baber/WOPTO huggingface dataset:
Patent GB-722040-A (GB)
Title: Improvements in and relating to tools for sealing the ends of tubular elements subjected to internal pressure
IPC: F16L55/115
Filed: 1952-04-07
Abstract: 722,040. Devices for stopping pipes. AKTIEBOLAGET SVENSKA MASKINVERKEN April 7, 1952. [April 16, 1951] No. 8858/52. Class 99 (2). A tool for removably securing a sealing block 25 over the open end of a tube 12 subjected to internal pressure comprises a body 1 having rigid, spacedapart side walls 30, 31 provided with opposed wedge surfaces 3, 4 which may be plain or constitute parts of a cone, converging towards each other and spaced axially from a transverse member 15 connecting the walls 30, 31, and jaw members 10, 11 which slidably engage the surfaces 3, 4 and have inner gripping surfaces 33, e.g. formed by teeth. There are means, such as a spindle 13 screwed into the member 15, which are operable to press the block 25 into sealing engagement with the end of the tube and which by reaction on the member 15 urge the body 1 in a direction to force the jaws 10, 11 into gripping engagement with the wall of the tube. The jaws 10, 11 may be curved in cross-section and secured to resilient arms 6, 7 connected by a cross-piece 5, and a compression spring 21 may be disposed about the spindle 13 and between the member 15 and the cross-piece 5. A head 22 of the spindle 13 may bear on the block 25 which may be provided with a passage 34 for a pressure medium and seat on the end of the tube with the interposition of a sealing washer 26. In operation, the jaws 10, 11 are opened by turning the spindle 13 to draw up the head 22 into contact with the cross-piece 5 and compress the spring 21, the tool then being positioned over the end of the tube 12. By turning the spindle 13 in the opposite direction and with the block 25 in place the spring expands to depress the cross-piece 5 and the arms 6, 7 so that the wedge-action of the surfaces 3, 4 presses the jaws 10, 11 against the tube, and the spindle exerts pressure on the block. In a modification, the spring 21 is replaced by a sleeve screwed into the cross-piece 5 and into which the spindle is screwed, the sleeve being turned independently of the spindle 13 to operate the jaws 10, 11.
Patent GB-622622-A (GB)
Title: Child's push-chair, convertible into a perambulator, which is also usable as a bath or a cot
IPC: B62B9/12
Filed: 1947-04-01
Abstract: 622,622. Convertible push-chairs. MILLER, S. H. April 1, 1947, No. 8875. [Class 108 (i)] A child's push-chair has a wheeled chassis 12 with a detachable folding chair, secured through the legs 20, 21 by withdrawable pins, and a folding handle 26. The chair may be removed and replaced by the body 40, secured to the chassis by withdrawable pins 34, through the legs 42, 43, which can be used with suitable fittings as a perambulator body or cot, or a bath.
Patent GB-1523034-A (GB)
Title: Submersible structures
IPC: E02D31/06
Filed: 1977-03-07
Abstract: 1523034 Protecting submerged structures PLESSEY CO Ltd 7 March 1977 [6 March 1976] 09056/76 Heading EIH A casing for preventing corrosion of submersible structures comprises a material 5, Fig. 1, of open cell construction, and a sacrificial anode 4 which is in electrical contact with the structure. The anode is a gauze of zinc, magnesium, aluminium or an alloy of these metals and is attached to a fibreglass lining 3. Flanges 6 assist keying and the foam contains hollow polymer spheres for buoyancy and an anti-fouling material. A covering of glass fibre 8 is provided. Fig. 2, (not shown), illustrates a casing for a hot oil riser pipe.
Patent GB-293131-A (GB)
Title: Improvements in or relating to electrically-operated sound transmitting, reproducing, or recording devices
IPC: H04R11/00
Filed: 1927-04-01
Abstract: 293,131. Trouton, M., and Wireless Music, Ltd. April 1, 1927. Magnetic instruments. -In a telephone or like instrument in which an armature or reed moves about a real or virtual axis, the armature and co-operating pole are so constructed and arranged that that portion of the armature nearest the axis would touch the pole surface before, or approximately simultaneously with, the portion furthest from said axis. In one instrument described, the axis about which the magnet pole is adjusted lies between the pole and the support for the armature or reed. In the reed instrument shown in Figs. 1, 2, the reed n, shown in dotted lines, is supported on the flat upper surface c of a pillar a provided with lugs e on which is pivotally mounted the magnet system, comprising a U- shaped permanent magnet f with laminated polepieces g surrounded by coils h and separated by an a,ir-gap k above which the reed is arranged. The magnet system is adjustable by a screw l about the axis o, which is slightly below the reed support and at a distance from the pole determined by formulµ given in the Specification. In a modification, the correct angular relation between the reed and pole for one amplitude of vibration may be given during manufacture and a translational adjustment provided. In a further modification, a vibratory member projects at right angles from a cross-bar, clamped at its ends, the part of the vibratory member nearer the cross-bar being stiffened by webs, the remainder, which is relatively flexible, constituting the armature. The torsion of the cross-bar provides the requisite restoring force. The magnet system is pivoted for adjustment purposes about an axis, which may be coincident with the axis of rotation of the armature or at substantially the same distance from the nearer edge of the pole surface as the axis of rotation of the armature. The Provisional Specification also describes an instrument in which separate means are provided for adjusting the magnet system and the inclination of the need. The U-shaped magnet carries a cylindrical guide member which moves in bearings integral with the base piece. Other modifications are suggested in the Provisional Specification.
Patent GB-410954-A (GB)
Title: Improvements in or relating to electric clock systems and method of producing timed electrical impulses therein
IPC: G04C13/03
Filed: 1933-03-25
Abstract: 410,954. Valve amplifying circuits. INTERNATIONAL TIME RECORDING CO. OF NEW YORK, Endicott, New York, U.S.A.-(Assignees of Lowkrantz, G. ; 203, Grant Avenue, Endicott, New York, U.S.A.) March 25, 1933, No. 9070. Convention date, March 28, 1932. [Class 40 (v).] A method of producing timed electrical impulses in an electric clock system, includes means for varying the capacity of a condenser at timed intervals, the changes in capacity being used to effect current variations at periodic times. A system for carrying out this method includes a pendulum carrying a condenser plate which is oscillated with the pendulum past a fixed condenser plate, thus varying the grid circuit of a thermionic valve. The invention is illustrated as applied to the synchronizing clock system of Specification 236,199, [Class 139]: one plate 32 of a condenser C-1 is attached to the seconds pendulum 38 in the master clock and swings past the other fixed plate 33. The variations in capacity are used through valve 36 to close contacts 22 once per second, these impulses being used as in the prior case to step-on any slow secondary clocks over line A and contacts 27 just prior to the synchronizing instant. In a modification, a three plate condenser is used, one plate on the pendulum swinging between two fixed plates. The secondary clocks may be of the ratchet and pawl type shown in Specification 254,269, [Class 139]. Transformer 42, 43 is fed from A.C. supply 44. When the plate 32 and pendulum 38 are in the dotted position of Fig. 4, the potential of grid 35 is zero with respect to the filament 45 and almost maximum current flows from plate 47. This gives a pulsating direct current which charges condenser C-3. When plate 32 is directly over plate 33 a voltage is given to grid 35. The phase relation between windings 42 and 48 is such that when the plate 47 is +ve the grid is -ve and vice versa. If while plate 47 is + ve, the potential of the grid is -ve and greater than -e (plates 32 and 33 adjacent), no current flows from the plate. When the grid during the next alternation of the pendulum becomes + ve, the plate potential has reversed and still no current will flow. Thus when the pendulum is at either end of its swing, current flows in the plate circuit but is interrupted each time the pendulum passes through the vertical ; whereby magnet 23 is energized and contacts 22 are closed synchronously with the pendulum's swing.
Patent GB-550704-A (GB)
Title: Improvements in or relating to electrically heated soldering apparatus
IPC: B23K3/03
Filed: 1941-07-18
Abstract: 550,704. Electric soldering tools. STANDARD TELEPHONES & CABLES Ltd., (trading as STANELCO PRODUCTS), and WARD, G. L. July 18, 1941, No. 9099. [Class 39 (iii)] [Also in Group XXII] Two conducting arms 11, 12 extend forward from a clamp 13, the upper arm 11 carrying a transverse bit holder 14 having a slot of keyhole section to receive, in the lower part, a comb-shaped bit 17, and, in the upper part, a carbon rod which constitutes the heating element. One end of the rod is pointed to centre it, and the other end is fitted with an insulating sleeve 19 of " Vitreosil " (Registered Trade Mark) which also centres it, so that it is in contact only at its ends with the bit holder and a silver-steel conducting plug 20 respectively. A low-voltage supply is used.
Patent GB-435476-A (GB)
Title: Improvements in refrigerating cabinets
IPC: F25D3/12
Filed: 1934-03-23
Abstract: 435,476. Refrigerating. BOSSINI, R. F., 398, Uxbridge Road, Shepherds Bush, London. March 23, 1934, Nos. 9188 and 19735. [Class 29] Heat is transferred from the storage space of a refrigerator cabinet to solid carbon dioxide by a non-freezing and non-vaporizable liquid, e.g., alcohol, the circulation of which is stopped by a thermostat when the temperature in the space falls below a predetermined value. The ice may be stored in a box b having a vapour vent pipe controlled by a thermostat j and connected by a pipe g with a liquid tank f, and a heat-insulated jacket, the space between the box and the jacket being connected to the tank by circulation pipes h<1>, h<2>. The box is provided with a cover having a loaded relief valve k<1>. In operation, the vapour pressure in the box forces the liquid from the tank into the jacket space and the liquid circulates thermosyphonically via the pipes h<1>, h<2>. When the temperature in the storage space reaches the predetermined low value, the thermostat j opens the vent pipe thus releasing the pressure in the box and causing the liquid to sink from the jacket space into the tank. In a modification, the liquid is forced from the tank into a space in the bottom of the box and circulates through a coil disposed in the storage space. In another arrangement, the jacket space e<1>, Fig. 3, is connected by circulation pipes n<1>, n<2> to an outer jacket space communicating through an aperture with a reservoir r. In a further modification, the jacket spaces are connected by ducts s, t, Fig. 5, and the circulation is stopped when the predetermined low temperature is reached by a plate-valve u operated through linkage from a thermostat v. In a still further modification, the liquid circulates between a coil in the ice box and another in the storage space, the flow being regulated by a thermostatically-operated valve.
Patent GB-778667-A (GB)
Title: Improvements in or relating to compressor blade root fixings
Inventor: BATTLE NORMAN
IPC: F04D29/32
Filed: 1954-03-29
Abstract: 778,667. Compressor blades. ROLLSROYCE, Ltd. March 29, 1955 [March 29, 1954], No. 9194/54. Class 110 (3). A blade of an axial-flow compressor is made of plastics material and has an enlarged root portion of dovetail shape which is curved chordwise of the blade in a circular arc and which engages in a correspondingly-curved slot in the rotor or stator in which the blade is to be mounted, the curvature being in the same sense as that of the camber line of the blade, the dovetail root being faired smoothly into the aerofoil section of the blade. The root portion 13 of the blade 12 is of dovetail cross-section and is curved as shown clearly in Fig. 2 and the slot 11 in the rotor disc 10 is correspondingly shaped and curved. The camber line of each aerofoil section of the blade may be a circular arc, the cylindrical surface through which forms a continuation of the cylindrical surface through the centre of the root portion. The Provisional Specification refers also to turbine blades and to blades having roots of bulb shape.
Patent GB-893980-A (GB)
Title: Electrical connector particularly for printed circuit boards
IPC: H01R12/72
Filed: 1960-03-16
Abstract: 893,980. Two-part couplings. BURNDY CORPORATION. March 16, 1960 [March 23, 1959], No. 9199/60. Class 38 (1). An electrical contact member comprises a flat body 12 with an integral, reversely-bent contactfinger 22 at one end biased away from the body by an integral reinforcing finger 24 extending from an opening 25 for engagement with a projection in a connector body. The other end of the body is formed with a wire-attaching portion 14. Fig. 3 shows the plastic insulating body 28 of a connector with slots 32 into each of which a contact member as above may be inserted until a locking-finger 20 struck up from the body 12 thereof abuts a shoulder 46. At this point the front edge of aperture 25 fits over a ramp projection 38 in slot 32 to prevent withdrawal of the contact. Several contacts are arranged in line on opposite sides of a longitudinal slot in the body 28 adapted to receive a printed circuit panel, correct insertion of the latter being ensured by an orienting stub located in a pair of opposed slots 32 and which enters a slot in the panel (Figs. 6 and 7, not shown).
Patent GB-753888-A (GB)
Title: Improvements in the manufacture of bearing cages for anti-friction bearings, made ofartificial materials, and in bearing cages so manufactured
IPC: B29C45/44
Filed: 1954-03-30
Abstract: 753,888. Bearing cages. DURKOPPWERKE AKT.-GES. March 30, 1954 [April 2, 1953], No. 9214/54. Class 12 (1). [Also in Group V] A cage for the rolling elements of bearings, having rings a joined by parallel connecting bars b defining roller-receiving pocket c, is made by injectionmoulding thermoplastic or thermosetting material. The cage may be made of polyamide or polyurethane.
Patent GB-646134-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J13/48
Filed: 1947-04-08
Abstract: 646,134. Metal-vapour discharge apparatus. PHILIPS LAMPS, Ltd. April 8, 1947, No. 9314. Convention date, July 29, 1944. [Class 39 (i)] In an electric discharge tube of the kind in which an ignition electrode consisting of a non- insulating member connected to a supply wire and surrounded by insulating material, is partly immersed in a liquid or solid cathode, the insulating covering of the ignition electrode is coated, from a level above the surface of the cathode down to a short distance therefrom, with a non- insulating layer which is conductively connected to the supply wire attached to the non-insulating member within the ignition electrode. The distance between the cathode surface and the non-insulating layer is such as to ensure that this layer contacts a layer of precipitate which tends to form in the course of time on the outside of the ignition electrode. The non-insulating member comprises a conductor or semi-conductor which may either be in contact with the insulation, or located inside an insulating envelope containing a gas or vapour which breaks down at high voltage. As shown, the ignition electrode immersed in a mercury cathode 2 comprises a quartz tube 5 partly filled with mercury 6. A nickel layer 7 on the quartz tube 5 is connected to the supply wire 4. Where a solid cathode is used, this may be made by pouring molten metal into the vessel and allowing it to solidify.
Patent GB-1032219-A (GB)
Title: Methods of producing foam-insulated products
IPC: B29C44/34
Filed: 1964-03-05
Abstract: A method of producing a foam insulated product comprises introducing into a mould formed by the walls of an insulation space a mixture of materials capable of reaction to form a synthetic resin foam, and effecting the reaction of the materials in the insulation space under the influence of heat generated within the reactive mixture by the introduction of electromagnetic field energy into the insulation space from a microwave antenna inserted into the insulation space. The mode of the electromagnetic field energy may repeatedly be charged by a rotary electromagnetic stirrer device.  Polyurethane foam forming material is described but other types of material can be used, especially those whose reaction is exothermic, e.g. epoxy resins.
Patent GB-403936-A (GB)
Title: Improvements in flow controlling devices
IPC: G01F23/00
Filed: 1932-04-01
Abstract: 403,936. Weighing-apparatus. MIAG MUHLENBAU UND INDUSTRIE AKT.- GES., 41, Rossstrasse, Brunswick, Germany.- (Assignees of Moog, O.; 9, Cellerstrasse, Brunswick, Germany.) April 1, 1932, No. 9369. Void [Abridged as open to inspection under Sect. 91 of the Acts, April 2, 1932]. [Class 143.] In apparatus for automatically controlling the rate of flow of a material from a container by means of a controlling device loaded by the flowing material, the adjustment of the inlet or outlet of the container is effected from the controlling device by a servo-motor. As shown in Fig. 2, a hopper 1 is provided with a rotary feed-roller 2 driven by a servo-motor comprising a variable-speed friction-gear of known kind 11, 10, 12, the idle roller 10 being displaced by the movement of a control valve 8 operated by the movement of a spring-suspended member 5 in the path of the material flowing in a receptacle 3. The feed roller 2 may be inserted at the outlet of the container 3. The feed roller may be replaced by a conveyer, band, worm, elevator &c. In Fig. 5, material in a storage container 1 is discharged by a tipping container 4 of an automatic weighing machine, this tipping container returning to its filling position when the head h of material in the receptacle 3 has sunk below the opening of the tipping container in its tipped position. The head h is regulated by a discharge valve 2 moved by a servo-motor 10 controlled by a valve 8 connected to a lever arm 7 of an impact plate 5. The plate 5 is balanced by a spring 6 and weights 14. In a modification the outlet of the container 1 is controlled by the slide 2 through the material falling on the impact plate 5, the material from the plate 5 being discharged into the tipping container 4 and then emptied into the receptacle 3. In further modifications the variable speed gear 11, 10, 12 and rotary feed roller 2, Fig. 2, may be replaced by the servo-motor 10, Fig. 5, and a sector-shaped valve respectively. The sector-shaped valve may be placed in the discharge outlet of the container 1 or 3. A hydraulic piston, receiving fluid pressure from the servo-motor 10, may be connected to a sliding valve 4 so that it is opened by the fluid-pressure and closed by weights. Several pistons may be supplied by fluid-pressure from the servo-motor and the valves may be weighted differently so that they may be raised in succession. The pistons may operate a signal when the valve is raised or cut in an electric motor, for setting other machines in operation &c.
Patent GB-108306-A (GB)
Title: Improvements in or relating to Doors for Coke Ovens and the like.
Inventor: KOPPERS HEINRICH
IPC: C10B25/06
Filed: 1917-06-29
Abstract: 108,306. Koppers, H. July 22, 1916, [Convention date]. Doors and door frames.-In a door for coke-ovens, which is sealed by a clay filling, the joint with the seating at the sides or bottom g is flush with the outer face of the door, and at the top h with the inner face of the lining f. The door can thus be removed, after the joint has been broken, by a direct vertical pull. The flanges on the framework of the door are inclined to form triangular spaces in which the clay filling is packed, and inclined portions are provided to connect the top and side seatings.
Patent GB-947828-A (GB)
Title: Improvements in ultrasonic-wave painting machines
IPC: B05B5/025
Filed: 1962-03-12
Abstract: 947,828. Ultrasonic atomizers. KABUSHIKI KAISHA KOPARU KOKI SEISAKUSHO. March 12, 1962 [March 11, 1961; April 27, 1961 ; July 8, 1961; Sept. 22, 1961], No. 9443/62. Heading B2F. An ultrasonic-wave spray producer comprises in combination, an ultrasonic-wave generator, a vibrating element actuated by the generator, a vibrating plate fixed to the vibrating element over a thin metal plate interposed therebetween so as to effect acoustic matching of the vibrating element and the vibrating plate, a paint supplying means to form a paint film on the working surface of the vibrating plate, a high voltage D.C. supply connected to the vibrating plate and the article being painted, the parts of the combination being so arranged that paint is atomized by the ultrasonic vibrations and projected with the co-operation of the electrostatic field to the article to be painted. In Fig. 2 the vibrating element 7, connected through an isolating transformer 11 to an ultrasonic wave generator 8, is fixed to the thin metal plate 13 and vibrating plate 5. Other embodiments of the vibratory atomizer are described, Figs. 3, 4 (not shown), wherein the plate 5 is a circular disc or saucer shaped and wherein a frustoconical horn is fitted between the plate 5 and element 7. In an embodiment, Fig. 1, a chamber 3 of cylinder 2 contains the element 7 while the rear chamber 4 contains the isolating transformer 11 connected to generator 8. The plate 5 is connected to a high voltage source 12. The frequency of oscillation may be 40 kc./s. This may be continuously variable over a frequency range by means of a motor driven tuning condenser VC (Fig. 2), and the oscillation may be intermittently stopped, by motor driven cam operated switch SW which periodically connects the suppressor grid G3 to a negative potential, so allowing the paint film to flow evenly over the plate 5 during cessation of oscillation. The varying frequency also prevents points of high and low density of ultrasonic wave energy on the plate 5 becoming static as with constant frequency operation.
Patent GB-169734-A (GB)
Title: Improvements in and relating to machines for making articles of glass
IPC: C03B9/40
Filed: 1920-04-01
Abstract: 169,734. Miller, W. J. April 1, 1920. Blowing; delivering molten metal.-Relates to machines for forming glassware of the type in which the moulds are carried on a rotary table, the aim being to adapt such a machine for use with a continuously flowing stream of molten glass. According to the invention, the mouldtable is in continuous motion with reference to some moving part of the machine. In the form shown in Figs. 1 and 2, the mould-table C is driven by gearing 9, 10, 13, 14 from a motor 12 mounted on a plate B which is oscillated about the axis 1 by a cam 15. The result of the combination of the continuous rotary motion relative to the plate B with the oscillation of the plate B is to cause each mould E to lag or stop when below the feed opening F. In another form, a variable rotary speed is imparted to the mould-table by eccentric gearing.