baber/WOPTO huggingface dataset:
Patent GB-1219818-A (GB)
Title: A printing device for two-coloured mechanical impression, controlled by electric pulses
Inventor: STANTCHEV IVAN TENEV
IPC: B41J33/18
Filed: 1968-02-06
Abstract: 1,219,818. Selective printer. ZENTRALEN INSTITUT PO ISTCHISLITELNA TECHNIKA. 6 Feb., 1968 [7 Feb., 1967], No. 5962/68. Heading B6F. Type-wheel machines.-The type-wheels 1 are driven from the power stored in springs 5 under control of pawls 6, 7 actuated by elect ro magnets 9 in response to incoming signals, the wheels being reset by a crank 12 geared to a U-shaped arm 14 driven from a cam 17 on a one-revolution shaft 18. Platen impression.-The cam 17 also pivots, by means of a link 22, a platen frame 20 to effect impression. Ink-ribbon feeding and reversing mechanism.- The frame 20 is connected to a ribbon feed mechanism by a link 23, Fig. 3, having a raised projection 24 which engages a roller 25 on a pawl-carrying arm 57. This arm carries pawls 28, 29 for driving a ratchet 31 and spool 38, and a connecting link 32 transmits motion to a pawl-carrying arm 33 for rotating the other ratchet and spool 34, 40. When one ribbon is empty, tension in the ribbon prevents movement of the pawl-carrying arms and the projection 24 shifts to the other side of the roller 25 which is resiliently held to the link 23 by a spring 26. Control contours 44, 59 on control plate 43 engage the lower parts of pawls 29, 36 so that only one engages its ratchet according to the drive required. Ink-ribbon guides and colour changing.-The ribbon is guided over a carriage 47, Fig. 6, which pivots about shaft 4. Electromagnetic locking means 52, 53, 54 hold the carriage in one colour position and release it for the other colour.
Patent GB-1133361-A (GB)
Title: Mechanical transmission
IPC: F16H25/06
Filed: 1966-02-10
Abstract: 1,133,361. Toothed gearing; screw-and-nut gearing; change-speed gears. M. R. KUEHNLE. 10 Feb., 1966 [11 Feb., 1965], No. 5981/66. Headings F2D and F2Q. A mechanical power transmission comprises a shaft or ring 18 extending along the central axis of a helical race 36, a bearing 16 engaging the race and rotatable about the shaft or ring but not movable along the axis thereof, rotation of the bearing 16, e.g. by a worm 11, causing the bearing to advance relative to the race to transmit power to an output member. In the reduction or step-up gear shown, a multi-start globoidal worm 11 on a shaft 12 engages balls 43 rotatably housed at the outer peripheries of the outer races (42), (Fig. 5, not shown), of ball-bearing units 16 whose inner races (38) are non-rotatably mounted on a ring 18 between spacing blocks 46 clamped to the ring and having arms 56 secured to a hub 58 on a shaft 24, the balls 43 also engaging helical races 36 of a toroidal reaction member 37 secured in a casing 22. Rotation of shaft 12 causes rotation of the bearing unit outer races (42) about their axes, the helical races 36 causing the units 16 to move around the toroidal member 37 carrying with them the ring 18, to rotate the shaft 24. To allow for the pitch of the worm, the bearing units 16 are not equispaced round the ring 18, but have at least one spacing greater than the others, e.g. with 12 units, eleven spaces of 29 degrees 10 minutes and one of 40 degrees, or ten spaces of 29 degrees 10 minutes and two of 35 degrees diametrically opposed. Modifications.-A disc secured to the shaft 12 and having spiral facial grooves which engage balls 43 of the units 16 may replace the worm 11. Non-uniformly inclined helical grooves 36 may be used, shaped to produce intermittent or cyclically variable rotation or angular oscillation of the shaft 24. By providing for release of the reaction member 37 and locking of the bearing units 16, a two-speed gear may be produced. Several gears of different characteristics may be coupled in series to provide a multi-ratio transmission. A straight tube having internal helical grooves engaged by the outer balls of bearing units on a straight shaft coaxial with the tube has a longitudinal slot through which an elongated spur gear parallel to the tube engages the outer balls of the bearing units, so that rotation of the spur gear produces axial movement of the shaft, or vice versa. If the shaft is articulated, the tube need not be straight.
Patent GB-476914-A (GB)
Title: Improvements in and relating to electric valve converting systems
IPC: H02M1/02
Filed: 1937-03-01
Abstract: 476,914. Converting. BRITISH THOMSON-HOUSTON CO., Ltd. March 1, 1937, No. 6075. Convention date, Feb. 29, 1936. [Class 38 (ii)] In a converting arrangement employing discharge devices for supplying energy to an A.C. load circuit from an A.C. supply circuit, the control potentials for the devices are supplied from a circuit including a valve having two grids or two valves in series, each with a single grid, one of the grids being controlled from the supply circuit and the other from the load circuit. In the form shown in Fig. 1, the A.C. circuits 9, 10 are interconnected through valves 1, 2 of the immersion igniter type and these valves are controlled by means of auxiliary valves 29 each having two grids 32, 33, one being controlled at the frequency of the supply 9 through a circuit 19 supplied through a phase shifting transformer 25 and the other at the frequency of the load circuit 10 through a transformer 26. These valves only become conductive when the voltages on both control grids are above the critical value. The amount of energy transfer is varied by adjustment of the phase shifting transformer 25. In a modification, a variable speed synchronous motor is supplied from an A.C. circuit. In a further modification, Fig. 2, two auxiliary valves 48, 49 in series are used to provide the control potentials for the discharge device 1, 2. The valve 48 is controlled at the frequency of the load 10 and the valve 49 is controlled at the frequency of the supply 9 so that control impulses are supplied to the igniter electrode 7 only when both valves are conductive.
Patent GB-375245-A (GB)
Title: Improvements in or relating to the manufacture of molded inlaid linoleum
IPC: D06N7/00
Filed: 1932-02-29
Abstract: 375,245. Moulded inlaid linoleum. ARMSTRONG CORK CO., Lancaster, Pennsylvania, U.S.A.-(Assignees of Weber, C. ; 23, Coral Street, Lancaster, Pennsylvania, U.S.A.) Feb. 29, 1932, No. 6083. Convention date, April 13, 1931. [Class 140.] In the manufacture of moulded inlaid linoleum in which a granulated linoleum mix is strickled through stencil plates on to a backing of burlap or similar fabric, one or more of the stencil plates 8 are provided with openings in each of which a perforated stencil 14 is mounted with its bottom flush with the bottom of the stencil plate. By this means, dropped in figures such as shields &c. may be inserted irregularly and differently orientated on a tile pattern linoleum. The perforated stencil is provided with a colour box 12 the bottom edges 15 of which are rounded. A plurality of such perforated stencils may be used to form differently coloured elements of a design. Models may be mounted on the underside of the perforated stencil to position the coloured mix fed therethrough.
Patent GB-1131073-A (GB)
Title: Bulked yarns
Inventor: SPICER JACK ALBERT
IPC: D02G1/12
Filed: 1965-02-12
Abstract: 1,131,073. Bulking yarns. COURTAULDS Ltd. 11 1 Feb., 1966 [12 Feb., 1965], No. 6124/65. Heading D1F. In a bulking process, two or more low-twist (up to 5 turns per inch) multifilament yarns, consisting at least partly of thermoplastic e.g. nylon or acrylonitrile/vinylidene chloride copolymer, filaments, arranged parallel to each other and in one or more layers, pass between nip rollers into and through a stuffing-box comprising a channel of width such that the yarns are allowed some lateral movement and the open upper side of which is closed by a pivotally mounted, adjustably weighted pressure plate. The yarns are heated before entering, or within, the stuffing box e.g. by steam passed thereinto through apertures in the base of the channel and/or the plate and/or by electric heaters thereon. The yarns are cooled to set the crimp imparted in the stuffing-box. Crimped yarns supplied directly from the box or from storage are stretched, as by passage between two pairs of rollers, to at least 90% of their uncrimped length, thereby separating the filaments in the yarns and then relaxed so that the filaments tend to revert to their crimped formation and adjacent filaments of each yarn, and of adjacent pairs or groups of yarn if the yarns are so guided, interengage and produce bulking effects in the yarns or combinations of yarns.
Patent GB-100404-A (GB)
Title: Improvements in or relating to Axial Flow Turbines.
Inventor: CZNAY ADRIANUS ANTHONIE WILTON
IPC: F01D1/26
Filed: 1916-04-28
Abstract: 100,404. Reede, A. A. W. van. May 4, 1915, [Convention date]. Oppositely -running rotor type ; balancing moving parts; reversing.-A turbine having outer and inner oppositely-running rotors 3, 4 mounted on coaxial shafts 3<1>, 4<1> has its blading arranged so that the half to the left of the partition 19 is used for forward working, and the half to the right for reverse working. End thrust is balanced by dividing each half into compartments by partitions 8 connected to the outer (or inner) rotor, a gap 23 being left in each compartment between the last row of blades and the adjoining partition to allow steam to enter the compartment, where it passes through holes 9 in the blade disks 10 and acts equally on opposite side-walls 8. The partitions are packed at their inner edges by loose rings 22 of brass or similar metal. The hollow central partition 19 is connected to the exhaust 18 by ducts 21. The disks and partitions are bent inwards to accommodate the ball bearings 2, 5, as shown, and the steam-inlet conduits 15, 11 for forward and reverse working respectively are arranged concentrically in the shaft 4<1> with clearances so that one or both are out of contact with the shaft bearings.
Patent GB-101927-A (GB)
Title: Model Aeroplanes and Methods of Constructing them for use as Advetising Media, Toys, Instructional Examples, and the like.
Inventor: HUME DUNCAN CLIVE MACKENZIE
IPC: G09F7/22
Filed: 1916-04-29
Abstract: 101,927. Hume, D. C. M. April 29, 1916. Toy and model flying machines; planes, construction of.-A model aeroplane for use as an advertising medium, a toy, an instructional example, etc.. is formed by cutting out and folding the developed surfaces of the model from paper, cardboard, mica, or other sheet material, the wing of the aeroplane being so folded and fastened as to produce a cambered surface on the top face whilst the lower face remains flat. The body A, Fig 1, is formed by folding the development into triangular shape, the edges of the development being gummed together by means of a flap. A nose B, similarly formed, is secured to the body and may be filled with plastic material. The wing C is formed of two surfaces 6, 7, Fig. 2, one of the surfaces being broader than the other, so that when folded and gummed together, a cambered wing is produced, as shown in Fig. 2. A tail E, elevated by a wedge-piece, and a fin and rudder F arranged at right-angles to the tail are secured to the rear of the body A. The parts may be stiffened by means of extra pieces, and a chassis and propellers may be added. For a biplane, an additional wing and struts may be added. The aeroplane may be marketed as a complete apparatus, or the developed shapes printed on sheet material may be supplied for home manufacture.
Patent GB-507026-A (GB)
Title: Improvements relating to road vehicle or other petrol tanks
IPC: B60K15/04
Filed: 1938-02-28
Abstract: 507,026. Pipe - - joints. WESTWOOD, S. C., and WESTWOOD, L. H. Feb. 28, 1938, No. 6206. [Class 99 (i)] [Also in Group XVII] A telescopic filling neck for a petrol tanl has combined witl one of its parts a a rubber or other flexible jointing ring e which embraces the other part b. In the form shown, the ring e is held in a gallery d secured to the par a and rendered flex ible by vertical slit, in its walls so that it may be tightened around the ring by a clamping strip or wire g. In modifica. tions the ring is surrounded by a split clamping band, or is held in an internal groove formed by a bead at the top of the tube a..
Patent GB-830765-A (GB)
Title: Improvements in or relating to electrical contact elements
Inventor: WARWICK WILLIAM ARTHUR
IPC: H01R9/24
Filed: 1958-02-28
Abstract: 830,765. Binding-posts; terminal boards. BELLING & LEE Ltd. Feb. 28, 1958, No. 6489/58. Class 38 (1). A terminal comprises a pair of plates 1, 11 at least one of which is of conducting material and which are drawn together by a nut 16 and bolt 15 to clamp a conductor 18 between them, the plate 11 being captive on the bolt 15 and having down-turned tabs 14 on opposite side edges which fit between pairs of upturned tabs 5, 6 on opposite side edges of plate 1 to form barriers which confine the conductor between the plates. Fig. 4 shows two such terminals mounted on an insulating support 20 to form a terminal block by passing down-turned tabs 9, 10 on each plate 1 through slots in the support and twisting the tabs to retain the terminals in position. The tabs 9 project below the lower face of the block and are kinked at 50 whereby the block may be snapped into apertures in a panel, such as a printed circuit panel to make connection with the conductors thereon. Barriers 24, 25, 26 are provided at the ends of the support and between the terminals. A dovetail projection 45 and recess 46, Fig. 9, are provided at opposite ends of the support which are adapted to mate respectively with a corresponding recess 46<SP>1</SP> and projection 451 on similar terminal supports whereby a multiple terminal block can be built up. More than two terminals may be mounted on each support.
Patent GB-1159437-A (GB)
Title: Temperature Alarm Device
Inventor: HERON ANDREW GEORGE
IPC: F25D29/00
Filed: 1965-10-15
Abstract: 1,159,437. Thermal switches; movable magnet switches. HERON ELECTRICAL DEVICES Ltd. 10 Oct., 1966 [15 Oct., 1965; 15 Feb., 19661] Nos. 43923/65 and 6495/66. Heading H1N. A temperature responsive switch comprises a container 32, Fig. 3, for a solidifiable liquid 18 which when melted releases a permanent magnet 33 to actuate contacts 24. The switch is particularly applied to operate a warning device in a refrigerator when a maximum temperature is reached. Suitable liquids referred to are water, glycol, benzine and paraffin wax.
Patent GB-1248956-A (GB)
Title: Improvements in musical instruments
Inventor: RAFFALI ANDRE
IPC: G10C3/22
Filed: 1968-12-04
Abstract: 1,248,956. Keyboard musical instrument. A. RAFFALI. 4 Dec., 1968, No. 6520/71. Divided out of 1,248,955. Heading G5J. A keyboard musical instrument as described in Specification 1,248,955, but wherein the claims relate to the accelerating mechanism interposed between each key and its associated hammer.
Patent GB-1494840-A (GB)
Title: Method for producing multiple-track magnetic heads
IPC: G11B5/115
Filed: 1975-02-17
Abstract: 1494840 Multiple-track magnetic heads NIPPON GAISHI KK 17 Feb 1975 [23 Feb 1974] 6561/75 Heading G5R In the manufacture of multi-track magnetic heads a shield plate 10 is located between the magnetic polepieces corresponding to two adjacent tracks by coating 9 a magnetic ferrite plate 8, Fig. 5, with at least one material selected from glass, silica, alumina, zirconia and titania to form the shield plate 10, the plate 10 having a thickness only slightly less than the distance between the adjacent polepieces between which the shield plate 10 is then inserted, then setting pieces of glass 11 on each of the boundaries between the shield plate and the adjacent polepieces, the glass 11 having a melting point so low as not to adversely affect the polepieces when the glass 11 melts, and then melting the glass 11 to bond the shield plate 10 between the adjacent polepieces by capillary action. The polepieces are produced by glass bonding ferrite core elements 1, Fig. 1, together to form a front core block (4), Fig. 2 (not shown), the back region of which is then grooved 6 for receiving the shield plates 10. The elements 1, 2 may be bonded together by heating under pressure after applying a glass paste, of glass powder and a binder, all over opposed surfaces la, 2a or preferably in the form of a stripe 1b along a centreline of one or both of surfaces 1a, 2a. Grooves 1c, 2c form a channel (5), Fig. 2 to accommodate surplus glass. A desired gap length may be obtained by application of appropriate pressure during reheating of the bonded core block (4). The ferrite plates 8 may be coated by heating after application of a past consisting of a powder, of glass, silica, alumina, zirconia and/or titania, and a binder. The plates 8 may alternatively be coated by a vapour deposition method, e.g. by a method in which a gas mixture of SiH 4 , N 2 O and an inert gas such as N 2  is subjected to a high frequency discharge to apply a silica coating. The glass used for bonding together elements 1, 2 and for coating plates 8 preferably has a thermal expansion coefficient and a hardness close to those of the ferrite of parts 1, 2, 8, the glass pieces 11 may have a similar expansion coefficient but greater or smaller hardness. After bonding plates 10 in grooves 6, the assembly is ground to expose plates 10 at the working face and then a coil-carrying back core block is applied.
Patent GB-1274123-A (GB)
Title: Frequency modulation signal demodulator
IPC: H03D3/04
Filed: 1970-02-11
Abstract: 1,274,123. Frequency discriminators; transistor pulse circuits. XEROX CORP. 11 Feb,. 1970 [17 Feb., 1969], No. 6589/70. Headings H3A and H3T A frequency discriminator of the type in which nominally constant width pulses are produced is characterized in that the constant width pulses are produced by a circuit which responds to input pulses occurring during the generation of the constant width pulses to increase their width. Incoming frequency modulated signals are fed via a pre-amplifier and equalizer, Fig. 2, to a limiter stage Q6, Q7 to produce a square wave signal, which is differenti-  ated at C 18 , R 28 , R 29 , Fig. 3. The resulting pulses are then rectified by the circuit Q9, Q10 to produce a train of unipolar pulses which switch on transistor Q11. During the time when no pulse occurs transistor Q11 is off and capacitor C 19  is charged to hold on transistor Q12 of Schmidt trigger Q12, Q13. When a pulse occurs C 19  is discharged through Q11 and trigger Q12, Q13 switches to its other state until capacitor C 19  recharges to the switching threshold of Q12 to reset the trigger. Any further input pulses occurring during the charging time of C 19  will discharge it again and will thus increase the duration of the output pulse. The output pulses are then integrated by the low pass filter to produce the demodulated output. A further circuit Q 19 , Q 20 , Q 15  produces a signal to inhibit Q 11  in the event of a carrier failure.
Patent GB-130706-A (GB)
Title: Improvements relating to Telescopic Sighting Devices.
Inventor: ALDIS HUGH LANCELOT
IPC: G02B23/14
Filed: 1916-05-09
Abstract: 130,706. Aldis, H. L. May 9, 1916. Sights.-Consists of a telescope sight having a system of co-axial lenses giving an erect image and unit magnification. In the construction shown, four similar compound lenses a, b, c, d are arranged co-axially with considerable intervals between them, cross-wires or other indexes being provided at any convenient focal position. The observer's eye, when placed on the axis at a distance from the eye lens, sees perfect continuity between the image of distant objects formed by the telescope, and the adjacent portions of the objects seen by direct vision.
Patent GB-1473477-A (GB)
Title: Collision protection structure for nuclear reactors on ships
IPC: B63B43/18
Filed: 1975-02-17
Abstract: 1473477 Nuclear-powered ships WESER AG 17 Feb 1975 [27 March 1974] 6657/75 Heading B7S [Also in Division G6]  A collision protective structure for a nuclear reactor on board a ship comprises a protective shell 7 disposed around the reactor 1, anchored firmly to the ship's body, and having the plan of a polygon with an even number of sides, pairs of plane wall parts of the shell 7 converging towards the sides of the ship so as to include an angle whose bisectrix H lies substantially transverse to the direction of the ship's travel. Advantageously, the shell 7 is constructed of solid plates, the flat surfaces of which may carry stiffening members, and which are additionally supported by materials which resist compression, e.g. concrete, applied to the shell surface and held by the section shape of the stiffening members. This leads to a preferred construction in which the protective shell is formed directly as the safety tank for the reactor. At least in the region of the, reactor, the longitudinal members of the ship parallel to the outer skin 3 are reinforced on both sides between transverse bulkheads 4 by longitudinal bulkheads 5, and are adequately stiffened by additional sections 6. The shell 7 is shown as being of square plan and positioned so that its two diagonal planes lie in one case athwartships and in the other fore-and-aft. In this'way, on being rammed substantially athwartships by another vessel, the impact energy is led past the reactor into the longitudinal strength structure of the ship. The shell 7 is arranged between the longitudinal bulkheads 5. Alternatively, it may be of rhombic form and extend to the outer skin 3, as shown by chain lines.
Patent GB-1242581-A (GB)
Title: Improvements in or relating to vehicle disc brakes
Inventor: COCHRANE ROBIN ADAM
IPC: F16D55/228
Filed: 1968-02-09
Abstract: 1,242,581. Disc brakes. GIRLING Ltd. 7 Feb., 1969 [9 Feb., 1968], No. 6659/68. Heading F2E. A caliper assembly for a disc brake comprises a caliper body formed with a gap to receive a portion of a brake disc and accommodating a pair of brake pads 8 in opposed recesses 12 shaped to allow axial movement but prevent movement in planes parallel to the brake disc, to permit insertion of a pad thicker, when new, than the minimum gap thickness X, each recess having an opening wider than the pad width but narrower than the pad length, and each pad having one end portion 13 of reduced thickness. The caliper housing comprises two halves bolted together containing pistons which actuate pads having arcuate ends.
Patent GB-974846-A (GB)
Title: Improvements in or relating to methods of strengthening hollow glass articles
IPC: H01J29/87
Filed: 1962-02-21
Abstract: <PICT:0974846/C1/1> A hollow glass object is strengthened by coating in part with a porous glaze layer obtained by spraying the heated object with glaze in the molten state, the layer having a coefficient of expansion lower than that of the glass object.  As shown, a cathode-ray tube 1 is coated over a zone 2, in which dangerous tensile stresses are liable to occur, with a porous glaze layer 3 obtained by spraying glaze in the molten state on to the tube 1 heated to about 300 DEG  C.  Preferably an initial thin layer 4 is applied, as by spray deposition of a suspension containing pulverized glaze, with the tube heated until the glaze melts.  The following compositions are given, in percentages by weight, for the tube 1: SiO2 70.3; Li2O 0.5; Na2O 7.8; K2O 7.5; BaO 11.1; Al2O3 2.5; Sb2O3 0.3.  For the layers 3 and 4: SiO2 15; B2O3 18; ZnO 8; PbO56; Al2O3 3 or a devitrifiable glaze: B2O3 22.7; ZnO 68.2; P2O5 9.1.
Patent GB-330258-A (GB)
Title: Selenium cell
IPC: H01L31/08
Filed: 1929-03-01
Abstract: 330,258. Selenophon Licht-u. Tonbildges. Feb. 9, 1929, [Convention date]. Light-sensitive cells. -In a selenium cell of the condenser type interlacing electrodes 3, 4, connected to supply wires 1 and 2 respectively, are made of a metal incapable of being wetted by molten selenium, while the plates 5 arranged between them are capable of being wetted. All the plates are insulated from each other by mica sheets 6, the selenium layer being indicated at 7. Other arrangements of electrodes (Figs. 1, 3, not shown) may be adopted.