baber/WOPTO huggingface dataset:
Patent GB-1041604-A (GB)
Title: Improvements in or relating to thermographic printing plates
Inventor: NEWMAN DOUGLAS ALEXANDER
IPC: B41C1/10
Filed: 1963-05-01
Abstract: A hydrophilic sheet comprises a translucent plastics support of up to 4 mils thick coated with a hydrophilic layer weighing up to 7 pounds per ream and containing a hydrophilic binder and a filler.  Specified supports are those of cellulose acetate, polyethylene terephthalate, polyethylene, polyvinyl chloride and chlorinated rubber.  The support may be roughened by sandblasting or coating with a subbing layer of polyvinyl chloride, polyvinyl alcohol, polyvinyl butynal, polyvinyl acetate or polyvinylidene chloride, cellulose ethers or esters or gelatin, albumin or carboxymethyl cellulose before coating with the hydrophilic layer to aid adhesion between support and the hydrophilic layer. Hydrophilic binders for the hydrophilic layer include polyvinyl alcohol, carboxymethyl cellulose and sodium alginate and clay is specified as the filler.
Patent GB-138548-A (GB)
Title: Improvements in fire detectors
IPC: G01K5/62
Filed: 1919-07-09
Abstract: 138,548. Marks, E. C. R., (Spardon Electrical Products Co.). July 9, 1919. Alarms operated by expansion of solids.-In an electric fire-alarm of the type in which a curved bimetallic strip operates a contact-making lever, the lever makes contact with a stud adapted to be attached directly to the base-plate in adjustable positions. On a base A of insulating material is mounted a plate 10 and a circular expansible strip B secured at one end to the plate 10 by a block 11. The free end of the strip B is engaged by the free end of a lever C, which extends through the end of the strip B and has sliding contact therewith, the end of the lever being hookshaped. The lever C is pivoted centrally by means of a bushing or sleeve 12 journaled in the plate 10, and is adapted to make contact with a pin D, which is adjustable in a series of holes 16 having a temperature scale associated therewith. One terminal of the device is connected to the pin D, and the other terminal to the plate 10 and thence to the lever C.
Patent GB-749578-A (GB)
Title: Improvements in or relating to multi-stage turbine rotor assemblies
IPC: F01D5/06
Filed: 1952-07-10
Abstract: 749,578. Cooling bearings. DE HAVILLAND ENGINE CO., Ltd., HALFORD, F. B., and WILSON, W. K. Sept. 21, 1953 [July 10, 1952], No. 17417/52. Class 12 (1). [Also in Groups XXIV and XXVI] The inner race O of a turbine bearing O<SP>1</SP> bears against a shoulder N<SP>4</SP> of a sleeve N, the other end of this race being engaged by one end of a sleeve P the other end of which engages a shoulder L<SP>2</SP> on the turbine shaft L through a distance piece Q. The whole assembly is clamped against the shoulder L<SP>2</SP> by a nut J. The sleeve P has three sets of circumferential ribs P<SP>1</SP> separated by grooves P<SP>2</SP>, P<SP>3</SP> and is surrounded by a sleeve R having holes which communicate with the grooves P<SP>2</SP>, P3. The part of the sleeve N adjacent the flange N<SP>2</SP> is also formed with two sets of ribs N<SP>5</SP> separated by a groove N<SP>6</SP> and is surrounded by a sleeve- S having an aperture communicating with the groove N<SP>0</SP>. A housing T, which surrounds the sleeves R, S and the bearing O<SP>1</SP>, is provided with annular chambers T<SP>2</SP>, T3, T4 which communicate through the holes in the sleeves R, S with the grooves P<SP>2</SP>, P<SP>3</SP> and N<SP>6</SP>. The chambers T<SP>2</SP> and T<SP>3</SP> are connected to one another by a small orifice T<SP>5</SP> whilst the chambers T<SP>3</SP>, T4 both communicate with a chamber T<SP>6</SP> to which cooling air is supplied by a pipe T'. Cooling air passes from the chamber T‹ through the chamber T<SP>4</SP>, groove N<SP>6</SP> and passages N<SP>8</SP> to the chamber U<SP>1</SP> whence it flows along the splines to the chamber U. This air is exhausted from the chamber U through apertures N<SP>7</SP>, groove P<SP>6</SP>, apertures P<SP>3</SP>, groove P<SP>2</SP>, chamber T<SP>2</SP> and openings T<SP>8</SP>. A proportion of the cooling air from the chamber T<SP>6</SP> flows into the chamber T<SP>3</SP> and through the small orifice T' and chamber T<SP>2</SP> to the openings T<SP>8</SP>. Since the air pressures in the chambers T<SP>3</SP>, T<SP>4</SP> are approximately the same there will be no tendency to blow the oil out of the bearing. Specifications 741,549 and 741,550, [Group XXIV], are referred to in the Complete Specification and 736,800 and 749,577, [Group XXIV], in the Provisional Specification.
Patent GB-824880-A (GB)
Title: Gas-shielded arc welding
Inventor: SPARK RONALD FRANCIS
IPC: B23K9/028
Filed: 1957-05-31
Abstract: 824,880. Welding by fusion. BRITISH OXYGEN CO. Ltd. May 22, 1958 [May 31, 1957], No. 17419/57. Class 83 (4). A gas shielded arc welding torch has a curved wire guide 7 which imparts a permanent curvature to the electrode wire, and a gas nozzle 5 the exit portion 6 of which is set at an angle to the axis of the torch. The torch is used for welding circumferential fins 10 to a tube 11. The curved wire guide has a wear-resistant insert 8 and is of conductive or ceramic material.
Patent GB-380497-A (GB)
Title: Improvements in or relating to control systems for prime movers driving electric generators
IPC: H02P9/00
Filed: 1931-06-17
Abstract: 380,497. Electric systems for transmitting mechanical power. WESTING- HOUSE ELECTRIC & MANUFACTURING CO., East Pittsburg, U.S.A.-(Assignees of Boothby, C. R. ; 64, Dearborn Street, Spring- field, Massachusetts, U.S.A.) June 17, 1931, No. 17571. Convention date, June 30, 1930. [Class 38 (iv).] Equalizing load on generators.-A load control system for a prime mover, such as an internalcombustion engine driving a railway vehicle through an electrical transmission, comprises a main generator 4, an exciter 17 and a separately excited auxiliary generator 32, all driven by the prime mover 1 and means 43 responsive to the voltage of the auxiliary generator to control the current delivered to the field winding of the main generator so as to maintain the speed of the prime mover substantially constant. The means 43 is torque relay which controls a reversible motor 64 to adjust the value of the resistance 20 in the field circuit of the main generator so that load variations are substantially prevented. A variable resistance 46, or adjusting means for a spring 61, provides for various working speeds of the prime mover. The load is taken from leads 7<1>, 11<1> and a battery 9 is in parallel with the main generator and supplies the excitation for the exciter and auxiliary generator.
Patent GB-902465-A (GB)
Title: Improvements in or relating to interlocking tray assemblages
IPC: B65D25/04
Filed: 1959-05-22
Abstract: 902,465. Compartmented trays having interlocking parts. FITCH, C. K. May 20, 1960. [May 22, 1959], No. 17580/59. Class 128. A tray having a plurality of compartments is constructed by fitting together a plurality of many-sided, interlocking blocks and upstanding ribs. The blocks form the base of the tray and the ribs form the walls of the compartments and a surrounding wall. The ribs may be integral with the blocks. A plurality of blocks and ribs may be selected from the blocks 1 to 7, 13 to 16, 20, 22, 24, provided, respectively, with dovetailing parts 124, 125 and assembled to form a tray, Fig. 26. Alternative forms of blocks and interlocking devices are described. Ledges may be formed on the faces of the ribs to support a lid for each compartment.
Patent GB-421069-A (GB)
Title: Improvements in, or relating to, snap-action electrical switches of the enclosed or ironclad type
IPC: H01H21/40
Filed: 1933-06-21
Abstract: 421,069. Snap - action switches. SIMPLEX ELECTRIC CO., Ltd., and DAVIS, P. W., 159, Great Charles Street, Birmingham, and HILL, W. E., 21, The Close, Reservoir Road, Olton, Warwickshire. June 21, 1933, No. 17641. [Class 38 (v)] A snap - action change-over switch with a central off position, having springs stressed by operation of a handle external to the switch casing, comprises two spring units carried on a common fixed anchorage and in common connection with a handle-actuated spring- stressing and drive-transmitting member, so arranged that for any particular operation of the switch, one spring unit only is stressed, the other remaining inert. The spring units f, g are formed each with two arms f<2>, f<3>; g<2>, g<3>, and a torsion coil f<1>, g<1>, one arm f<2>, g<2> of each unit being pivoted at e, and the other arm of each unit f<3>, g<3>, engaging an arcuate slot c<4> with pockets c<2>, c<3>, in a quadrant c. In the off position shown, the spring units are both inert, and a pin c' rests in the centre of a forked arm d<1> keyed to the movable contact spindle d. Upon operation of the external handle in either direction, one spring unit is stressed and reaches a dead-centre position, the pin c<1> engaging one side of the fork in the arm d<1> to start positively the movable contact spindle. After passing the dead-centre the spring snaps the movable contacts into a closed position, the other spring unit during the complete operation being inert with the end of its free arm 3 moving freely in the slot c'. Due to the lost motion provision between the handle and the quadrant c, and the quadrant c and the spindle d, the movable contact and the quadrant may over-run. The quadrant may be double-sided, with duplicated springs. A stop i may limit the angular movement of the movable contacts.
Patent GB-632247-A (GB)
Title: Improvements in or relating to silicon carbide articles and methods of forming them
IPC: C04B35/63
Filed: 1947-07-04
Abstract: Silicon carbide in the form of interlocked and partially interdiffused cubic crystals, for use in the manufacture of refractory articles, is formed by mixing together powdered silicon and carbon in stoichiometrical proportions, together with a temporary binder if required, pressing to shape at 1000-7000 lbs. per square inch pressure, drying and firing under reducing or nonoxidizing conditions to a temperature of 1200-1500 DEG  C.ALSO:A refractory article is composed of silicon carbide in the form of interlocked and partially interdiffused cubic crystals, with or without a granular refractory filler but without the presence of free carbon.  The filler may be ordinary hexagonal silicon carbide in amount up to 90 per cent of the product; alternatively, alumina, mullite, Kyanite, or clay may be used.  Clay may also be employed as a supplementary bond and may compose 20-30 per cent of the product.  The silicon carbide article is formed by mixing powdered silicon and carbon in stoichiometric proportions or with an excess of silicon, together, if required, with a filler and a temporary binder moulding at 1000-7000 lbs. per square inch pressure, drying, and firing under reducing or nonoxidising conditions to a temperature of 1200-1500 DEG  C.  The relative proportions of silicon and carbon may vary between 2.34 and 3 to 1, and the silicon-carbon content of the product is from 20 to 100 per cent, with the elemental silicon present in amounts up to 16.65 per cent.
Patent GB-1466357-A (GB)
Title: Cable and seals
IPC: H02G15/04
Filed: 1974-04-23
Abstract: 1466357 Cable terminations BICC Ltd and PYROTENAX Ltd 22 April 1974 [23 April 1974] 17764/74 Heading H2E An end seal on a multiconductor mineral insulated electric cable 2 comprises a metal pot 1, an insulating filling 7 and a closure member of ceramic or vitreous insulating material having its exposed face shaped to provide a surface flash-over distance between the apertures for the conductors greater than (prefer. ably greater than twice) the direct separation. The insulating filling 7 may be an adherent synthetic resin. The surface may have either a slot or a ridge between pairs of conductors in the form of a diameter, "Y"-shape or "X"-shape for two, three and four conductors respectively or in the form of rings around each conductor aperture. The width and the height (or depth) for the ridge (or slot) are preferably at least 3 mm.
Patent GB-882483-A (GB)
Title: Improvements in or relating to disinfectant dispensers
Inventor: TURNER HAROLD
IPC: E03D9/03
Filed: 1959-05-26
Abstract: 882,483. Disinfecting apparatus for waterwaste-preventers. BURY, THE MAYOR, ALDERMEN & BURGESSES OF THE COUNTY BOROUGH OF. May 13, 1960 [May 26, 1959], No. 17828/59. Class 26. A disinfectant dispenser to be located in a water-storage tank comprises a disinfectant tank 10 with an external top reservoir 11 for containing dispensed disinfectant to be mixed with water in the storage tank, an inlet tube 12 extending in to the lower regions of the tank 10, (so that water from the storage tank can enter it), from which extends an outlet tube 15 for disinfectant, terminating above the reservoir 11 and below the level of the inlet of the tube 12, and passing through the side of a dome 13 or like protuberance located in the reservoir 11, means being provided to restrict the tube 15 to control the flow of disinfectant. Said means can comprise a screw or bolt 16 located as shown, whereby the size of an outlet 17 may be adjusted held as desired by a nut 18 and locknut 19. The dome 13 has a small aperture 14.
Patent GB-173247-A (GB)
Title: Improvements in or relating to power control apparatus for electric furnaces
IPC: H05B7/152
Filed: 1920-06-30
Abstract: 173,247. Wade, H., (Vanadium Corporation of America). June 30, 1920. Furnace details. - The positions of the electrodes of an electric furnace are controlled in accordance with the watt consumption and the potential difference between an electrode and the hearth by an automatic apparatus of the reversible motor type wherein the circuits of the motors are controlled by separate potential devices independently of the action of the watt controlling devices. Over-running of the motors is prevented by continuously making and breaking the relay control circuits, and additional switches are provided for manual control. The invention may be applied to alternating or direct current systems. The electrodes A, B and C, Fig. 1 of a furnace are each provided with a motor 3, Figs. 1 and 2, and each motor is reversibly controlled by means of a Kelvin Balance relay K through intermediate relays 27, 30, 10 and 11. The relay K is provided with fixed current coils 51 and potential coils 53 mounted upon a pivoted arm 54 integral with a contact arm 56. The position of the arm 56 is controlled by a spring 57 the tension of which is adjusted by means of a nut 58 mounted upon a pointer 59 moving over a calibrated disc 62. The fixed contacts 35, 37 on the relay K are connected to the coils 32, 33 respectively of relays 27, 30 which in turn control the coils 24, 25 of double-pole switches 10, 11 to control reversibly the motor 3 mechanically connected to the electrode A. A high potential limit switch 80, Figs. 2 and 5, is connected in the circuit of the relay coil 33 and a low potential limit switch 90 is connected in the circuit of the relay coil 32 and the windings 88 and 98 of these switches are connected in series across the arc between the electrode A, operated by the motor 3 and the hearth. Under normal voltage conditions the contacts 82 and 92 of the switches 80 and 90 are bridged to complete at these points the circuit of the relay coils 33 and 32, but upon the occurrence of an abnormally high or low voltage the switch 80 or 90 opens the circuit of the relays 33 or 32 and the motor 3 is stopped irrespective of the action of the relay K. A continuously operated circuit breaker 111 is placed in the circuits of the relay coils 32 and 33 in order that the motor 3 may be given a stepby-step action thereby avoiding over-running. The circuit of the motor 3 contains a manually operated switch 70 which in one position allows of the automatic control of the motor 3, and in the other position places the motor 3 under the action of a manually operated switch 130. The electrodes Band C are provided with similar control systems.
Patent GB-201370-A (GB)
Title: Improvement in or relating to trousers and like stretchers and presses
IPC: A47G25/68
Filed: 1922-06-30
Abstract: 201,370. Senior, F. June 30, 1922. Trouser presses and stretchers; coat hangers.- A lazy-tongs type of stretcher is provided with a pivoted strengthening piece S and with a pivoted rod R for stretching. The rod R is supported at its end remote from the pivot in a swivel jaw bearing on one of the lattice members C<2>. Strips of fibre board &c. of usual construction are placed on the edge of the garment when stretched and held in position by spring clips. The clamp member A may be provided with a coat hanger H which may be rigid or collapsable.
Patent GB-232092-A (GB)
Title: An improved method of and apparatus for effecting the commutation of electric currents
IPC: H02M1/00
Filed: 1924-07-30
Abstract: 232,092. Japolsky, N. July 30, 1924. Vacuum or low-pressure apparatus, arrangements of; frequency. changing.-In a method of commutating electric currents, a stream of electrons is caused to pass across a gap between an electrode and a commutator, and the gap is subjected to the influence of the moving magnetic field of a polyphase current, whereby the stream of electrons crossing the gap is continuously deflected so as to strike successively the different segments of the commutator. The method is carried out by means of the apparatus shown in Figs. 7 and 8, comprising a heated filament K surrounded bv an insulating ring A on which are wound a number of windings of bare wire which form the commutator segments and are connected to terminals 1 - - 10. The filament and ring are mounted in a glass vessel from which the air is exhausted or replaced by an inert gas. The arrangement of the windings forming the commutator segments is shown in Fig. 12, successive segments forming parts of different windings, while groups of segments are repeated in the sarne order around the ring. Polyphase windings E1, E2, Fig. 8, are placed on each side of the apparatus to create a rotating magnetic field, which causes the stream of electrons proceeding from the filament to rotate at the same speed and strike the commutator segments in succession. The apparatus may be arranged as shown in Fig. 5 for frequency multiplying. The filament is heated by means of a battery B1 and is connected .to the negative terminal of another battery B2, the positive terminal of which is connected to the neutral point of a series of polyphase windings E. The other terminals 1 - - 10 of these windings are connected to the various commutator segments, and if n represents the number of times the groups of segments is repeated around the commutator ring, a current bearing n times the frequency of the polyphase currents producing the controlling magnetic field (not shown) is produced in the windings E. The winding E may be used to produce a magnetic field. rotating with n times the original frequency, which may be used for producing a further multiplication of frequency. All the frequencies normally used in wireless telegraphy can be obtained by connecting several multipliers in cascade. The invention may also be used for rectifying polyphase currents, an arrangement for this purpose being shown in Fig. 13. The current to be rectified is supplied to the primary winding P of a polyphase transformer, having a star-connected secondary Z connected to the commutator segments A around the cathode K. The controlling magnetic field E may be connected in parallel with the secondary winding Z, as shown. or it may be connected to the primary side of the transformer.
Patent GB-1494202-A (GB)
Title: Monitoring a drive system
IPC: H02H3/38
Filed: 1974-04-25
Abstract: 1494202 Protecting motor installations SIEMENS AG 25 April 1974 [18 Jan 1974] 18239/74 Heading H2K In a method of monitoring a number of hysteresis or reluctance electric motors (2, 3, 4) each driving a low-friction centrifuge and fed together from an A.C. source, the angle (#, #) between the voltage (up, u) and current (i 1 , i 2 , i 3 ) of each motor is successively measured and compared with a predetermined limit value (#*, #*) and when the angle is below the predetermined limit an indicating signal s 1  is released and/or when thereabove a further indicating signal s 2  is released. The invention is particularly applied to hysteresis motors employed in a uranium-isotope separating gas centrifuge installation, and the limit value is that which separates asynchronous from synchronous operation. A 1 kc/s. A.C. supply with phase conductors U, V, W and neutral Mp is provided by a controlled frequency changer 14 energized from a conventional mains supply 15. Signal s 1  production indicates asynchronous operation and s 2 , synchronous operation; these signals may be applied to an indicating or alarm system. Digital phase measurement.-Voltage u is fed to a squarer 20 whose zero-crossings correspond to those of the sinusoidal input and the outputs of current transformers 22, 23, 24 are selectively fed via field-effect transistor switches to a similar squarer 32. A time-difference measuring circuit 21 affords a measure of phase displaced by 30 degrees (phase displacement due to placement of tap 18 and the arrangement of the current transformers) and a comparator 33 compares (#-30 degrees) with a predetermined value set by potentiometer 34. In a further, preferred, embodiment, the output of squarer 20 is fed to a device (40, Fig. 3, not shown) which introduces a delay controlled by the predetermined limit value and a NAND gate (42) is utilized as a comparator.
Patent GB-1275505-A (GB)
Title: Artificially sweetened non-dairy, water-based food compositions
IPC: A23L2/60
Filed: 1970-04-16
Abstract: 1275505 Sweetened foods. PFIZER Inc 16 April 1970 [2 March 1970] 18312/70 Heading A2B [Also in Division C6] A non-dairy water based food contains a non-nutritive sweetening agent selected from cyclohexylsulphamic acid, saccharin, their salts (e.g. Na or Ca) and mixtures thereof in an amount equivalent in sweetness to 5-20% by weight sucrose in the food and a sodium or potassium salt of citric, adipic, gluconic, fumaric, tartaric, succinic, malic or acetic acid in an amount of 0.05 to 0.5% by wt. The food may be a carbonated or still beverage, syrup composition or jelly. The food may be prepared by adding water to a dry mix comprising the sweetening agent and the salt. Other specified components include lemon oil, orange oil, citric acid, sodium benzoate, phosphoric acid, caffeine, orange and grape juice, sorbitol, pectin and cola, maple and cherry flavours.
Patent GB-170270-A (GB)
Title: A photo-process screen and method of preparing same
IPC: G03F5/12
Filed: 1921-07-06
Abstract: 170,270. Hatt, J. A. H. Oct. 14, 1920, [Convention date]. Photo-mechanical printing-surfaces.-Relates to half-tone screens of the kind in which there are transparent, semitransparent, and opaque areas, and comprises a screen having clear openings 4, Fig. 3, wholly opaque dots 2, interspersed with the clear openings, and the remainder semitransparent. The screen is made by superposing two screen plates illustrated in Figs. 1 and 2. The plate shown in Fig. 1 is made by exposing a bichromated colloid plate through a regular cross line screen suitably spaced therefrom to produce the circular dots, completely washing away the unexposed colloid, and dyeing the exposed parts 2. The plate shown in Fig 2 is produced by printing the plate shown in Fig. 1 on to a similar colloid plate, washing away the unexposed colloid, and dyeing the remainder of the film 3 but not so heavily as the opaque dots 2. When the plates shown in Figs. 1 and 2 are superposed, there are no film layers in the transparent openings 4. Specification 14393/13 is referred to.