baber/WOPTO huggingface dataset:
Patent GB-862870-A (GB)
Title: Improvements relating to information transmission systems
Inventor: HAILEY ALBERT MARTIN
IPC: G08C19/12
Filed: 1957-02-05
Abstract: 862,870. Electric selective signalling systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 24, 1958 [Feb. 5, 1957], No. 3936/57. Drawings to Specification. Class 40 (1). In an electric selective signalling system for signalling the angular position of a shaft from a field station to a central station an electric signal is produced at the field station having a frequency representing the angular position of the shaft (this being effected by a binary coded disc which selectively energizes in combination a number of relays whose contacts control the capacitance in the tank circuit of a triode amplifier) which signal is then transmitted by land line or radio to the central station where the number of oscillations that occur within a particular time period (approximately one-third of a second) are counted by a multi-cathode gas tube counter, whose cathodes, via a diode recoding network and some transistor amplifiers, control a storage and indicating device such as described in Specification 721,683, which is referred to. In a further embodiment in which the field station includes a plurality of shafts all of whose angular positions have to be transmitted to the central station a uni-selector switch is interposed at the field station between the several shafts and the oscillator and a second uni-selector synchronized with the first is interposed, at the central station, between the output of the diode re-coding network and a plurality of indicating devices corresponding to the plurality of shafts at the field station. In another embodiment the plurality of the shafts are each at a separate field station, each field station having a uni-selector switch synchronized with that at the central station, and the field stations transmit their signals in succession.
Patent GB-490226-A (GB)
Title: Improvements in washing machines
IPC: D06F39/12
Filed: 1937-02-10
Abstract: 490,226. Washing - machines. SAUNDERS, N. F. T. Feb. 10, 1937, No. 4006. [Class 138 (ii)] The tub 15 of a rotaryagitator type of washing- machine is provided with a flange 16 which rests upon a rubber or other flexible gasket 20 secured to the top of a rectangular casing 1. The gasket is provided with a bead 21 with which a downturned iron 17 on the tub flange engages. The casing 1 is secured to a bottom frame 6 formed of angle section bar and is provided with an opening 5 in which a door may be fitted. The tub is secured to a diagonal bridge member 14, which spans two pillars secured to the bottom frame, by means of a sleeve 23 engaging a screwed projection 24 formed on a gear box 25 through which the agitator shaft 22 passes. A wringer drive shaft 27 also extends upwardly from the gear box and passes through an aperture 19 in the flange 16.
Patent GB-962078-A (GB)
Title: Improvements relating to work handling mechanisms
IPC: B23F23/04
Filed: 1963-01-31
Abstract: 962,078. Gear-cutting. GLEASON WORKS. Jan. 31, 1963 [March 8, 1962], No. 4107/63. Headings B3B and B3K. [Also in Division B8] In a tooth-cutting &c. machine, a workhandling means comprises two sets of workgripping jaws 21, 22, Fig. 3, on a carriage 45 movable on rods 44 axially of a work-holder to place a workpiece on the holder with one set of jaws and to remove it with the other set, the carriage 45 being mounted on a slide 39 reciprocable (on rods 38), in a horizontal path perpendicular to the work-holder axis 16, and arms 64, 65 on the slide for moving workpieces along rails 59, 62 so that they are positioned at loading and unloading stations II, IV. The machine is of the kind disclosed in Specification 929,164, and has an hydraulically-operated expanding arbor to hold a workpiece. The arbor is carried in a slide 15, Fig. 1, movable to positions where the work axis lies on lines 16, 16<SP>1</SP>. An endless chain carrier 18 on one side of the machine carries workpieces to a position I and a similar chain carries them from an unloading position V at the other side. Each magazine is advanced by a piston 28 moving a pawl 36, Fig. 2. The pawl engages a pin 34A on the chain wheel 24 and rotates the wheel 90 degrees. On the reverse stroke, a surface 37 on the pawl engages the succeeding pin and is pushed aside. A head 33 on the piston then holds the wheel in position. The slide 39, the carriage 45 and a cam 54 for opening and closing the jaws 21, 22 are operated by hydraulic pistons. The arm 65 which moves a finished gear in an advance stroke from the unloading station IV to the chain carrier at station V has a pawl 66 to enable it to pivot aside as it passes a workpiece at the station IV on a return stroke. When the workpieces are roughcut gears, they are positioned relatively to the cutter by a plunger 73, Fig. 7, on an arm 69 which is moved in unison with the jaws 21. The plunger 73 engages a tooth slot to move the gear to a correct position, faulty operation of the plunger causing a lever 89 to actuate a switch 91. In a modification, two machines are located side-by-side and the adjacent chain carriers are omitted. Instead, the gears are moved from station V, Fig. 8, of a roughing machine to Station I of a finishing machine by a bar 93 reciprocated by a piston 95 and carrying pawls 97.
Patent GB-765254-A (GB)
Title: Apparatus for the addition of briquettes to a molten metal or alloy in a furnace
IPC: C21C1/02
Filed: 1955-02-11
Abstract: 765,254. Treating metals and alloys. HURUM, F. J. O. Feb. 11,1955, No. 4137/55. Classes 72 and 82(1) Apparatus for submerging briquettes in molten metal 2 in a furnace 1 comprises a depending rod 7 which supports a series of annular briquettes and is detachably secured by a rigid joint 11 to the inner end of a support arm 8 which is clad with refractory or heat-insulating material 10, projects through a door 3 in the furnace, and is pivotally suspended so as to be movable from outside the furnace. The upper end of the rod 7 may carry small annular briquettes 6 of refractory or slowly consumable material, whilst its enlarged head 16 may be embedded in a large briquette 17 or carry annular briquettes 5 with converse bottom surfaces. The arm 8 may be cooled internally by air or water and it may be operated mechanically or by means of a pivot ring 4 and a hand-operated loop portion 12. Reference has been directed by the Comptroller to Specification 716,856.
Patent GB-1084953-A (GB)
Title: Copolymers and processes for preparing them
Inventor: CLARK KEITH JASPER
IPC: C08F210/00
Filed: 1964-01-31
Abstract: A process for the copolymerization of butene-1 with propylene comprises polymerizing a mixture of propylene and butene-1 in the presence of a stereospecific catalyst, which is defined as one which will under equivalent conditions polymerize propylene in the absence of other monomers to polypropylene which is at least 70% insoluble in boiling heptane, and recovering a solid crystalline copolymer of propylene and butene-1 comprising 5 to 50% by wt. of randomly copolymerized propylene (defined).  The stereospecific catalyst is preferably a trivalent titanium compound activated with an aluminium alkyl compound.  Preferably the copolymer is obtained as a slurry by using a catalyst which has been heated by mutually polymerizing a 1-olefine, e.g. propylene, butene-1 or b -methylbutene-1 in the presence of the catalyst.  The weight of polymer formed in this stage is preferably between 1 and 5% by wt. of the total polymer.
Patent GB-537886-A (GB)
Title: Improvements in and relating to supports for electric lamps
IPC: H01R33/08
Filed: 1940-03-07
Abstract: 537,886. Lamp-holders. BRITISH THOMSON-HOUSTON CO., Ltd. March 7, 1940, No. 4271. Convention date, March 7, 1939. [Class 38 (i)] A holder for a tubular lamp having a pair of pin contacts at each end comprises a base member 20 carrying segmental projections 33 with a slot 32 between them to co-operate with a cover 21 with a circular opening 53 and entrance slot 52 to guide the pin contacts on insertion and rotation of the lamp into engagement with recesses 49 in contact blades 22 that are housed in slots 28 in the base member and have lateral projections 48 that carry terminals 45. The cover 21 encloses the base 20 and has a projecting portion 21<11> with a slot 63 to receive a fixing screw, the portion 21<11> being placed above or below the panel according as a surface or flush mounting is desired. The contact blades 22 are bent at 50 to engage abutments 501 in the slots 28. In a modification, the base 20 is formed with a rim inside which the cover 21 fits and the terminal plates are bent at right angles and have two holes so that the clamping screws 57 can be inserted from below or from the side. In another modification, Fig. 11, the terminal plates 122 are bent up to fit into a recess 121 and enclosed by an insulating cover plate 131 that can be bent up at the ends. A mounting- plate 140 is attached by the rivets 136 that secure the base and cover together, the modification being suitable only for flush mounting. Specification 526,713 is referred to.
Patent GB-163117-A (GB)
Title: Improvements in and relating to wireless telegraphy and telephony
IPC: H03B5/10
Filed: 1920-02-11
Abstract: 163,117. Macrorie, A. K., Airey, H. Morris-, and Shearing, G. Feb. 11, 1920. Frequency, measuring.-In a thermionic system for generating high-frequency oscillations for wireless signalling, a tuning circuit P, Q, which is tuned to the same frequency as the aerial, may include a low-voltage, low-resistance lamp E to indicate resonance, and may be calibrated to serve as a wave-meter.
Patent GB-603077-A (GB)
Title: Improvements in or relating to the manufacture of synthetic resinous tubing
IPC: B29C48/90
Filed: 1944-03-08
Abstract: 603,077. Extruding. SLAUGHTER, C. E. March 8, 1944, Nos. 4308 and 4309. Convention dates, Jan. 27, 1943, and May 17, 1943. [Class 83 (iv)] [Also in Group V] Relates to extruding tubes and as accepted is described with reference to tubes of synthetic resin or cellulose derivatives, a fluid such as air being introduced under pressure into the extruded tube to prevent its collapse until it has cooled to a self-sustaining condition, the fluid pressure being maintained by a plug within the tube at a fixed distance from the extrusion die. The tube 1 after emerging from the extrusion nozzle 12 passes through a cooling bath (not shown) and is received on a conveyer B. Air is introduced under pressure through a tube 13 and the pressure is maintained by a .plug 2 at a point where the tube is self-sustaining. As shown in Fig. 1, the plug, of woollen strands, which " floats " in the tube by virtue of the electrostatic field set up by friction with the tube, is held in position by being tied to a core 9 of soft iron wire held by the magnetic field of a solenoid 5 surrounding the tube 1. The tube may be cut at any point beyond the plug. Instead of woollen strands, the plug may be of porous rubber or solid, e.g. a rod or ball of non-magnetic material which may be slightly larger than the extruded size of the tube to expand it accurately to the required size. Alternatively, a plug of magnetic material may be directly held by the magnetic field or the plug may be tied by a wire 56 through the tube to the extrusion nozzle (Fig. 5). The plugs are pierced, if necessary, to allow a stream of air to pass.  The Specification as open to inspection under Sect. 91 describes a plug formed by a liquid such as mercury in a trap formed by bowing the extruded tube at an appropriate point. It is also stated that the invention can be used in the extrusion pf thin aluminium or other metallic tubing, lead piping, &c. This subjectmatter does not appear in the accepted Specification.
Patent GB-627758-A (GB)
Title: Improvements in mechanical stokers
IPC: F23H11/10
Filed: 1947-02-14
Abstract: 627,758. Mechanical stokers. BABCOCK & WILCOX, Ltd., and SUCKLING, J. Feb. 14, 1947, No. 4327. [Class 51 (i)] A mechanical stoker includes a grate below which is provided an air compartment with an air register of which a part that is adjustable in position for regulating the air supply to the compartment is provided with projections extending into the space within the air compartment and adapted so to disturb material accumulated in the compartment and liable to obstruct air flow through the air register as to effect dislodgement thereof through the air register from the compartment. An endless chain grate 1 is supported on longitudinally-extending skid bars 20, 30 secured to spaced cross-beams. Below the grate 1, at both its front and rear ends, Fig. 1, three pairs of apertured plates extend transversely across the grate to control the upward flow of air thereto. Each pair comprises an apertured fixed upper plate 31 and an apertured slidable lower plate 32. The upper plates 31 which are bolted to the cross-beams have upwardly extending edges 45 adapted to form shallow compartments below the grate. The three apertured lower plates 32 are movable together across the grate by a pair of coupling rods 70 operated by a hand lever 60 at the side of the furnace. Each upper or lower plate is formed with a front and a rear row of spaced rectangular bevel-edged apertures 80, or 81 respectively. Each upper plate 32 is formed with two diamond shaped projections 83, while each lower plate 31 has six projections 84 of circular cross-section which extend through apertures in the upper plate so that when the lower plates are moved fused ash tending to block the aperture is broken up and falls through.
Patent GB-1341327-A (GB)
Title: Voltage convertor
IPC: H02M3/338
Filed: 1972-01-31
Abstract: 1341327 DC-DC converters COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 31 Jan 1972 [29 Jan 1971] 4336/72 Addition to 1340791 Heading H2F A D.C.-D.C. converter comprises a transformer 12 having a first winding 12<SP>1</SP> connected in series with the emitter/collector path of a transistor 13 across a D.C. input circuit 11, a second winding 12<SP>11</SP>, from which a rectified D.C. output is obtained, and a third winding 12<SP>111</SP>, connected in the base circuit of the transistor 13. A control circuit, comprising a pair of fieldeffect transistors 16, 40, coupled via a voltage amplifier 45 is included between the D.C. output circuit and the base circuit for voltage stabilization. The circuit may operate from an input of less than 1 volt and may occupy a volume of 5 c.c.
Patent GB-317101-A (GB)
Title: Improvements in suction cylinders, or rolls, of machines for making paper, paper-board, millboard and the like
IPC: D21F3/10
Filed: 1928-02-11
Abstract: 317,101. St. Anne's Board Mill Co., Ltd., and Heys, R. B. Feb. 11, 1928. Addition to 242,864. Suction apparatus. - The suction cylinder of the parent Specification is adapted for running at high speed and to this end the longitudinal channels in the periphery are directed inwardly and rearwardly, thus providing means for retaining any liquid remaining in the channels after they have passed the end outlet or outlets with which the successively communicate. Bent strips 18, Fig. 4, of metal or other material perforated in the central zones at 19 may he inserted in the channels, allowing the moisture from the wet pulp to flow through and preventing the return of excess water to the periphery. The traps for the excess water may comprise plates 21, Fig. 6, with strips 22 bolted or otherwise secured thereto in such a way as to provide holes or recesses towards the interior of the longitudinal channels. In this arrangement the roll is mounted for high speed so as to rotate in the direction of the arrow 24, while for low speeds it is rotated in the opposite direction. One suction recess may be used or a number of recesses, and in the latter arrangement the vacuum may be progressively decreased. The band carrying the pulp or the like may contact the roll at a point on its upper surface and leave at a downwardly moving point thereof, or the arc of contact may extend from close to the lowest point of the roll to near the highest point. An endless flexible belt 11, Fig. 2, preferably of rubber, running over auxiliary rolls-12, 13 adjustable on their axes 14, 15 may be used to limit the width over which suction is applied to correspond with the width of pulp or other material carried by the band.
Patent GB-118563-A (GB)
Title: Improvements in Dies for Shaping Insulators and the like.
Inventor: BUSCH-JENSEN HOLGER OCTAVIUS
IPC: B21D22/00
Filed: 1918-03-12
Abstract: 118,563. Jensen, H. O. Busch-. March 12, 1918. Pressing plungers and dics. -Relates to dies of the kind in which an intermediate die member 1 is rigidly connected to the plunger 4 and is embraced by spring-actuated end members 2, 3, and consists in forming the parts 2, 3 as separate members so connected to each other, for example by a screw joint 5, 6, as to provide a space 7 to accommodate a substantially solid and thick flanged portion of the member 1, such part 8 being connected to the plunger 4 by bolts 10 surrounded by springs 11 bearing against the part 5.
Patent GB-643774-A (GB)
Title: An improved means for feeding and maintaining a workpiece in the operative position relative to a centreless grinding machine
IPC: B24B5/35
Filed: 1948-02-17
Abstract: 643,774. Centreless grinding machines. SCRIVENER, Ltd., A., and SCRIVENER A. Feb. 17, 1948, No. 4546. [Class 60] Means for feeding and maintaining a work-piece g in the operative position relative to the grinding wheel h of a centreless grinding machine has an end thrust stop a whose feed motion is determined by a camfaced slide b movable transversely to the direction of feed of the stop. The workpieces are fed from a magazine j and the cam slide is reciprocated by a rack e and pinion f. The slide d in which the thrust stop is rotatably mounted has a cam feeler c and is reciprocated by a hydraulic cylinder k, as described in Specification 643,715.
Patent GB-451866-A (GB)
Title: Improvements in or relating to electron discharge devices and to circuits therefor
IPC: H01J25/76
Filed: 1935-02-12
Abstract: 451,866. Electron multipliers. PERCIVAL, W. S., 6, York Mansions, York Avenue, Hanwell, Middlesex. Feb. 12, 1935, No. 4547. [Classes 39 (i) and 40 (v)] An electron multiplier comprises an electron discharge device with two target electrodes, an oscillatory circuit fed from a source between the target electrodes and a source biassing one of these electrodes relatively to the other. The Figure shows a discharge tube the target electrodes 3, 4 of which may be 1“ inches in diameter and 2 inches apart with an output coupling 11, a direct current source 12 of 20 volts and a tuned circuit 5, 6, to which may be applied from a source 9 high frequency energy of a frequency of 50 megahertz so that a peak voltage of 40 volts is developed across the circuit. One or both the electrodes 3, 4 may be coated with photo-electrically active material so that electrons emitted from one electrode are accelerated towards the other electrode and cause the emission of secondary electrons from the other electrode which are accelerated to the first electrode if the frequency of the circuit 5, 6, is chosen suitably. The process is repeated and a large output current built up. The coupling between the oscillator 9 and the tuned circuit 5, 6 is preferably such that saturation is not reached so that the current falls with the removal of the input. Proportionality between input and output is obtained by periodically stopping the flow of electrons by periodically varying the (1) anode voltage, (2) high frequency voltage by controlling the oscillator 9 or the damping of the circuit 5, 6, (3) potential of an auxiliary electrode inside or outside the discharge devices, (4) magnetic field by a coil or coils mounted inside or outside the device. The quenching preferably lasts for 1/6 of a cycle. Spurious oscillation may be eliminated or reduced by the use of sharply tuned circuits between the oscillator and the discharge device and by the use of an oscillator giving a square topped wave - form which may be obtained by a plurality of suitably damped and phased circuits tuned to harmonics. Magnetic or electrostatic focusing or concentrating of the electron stream may be used by a coil or by the use of cylindrical electrodes.
Patent GB-1134986-A (GB)
Title: Improvements relating to cartons
Inventor: WAGMAN PHILIP
IPC: B65D65/06
Filed: 1967-01-31
Abstract: 1,134,986. Envelope. M. PETRUSHKIN Ltd. 13 Sept., 1967 [31 Jan., 1967], No. 4593/67. Heading B6A. [Also in Division B8] A carton or envelope comprises a front panel, a back panel 2, 3 and a closure flap 6 which is foldable flatwise on to the outside of theback panel, the back panel being provided with a transverse slit 4, the closure flap 6 also being provided with a transverse slit 7 and with a locking tab 9 which engages in the slit 4 in the back panel when the closure flap is closed, the back panel being provided with a tongue 5 which is inserted into both slits to complete the closing of the carton. As shown the back panel is formed in two parts, one part 3 being provided with the slit and the other part 2 containing the tongue.
Patent GB-565466-A (GB)
Title: Improvements in and relating to producer gas generators
IPC: C10J3/00
Filed: 1942-04-10
Abstract: 565,466. Gas-producers. INTERNATIONAL HARVESTER CO. OF AUSTRALIA PROPRIETARY, Ltd. April 10, 1942, No. 4740. Convention date, April 10,1941. [Classes 51 (i) and 55 (i)] The hopper 5 andfuel bed 7a of the producer are each enclosed by concentric cylindrical shells, the hot gases from the fuel bed passing through the annular space 9 around the hopper, in which space ash is deposited, to an outlet 10 leading to a heat exchanger 40a, and the incoming air. passing down a conduit 11 in the heat exchanger to an annular space 15 around the fuel bed. Water is supplied by a pipe 53 to a flash boiler 50, and the steam is injected at 51 into the incoming preheated air. Below the fuel container 7 is cylinder 22 open at its upper end, and extending through an aperture 26 in the base, the air from jacket 15 passing through apertures 40 and upward through radial openings (not shown) in a grate 21. A primary tube 38 is provided and passes through the cylinder 22. The grate 21 is removably supported below the base 17 of the combustion chamber by wedges 27, which pass through apertures in supports 29 and in the cylinder 22 and engage the periphery 30 of the underside of the grate, being held in position by wedgeshaped keys 31 held in place by brackets 32, Fig. 3. The outer ends of the wedges 27 are bifurcated to take the keys 31, which may be used to remove the wedges 28 by being withdrawn, and re-inserted in the position shown in dotted lines, so that contact with bolts 33 forces the wedges outwardly. The grate drops on to pins 39a mounted on a closure plate 39 by the removal of which the grate can be lowered, and the ashes discharged. A gasket 27a is interposed between the rim of the grate and the base 17. The jackets 5b and 7 enclosing the combustion zone are readily detached from the upper shell 5a for replacement purposes.