baber/WOPTO huggingface dataset:
Patent GB-444714-A (GB)
Title: Improvements in or relating to stems for sealing conductors within electron discharge and other sealed envelope devices and to machines for making the same
IPC: H01J9/32
Filed: 1934-12-31
Abstract: 444,714. Discharge apparatus. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London.-(Assignees of Rose, G. M.; 645, Mosswood Avenue, Orange, New Jersey, U.S.A.) Dec. 31, 1934, No. 37410. Convention date, Dec. 29, 1933. [Class 39 (i)] [See also Group XI] A vitreous stem for sealing leading - in conductors within electron discharge devices and other sealed envelopes comprises an approximately fiat press 11, Fig. 1, having an exhaust opening 12, an exhausting tube 13 sealed into the press to communicate with the opening, and leading-in wires 14 passing through the press and sealed thereto. The steam is sealed around its edges to the open neck of an envelope 10 which may be of glass, as shown, or may constitute the metal anode of a discharge vessel. Pips 16, 17 are formed around the leading-in wires on either side of the press to increase the length of the seal between the glass and leading-in wires. Apparatus for making the stem comprises a press-mould for moulding the glass to shape and at the same time sealing the leading-in wires therein. A metal plate 20, Fig. 2, is provided on its upper face with a flared circular depression 21 to receive a glass ring or collar 34, and a number of holes 22 disposed in a circle concentric with the glass ring are provided to receive leading-in wires which are placed therein with their lower ends resting within pockets 28 in a movable plunger 27. A central hole 23 in the plate 20 receives an exhausting tube 13 which is positioned with its upper end within the depression 21. The glass collar 34 is softened by the flames from burners 35 and, when sufficiently plastic, is subjected to the pressure of a downwardly moving block 31 which is provided with holes 32 for the passage of the upper parts of the leading-in wires. The glass is pressed into the pocket and forms a rough disc within which the leading-in wires and exhausting tube are embedded. The disc is then subjected to a further heating and softening and is pressed into its final form by again lowering the block 31. During this final pressing the portions 15 of the leading-in wires within the glass become bowed, and the glass is forced into conical recesses 24, 33 around the entrances of the passages for the leading-in wires through the plates 20, 31 to form the pips 16, 17. To prevent the entrance to the exhausting tube from becoming closed during the press-forming operation, the opening 12 is positively ensured by a mandrel or pin 36 extending downwardly from the underside of the plate 31 into the exhausting tube 13. Alternatively, the opening at the top of the exhausting tube may be allowed to close during the pressing operation and re-opened by softening the closed end and directing a blast of air through the open end.
Patent GB-1469985-A (GB)
Title: Road rollers
IPC: E01C19/26
Filed: 1975-08-08
Abstract: 1469985 Road rollers WALLIS & STEEVENS Ltd 8 Aug 1975 [27 Aug 1974] 37474/74 Heading B7H In a road roller vehicle having a single central roll at its front spaced longitudinally of the vehicle from a pair of coaxial rolls, each roll of the pair comprises a rolling rim G carried by a circular normally vertical centre plate E which is mounted on a drive axle A so as to be tiltable relative to the axle to either side of the vertical, the roll being drivingly coupled to the axle A via a transmission assembly whose output end is fixed to the centre plate E at locations between the rim and axle by articulated joints allowing lateral movements to accommodate the tilting of the roll. The centre plate E is mounted on the axle A by a part-spherical bearing B, C including a shell D of bonded rubber. The transmission assembly comprises two coupling plates H, H<SP>1</SP> keyed to the axle A on either side of the plate E, each plate H, H<SP>1</SP> having a pair of opposed arms extending parallel to the plate E and terminating in bosses which are connected to the aligned ends of the other plates H<SP>1</SP>, H by nut and bolt means J. The bolt J engages in a part-spherical bearing K which is mounted in the eye of a socket L connected by an axially adjustable rod M to a similar eyed socket L<SP>1</SP>. The bearing K<SP>1</SP> of the latter socket L<SP>1</SP> is fixed to the centre plate by nut and bolt means P, N, N<SP>1</SP> at one end of a slot S in the plate E which accommodates the sockets L, L<SP>1</SP> and the rod M.
Patent GB-820970-A (GB)
Title: Improvements in or relating to indicator transmissions
Inventor: COX WILLIAM MAUNDER
IPC: G01P5/17
Filed: 1956-12-07
Abstract: 820,970. Indicating-apparatus; barometric gauges. SMITH & SONS (ENGLAND) Ltd., S. Nov. 25, 1957 [Dec. 7, 1956], No. 37490/56. Classes 106 (2) and 106 (4). [Also in Group XXIX] Indicating-apparatus comprises a spring blade 27 arranged to move in response to a variable and to engage a fixed abutment 28 so shaped that during one direction of movement a progressively increasing length of resilient blade 27 engages it whereby the stiffness of the spring 27 varies with its deflection in accordance with a given law. Applied to a speed indicator for a boat, pressures S and V+S derived from a pitot head mounted under the boat are applied above and below a flexible, non-resilient diaphragm 19 with a comparatively rigid centre plate 25 supporting the spring blade 27 by means of a boss 26. The centre line of the blade 27 makes line contact with a rib 28 so shaped that the deflection of a pointer 37 will be directly proportional to the speed. For fine adjustments of zero the blade 27 may be adjustably mounted on the boss 26 so as to be movable along a spindle 29 in the transmission or the spindle 29 may be adjustable in length. To avoid errors due to changes in temperature, the chambers above and below the diaphragm 19 communicate with spaces 23, 24 and the volume of the resulting spaces on opposite sides of the diaphragm are arranged to be substantially equal and subject to similar ambient temperature conditions. To enable the pointer 37 to be set to a datum position, a horizontal shaft 30 in the transmission may be carried in a pivoted frame 44 which can be rocked by a crank-pin 47 manipulated by a knob 50.
Patent GB-1201299-A (GB)
Title: Wire or strip annealing installations
Inventor: NIEHOFF FRAU ELFRIEDE
IPC: C21D9/62
Filed: 1969-07-25
Abstract: 1,201,299. Supply systems for annealing installations. F. E. NIEHOFF. 25 July, 1969 [30 July, 1968], No. 37500/69. Heading H2H. An electrical annealing installation comprises an annealing voltage supply RST, 4, 5 connected to rollers 2, 3 in contact with the wire or strip material 1 to be annealed and a control system to vary the annealing voltage in proportion to the square root of the material speed. A signal representative of this speed is obtained from the slider 6 of a rheostat P1 supplied from a tachogenerator G1 driven by the roller 3. A signal representative of the actual value of annealing voltage is provided by a rheostat P2 whose slider 8 is driven by a reversible motor 10 which also controls the positions of tappings of an auto-transformer 12 for adjusting the annealing voltage. The rheostat P2 has a non- linear characteristic corresponding to the desired relationship between material speed and annealing voltage, Fig. 7 (not shown). The sliders 6, 8 are connected to the coil of a polarized relay 7 controlling a change-over switch 13 in the supply to the motor 10, which is caused to run in one or other direction until the voltages from sliders 6, 8 are balanced. Modifications include driving the slider of rheostat P1 from a motor controlling the brush position of a drive motor for part or all of the the installation, Fig. 3 (not shown) or from a motor controlling the field winding supply of such a drive motor, Fig. 4 (not shown). Either or both of the rheostats P1, P2 may have a non-linear characteristic, suitable forms being described, Figs. 5 and 6 (not shown).
Patent GB-996463-A (GB)
Title: Railway vehicle draft-and-buffer gear arrangement
IPC: B61G9/18
Filed: 1962-10-04
Abstract: 996,463. Railway vehicle draw and buffing gear; railway vehicle undercarriages. PULLMAN Inc. Oct. 4, 1962 [Jan. 2, 1962], No. 37509/62. Headings B7L and B7T. Railway vehicle draw and buffing gear comprises a sliding centre sill 16, Figs. 1, 2, which may move longitudinally in a fixed sill 14 beneath the floor 13, and a shock absorbing long travel arrangement 17 which may be actuated firstly by relative movement between linked together sill portions or column sections 16a, 16b, and then by movement of the whole sliding sill within the fixed sill 14, the shanks of the couplers being mounted in housings 26 at each end of the sill 16 so that their centre lines are above the neutral axis n of the sill. The column section 16b has fixed to it tie plates 48 provided with a cross-bar 51 engaging in slots 52, and the section 16a is similarly provided with tie plates 49 and a cross-bar 53 engaging in slots 54. Stop members 55 are provided to co-operate with followers 57, 58, Figs. 9-11, and the shock absorber 17 (shown as a spring) is housed in the pocket 60. In operation, under buff or draw from the neutral position of Fig. 9, one of the bars 51, 53 is moved with its member 16a or 16b to compress the shock absorber 17 until the members 16a, 16b abut as in Fig. 10. Additional buff or draw force then causes the sill 16 to slide as a whole within the fixed sill, so that one or the other of keys 77 fixed beneath the vehicle floor are caused to abut either the follower 57 or the follower 58 to compress the absorber 17 to its fully compressed position, Fig. 11. In the embodiment so far described the bars 51, 53 are located intermediately of the ends of their respective slots when the sliding sill is unstressed, but it may be arranged that the bars 51, 53 engage the ends of the slots in a neutral position, so that relative movement between the members 16a, 16b occurs not only on draft but only upon the application of a buff force. In another embodiment, Figs. 12, 13, two column sections 116a and 116b constructed as before are interconnected by tie rods 137 slidably movable in opposed pairs of side plates 130, 131 mounting rubber draft pads 133 and buff pads 132. The shock absorber 17 in the central pocket is first compressed under buffing load by movement together of the sections 116a, 116b and stop members 139 carried thereon so that the pads 132 abut, and if the buffing load is further increased the sliding sill as a whole then moves within the fixed centre sill and causes keys 141 on the vehicle floor 13 to further compress 17 through the followers 57, 58. The shock absorber may employ hydraulic, friction, rubber, and pneumatic devices, and the automatic coupler shanks, Fig. 4 (not shown) are centralized by resilient pads acting on the butt of each shank.
Patent GB-826886-A (GB)
Title: Liquefied petroleum gas heat exchanger and pressure regulator
Inventor: PILLING FRANK E
IPC: F02M21/00
Filed: 1957-12-03
Abstract: 826,886. Vaporizers. CENTURY GAS EQUIPMENT CO. Dec. 3, 1957, No. 37588/57. Class 7(3) A liquefied petroleum gas heat exchanger, for converting liquefied petroleum gas into vaporized petroleum gas, comprises a generally spiral shaped duct 5, a first inlet valve 6, for permitting flow of the liquefied petroleum into the duct, a second generally spiral shaped duct 37 shaped to match the first duct and arranged to be contiguous thereto, means for circulating heated water in the second duct, a chamber 16 having an outlet port 33 means responsive to pressure in the chamber for actuating the first inlet valve, a second inlet valve 20 communicating the first duct with the chamber and pressure responsive means (diaphragm 30) for controlling the second inlet valve so as to control the pressure of vaporized liquid petroleum as it leaves the chamber through the outlet port. The heated water may be obtained from the cooling system of the engine with which the apparatus is associated. The chamber 32 is connected to the carburetter and the pressure therein is below atmospheric especially with large throttle openings. The chamber 16 communicates with the intake manifold of the engine through the outlet port 33. During starting the engine may be flooded by use of a plunger 28 which is actuated to open the valve 20. This may be accomplished manually or electrically by means of a solenoid contained in the casing 34.
Patent GB-1019374-A (GB)
Title: Treatment of molten metal
Inventor: FRANCIS JACK LINCOLN
IPC: C21C7/00
Filed: 1962-10-04
Abstract: Molten metal is conditioned, e.g. desulphurized, inoculated, carburized, nodularized or alloyed, by feeding a treatment agent in the form of a wholly consumable elongated shape forward into the molten metal e.g. in a furnace or ladle as it becomes consumed.  For conditioning cast iron, the agent is sodium or potassium carbonate in the form of a rod or bar provided with a metal reinforcement core of Fe, Cu, Ni or Mg.  The agent may be fed under spring-loading against the bottom of a furnace spout during tapping.
Patent GB-1024269-A (GB)
Title: Method of carrying out operations at an underwater installation
IPC: E21B43/01
Filed: 1964-09-16
Abstract: 1,024,269. Wells, etc.; submerged tanks. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Sept. 16, 1964 [Sept. 18, 1963], No. 37850/64. Headings E1F and E1H. [Also in Division B3] Operations are carried out on an underwater installation from a platform above the surface of the water by an underwater manipulator which engages one or more flexible guides extending from the platform to the installation at a point laterally offset from the centre line of the installation. The installation may be storage tanks or production or drilling wellheads. The manipulator 35 which is generally in accordance with Specification 920,309 is also used to secure the guides 62, 63 to posts 55, 56 (Fig. 4, not shown) at a production wellhead. The manipulator has an extensible arm 42 vertically adjustable relative to the body of the manipulator and carrying a wrench head, boring tool, milling tool, clamping arm or pipe connecting device. The arm may be actuated with the manipulator supported from the platform 11 or resting on tracks 32, 32a, members 70, 71 being disconnected from the guides if it is desired to run the manipulator on the tracks about the wellhead.
Patent GB-980358-A (GB)
Title: Improvements in or relating to conveyor systems
Inventor: BURROWS ARTHUR THOMAS CHARLES
IPC: B61B10/02
Filed: 1963-01-05
Abstract: 980,358. Conveyer systems. GEO. W. KING Ltd. Jan. 3, 1964 [Jan. 8, 1962; Jan. 5, 1963], Nos. 37878/62 and 38022/63. Heading B7L. A conveyer system includes two conveyers 18, 19, Fig. 2, each of the type having trolleys propelled along a track by dogs carried by a chain supported by trolleys running on a second track disposed vertically above the trolley track. Trolleys are transferred from conveyer 19 to conveyer 18 through switch 20. Trolleys are held by an indexing mechanism with an end station 21 from which they are moved by a transfe r chain 24 guided by skid 25 and driven from conveyer 18 by a projectable dog 26 engaging the chain of conveyer 18; a carrier device 29 on chain 24 has pivoted pusher and retainer members 30, 31. In operation, when a feeler 27 detects an empty dog on conveyer 18, a trolley is released from station 21 and also dog 26 is projected by solenoid 28 to drive chain 24 to bring the trolley through switch 20 to be engaged by the vacant dog on conveyer 18. At the indexing mechanism the next trolley is moved into position 21. At a predetermined point the dog 26 is retracted and the chain 24 moved back to its initial position by springs, weights or a motor. The chain 24 may not be reciprocatory but have several dogs 26 and carrier devices 29 and be moved successively in the same direction. In an alternative arrangement the transfer chain is driven continuously from conveyer 19 via an endless chain and sprocket mechanism, Fig. 4, not shown. The transfer chain has two sets of teeth 40, Fig. 5, with each tooth retractable by means of a ramp 42 relative to the chain; the tooth faces 41 of the two sets are directed in opposite directions, so that one set acts as pusher dogs and the other set as retainer dogs. Ramps 42 at the end holding station and adjacent the main conveyer retract the two sets respectively to prevent drive at the station and to allow the main conveyer to take over control of trolley 10, the ramp being retractable at the holding station to drive or leave at trolley there. The system can be adapted to move trucks from the main conveyer 18 to the branch conveyer 19. Specifications 736,587, 736,669, 736,670, 781,733 and 924,900 are referred to.
Patent GB-1395942-A (GB)
Title: Inorganic oxide glasses
IPC: C03C3/21
Filed: 1972-08-16
Abstract: 1395942 Phosphate glass IMPERIAL CHEMICAL INDUSTRIES Ltd 9 April 1973 [27 April 1972 16 Aug 1972] 19560/72 and 38141/72 Heading C1M An inorganic oxide glass comprises, in mole percent: 1À2-3À5 B 2 O 3 ;50-72 P 2 O 5 ; 0-30PbO; 0-5 one or more transition metal oxides, and at least 3À5 mole per cent of oxides selected from alkali metal oxides, alkaline earth metal oxides and zinc oxide, the glass comprising at least one alkali metal oxide and at least one oxide selected from alkaline earth metal oxides and zinc oxide, the aforementioned oxides forming at least 99 mole per cent of the glass. Water (which is not considered for the above percentages) may be present in the glass in amounts up to 5% by weight. The transition metal oxide may be WO 3 . The glass, which preferably has a transformation temperature below 300‹ C., may be prepared by heating the oxides or their precursors at 500-800‹ C., after an optional pre-heating at 300-500‹ C. The glass may be formed into fibres or optical articles (e.g. lenses).
Patent GB-1039020-A (GB)
Title: Process for the preparation of 5-nitrofurfuraldehyde diacetate
Inventor: TURNER JOHN CAMERON
IPC: C07D307/71
Filed: 1964-09-21
Abstract: 5-Nitrofurfuraldehyde diacetate is prepared by the nitration of furfuraldehyde with phosphoric acid and an alkali metal nitrate in the presence of acetic anhydride.  In a preferred process a mixture of furfuraldehyde, acetic anhydride and sodium nitrate is added to a mixture of approximately 100% phosphoric acid and acetic anhydride to effect nitration at a temperature of 30 DEG  to 50 DEG  C.  N - (5 - Nitro - 2 - furfurylidene) - 1 - amino-hydantoin, i.e. nitrofurantoin, may be prepared by reacting 5-nitrofurfuraldehyde diacetate with the reaction product obtained by the reaction of potassium cyanate with ethyl hydrazino-acetic acid ester hydrochloride.
Patent GB-841168-A (GB)
Title: Improvements in rotary feeders
Inventor: PICKUP HARRY
IPC: B65G53/46
Filed: 1957-12-11
Abstract: 841,168. Pneumatic conveyers. SIMON Ltd., H. Dec. 11, 1958 [Dec. 11, 1957], No. 38477/57. Class 78 (1). In a pocketed rotary feeder a for powdered and like materials of the kind wherein the ducts c, d through which the materials are passed to and from the rotor are substantially sealed by the rotor, diametrically-opposite parts of the rotor casing b are provided with ports f, h leading to a connecting pipe g in order to reduce the loss of high pressure air from the conveyer conduit e.
Patent GB-920083-A (GB)
Title: Improvements in or relating to telecommunication switching arrangements
Inventor: HARTLEY GEORGE CLIFFORD
IPC: H01H67/26
Filed: 1958-11-28
Abstract: 920,083. Automatic exchange equipment. STANDARD TELEPHONES & CABLES Ltd. Nov. 27, 1959 [Nov. 28, 1958], No. 38477/58. Class 40 (4). In a switching arrangement comprising three or more stages of co-ordinate multi-switches in tandem in which, as described in Specification 794,812, each multi-switch of a stage other than the last has its outlets extending one to each of a corresponding number of different multiswitches of the next stage and each multiswitch of a stage other than the first has its inlets arriving one from each of a corresponding number of different multi-switches of the preceding stage, and in which, as described in Specification 810,392, each multi-switch is in the shape of a rectangular slab with the inlets connected to wires extending from one edge of the slab and the outlets to wires extending from an adjacent edge thereof, the multi-switches of the second stages B1 . . . Bn are oriented in planes perpendicular to those in which the multi-switches of the first stage A1 . . . Am are oriented, and so on for successive stages, so that the outlet wires of one stage can be directly connected by relatively short connections to the inlet wires of the next stage.
Patent GB-345215-A (GB)
Title: Improvements in and relating to apparatus for producing artificial fog
IPC: C06D3/00
Filed: 1929-12-17
Abstract: 345,215. Producing artificial fog. HANSEATISCHE APPARATEBAU-GES. VORM. L. VON BREMEN & CO., Werk Belvedere, Kiel, Germany. Dec. 17, 1929, No. 38697. Convention date, Dec. 17, 1928. [Class 119.] Relates to apparatus for producing artificial fog by the discharge of a fog-forming acid under gaseous pressure caused by the addition to the fog-forming acid, such as a solution of sulphur trioxide in chlorosulphonic acid of substances such as formic or oxalic acid. According to the invention the addition is controlled by the gaseous pressure in the receptacle containing the fog-forming acid. As shown, the fog-forming acid is contained in a receptacle 3, and the gasgenerating acid in a chamber 1. The action is started by the unscrewing of a set screw 21, allowing a lever 18 to swing up about its pivot 19 under the influence of a spring 11, which lifts a central tube 4 connected to the lever 18 by a pin 20. The lifting of the tube 4 opens a valve 14 between the receptacle 3 and a nozzle 5 ; and at the same time a shoulder 22 on the tube opens another valve 6 admitting gas-generating acid from the chamber 1 to the receptacle 3 through slots 23 in a tube 13. The gas pressure thus generated forces the fogforming acid out through a hole 25, the valve 14, the tube 4 and the nozzle 5. The pressure also acts on a bellows 16, and when the pressure rises beyond a certain value, the plunger 24 of the bellows rocks the lever 18 partly back, thereby shutting the valve 6 but not the valve 14. Admission of gas-generating acid is thus cut off until the pressure falls again, while the ejection of the fog-forming acid proceeds without interruption under a pressure maintained approximately constant.
Patent GB-1280493-A (GB)
Title: Catch for vehicle doors
IPC: E05B65/32
Filed: 1969-08-01
Abstract: 1280493 Catches SASEB SA 1 Aug 1969 [3 Aug 1968] 38704/69 Heading E2A A catch for a vehicle door comprises a forked catch element and a striking plate, the striking plate 48 consists of a plastics body part connected to a metallic plate 52, which has holes to receive screws for attaching the striking plate to the vehicle, one of the holes extending through a metallic sleeve 50 on which the catch element 4 is engageable the plastics body part of the striking plate including an integral spring tongue 54 which contacts the catch element when the catch is fastened, the spring tongue being backed by a resilient element 55 housed in a cavity in the plastics body part and compressed when the spring tongue 54 contacts the catch element 4. The resilient element 55 comprises a small block of rubber or other elastomeric material or a metallic blade or helical spring. The catch element 4 comprises a bifurcated member mounted on a shaft 2, the element may be made of metal covered by plastics material. The spring tongue may be made of metal.