baber/WOPTO huggingface dataset:
Patent GB-373471-A (GB)
Title: Improvements in and relating to vacuum electric circuit interrupters
IPC: H01H33/66
Filed: 1931-07-14
Abstract: 373,471. Vacuum switches and fuses. BRITISH THOMSON-HOUSON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Prince, D. C.; 1424, Wendell Avenue, Schenectady, New York, U.S.A.) July 14, 1931, No. 20256. Convention date, July 14, 1930. [Class 38 (v).] A vacuum circuit interrupter is provided with one or more grids or barriers arranged in the gap between the electrodes and electrically insulated so as to be free to assume any potential. The breakdown voltage of the interrupter is increased by the use of such a grid. As shown in Fig. 2 applied to a vacuum or low pressure switch with electrodes 10, 11 supported by yieldable portions 16, 17 of the casing to allow of longitudinal movement, a wire-mesh grid in the form of a disc 14 is supported by the walls of the casing in the gap between the electrodes. The grid has a central contact portion which is engaged by both electrodes in the closed position of the switch. As applied to a vacuum fusible cut-out, Fig. 2, the fuse wire is arranged between tungsten electrodes for D.C.. and nickel or copper electrodes for A.C., the electrodes being covered by shields 2<1>, 31 at the sealing points. A pair of grids 7, 8 supported from the container and spaced equidistantly from the electrodes and from one another increase the breakdown voltage of the fuse.
Patent GB-614263-A (GB)
Title: Improvements in or relating to a kitchen tool and method of making the same
IPC: A47J43/28
Filed: 1946-07-08
Abstract: 614,263. Handle fixings. EKCO PRODUCTS CO. July 8, 1946, No. 20292. Convention date, Feb. 23. [Class 61 (i)] [Also in Group XXII] In making spoons, forks, spatulas, &c., the handle shank 11 is formed at one end with a head 13 having a raised circumferential rim 15. The head 13 is resistance welded to the bowl, blade, &c., and the rim 15 forced into a fillet-form to seal and round the joint of the head 13.
Patent GB-1302642-A (GB)
IPC: B29C48/08
Filed: 1971-04-19
Abstract: 1302642 Blasting E I DU PONT DE NEMOURS & CO 19 April 1971 [26 Jan 1970] 20373/71 Heading B3D [Also in Division B5] The surface of a steel quenching roller used in casting plastics film is given a roughness exceeding 15 microinches r.m.s. (e.g. 18-28 microinches) and a multiplicity of interconnecting pits, by blasting against it particles of sand, glass, or alumina of particle size 80-320 mesh from a  inch diameter orifice at an air pressure of 115 p.s.i. The blasted surface may be polished to obtain a roughness in the preferred range.
Patent GB-848226-A (GB)
Title: Method for producing junctions in semiconductor device
Inventor: MYER JON HAROLD
IPC: C08F10/00
Filed: 1957-06-27
Abstract: 848,226. Semi-conductor devices. HUGHES AIRCRAFT CO. June 27, 1957, No. 20393/57. Drawings to Specification. Class 37 A rectifying or non-rectifying junction is produced in a semi-conductor starting crystal of a predetermined conductivity type by diffusing atoms of an active impurity into said crystal, the process including the steps of disposing a salt having an active impurity as one of its elements in contact with said crystal and heating the crystal-salt combination to a temperature above the melting point of the salt but below the melting-point of the crystal and below the decomposition temperature of the salt, thereby to diffuse atoms of said active impurity from the salt, and only from the salt, into the crystal. In one method an N-type starting crystal of silicon is immersed in anhydrous sodium tetraborate and heated so that boron atoms diffuse into the crystal to produce an impurity-doped P-type region. The crystal is then etched and sliced to obtain 'a P-N-P transistor. In an alternative method the starting crystal is immersed in the molten salt only long enough to acquire a coating of salt, and is then transferred to a crucible containing carbon dust in which it is heated until diffusion takes place. In a further alternative method a prefused chip of salt is placed on a wafer of the starting crystal and the combination heated in an inert gaseous atmosphere until the salt begins to run. The combination is then transferred to a crucible containing carbon dust and heated until the salt runs over the surface of the crystal and diffusion occurs. The salt formed on the surface of the crystal is then removed, e.g. by etching. The starting crystal may be of germanium and may be of N-type or P-type conductivity. Other suitable impurity-containing salts are antimony trioxide and sodium pyrophosphate for N-type doping and indium fluoride, indium sesquisulphide, aluminium fluoride, aluminium sulphide, gallium sesquiselenide and gallium sesquisulphide for P-type doping. An inert salt or salts may be mixed with the impurity-source salt to reduce the impurity concentration, and the salt may be presaturated with silicon to preclude the possibility of the salt completely dissolving the silicon when this forms the starting crystal. Specification 760,649 is referred to.
Patent GB-136245-A (GB)
Title: Improvements in or relating to Receptacles for Toilet or other Powders.
Inventor: BOOTY STANLEY SEPTIMUS
IPC: A01K91/06
Filed: 1918-12-09
Abstract: 136,245. Booty, S. S. Dec. 9, 1918. Bags for powder. The bag has an opening in the top, against which a powder puff of larger size than the opening is held by a lid, resilient means being provided so that the top may move towards and from the bottom of the container. In the form shown, the walls 9 of the container are flexible; if the wall is of rubber, other resilient means may be dispensed with. In any of these forms, the container may be arranged in an outer casing; in the case of the rubberwalled device, the outer casing may constitute a locket or pendant to be secured to a bracket. The puff or the lid may have a spring to keep the puff pressed against the opening.
Patent GB-815565-A (GB)
Title: Floating roof for a tank of the liquid storage type
IPC: B65D88/46
Filed: 1957-06-28
Abstract: 815,565. Tanks. WIGGINS, J. H. June 28, 1957, No. 20473/57. Class 69 (1). A floating roof for a tank of the liquid storage type comprises an annular hollow open-boat type pontoon 12 having spaced-apart upstanding side walls 14, 15, a deck 50 secured to the pontoon, a number of relatively light-weight easily collapsible plates 29 freely resting in sideby-side position transversely across the open top of the pontoon 12 and brackets 31 for loosely and removably anchoring the plates to the pontoon to prevent their accidental displacement. The plates are so constructed that they will collapse inwardly and downwardly into the pontoon as shown by the broken lines 29<SP>11</SP> under the impact of a shock wave of a heavy explosion occurring outside the tank or if there is an explosion inside the tank the plates will be moved upwardly as shown by the broken lines 29<SP>1</SP> to an open position with respect to the pontoon. The outer wall 15 of the pontoon is spaced inwardly from the inner surface 10a of the tank wall 10 and carries a plurality of pusher mechanisms 17 which in turn carry a cylindrical shoe 18. The annular space between the wall 15 and the shoe 18 is covered by a plurality of weather plates 37 which pivot about pins 40. An internal explosion will cause the plates to pivot into the position shown by the broken lines 37<SP>1</SP>. An annular gas-impervious flexible sealing member 24 of rubberized fabric is secured between the wall 15 of the pontoon and the shoe 18 by sealing strips 25, 26 respectively. If an explosion should occur in the vapour trapped beneath the seal 24 and the surface of the liquid 11 in the tank the seal will balloon upwardly as shown by the broken lines 24<SP>1</SP> and the plates 37 and possibly the plates 29 will be pivoted upwardly.
Patent GB-698474-A (GB)
Title: Power transmission and stroke adjustor mechanism
Inventor: SCOTT CHARLES HAROLD
IPC: F16H21/20
Filed: 1951-08-30
Abstract: 698,474. Converting rotary into reciprocating motion. DORR CO. Aug. 30, 1951, No. 20477/51. Class 80 (i). [Also in Group XXVIII] Mechanism converting uniform rotary motion into variable stroke reciprocating motion is shown applied to a duplex pump wherein two rods 23 carrying pump elements 22 are reciprocated by a rocker beam 28 and the beam 28 is linked to a pin 64 which is reciprocated at constant amplitude along a straight line whose orientation may be varied by a handwheel 68 to vary the pump stroke, the pin 64 being driven by a motor 11 through epicyclic gearing wherein a planetary pinion 95, Fig. 4, engages a stationary annulus 54 of twice its diameter. The pinion 95 is integral with a gear 94 driven, through gears 93, 92 on a shaft 82, by a pinion on a shaft 42 geared to the motor 11. A carrier 72-75-74, Fig. 8, is mounted in bearings at each end of the housing 43 and rotatably supports the shaft 42 and planetary shafts 63, 82. The shaft 63 is keyed to the pinion 95 and has a crank arm 65 equal to the radius of the pinion and carrying the pin 64 so that the latter is reciprocated along a diameter of the annulus 54. The annulus has outer teeth 59 engaged by a worm operated by the handwheel 68 to vary the orientation of the line of reciprocation of the pin 64 and thus vary the throw of an arm 31 rocking the beam 28. The orientation is indicated by a scale attached to the annulus 54 and viewed through a window 40. It is stated that the pin 64 may be given something other than straight line movement by changing the length of the crank.
Patent GB-977351-A (GB)
Title: Liquid discharge control valves
IPC: F16K27/07
Filed: 1962-05-28
Abstract: 977,351. Valves. J. H. DE FREES. May 28, 1962 [Oct. 30, 1961], No. 20495/62. Heading F2V. An outlet valve for a compartmented tanker vehicle has a rotatably adjustable outlet fitting 24 and a number of columnar supports 29 mounting a hubbed spider 30 which locates and guides a valve stem 42 carrying a valve head co-operating with a seat 24b. The valve member comprises a disc 43 carrying a resilient sealing ring 45. The seat is formed on the outlet fitting 24 which is clamped by bolts 29b and loose lugs 37 against a dished well 28 welded to the tank 27. A screen mesh cap 31 and a screen mesh wall 32 fit respectively over the spider and round the ring of columnar supports 29. A number of such valves on the vehicle are actuated manually from a control position through a link 26 and levers 47, 49 on a shaft 48a, the lever 47 having a shaped head 47a on which the valve stem 42a rides. The outlet fitting is grooved at 24 so that it may fracture readily in the event of collision and avoid possible damage to the valve which would result in the contents being discharged.
Patent GB-1061532-A (GB)
Title: Improvements in or relating conveyors
Inventor: WALKER ARTHUR STANLEY
IPC: B65G21/06
Filed: 1964-05-20
Abstract: 1,061,532. Framework. CRONE & TAYLOR (ENGINEERING) Ltd. April 20, 1965 [May 20, 1964], No. 20768/64. Heading B8A. A conveyer frame work is built up from a kit comprising tubular beams 12, Fig. 2, connected end-to-end as by lugs 14, 15 and carrying adjustably mounted cross-members 23 on which the conveyer rollers 25, 26 or other support members are mounted. U- or J-bolts 27 are used to attach the cross-member 23 and similar bolt means may be used to attach adjustable legs 20, Fig. 1B (not shown), support hangers, covers, guards &c.
Patent GB-878757-A (GB)
Title: Supplementary supports for motor vehicle lifts
IPC: B66F7/28
Filed: 1960-06-14
Abstract: 878,757. Garage lifts. JOYCE-CRIDLAND CO. June 14, 1960 [Sept. 14, 1959], No. 20774/60. Class 78 (3). Motor vehicle supporting pads 34, 36 are pivotally mounted on a common pin 32 which also passes through a support 26 whose ends rest on, and can swivel on, a base member 12 adapted to slide along the tracks 10 of a garage lift to a required position where an abutment 16 engages a stop. The surfaces of the pads 34, 36 provide three different levels of support for a vehicle, viz. (a) surfaces 41, 40 of the pads 34, 36; (b) surface 42 of pad 36; and (c) surface 43 of pad 34. Pad 34 can be raised independently of pad 36 by means of aperture 50, but when pad 36 is raised, pad 34 is raised with it by hooks 52.
Patent GB-674930-A (GB)
Title: Improvements in or relating to electromagnetic torque-producing devices
IPC: H01H50/16
Filed: 1948-08-06
Abstract: 674,930. Electromagnetic switches. GENERAL ELECTRIC CO., Ltd., and FRIEDLANDER, E. S. July 20, 1949. [Aug. 6, 1948] No. 20841/48. Class 38 (v). [Also in Group XXXV] An electromagnetic torque producer, e.g. for operating relays &c. comprises a series of inwardly directed stator poles 4, 5, 6, 7 carrying exciting windings, and an armature capable of limited rotation having corresponding poles 11, 12, 13, 14 such that the overlaps of the co-operating pole-pairs increase or decrease together. The oppositely disposed windings are connected in series and a steady torque is obtained by feeding quadrature pole-pairs with current displaced by 90 degrees. Circuit diagrams are given showing how the device may be connected to a three-phase supply. Specification 623,908 is referred to.
Patent GB-711343-A (GB)
Title: Improvements in cigarette stripping machines
IPC: A24C5/36
Filed: 1950-08-25
Abstract: 711,343. Recovering tobacco from cigarettes. WEINER, J. W. Aug. 27, 1951 [Aug. 25, 1950], No. 21129/50. 'Class 130 Faulty cigarettes are fed, as at random by hand or from an inclined rotary drum (not shown), on to a turntable 1 having a surrounding guard 2 with an outlet 8 through which the cigarettes are passed in alignment under the action of centrifugal force on to a conveyer 13 which, after their co-action with a slitting knife 16 spaced from the outlet 8, delivers them as via a shoot 17 into means 18 which acts to separate the tobacco from the paper. As shown, the outlet 8, which is substantially tangential to the guard 2, is formed of converging side walls and has as its base the conveyer 13. To prevent more than one cigarette at a time passing out by the outlet 8, a guard roller 6 is provided adjacent thereto driven counter to the turntable 1 from a pulley 4 thereon by a crossed belt. The means 18 is an inclined revolving wire mesh cylinder containing rotary brushes 29, preferably of metal wire having a different frictional co-efficient from that of the wire mesh metal, the tobacco being pressed through the cylinder 18 into a receptacle 31 and the paper passing out of the lower end of the cylinder into a receptacle 32. The cylinder 18 is mounted on rollers 19, 20 and driven by a pulley 25. Specification 681,753 is referred to.
Patent GB-838860-A (GB)
Title: Improvements in and relating to railway tie pads
Inventor: EVANS ARTHUR JACK SACKVILLE
IPC: E01B9/68
Filed: 1958-07-02
Abstract: 838,860. Rail pads. MIDWEST RUBBER RECLAIMING CO. July 2, 1958, No. 21194/58. Class 104 (2). In a rail track in which rails and sole plates are secured to sleepers by spikes, an arched pad is placed concave side downward on the sleeper and is flattened between it and the sole plate. The pad 1 is of substantially uniform thickness and is of arched conformation both widthwise and lengthwise, the curvature along the lengthwise and widthwise centre lines being greater than that along the corresponding edges 3 and 5 respectively. The pad is constructed of cord layers 7 with layers 9 of rubber between the cord layers and at the faces of the pad, the rubber layers being thin relative to the cord layers and the individual cords of each layer being oblique to the edges of the pad and to the cords of adjacent layers.
Patent GB-890006-A (GB)
Title: Improvements relating to pipe, hose and like couplings
Inventor: LOVE JOHN
IPC: F16L33/04
Filed: 1960-06-16
Abstract: 890,006. Barrel clips. K.A.C. Ltd. June 16, 1960, No. 21226/60. Addition to 885,996. Class 44. A pipe coupling for connecting two pipes having peripheral flanges with their rear surfaces inclined to the pipe axes comprises a plurality of sections 1 arranged end to end to form a substantially continuous circlet for embracing the peripheral flanges of two pipes to be connected by the coupling, the sections being of a channel form adapted to straddle the pipe flanges and urge same axially together upon radial inward movement of the sections towards the pipe axes and having out-turned lips 3 to support encircling bands 4 the bands coacting with means for adjusting their effective circumference thereby to adjust the circumferences of the circlet of sections and having means interconnecting the bands in such manner that the individual tensions therein are maintained in substantial equality. As shown the circumference is adjusted by an eyebolt 8 and crosshead 9, the eyes of the eyebolt forming the means for equalizing the tensions since the bands 4 are in the form of a single length of wire threaded through the eye and with the ends joined to the crosshead. A U tube 7 protects the wire from damage when it passes through the eye. The free ends of the wire are each secured to a banjo 11 and by these to trunnions 12 on the crosshead 9 the banjos being secured by circlips 13. The bands 4 are retained on the lips 3 of the sections by clinching the lips over the band at intervals as indicated at 5. Specifications 732,442, 735,271 736,879 and 790,625 also are referred to.  Reference has been directed by the Comptroller to Specification 820,328.
Patent GB-642235-A (GB)
Title: Improvements in and relating to clothes washing machines
IPC: D06F13/00
Filed: 1948-08-12
Abstract: 642,235. Washing machines; washing- dollies. LEHMANN, N. Aug. 12, 1948, No. 21251. [Class 138 (ii)] A washing machine unit for use in combination with a sink and wash-tub fixture comprises a drain-board member adapted to cover the wash-tub portion of the fixture, and an electric motor H fixed to the drain-board member and operatively connected with a paddle or agitator 25 depending into the wash-tub, the motor being fixed to the drain-board member on the same side as the paddle or agitator. The drainboard member comprises front and rear sections 16, 17 pivotally connected together, so that one section 16 can be lifted out of the way to the dotted line position 16 for easy access to the tub. The motor M and its associated gearing is housed in a waterproof casing 20 slidably and detachably fixed to the drainboard by means of a flange on the casing which engages a pair of track guides secured to the undersurface of the drain-board. A disconriectable coupling is provided between an oscillating driven shaft 30 and a hollow shaft 26 of the paddle 25 as shown in Fig. 4. Spring- pressed pins 35 engage in openings 28 in the shaft 26, and lugs 31 on the shaft are received in slotted openings 27 in the shaft 26.
Patent GB-1248654-A (GB)
Title: A motor compressor having resilient support means
IPC: F04B39/12
Filed: 1969-04-25
Abstract: 1,248,654. 654. Compressors. DANFOSS A/S. April 25, 1969 [April 27, 1968], No.21255/69. Heading F1N. [Also in Division F2] A motor-compressor unit 4 is resiliently supported in a casing 1 by means of spiral springs 17, 18, (19), each having the first turn fixed to the casing 1 or the unit 4, and the final turn seated in a semi-circular recess 22 provided in the unit or casing respectively. In the embodiment shown there are three springs secured by their first turns to members 14, 15, (16) welded to the inside of the casing. The recesses 22 for the springs 17, 18, (19) are formed in parts 11, 12, (13) of a carrier member 7 connecting the motor 5 to the compressor 6. To limit the maximum movement of the unit projections (25) on the parts 12, (13) abut bent-up tabs (26, 27) on the members 15, (16).
Patent GB-933890-A (GB)
Title: Turbine or compressor blades and methods of making them
Inventor: MANGLES ARTHUR WILLIAM STEWARD
IPC: B21D53/78
Filed: 1961-06-13
Abstract: 933,890. Making turbine or compressor blades. DE HAVILLAND ENGINE CO. Ltd. June 8, 1962 [June 13, 1961], No. 21328/61. Class 83 (2). [Also in Group XXVI] A hollow turbine or compressor blade is made by pressing a tube to form a blade portion 27, Fig. 13, with an integral hollow platform 29 at one end, and swaging the edge of the platform over a separate root 31, Fig. 17. The joint may also be brazed. A sheet metal circular disc of creep-resisting alloy is deep drawn in successive stages, Figs. 1-9 (not shown) into a tube with one end closed and a conical enlargement at its open end. The two ends are then milled or ground to the required length, the tube is ground eccentrically to give thinner walls at the positions of the leading and trailing edges and reference notches 25, Fig. 13, are provided for location during subsequent coining operations. After filling the blade portion with wax at a predetermined temperature, the tube is formed by three coining operations into the blade portion 27 and platform 29. The sides of the latter are square by drawing through a die and the end thereof is also ground square. The wax is then melted out and partly replaced by brazing material. A root 31 formed by a lost wax casting operation is then inserted in the platform 29 and located in a jig whereupon the sides of the platform are swaged over an end fiange 36, Fig. 16a (not shown), of the root. The assembly is also heated for brazing the assembly together and relieving stress. Alternatively the tube may be formed by spinning or flow-turning. The root may be solid but preferably has a spreader plate 32 providing passages 34, 35 for distributing cooling air during service. Both the root and spreader plate may be of different creep-resistance alloy from the blade portion.
Patent GB-1385588-A (GB)
Title: Welding apparatus
IPC: B23K9/028
Filed: 1972-05-08
Abstract: 1385588 Welding by fusion CLARKE CHAPMAN Ltd 26 April 1973 [8 May 1972] 21328/72 Addition to 1162815 Heading B3R Apparatus for externally TIG arc welding a tube to a tube plate or flange comprises a rotatable welding head carrying a non-consumable electrode and a hollow filler wire guide and arranged to be driven via a first gear ring fast therewith, and a wire-feed device fast with the welding head, so as to be rotatable therewith, and drivingly connected to a second gear ring, the two gear rings being arranged to be rotated at different speeds to effect wire feed through the guide. The apparatus may be adapted to make welds on a vertical, or as shown, horizontal tube plate. The apparatus comprises a hollow shaft 16 fast with a stationary support comprising three legs 10 arranged, in operation, to engage a tubeplate. An expanding chuck 26, arranged, in operation, to engage a tube bore, abuts a further hollow shaft 28 abutting the shaft 16 and is actuated by a nut 22 via a central rod 20. A rotatable hollow shaft 34 journalled on the shaft 16 carries fast therewith a gear ring 30, a fillerwire supply reel 56, a wire feed device and, via an insulative ring 42, an inner cylinder 44 enclosing a wire guide 64 and supporting a torch 80 having a non-consumable electrode 84. The wire feed device comprises a screw-adjustable V-grooved idler roller 60 and a co-operating knurled roller 62. The latter is drivingly connected to a gear ring 46 via a gear 74 and bevel gearing (70). The gear rings 30, 46 respectively meshes drive worms 52, 54. The drive to these worms are preferably of variable speed. Welding current, and torch shielding gas and cooling water are fed via a slip ring and a ring-sealed rotary union arrangement including the rotatable inner cylinder 44 and a stationary surrounding outer cylinder 14 fast with the legs 10.