baber/WOPTO huggingface dataset:
Patent GB-285342-A (GB)
Title: Improved wringer attachment
IPC: D06F45/00
Filed: 1927-11-01
Abstract: 285,342. Wotherspoon, J. K., and Wotherspoon, G. W. Nov. 1, 1927. Mangles and wringers, boards for. - An attachment serving both as a mangle board comprises a drip board comprises a funnel-shaped member having a flat upper side 8 located below the level of the nip of the rollers and an inclined lower side 3 extending beneath the lower roller 9, and having side walls 4 converging towards the funnel outlet. The device may be fitted between lugs on either side of the machine.
Patent GB-261768-A (GB)
Title: Improvements in or relating to vapour electric rectifiers
IPC: H02H7/127
Filed: 1926-11-19
Abstract: 261,768. British Thomson-Houston Co., Ltd., (Assignees of Robinson, L. T., and Sabbah, C. A.). Nov. 19, 1925, [Convention date]. Vapour apparatus, arrangements of.- In order to prevent arcing back when the anode is negative, the polarities of an insulated a n o d e shield, and of the anode and control electrode are changed successively, and in such a way that the voltages between the cathode and the shield and control electrode are definitelv related to, but not both in step with, the voltage between the cathode and anode. For this purpose the anode 1 is in series with the primary winding 13 of a reactance, having an adjustable core 15, the control electrode 8 is connected through a resistance 17, and the secondary winding 16 with the anode, and the shield 9 is connected through an adjustable condenser 18 with the control electrode, and through a resistance 19 with the anode. The phase differences between the voltages on the anode and shield depend on the adjustment of the core 15, and the phase differences between the shield and control electrode on the adjustment of the condenser. The adjustments should be such that when the anode has just become negative, the shield is charged to a higher negative potential, and the control electrode is positive, so that positive ions are prevented by the control electrode from reaching the anode, and are attracted to the shield. The interval between the change in polarity of the anode and control electrode should be just sufficient to allow de-ionization of vapour in the shield. The control electrode, when negatively charged, retards the emission of electrons from the anode. The anode is sealed to the casing 3 by an insulator 7, and the control electrode and shield are mounted on an insulator 10. A cooling-medium is applied to the anode through a pipe 11. The mercury cathode 2 is contained in an insulated vessel 4. A modified arrangement for polyphase working is described in which the anode is connected with the control electrode through a resistance and a phase-controlling device, and the anode is mounted in a funnelshaped baffle which deflects vapour towards the wall of the container.
Patent GB-1020621-A (GB)
Title: Improvements in or relating to producing solid particles for heavy separation media
IPC: B03B5/44
Filed: 1963-07-24
Abstract: <PICT:1020621/C6-C7/1> <PICT:1020621/C6-C7/2> <PICT:1020621/C6-C7/3> A method for producing solid particles, e.g. of Fe/Si for use in mineral separation, includes the steps of spraying molten material from its melt into discrete solid particles separating a coarse and a fine fraction of the solid particles; comminuting particles of the separated coarse fraction into particles substantially smaller than the average size of the particles in the separated fine fraction; flame spheroidizing at least part of the comminuted particles by passing them through a high temperature flame to melt them at least at their surfaces and allowing the particles to pass from the flame into a cooling zone; and mixing flame spheroidized particles in predetermined proportion with the separated fine fraction of the sprayed particles.  The Fe/Si may comprise 8-23% Si and up to 10% Cu, e.g. 14-16% Si and up to 3% Cu.  As shown in Fig. 1, molten Fe/Si is atomized at 1 and screened at 2.  The coarse fraction is comminuted in a ball or other mill 3, flame spheroidized at 4 and then mixed in suitable proportion, e.g. between 40% and 85% by weight of the flame spheroidized particles, with the fines from the screen.  The spraying is illustrated in Fig. 3. Molten Fe/Si from a tundish 5 falls through a central passage 8 and is disintegrated by conical jets of water A, B, C issuing from nozzles 9, 10, 11 at successively increased speeds. The water temperature may be controlled. Four or more jets may be used, at least one of the jets may be of gas, e.g. N2, and at least one may be of a liquid-gas mixture. The flame spheroidizing is illustrated in Fig. 4. Irregularly shaped Fe/Si particles and heated air are fed to an inner tube 32.  Fuel gas is fed tangentially at 39 to a surrounding chamber 40.  Cooling water is fed to the nozzle at 50 and a surrounding sheath of reducing gas is supplied at 47.  The spheroidal particles fall into a cooling chamber 51 having a curtain of cooling medium directed down its inner periphery 53 from an annular inlet 52.  Cooling of spheroidized particles may be as described in Specification 842,284.
Patent GB-407894-A (GB)
Title: Improvements in differential electric condensers
IPC: H04B1/16
Filed: 1933-10-23
Abstract: 407,894. Valve circuits for wireless reception. CROMWELL (SOUTHAMPTON), Ltd., and BROOKE, H. A., 32, Brinton's Terrace, Southampton. Oct. 23, 1933, No. 29316. [Class 40 (v).] A differential condenser used in a radio circuit in the position shown for controlling reaction to a valve detector, is so constructed that the rotor vanes leave one set of stator plates completely before entering the other set.
Patent GB-307315-A (GB)
Title: An improved method and apparatus for concentrating or drying liquids
IPC: B29B13/06
Filed: 1927-11-03
Abstract: 307,315. Dunlop Rubber Co., Ltd., Twiss, D. F., and Murphy, E. A. Nov. 3. 1927. Mixers with complex motions.-Liquids, e.g. latex, liable to suffer coagulation, skin formation, &c. during evaporation are concentrated with or without admixture of stabilizers, accelerators, preservatives, &c. while being submitted to motion adapted to alter continually and successively the angular relationship between the surface of the liquid and the wall of the containing vessel, which is thus covered successively with films of the liquid, the films being partially dried by the heated wall or by a gaseous heating medium. The motion given to the container vessel is of the non-rotational oscillatory kind similar to that produced by a person holding tightly in his hand a tumbler containing liquid and revolving the tumbler bodily in a small orbit. The oscillatory motion is not itself effected by the rotation of this vessel on its own axis, but such rotation may take place concurrently. The motion is shown diagrammatically in Fig. 6 in which half a revolution of a table 5 supporting the container takes the side a of the vessel from the position shown in full lines to that shown in dotted lines-the other half revolution takes the side a down again through the reverse of the same path. The container 1 is mounted rigidly on a shaft 6 to oscillate bodily about a point 2, the shaft 6 passing between a pair of brackets 7 on a table 5 rotatable about an axis 4. The container is supported on gimball bearings comprising a transverse bearing 16 pivotally mounted on an annular yoke 10 which is itself pivoted in hollow bearings 11, 11<a>, Fig. 4, supported in standards 12, the yoke 10 being made hollow for the supply of a heating or cooling medium to the double wall 18 of the container. The evaporation is assisted by blowing a current of gas, heated if required, through the vessel, the gas being forced by a fan through a flexible. pipe 45 into a conical chamber 53 provided with orifices 53 and being withdrawn through annular spaces 47 in the lid. The vessel may be maintained under reduced pressure and is emptied by tilting it on the bearings 11, 11<a> by a lever 62. Rotating arms, flexible fins, or balls may be provided to maintain the uniformity of the dispersions. Modified means for producing the oscillation of the vessel are described.
Patent GB-1425569-A (GB)
Title: Photographic antihalation coatings
IPC: G03C1/83
Filed: 1972-06-22
Abstract: 1425569 Photographic anti-halation layers AGFA-GEVAERT 31 May 1973 [22 June 1972] 29387/72 Addition to 1241692 Heading G2C Photographic silver halide materials contain on the side of the support opposite to the emulsion layer or layers an anti-halation layer having a waterinsoluble, alkali-soluble polymeric binder and an anti-halation dye containing at least one carboxyalkyl group but having no sulpho group in acid or salt form, the dye having the general Formula:- where R 1  is allyl, cycloalkyl or substituted or unsubstituted alkyl or aryl, R2 is H or has one of the values given for R 1 , each of L 1 , L 2  and L 3  is methine or substituted methine, Ar is arylene which may be substituted, p is I or 2 and Y is -OH, alkoxy, alkylthio, amino or substituted amino. Polymeric binders include nitrated CO (styrene/ maleic acid), CO (styrene/acrylic acid), CO (methyl acrylate/acrylic acid), CO (vinyl acetate/crotonic acid and CO (acrylic or methacrylic acid/ethyl or n-butyl acrylate/methyl methacrylate. Other polymers are listed. Polymethylene hydroxybenzoic acid may be present in the binder to improve subbing properties or a cellulose diacetate and CO (styrene/maleic acid) intermediate layer or a CO (vinylidene chloride/vinyl chloride/n-butyl acrylate/ itaconic acid) subbing layer may be used.
Patent GB-364157-A (GB)
Title: Improvements in or relating to sheet-feeding mechanism for printing machines
IPC: B65H3/08
Filed: 1930-10-02
Abstract: 364,157. Feeding sheets. LINOTYPE & MACHINERY, Ltd., 9, Kingsway, London, and SHUTTLEWORTH, J., 57, Chestnut Drive, Ashton-on-Mersey. Oct. 2, 1930, No. 29472. [Class 100 (i).] Sheet-separators.-In sheet-feeding mechanism for printing-machines of the kind in which a preliminary separation of the sheet is effected by arcually movable suction members and the separation is assisted by air blasts, the suckers 1 are connected by means of hollow arms 4 to a plate or diaphragm 5 which is capable of rocking on its lower beaded edge 8 in a suction chamber 6 substantially of segmental form. The upper edge of the plate 5 is fitted with adjustable packing strips 7 so as to make airtight contact with the. curved wall 6a of chamber 6, and the side edges of the plate 5 are similarly packed. The suckers 1 may coact with sheet-combing devices which buckle the edge of the top sheet into contact with the suckers 1. The air pressure is then reduced in the chamber 6 and the arms 4, and the plate 5 moves arcually owing to the reduction of air pressure in chamber 6. The chamber 6 and parts 4, 1 are finally raised by an oscillating arm 18 to which the chamber 6 is adjustably attached. The sucker 1 is secured adjustably to the arm 4 and a spring 13, or gravity, returns the arm 4 to normal position after the sheet is detached from the sucker. A stop .11 limits the rising motion of the arm 4, and a stop 12 limits the clockwise motion of the plate 5. The side-wall 6c of the chamber 6 is secured to the body by wing nuts 20 threaded on studs 21.
Patent GB-1192676-A (GB)
Title: Improvements relating to Umbrellas
IPC: A45B25/18
Filed: 1968-06-20
Abstract: 1,192,676. Umbrellas. BREMSHEY & CO 20 June, 1968 [2 Aug., 1967], No. 29509/68 Heading A4P. In an umbrella of the kind having a flattened cross-section when closed, a laterally elongated cap is attached to the correspondingly shaped crown by resiliently engaging an axially projecting spigot on one of these members in a socket on the other member, and the cap and crown having overlapping complementary end parts to prevent their relative rotation. A tubular umbrella stick 1 has a crown 2 mounted on its end, the crown carrying rotatable lugs 5 for attachment of the spokes. The spokes may alternatively be attached to the crown by the conventional wire ring. The upper surface of the crown has radial grooves 6, each of which receives a cushion 7 of resilient plastics material, and a central projection 14 with an annular groove 13. The cap 9, which is preferably made of a slightly resilient plastics material, has a socket with a closed end 11 and an internal collar which is a snap fit in the groove 13. On the lower surface of the cap there are projecting teeth 10 which, when the cap and crown are snap-fitted together, are forced into the cushions 7 and lock the two parts against relative rotation. The canopy of the umbrella is gripped between the teeth and the. cushions; by disengaging the cap, the canopy is easily removed for renewal. The umbrella frame is preferably telescopic.
Patent GB-889415-A (GB)
Title: Hydraulic torque converters
IPC: F16H61/64
Filed: 1960-08-26
Abstract: 889,415. Hydraulic torque converters. VOITH G.m.b.H., J. M. Aug. 26, 1960 [Aug. 29, 1959], No. 29601/60. Class 69 (2). An hydraulic torque converter comprises a clutch 8, Fig. 1, between a primary part 2 having impeller blading 2a and a secondary part 3 having runner blading 3a, the bladings lying radially outside guide wheel blading 5a, 5b, and means for selectively emptying the chamber of the converter at least as far as the outer diameter of the guide wheel blading and for refilling the chamber. A gap 9 between the impeller blading 2a and the guide wheel blading 5b leads to an annular channel 10 having one or more outlets 12 which can be closed by movement of a ring 13. When the clutch 8 is engaged, the converter is emptied as far as the diameter of the gap 9 by opening the outlets 12 so that the guide wheel blading, which is stationary, does not have a braking effect. The coupling is refilled by closing the outlets and supplying fluid through a filling passage 11. In another embodiment, the gap 19, Fig. 2, leads to an annular channel 20 in which is a scoop tube 21 connected to at least one piston valve 23. The valve may be operated mechanically, pneumatically, hydraulically or, as shown, by the pressure in the filling passage 26 which urges the piston against a spring 24 so that an outlet 25 is closed. When the clutch is engaged, the fluid pressure in the passage 26 is disconnected and the pressure in the converter and channel acts on the piston to open the outlet. In a further embodiment, the gap 33, Fig. 3, leads to a chamber 31 having an outlet 34 which, when fluid pressure is supplied to the converter through a filling passage 36, moves the diaphragm 35 of a quickemptying valve against the outlet. The pressure in the converter moves the diaphragm away from the outlet when the fluid pressure in the passage 36 is disconnected and the clutch engaged. The converter may be completely emptied by ducts at the outer periphery of the impeller or runner.
Patent GB-340499-A (GB)
Title: Improvements in or relating to open flame gas radiators
IPC: F24C3/00
Filed: 1929-09-30
Abstract: 340,499. Gas stoves. WORTLEY, G. W., Brown Street, Camelon, Falkirk, and MAIN, Ltd., R. & A., 48, Grosvenor Gardens, London. Sept. 30, 1929, No. 29611. [Class 126.] In a gas radiator of the type in which the gases from a burner chamber 5 pass up a series of tubes 25 each extending part of the way up an outer tube 2, and thence down between the tubes to an outlet 33, the tubes 25 are rendered easily removable for cleaning by being supported solely by an apertured plate or ledge 17 which engages their lower edges, so that they may be drawn up through the outer tubes after removing the cover plate 30. In the construction shown, the tubes 25 are retained in position by an extension member formed by a rod 27 secured to a stirrup 26 which bridges the top of the tube and having a loop at the top which contacts with the underside of the plate 30. The supporting plate 17 is carried on slideways so that it may be withdrawn through the front of the burner chamber after removal of the front cover plate 13. More than one plate 17, each carrying two tubes, may be provided. The gas pipe 16 carrying the burners is pivoted and cranked so that all the burners may be swung through an opening in the cover plate 13, which is provided with a door 14. The outer radiator tubes 2 are secured by concealed bolts 35 passing through internal flanges 34.
Patent GB-1004860-A (GB)
Title: Improvements in cold cathodes for electronic flash bulbs
IPC: H01J17/06
Filed: 1961-08-16
Abstract: 1,004,860. Cathode materials and processing. W. HEIMANN, [trading as DIE FIRMA FORSCHUNGS-LABORATORIUM PROFESSOR WALTER HEIMANN]. Aug. 16, 1961 [Aug. 27, 1960], No. 29613/61. Heading H1D. A cold cathode for electric flash bulbs has a tungsten peg 2 around which is compressed nickel powder 1 containing emissive material, the fixing of the nickel powder to the tungsten peg being obtained solely by sintering the nickel powder. As shown in Fig. 2 the tungsten peg 2 can be frusto-conically shaped in the region 2a of the nickel powder. As shown in Figs. 1 and 2 the tip of the tungsten peg 2 extends to about the middle of the mass of nickel powder. In a modification the tip can extend to the far side of the nickel powder. Sintering is effected at 800‹ C. Specification 1,004,859 is referred to.
Patent GB-232521-A (GB)
Title: Improvements in apparatus for boring wells and the like
IPC: E21B4/02
Filed: 1924-12-10
Abstract: 232,521. Mancho, A. I., (Capeliuschnicoff, M. A.). Dec. 10, 1924. Addition to 225,931. Bore-hode apparatus. - Apparatus as described in the parent Specification has the casing L, enclosing the power transmission gear between the rotor F and the drilling spindle, detachable from the hollow drill head D and provided with means for definitely determining its position therein when assembled. The casing L has longitudinal ribs L‹ engaging grooves D‹ in the drill head, the latter being provided with abutment stops D<1>; a ring L <2> on the casing seats on a shoulder in a cap N attached to the drill head. The cap N has a bush O within which the drill socket G revolves, screws P projecting through the bush O into grooves in the socket G. The upper cap M of the casing, in conjunction with a sleeve F‹ depending from the rotor, forms a labyrinth. The stator F<2> has an upwardly projecting sleeve to which a lubricant reservoir A is attached; lubricant passes through ducts F<4>, F<5> in the rotor spindle to a bearing sleeve M<1>. A thrust bearing B<1> is provided for the rotor spindle, and ball bearings B, K are also provided.
Patent GB-654341-A (GB)
Title: Fluid-tight coupling for pipes
IPC: F16L21/04
Filed: 1948-11-16
Abstract: 654,341. Pipe joints. SOC. CONTINENTALE ET COLONIALE DE CONSTRUCTION SOC. ANON. Nov. 16, 1948, No. 29825. Convention date, Jan. 10, 1948. [Class 99(i)] In joints particularly for concrete pipes, bolts 23 pass through an interior annular projection 22 of a female element 17 in which is engaged a pipe 16, and when each bolt is tightened a ring 11, of deformable material such as rubber, located in a housing of the element is pressed against the element and the pipe and, simultaneously, portions of the projection are put under compression. The projection extends longitudinally over the end of the pipe. The element may be a sleeve overlapping two contiguous pipe ends and the rings annular or formed from strip. Individual segmental or annular metal guard plates 12, 13 may be placed on each side of the rings.
Patent GB-266645-A (GB)
Title: An improved process of making bi-metallic or compound metallic strips, plates or thelike, such as for use in thermostats
IPC: B32B15/01
Filed: 1926-11-26
Abstract: 266,645. Miller, F. W. Nov. 26, 1926. Casting processes.-A bimetallic or compound metal strip or plate, particularly for a thermostat is made by placing a strip or plate 1 of one of the metals, e.g. nickel steel in a crucible 2, covering it with a fusible non-metallic substance 3, e.g. glass, heating till the glass &c. is fused and then applying a heated strip of the other metal of lower melting point, e.g. brass, the compound strip then being heated sufficiently to fuse the upper strip without fusing the strip 1. The brass &c. may be in granular form. The strip 1 may be preliminarily treated with a mixture of sulphuric and nitric acids with a small percentage of bichromate of potash to produce an undercut surface. The compound strip may be rolled and cut into further strips.
Patent GB-710668-A (GB)
Title: Improvements in or relating to variable electric resistances
IPC: H01C10/32
Filed: 1951-12-20
Abstract: 710,668. Regulating switches. MALLORY & CO., Inc., P. R. Dec. 20, 1951 [Dec. 27, 1950], No. 29888/51. Class 38(5) [Also in Group XXXVI] A continuously-variable resistance having a contact 33 which moves over a resistance path 12 is converted into one with a step by step action by the co-operation of two projections 92 on an annular spring with a circle of hemispherical studs 70 on the rotor 30. At the switching positions thus determined, contacts such as 98, 99, Fig. 5, may be formed by spraying silver on the carbonaceous resistance material 12. The contact member 33 is shaped as shown in Fig. 4 (part) and has brush contacts 50, 51 engaging the resistance path 12 and wipers 47, 48 engaging a conducting ring 40.
Patent GB-227255-A (GB)
Title: Improvements in or relating to weight driven mechanism
IPC: F03G3/00
Filed: 1923-11-28
Abstract: 227,255. Snell, A. C., and Edwards, V. Nov. 28, 1923. Weight power-storing mechanism. - In a weight-motor for a petrol lighting plant or other weight-operated mechanism the mechanical advantage is obtained by means of a pulley suspended by wires &c. so as to avoid axial friction and having drums B, C, D of different diameters. The weighted drum is raised by means of the wire A and in descending uncoils from the suspending cords E, F and operates a petrol machine by means of the same wire A. The supporting wires may be duplicated and anchored to swingletree supports on a gantry &c. The drums may be water-filled or otherwise weighted.
Patent GB-300382-A (GB)
IPC: B64D33/10
Abstract: 300,382. Lobelle, M. Oct. 27, 1927. Radiators, aircraft and like. - A radiator for aeroplanes &c. comprises two or more series of tubes interspersed at intervals and connected to the water jacket so that one series of tubes is always in circuit while the others may be cut out, the heat from the tubes in circuit preventing freezing or undue cooling in the others. Both ends of the series of tubes b always in circuit, and one end of each subsequent series c, d, are in open connection by a pipe a with the water jacket, the outlet end f, g of each subsequent series being in valve-controlled connection by a return pipe h with the jacket. Spigot valves n, b, k on outlet pipes g, f and on a bye-pass j between the radiator and the return pipe h, are connected by rods q, p, o with a control rod r. The ports u, t, s of these valves are so made that when the valves n, m are open and water circulates in all the tubes, the bye-pass is shut, and when the control r is moved the pipe g is first shut and bye-pass j is slightly opened (Fig. 6); the bye-pass j is fully open only when the tubes c, d are closed. Alternatively, the outlet pipes e, f, g in one transverse plane and bye-pass j in another lead into a sleeve valve carrying the return pipe h at one end. A tapering port x gradually opens the bye-pass j as the pipes f, g with a port u are closed. In this case bye-pass j directly connects pipes a, h as shown in dotted lines in Fig. 1. When the tubes are connected to a corrugated back plate described in Specification 246,231, the tubes not in use are also heated thereby.