baber/WOPTO huggingface dataset:
Patent GB-596895-A (GB)
Title: Automatic infeed and ejecting attachment for grinding machines
IPC: B24B41/00
Filed: 1945-08-03
Abstract: 596,895. Feeding articles from stacks or piles. HECKETHORN, J. E., LEONARD, E. J., BOURG, A. B., and HECKETHORN MANUFACTURING & SUPPLY CO. Aug. 3, 1945, No. 20014. [Class 117] [Also in Group XXIII] A centreless grinder (see Group XXIII), has an automatic work feed which is synchronised with the automatic removal of the work and automatic feed of the control wheel. An article 40 from a vertical feed hopper 42 is pushed on to a work rest 20 by a feed plunger 45, Fig. 1, reciprocated in a plunger box 44 by a rod 49 connected to one end of a lever 50 fixed to a shaft 51 oscillated by a crank 60, Fig. 2, fixed to its other end. This crank is attached to spring tube 58 containing a pull rod 57 with a head 59 between which and the top of the tube is confined a compression spring 61. The pull rod 57 is connected to a pivoted lever 55 lifted by a cam 31 on a driven shaft 28. To stop the motion of the feed plunger while still rotating the shaft 28 the spring tube 58 is held so that although the rod 57 can still move against the action of the spring 61 the crank 60 is stationary.
Patent GB-675331-A (GB)
Title: Improved gas-bubble pump for continuously-operating absorption-type refrigerating apparatus
Inventor: FARNER WILLI
IPC: F25B33/00
Filed: 1950-08-11
Abstract: 675,331. Refrigerating. FARNER-WERKE AKT.-GES. Aug. 11, 1950, No. 20043/50. Class 29 The gas-bubble pump 5 of a continuouscycle inert gas absorption refrigerating apparatus has a vertical portion 3 disposed concentrically about the heating device 1 and an enlargement at the level of the pump inlet branch 16 to slow down the current at this point. The tube 3 is extended downwardly at 17 to form a pocket for impurities. The electric heater 1 is arranged in a tube 2 extending into the boiler 4.
Patent GB-1479314-A (GB)
Title: Rack and pinion steering mechanism
IPC: F16H19/04
Filed: 1974-05-07
Abstract: 1479314 Toothed gearing CAM GEARS Ltd 18 April 1975 [7 May 1974] 20046/74 Heading F2Q A rack and pinion steering mechanism for a vehicle comprises an axially fixed primary pinion 2 adapted to be rotated by a vehicle steering wheel, a secondary pinion 14 meshing a rack 20 and driven from primary pinion 2 through a gear-wheel 16, and cam means 22, 24 responsive to rotation of the primary pinion 2 to effect axial displacement of the secondary pinion 14 and gear-wheel 16 during their rotation, there being at least one set of mutually engaging helical teeth whereby the axial movement produces variation in the movement ratio between the primary pinion 2 and the rack 20. Either the secondary pinion 14 and rack 20, or the primary pinion 2 and gear-wheel 16 may be coupled by helical teeth or both gear sets may have helical teeth. The cam track 22 is helical and either of the same hand as that of the helical gears or of opposite hand thereto.
Patent GB-1040837-A (GB)
Title: Electromechanical transducers
IPC: H04R23/00
Filed: 1963-05-21
Abstract: 1,040,837. Semi-conductor devices. WESTERN ELECTRIC CO. Inc. May 21, 1963 [Aug. 13, 1962], No. 20095/63. Heading H1K. [Also in Divisions G1 and H4] An electro-mechanical transducer comprises a transistor having emitter and collector junctions, means for applying stress to the transistor so as to produce a strain across the junctions, and electrical means for deriving an electrical output from the transistor responsive to the applied stress. The stress may be applied by means of a hard pointed member 11 as shown, or a cantilever member to which the transistor is fixed, Fig. 3 (not shown), or a diaphragm, Figs. 2 and 4 (not shown).
Patent GB-494194-A (GB)
Title: Improvements in and relating to method of and apparatus for applying closure caps or the like to containers
IPC: B21D51/34
Filed: 1937-07-20
Abstract: 494,194. Capping bottles and like containers. BARLOW, R., and STUCHBERRY, A. L. July 20, 1937, No. 20122. [Classes 125 (ii) and 125 (iii)] A closure cap 37 with a peripheral flange 38 or tongues is applied to a bottle 35 or other container having a shoulder 36 on the wall near its mouth, by means of an apparatus 11 with radially moving jaws 26 or dies which curl the flange inwardly about the shoulder by the operation of a lost-motion mechanism. A cylinder 16 can slide in a bore in the casting 11 and consists of two parts screwed together with a cylindrical chamber between them to contain the head 19 of a rod 20 which at its lower end carries the plunger 22 to engage the cap 37. The rod 20 passes through a member 23 able to slide in a cylindrical bore in the casting 11 and forced apart from the cylinder 16 by a spring 25. A conical recess in the member 23 leaves a rim with a sloping surface engaging sloping faces of jaws or curling dies 26 on rods 27 normally held outwards by springs 29. The bottle or other container with its cap is placed on a resilient table 3 clamped to the pillar 2 beneath the casting 11 which is also clamped. Depression of the pedal 8 causes the cylinder 16 to descend so that the rim of the member 23 forces the jaws 26 to move inwards against the action of the springs 29 to engage the flange 38 of the cap. Continued depression of the cylinder 16 takes up the lost motion connection between the head 19 and the end of its cylindrical chamber, and forces the plunger 22 on to the top of the cap against the action of the spring 25; this forces the cap and bottle downwards so that the shoulders 31 on the jaws 26 cause the edge of the flange 38 to curl inwardly round the curled shoulder 36 on the bottle. A circular tongue 37a and the part of the cap immediately round it are depressed below the plane of the top of the cap by the shape of the plunger 22. In a modification the curling jaws may be moved upwards to effect the curling operation, and the resilient table 3 may be lifted to its proper position after the bottle is placed on it, by a cam operated by the pedal 8. The method of securing closures may be applied to rectangular containers. Specification 494,219 is referred to.
Patent GB-356852-A (GB)
Title: Machine for manufacturing quadruple conductors for telephone cables
IPC: H01B13/02
Filed: 1930-07-02
Abstract: 356,852. Cables. ALLGEMEINE ELEKTRICITATS-GES., 2, Friedrich Karl- Ufer, Berlin. July 2, 1930, No. 20124. Convention date, July 3, 1929. [Class 36.] In a machine for twisting up D.M. quadruple conductors, each pair of conductors is twisted by mounting two conductor-carrying reels in a yoke and rotating them about the yoke axis. The two pairs are twisted up by rotating the two yokes about a common axis of the machine. The winding drum is mounted in bearings in a frame and rotates only about its own axis. The machine may be used for making quadruple conductors with star twists by replacing the two reels in each yoke by a single reel and using two other narrow yokes each with one reel. By means of gearing adapted to be changed by electromagnetic or hand-operated clutches, the pitch of the pairs may be changed without stopping the machine, and the speed of the spinner is regulated automatically so that the pitch of the cotton spirals remains the same for different twists. A brake is mounted between the two reels of each yoke to secure uniform breaking of each of the conductors forming a pair. As shown in Fig. 1, frames 11, 12 carrying yokes 7, 8 are mounted on a main shaft 3 which drives the shafts 5, 6 of the yokes through fixed toothed wheels 41, 4<11>, 4<111> and intermediate pinions. The shaft 3 drives the take-off drum 19 through a gear-wheel 13, pinions 14, 15, a bevel wheel 16 and pinions 17, 18. In order to maintain the spinning pitch constant, the spinner 25 is positively driven at a speed dependent on the speed of the take-off drum 19 through pinions 18, 20, a bevel wheel 21, a pinion 22, a belt pulley 23 and belt 24. A winding drum 27 is driven by a stepped pulley 28 through gearing from the takeoff drum 19. Clutches 29, 30 are adapted to vary the ratio of transmission and pitch of twist without stopping the machine. Figs. 6 and 7 show the construction of brake band placed between reels 9, 10, 9<1>, 10<1>, which are mounted on the yokes 7, 8. The brake drum 33 is keyed to one of two hollow shafts 31 mounted on a shaft 38 on roller bearings 39. A disc 32 with a pin 34 for operating the brake band 35 is secured to the other hollow shaft 31. A felt strip 36 and brake linings are fitted on the band 35. Specification 276,665, [Class 36, Electricity, Conducting &c.], is referred to.
Patent GB-1200516-A (GB)
Title: Heat recovery steam generator
IPC: F22B1/18
Filed: 1968-04-29
Abstract: 1,200,516. Waste heat steam generators. GENERAL ELECTRIC CO. 29 April, 1968 [5 May, 1967], No. 20154/68. Heading F4A. A steam generator including an economizer 4, an evaporator 6 and a superheater 8 disposed downstream of a burner 10 in the path of hot gaseous products of combustion, e.g. gas turbine exhaust gases, has a further heat recovery element 26, connected in parallel with at least part of the flow path through the economizer, evaporator and superheater, disposed upstream of the burner. The element 26 may be an evaporator. An economizer, evaporator and superheater in a circuit including a separate drum and pump may be provided upstream of the burner.
Patent GB-1015758-A (GB)
Title: Centrifugal casting
IPC: B29C44/04
Filed: 1963-05-21
Abstract: Foam plastics material is rotationally cast in a mould by centrifugal force of 10-500G, at least part of the foaming occurring during the action of the centrifugal force.  The mould may be positioned eccentrically to give uneven wall thickness. Suitable materials, mixed with blowing agents if necessary, include polythene, polyvinyl chloride, polystyrene, nylon, synthetic and natural rubbers, epoxy resins, phenolic resins and polyurethanes.  A hollow cylindrical mould may be rotated vertically, horizontally or in inclined position and the mould may be annular to determine the inner diameter of the article.  The foaming ingredients may be introduced into the mould by a spraying nozzle to give a single jet, a multiple jet or a cone spray and may be withdrawn along the axis of the mould at a controlled speed.  The mould may be cardboard and may remain in the composite paper/foamed plastic pipe or tube so formed.  The cardboard mould is made by helically winding paper ribbons on a rotating mandrel, the ribbons either overlapping or abutting, in the latter case the butts being covered by a further ply of paper of equal width.  Up to 20 plies may be superimposed in this manner.  The foam preparation is fed into the tube through the mandrel.  An external tubular sheath may give initial support to the formed tube.  The tubes may be shaped by passing them through annular tubes or dies concentric and rotating with the mould, quasiquadratic, hexagonal and oval shapes being mentioned.  Heat may assist the shaping. Polyurethane foams produced by the interaction of organic polyisocyanates with hydroxyl group containing polymers, e.g. polyesters, polyesteramides and polyethers, modified, e.g. by water, to produce blown cellular materials, are preferred.
Patent GB-1030148-A (GB)
Title: High power electron tube apparatus
IPC: H01J23/027
Filed: 1964-05-14
Abstract: 1,030,148. Klystrons. VARIAN ASSOCIATES. May 14, 1964 [June 13, 1963], No. 20204/64. Heading H1D. Electron tube apparatus, e.g. a klystron, has an electron gun for projecting over an elongated beam path a beam of electrons having an average beam power greater than 100 kilowatts, a collector assembly, and a magnetic beam focusing structure which straddles an interaction structure which is disposed so that the electromagnetic fields of the interaction structure interact with the beam, the focusing structure including a pair of apertured polepieces one of which is disposed between the terminal end of the interaction structure and the collector assembly and being adapted to shield the collector assembly from the beam focusing field but nevertheless permitting a leakage field to permeate the collector region, and a second magnetic field generating structure arranged to produce a static dispersing magnetic field in the region of the collector assembly which field is superimposed upon the leakage field, the resultant magnetic field having over a substantial part of the length of the collector assembly in the direction of the beam axis a substantial radial component. The second magnetic field generating structure may be a solenoid or a permanent magnet.
Patent GB-224293-A (GB)
Title: Improvements in apparatus for the manufacture of chocolates and like confectionery
IPC: A23G3/24
Filed: 1923-08-09
Abstract: 224,293. Beech's Ghocolates, Ltd., and Walton, F. W. Aug. 9, 1923. Coating confectioners' goods. - In apparatus for the manufacture of chocolate or other confections by dipping, the heating tank 1 and the tempering or dipping tank 4 are combined in a single unit and are preferably associated with a cooling-chamber 10 in which the confections are placed immediately after dipping. The tank 1 is heated by an electric lamp 2, under its bottom, and the tank 4 is cooled by air circulating in a sinuous path in a false bottom and exhausted through perforations 21 in one of the side walls. The tank unit is let into an opening in the dipping table adjacent to a plate on which the cores are placed prior to dipping, the rim 7, which may have a gap 27 for the passage of the operator's hand, projecting above the table. The cooling- chamber 10 is divided into lower and upper compartments 10<a>, 10<b>, the - compartment 10<a> being open at the being open at the front and the compartment 10<b> being closed at the front and back by hinged doors. The cooling air is supplied from a main duct 14 through a pipe 16 into the compartment 10<b> and from thence, through a passage at the rear of the cooling-chamber, into the lower compartment 10<a>, a flap valve diverting a portion of the air to a pipe 19 leading to the air passages of the tempering-tank. As shown in Fig. 3, a number of dipping units are supported by one table, baffles 15 which divert the air into the pipes 16 being progressively higher to compensate for the reduction in the speed of the air as it passes along the duct. The placque 13, in the lower compartment 10<a> is filled with dipped confections and is then placed in the upper compartment 10<b> for the final cooling. A conveyer may be provided to carry away the placques removed from the upper compartment. A lamp 23 illuminates the compartment 10<a>. Thermometers may be fitted to each cooling- unit and a flap may be provided in the pipe 16.
Patent GB-788616-A (GB)
Title: Electric cookers
Inventor: MASON GORDON GOSS
IPC: F24C15/10
Filed: 1955-07-13
Abstract: 788,616. Electric cookers. REVO ELECTRIC CO., Ltd. July 3, 1956 [July 13, 1955], No. 20256/55. Class 39(3) In an electric cooker having a control panel mounted above the hob, a thermally actuated switch b is mounted in or on the panel and is connected in circuit with one or more hot-plates c in the hob adjacent the panel, which is thus protected against being over-heated by the hot-plate. The panel is hollow, is mounted on the back of the hob and carries also switches and tuning mechanism for the cooker. The switch operates at a predetermined temperature and preferably remains "off" until actuation of a push button d on the panel, such actuation however not operating the switch unless the temperature of the panel has fallen. A warming lamp e on the panel is connected across the thermal switch b and lights when the switch is "off". A second lamp g on the panel lights when any of the switches .controlling the hotplates is closed.
Patent GB-614112-A (GB)
Title: Improvements in or relating to brake devices for electric winches
IPC: B66D5/26
Filed: 1946-07-06
Abstract: 614,112. Brakes for electric winches. BERNARD, A. C., and THOMSON, W. July 6, 1946, No. 20264. [Class 103 (i)] [Also in . Groups XXX and XXXVII] A brake for an electric winch comprises pivoted shoes 3 which are normally engaged with a drum 1 on the winch shaft 2 by springs 6, but are disengaged by pistons 8 in a cylinder 7 to which pressure liquid is supplied through a pipe 10 from a master cylinder 9 when a solenoid 15 is energized on movement of the motor controller to and beyond the first notch position of the controller contactors. The solenoid plunger 17 operates a lever 18 engaging the plunger 19 of the master cylinder, and the latter may also be operated independently of the solenoid by a plunger 23 actuated by a hand release lever 22. To stop the winch quickly when the controller contactors are beyond the first notch position, a pedal 20 is depressed to move the plunger 17 to left against the pull of the solenoid, thus allowing the plunger 19 to move to the right and operating a switch 24 which causes the controller contactors to be returned to the " off " position. If the controller is in the first notch position when the pedal 20 is depressed, the contactors are not returned to the " off " position and the motor runs at creeping speed. The cylinders 7 and 9 and pipe 10 are maintained full of liquid by a header tank 12 connected to a pipe 13 containing a non-return valve 14.
Patent GB-897441-A (GB)
Title: Improvements in the manufacture of large sheets of flexible material
IPC: B29C65/00
Filed: 1957-06-27
Abstract: 897,441. Seaming. STEPHENS, K. W. Sept. 24, 1958 [June 27, 1957], No. 30314/57. Class 42 (1). A method of manufacturing a large sheet of flexible material by joining edge-to-edge a plurality of panels of the material each of a length equal to one dimension of the finished sheet wherein a first panel 13 has a flanking panel 14 seamed thereto at 15 and folded longitudinally at 16 so that its free edge substantially overlies the seam 15, a similar panel 17 being seamed to the opposite edge of the panel 13. Panels are added alternately on each side to form two concertina-like stacks standing side by side on the panel 13. As shown in Fig. 1 the material is placed on a bench 1 provided with a series of idler rollers 6 and the edges are seamed by means of two seam welding heads 11 each mounted on a trolley that runs beside the bench 1, the heads 11 being vertically adjustable. The centre of the bench is formed as a removable trolley 3 and the finished sheet is rolled as shown in Fig. 1 and removed from the bench on the trolley 3.
Patent GB-1439134-A (GB)
Title: Method and apparatus for electric resistance welding
IPC: B23K11/31
Filed: 1972-05-02
Abstract: 1439134 Welding by pressure ROWENARC Ltd 20 July 1973 [2 May 1972] 20324/72 Heading B3R An electrode support assembly for a resistance welding machine comprise two electrode supports for an opposed pair of electrodes, one of which supports incorporates a mechanical linkage for movement of the support and one of the supports incorporates an hydraulic ram for movement of the support, the linkage and ram being in series and a valve associated with the ram being closable to prevent flow of fluid from the ram and thereby lock the ram. The linkage may be in one support and the ram in the other or both may be in the same support. In an embodiment a rigid frame 1 carries a fixed electrode support 2 for a lower spot welding electrode and slidably supports a unit 5 which forms a cylinder for a hydraulically operated piston 10 carrying an upper electrode 4 in a holder 3. The unit 5 is pivotally connected to one link of a toggle linkage 8, the other link being pivoted to the frame and the pivot point of the two links being connected to the piston of a pneumatic ram 7 pivoted to the frame. The piston 10 is spring urged upwardly and hydraulic fluid is admitted to the cylinder above the piston via a normally opened shuttle valve, the valve being connected to the hydraulic fluid inlet. In operation a workpiece is inserted between the electrodes with the linkage 8 in the dotted line position and the piston 10 in its raised position. The ram 6 then extends the linkage 8 to advance the unit 5, the linkage being finally locked in the over centre position. This movement causes the admission of hydraulic fluid to the cylinder above piston 10 to bring the electrode 4 into engagement with the workpiece. When sufficient back pressure is generated the shuttle valve is caused to move to close an inlet above the piston 10 and the back pressure or movement of the shuttle valve initiates flow of welding current. Gangs of opposed electrodes may be used with separate hydraulic cylinders for the separate electrodes but with a common linkage controlling movement of a sub-unit housing the cylinders, and the hydraulic cylinder may be double acting. The invention may be applied to stitch, projection or roller electrode seam welding machines.
Patent GB-243784-A (GB)
Title: Improvements in heating elements for electric heaters, radiators, cookers and the like
IPC: H05B3/00
Filed: 1924-08-28
Abstract: 243,784. Cox, F. B. Aug. 28, 1924. Wire resistances, encased and cored; localizing heating.-In a heating element wherein the heating effect is localized by increasing the crosssectional area of certain parts of the resistance wire, the latter is helically wound on an insulating core, is .arranged between pressure surfaces, and is constructed so that the full heat is only generated in those portions of the wire in contact with the surface through which it is desired to transmit heat. The increase in cross-sectional area of the wire may be effected by deposition of copper thereon. In the drawings the parts of the wire B in which the full heat is generated are shown in dotted lines. Fig. 3 shows a heater wherein the wire B is wound on a hollow core A provided at intervals with radiating fins C<2>. An air-heater, Fig. 3<A>, comprises a split tube A through which the air is passed, the tube being surrounded with a mica sheet on which the resistance wire is wound and a make-up piece a<2> being inserted in the split. In Fig. 4 the wire is wound on a triangular core pressed against the sides of a recess in a water heater C3 by spring pressure. In Fig. 5 two heating elements are held between the two halves of a hot-water radiator. In Fig. 6 the heating element is held against the bottom of a kettle F by a spring f<3> and plate f<2>. Fig. 7 shows a heating element adapted to be secured to a vessel to be heated in which the increase in cross-section of the heating wire is obtained bv using a core D' in contact with a core D wound with a copper ribbon d<1>, the resistance wire B being wound about the cores when in contact.
Patent GB-659594-A (GB)
Title: A device for adjustably ventilating meeting halls, cinematograph and theatre halls and like enclosed spaces
IPC: F24F13/12
Filed: 1949-08-04
Abstract: 659,594. Ventilating. RUNEFELT, V. E. A. Aug. 4, 1949, No. 20350. [Class 137] [Also in Group XXIX] Ventilation of halls, cinemas and the like provided with tip-up seats is controlled by means of rotary valves formed by hollow seat pivots 6 and journal sleeves 7 having cut out portions 9, 10 respectively that coincide when the seat is lowered. As shown, opening of the valve allows the passage of air between chair leg passages 3 which communicate with an air duct 4, e.g. in the floor, and an air channel 5 that extends across the seat and is open to the atmosphere through a perforated disc 8. Alternatively ventilation may be effected through the back of the chair.