadmium alloy counter electrode, with an intermediate member 7 having an inner insulating ring 8 between the counter electrode and the spacer 3. An additional spacer 2 is provided on the other side of the plate. The insulating layer 4 which is of resin containing wood or quartz powder as filler extends to the contact surfaces 5, 6 of the spacers.
Patent GB-311009-A (GB)
Title: Improvements in and relating to controllable free wheel mechanism for motor road vehicles or other apparatus
IPC: F16D41/08
Filed: 1928-02-04
Abstract: 311,009. Toothill, C. Feb. 4, 1928. Clutches, ratchet; variable-speed toothed gearing; facilitating changing speed.-In a free-wheel clutch for motor-vehicles, of the type comprising caged rollers disposed between an external drum and an internal polygonal member and controlled by a sliding key coacting with the cage, spigotended rollers are loosely carried by their spigots in the cage, which has a recess or recesses engageable at one side or the other by the bit of the slidable key or keys to determine declutching or forward, reverse, or bidirectional drive. The clutch may be placed before or behind the gearbox or may be associated with the gear-trains. The engine-shaft S, Figs. 1 and 2, carries the polygonal members H with flat or slightly convex sides H', and the propeller-shaft S<1> the drum D. The spigots R<1> of the rollers R have radial play in holes C<1> or open slots in the cage C. which has on one or both sides a notch C<2> normally engaged by the bit K<3> of a key K, revoluble with the member H and actuated by a collar K<1>. While the bit K<3> engages the notch, unidirectional overrun is allowed. The key is withdrawn to allow the engine to be used as a brake, the main clutch being " slipped " to reduce shock. To avoid the necessity for easing the main clutch, the collar K<1> may act through a spring O, Fig. 4, to bring a disc A against a flange on the drum D just prior to disengagement of the hit K<3>, in order to synchronize the shafts S, S<1>. Two keys, engageable with opposite faces of two notches, may be used to set the cage for forward, reverse, or bidirectional drive, Fig. 3 (not shown). Three such clutches are used with the direct drive and third and second speeds of the four-speed gearbox shown in Fig. 5, the first-speed gear having a free wheel clutch without cage-control. The reverse train is not shown. One or other of the key-bits K<3> of each clutch is always in engagement, so that, whichever gear (except the top) is driving, engine-brake is available on the next higher gear, the lower gears all overrunning. On the engine and tail shafts S, S<1> the drums D drive, but on the lay-shaft S<2> the polygonal inner members drive. The cage C, rollers R, and member H may form a unit reversible to equalize wear on the faces H<I>.
Patent GB-109399-A (GB)
Title: Improvements in Apparatus for Catching Mines, and for Protecting Vessels from Mines.
Inventor: FELLER MICHEL
IPC: B63G9/02
Filed: 1917-03-09
Abstract: 109,399. Feller, M. March 9, 1917 Sweeping mines.-Consists in providing the bow of a ship A, Figs. 1 and 2, with a pair of foldable horizontal frames H having a series of grasping devices J for catching mines, Each frame H is carried by links or rods G<2>, H<2>, E<9>, F<5>. The links G<2> are coupled to blocks G<1> movable along horizontal rods G near the bottom of the ship. The links H<2> contain spring cushions H', and are connected to a box D movable on vertical rails B at the bow of the ship. The links E<9> are coupled to a block E<8>, Fig. 5, on a rack E moved vertically relatively to the box D and to a similar box D' lower down by pinions E<2>, E<4>. The rods F<5> act as hinge pins for the frames H, and are connected, to nuts F<4>, which are moved along oppositely pitched screw spindles F by bevelgear F<1>, E<7>. All these parts are worked by flexible wires from windlasses on board ship to raise and lower the frames and fold, extend, and brace them. Each grasping-device J is in the form of a hollow ring containing a spring bolt J<1>, Fig. 10, which is pulled to open the ring by a wire K, and is held in the open position by a catch J<5>. Impact of a mine or other obstruction on a guard J' pulls the catch, allowing the bolt to close the ring to retain the mine therein; at the same time an electric switch J<10> is closed, giving a signal on board ship. The wire K for opening the bolt, and a wire L<3> to pull the catch J@ to permit the opening of the bolt are worked by a spring-controlled shaft and a spring-controlled slide interconnected by a finger on the shaft and a slot on the slide.
Patent GB-374455-A (GB)
Title: Improvements in or relating to plaster and cement mixes and to methods of applying the same
IPC: C04B28/16
Filed: 1931-02-04
Abstract: A plaster-cement mix which sets with a glossy surface consists of 5-95 per cent hydrated lime, or portland, white or aluminous cement with 95-5 per cent plaster of the accelerated anhydrite type with or without fillers such as sand or pigments.  If applied to absorbent backings, the backing is preferably first rendered non-absorbent, e.g. by spraying with water or applying an aqueous bitumen emulsion. Hygroscopic agents such as calcium chloride or glycerol may also be added to the wet mix.  When spraying, the mixture is preferably ground to pass through a 200 mesh sieve or may contain about 50 per cent of a relatively coarse filler such as sand.  In an example 90 parts of ground anhydrite (catalysed with 1 per cent of potassium sulphate) and 10 parts of white cement and, if desired, pigment, is gauged with 35 per cent of water and sprayed on a cement-sand coating previously applied to a brick wall, which may be pretreated with a thin film of aqueous bitumen emulsion.  In another example a mix is poured or sprayed into porous tile moulds the base of which is kept moist by standing in 1/8 in. of water.  The moulds in this case may be made of the same material as the mixture which is sprayed into them.  Specifications 236,695, 262,224, 317,672, [all in Class 22, Cements &c.], and 374,440 are referred to.
Patent GB-967981-A (GB)
Title: Gas-filled multi-electrode display tube
Inventor: TURNER ALEXANDER WILLIAM
IPC: H01J17/49
Filed: 1962-01-31
Abstract: 967,981. Glow-discharge lamps. ERICSSON TELEPHONES Ltd. Jan. 29, 1963 [Jan. 31, 1962], No. 3578/62. Heading H1D. A gas-filled multi-electrode glow-discharge display tube comprises a common electrode 15 of one polarity, a perforated insulating plate 10 and a plurality of shaped electrodes 11 of the opposite polarity each consisting of a number of wire electrodes 12 arranged parallel to each other, extending through the perforations, and connected together by means of a wire 13 bent into a desired shape. As shown, a stack of cathode electrodes, insulated from each other, are placed on one side of the insulating plate, an anode 15 being arranged a small distance from the wire electrodes. In operation by applying a potential between one of the electrodes and the anode, a glow-discharge is obtained in the forms of points around the activated wire electrodes. Alternatively, Fig. 2 (not shown), a plate, perforated in exactly the same places as the insulating plate, may be positioned on the opposite side of the insulating plate from the electrodes, and this plate used as a cathode whilst the wire electrodes are selectively energized as the anode.
Patent GB-287437-A (GB)
Title: Improvements in or relating to the manufacture of tin plates
IPC: C23G5/00
Filed: 1926-09-13
Abstract: 287,437. Ellis, G. B., (American Sheet & Tin Plate Co.). Sept. 13, 1926. Cleaning.-In the manufacture of tinned plate, the plates are treated in the apparatus described in Specification 287,436 and are fed by a conveyer 23 to a branner 24 provided with pairs of rolls 25, the rolls of each pair having a differential surface speed so as to scour or rub the plates. The plates are then fed by rolls 26 to a magnetic roll 27 which discharges them into a receptacle 28. Specification 283,614 also is referred to.
Patent GB-577614-A (GB)
Title: Improvements in device for upsetting metal
IPC: B21D11/08
Filed: 1944-02-28
Abstract: 577,614. Hand hammers, ENGINEERING & RESEARCH CORPORATION. Feb. 28, 1944, No. 3633. Convention date, Oct. 28, 1943. [Class 61 (ii)] [Also in Group XXII] A hammer head for contracting or upsetting a work-strip D, Fig. 21, comprises two normally separated parts 24, 26 having faces 4 to strike the work and being integrally but flexibly connected by the head 27 so that, when the faces 4 strike the work, the parts 24, 26 move one towards the other. The head may be formed from a block by cutting slots 6, 10, 12 and holes 8, X, Y. In a modification it is formed by cutting one slot 6 and a triangular, rectangular, or circular hole 82, Fig. 15. The parts 24, 26 may be. urged away from one another by a spring 66, Fig. 11, or be kept from relative movement, when required for peening, by a plug 90, Fig. 17, or a bolt 92, Fig. 18. The head may co-operate with a unitary support E for the work D or with another similar head in inverted position. If used to upset one edge of a strip this becomes curved in its own plane. The Specification as open to inspection under Sect. 91 comprises also a die consisting of two normally separated parts which are not integral with the head but are each connected thereto by a spring. This subject-matter does not appear in the Specification as accepted.
Patent GB-770794-A (GB)
Title: Improvements in or relating to electrical coil assemblies
Inventor: FRYDMAN EMANUEL
IPC: H01F5/06
Filed: 1955-02-08
Abstract: 770,794. Electric coils. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. Nov. 9, 1955 [Feb. 8, 1955], No. 3664/55. Class 35] An electric coil wound on a metal core 2 between insulating or insulated side-cheeks 4 is shielded from contact with the core by a wrapping of insulation 1 which has previously been formed with crinkles or undulations, so that the coil pressure causes it to expand axially and overlap the cheeks as at 6. The insulation may be cellulose-acetate and it may be secured by adhesive or solvent at the outer end 3.
Patent GB-806781-A (GB)
Title: Improvements relating to bayonet type electric lampholders
IPC: H01R33/46
Filed: 1954-02-08
Abstract: 806,781. Lamp-holders. YOUNG, S. G. May 9, 1955 [Feb. 8, 1954], No. 3680/54. Class 38(1). A bayonet lamp-holder comprises a moulded insulating socket 2 provided with rectangular recesses 3 and a U-shaped resilient metal strip 6, the limbs of which lie in grooves in the socket 2 and terminate in hooks 9 which project into the recess 3 and together therewith form the bayonet slots. The strip 6 is retained by stops 10 having side walls 11 and by a contact-carrying insulating bar 12 held by stops 13 having walls 14 but free to slide upwards until restricted by base 7 of strip 6, the base 7 resiliently biasing the bar 12. A cord grip is formed by a portion 20 of the holder body 1 and the cover 4. Ventilating shafts are provided through the holder as indicated by arrows 23, and additional holes may also be provided in cover 4. The Provisional Specification states that the metal strip may be replaced by a pair of separate strips. Specification 756,330 is referred to.
Patent GB-1134172-A (GB)
Title: Improvements in and relating to polyurethane lacquers
IPC: C08G18/32
Filed: 1966-01-27
Abstract: 1,134,172. Polyurethane coatings. SOHERING A.G. 27 Jan., 1966 [29 Jan., 1965], No. 3710/66. Headings B2E and B2K. [Also in Division C3] Polyurethane lacquers including as one component a material obtained by reaction of (a) a di- and/or poly-hydric alcohol obtained by catalytic hydrogenation of a dimeric or oligomaric fatty acid or lower alkyl ester thereof with (b) less than the equivalent amount of a di- or tri-isocyanate; and as another component, a di- and/or tri-isocyanate or a preaddition product of an excess of such a di- or tri-isocyanate with a di- and/or poly-hydric alcohol, exhibit good adhesion to various substrates, e.g. wood, metals such as iron, steel and aluminium, glass, stone, concrete, plastics, rubber and other substances of rubber-like elasticity, paper or fabrics. They may be applied by brushing, spraying or dipping as primers or undercoats, or as topcoats. The surfaces to be lacquered may be pre-treated in the usual way. In the example, a lacquer is applied to a substrate, and after evaporation of the solvent, is hardened overnight and aged for 2 hours at 100‹C.