baber/WOPTO huggingface dataset:
Patent GB-335215-A (GB)
Title: Improved method of destructive hydrogenation
IPC: C10G1/00
Filed: 1929-06-19
Abstract: 335,215. Strong, H. W., and Imperial Chemical Industries, Ltd. June 19, 1929. Catalytic agents, preparation of.-In a catalytic process of destructive hydrogenation, in the liquid phase, of carbonaceous materials, such as oils or suspension of coal in oils, the catalyst consists of an extended solid metallic surface formed by the deposition of a thin coating of one metal upon another, such as iron or mild steel coated with tin or iron coated with nickel, the coating being effected by dipping, spraying or electrolytically. The walls of the vessel may be coated in a similar manner and the catalyst may be situated therein in a fixed position, e.g. as a convolute baffle or as a number of plates arranged side by side or above one another as described in Specification 336,991. Alternatively, the catalysts may take the form of loose elements, such as cylinders, discs, balls, &c., the reaction vessel only being partially filled therewith. Activation of the catalyst, particularly tinned iron or steel, is effected by a preliminary treatment which may remove part of or substantially all the coating metal, an example of such treatment being with acid or alkaline solutions at temperatures which may vary from normal to boiling point. A five to ten per cent solution of hydrochloric or nitric acid or a ten per cent solution of caustic soda may be employed. Five per cent of urea may be added to the acid solution to form a surface layer of stannous hydroxide which is subsequently reduced in the course of the process. Alternatively, the plates may be immersed in a bath of molten salt such as sodium metaphosphate or borax at a temperature of 900‹ to 1000‹ C. In a second modification, tin plate is heated for half an hour or more in a bath of oil or paraffin wax at 350‹ C. whereby most of the tin is alloyed with the iron. Catalysts so activated may be subjected to a stream of reducing gas, e.g. moist hydrogen at 500‹ C. and under a pressure up to 200 atmospheres. In an example, a vertical, highpressure reaction vessel, lined internally with tin or tin alloy, is provided with a number of tinplate trays partly filled with tin-plate discs or cylinders. The vessel is maintained at a temperature of 450‹ C. and preheated mineral oil in the liquid state is passed with hydrogen under a pressure of 250 atmospheres. The liquid and vaporous products are separated, the former being recirculated and the gas cooled to condense the middle and light oils, the gas, after purification, being returned with fresh hydrogen to the reaction vessel. The Provisional Specification describes also the use of chromium plated iron. Specifications 171.307, 171,390, 174,321, 277,404; 278.041 and 322,167. [both in Class 32, Distilling &c.], and 335,216 also are referred to.
Patent GB-321147-A (GB)
Title: Improvements in or relating to switchgear for operating systems of electric lighting in railway carriages and other vehicles
IPC: H02J7/14
Filed: 1928-06-29
Abstract: 321,147. Kings Patent Agency, Ltd., (Phillips, W. B.). June 29,1928. Supplying consuming devices from variablespeed generators.- In electric lighting systems for railway and like vehicles in which one of a number of wires extending throughout the system serves for the energization or control of the main switches, this wire serves also for the supply of current, under automatic control, to external lighting circuits. In a 5-wire system, Fig. 1, in which internal lights are switched on and off by electromagnetic switches energized by currents from " on " and off" wires running from carriage to carriage, the on " wire is also used to supply external embarkation lights so that additional wiring between carriages is not required for such supply. The five wires a - - e, Fig. 1, between carriages serve respectively as positive paralleling main, " off " wire, negative main, " on " wire and lights main. Two batteries 2, a change-over switch 4, a cut-in 3, a resistance 6 and a hand-control switch 11 for applying the control impulses to the wires b, d are provided as usual. When the switch 11 is operated by the guard to switch on the lights 7, the " on " main and so the coil f of the switch 5 is energized. The core 19 rises, first closing the lights circuit at 5<1> and energizing the holding coil g, and then breaking the circuit of the coil f at 18 by a blade 17 operated with a time-lag by spaced lock-nuts on a spindle connected to the core 19. As the core 19 rises, a circuit is also closed at 16 to connect the wires d, e through an auxiliary switch 4<1> on the changeover switch 4 so that the external lights 8 then light whenever the train slows down. As the " on " wire d of lighted carriages is energized, all the switches 5 of separate carriages must operate and the lights of extra carriages coupled on will be automatically switched on without operation of the corresponding switch 11. A coil of the switch 5 may be energized through the main b from the switch 11 to lower the core 19 and switch the lights 7 off. Fans 9 may be provided. In a modification, Fig. 5, the main switches are of the type, with " on " and " off " coils only and screws 25, 26 on an arm 29 on the main switch brush 28 operate an auxiliary switch brush 27 with a time-delay. Movement of the brush 27 from the contact 23 to the contact 24 breaks the circuit of the " on " coil and establishes the supply to the " on " wire.
Patent GB-1430885-A (GB)
Title: Process for preparing a purified extract of quillaia bark
IPC: A61Q5/00
Filed: 1974-05-01
Abstract: 1430885 Quillaia extract LABORATOIRE L LAFON 1 May 1974 [3 May 1973] 19001/74 Heading C2U [Also in Divisions A5 and C5] Purified extract of Quillaia bark, substantially free from tannins, in which the bark is subjected to repeated extraction by an extracting solvent, the combined liquid extracts are evaporated to dryness, warm water is added to the residue, tannins are precipitated by means of an organic complexing substance comprising cinchonine, egg albumen or polyvinylpyrrolidone, and the purified extract is recovered, is useful in cosmetics and shampoos.
Patent GB-813564-A (GB)
Title: Supporting and pleating device for draperies
Inventor: BERNHARD JOSEPH
IPC: A47H13/16
Filed: 1957-06-17
Abstract: 813,564. Suspending curtains. CONSOLIDATED TRIMMING CORPORATION. June 17, 1957, No. 19034/57. Class 52(5) A supporting and pleating device for curtains comprises spaced fingers 31, 32, 33, 34 for insertion in hook tubes 28, a suspension hook 41 secured to webs 39, 40 at the lower ends of the fingers, and a pleat-locking element 42 pivotally mounted on the web 39 for movement from an inoperative position shown in Fig. 12 to the operative position shown in Fig. 3, in which the limbs 47, 48 project between adjacent fingers to enter rearwardly extending pleats 22, and a stop bar 44 abuts the hook 41. In modifications the fingers are two in number or are connected in twos by cross bars and the hook 41 is secured to a separate cross bar.
Patent GB-279933-A (GB)
Title: Improvements in conveyors or screens for coal and other minerals or materials
IPC: B07B1/42
Filed: 1926-07-31
Abstract: 279,933. Barker, W. H. July 31, 1926. Jigging conveyers.- In jigging conveyers and screens of the kind in which the conveyer &c. has a number of double-inclined rolling surfaces c attached to its lower surface which rest on rollers f supported by double-inclined rolling surfaces b carried by a base member, each double-inclined surface consists of relatively steep and flat rolling surfaces g<4>, g<3> respectively, and the conveying action takes place while the roller is travelling up the longer and steeper surface. Specification 255,611 is referred to.
Patent GB-1463885-A (GB)
Title: Condensed pyrrole mercapto compounds
IPC: C07D239/10
Filed: 1974-05-01
Abstract: 1463885 Condensed pyrrole mercapto compounds CIBA-GEIGY AG 1 May 1974 [3 May 1973] 19093/74 Heading C2C Novel compounds (I) (including salts and tautomers thereof) where Ar is a grouping which along with the adjacent carbon atoms form an o-arylene or an o-heteroarylene residue, each of R 1  and R 3  independently is hydrogen or a radical of aliphatic character, R 2  is a hydrogen atom, a radical of aliphatic character or a free carboxyl group or functional derivative thereof and Alk represents a substituted or unsubstituted alkylene or alkenylene radical contributing 2-5 carbon atoms to the ring, are made by standard methods. 1 - Methyl - 1,4,5,6 - tetrahydro - 2 - pyrimidine thiol and 2-mercapto-1,4,5,6-tetrahydro-5-pyrimidinol are also prepared. Pharmaceutical preparations having hypotensive and decongestant properties contain (I) as active ingredient. Administration is orally, parenterally or topically.
Patent GB-147086-A (GB)
Title: Improvements in synchronising devices
IPC: H04L7/04
Filed: 1920-07-07
Abstract: 147,086. Struxiano, L. A. L. April 16, 1919, [Convention date]. Electric clocks. - In an arrangement for the electric synchronism of clocks, on the shaft A of the regulating apparatus is mounted a magnetic clutch E forming a slip ring, and carrying a brush C, which rotates with the shaft within a stationary distributing ring D provided with six contacts; conductors run from these contacts to six solenoids B<1> - - B<6> at the receiving station. Current is supplied to the slip ring by the generator S through the brush F, the other lead from the generator S being taken to one terminal of each of the solenoids. As the shaft A rotates, the solenoids are successively energized and attract their cores, which are pivotally connected in pairs to three lever arms G', G<2>, G<3>, swing- ing in pivots at H<1>, H<2>, H<3>. The rocking movement of the lever arms, due to the successive excitation of the solenoids, imparts a rotary motion to the shaft M corresponding to that of the shaft A. The shaft M is connected to the minute wheel in such a way that each attraction of a solenoid core causes the movement of the hand through a minute division. If a small motor R be connected to the shaft M, to supply additional energy, the device applies a braking action and the speed will not vary. Any number of clocks may be actuated by duplicating the lines from the distributor.
Patent GB-245370-A (GB)
Title: Toasting apparatus
IPC: A47J37/08
Filed: 1925-07-28
Abstract: 245,370. Minchin, R., and Newman, R. July 28, 1025. Toasting-apparatus.-In toasting-apparatus of the type wherein the bread or other material is carried by an endless band past the heating- element or elements, an inclined guard rail, or rails, prevents the bread from falling against the heating-element or elements. As shown in plan in Fig. 2, the bread is carried by a metal band 10 past heating-elements comprising insulating and supporting blocks 15, 16 and nichrome or other resistance wire wound in, or on, the blocks. Inclined guard rails 17, 18 are mounted in front of the heaters. The band 10 may be in one piece or may consist of articulated sections and is wider than the drums 11, 12 to enable clips to be attached to the belt to prevent muffins or other round articles from rolling on the band 10. The drum 12 is driven at a regulable speed by an electric motor.
Patent GB-974167-A (GB)
Title: A connecting link which can be adjusted in length
IPC: F16B7/00
Filed: 1961-05-26
Abstract: 974,167. Links. FABBRICA ITALIANA MAGNETI MARELLI S.p.A. May 26, 1961 [May 27, 1960], No. 19141/61. Heading F2K. A connecting link, particularly for use in a windscreen wiper mechanism, and which is adjustable in length, comprises two flat elements 1, adapted to be locked together as by a bolt passing through a circular hole in the element 1, an axially extending slot 7 in the element 2, and nut and washer 5, 6, when such locking device is released the elements 1, 2 being slidable relatively to one another by rotating a screwdriver or other tool placed against surfaces of holes 9 in the elements 1, 2. The holes 9 may be triangular as illustrated in Fig. 1, or as in three other embodiments: (1) the triangular holes have curved sides; (2) one hole is triangular and the other is shaped as a number of interconnected triangles; (3) the holes are formed as elongated slots each having one toothed side.
Patent GB-137250-A (GB)
Title: Combined cigars and holders
IPC: A24D1/04
Filed: 1919-08-02
Abstract: 137,250. McAuliffe, J. W. Aug. 2, 1919. Cigars.-In a combined cigar and holder the butt end of a cigar bunch is enclosed in a cup 1 which, with a stem 3, is formed of longitudinal sections held together by a bushing 6 screwing on the stem. The cup, which may be of metal, is formed with an internal rib 4. The wrapper 7 of the cigar is carried backward over the cup, its free end 8 being clamped at the bottom by a cork or other mouthpiece 9 that screws on the bushing 6.
Patent GB-811823-A (GB)
Title: Improvements in or relating to radio communication apparatus
IPC: H04B1/03
Filed: 1957-06-18
Abstract: 811,823. Aerials; radio-receiving apparatus. WESTERN ELECTRIC CO. Inc. June 18, 1957 [June 21, 1956], No. 19169/57. Classes 40 (5) and 40 (7). Radio communication apparatus is housed in two spaced substantially closed conductive containers which are linked by an impedance element and form a dipole aerial for the apparatus. The Figure shows a pocket receiving apparatus 1 comprising two groups of components 2 and 21 housed respectively in containers 3 and 3<SP>1</SP>. The power supplies, output stages, and loud-speaker 4 are in container 31. The containers are separated from each other by dielectric material 5 approximately oneeighth of an inch thick. The input transformer T has one end 19 of its primary winding P connected to the surface of the upper container and the other end to the surface of the lower container at 11. As shown, an insulated cable 6 containing three conductors 7, 8 and 9 links the groups of components 2 and 21. No radio frequency insulation between the components and the housing is provided and thus it is necessary to prevent these conductors from by-passing the transformer primary P. This is done in two ways. In the case of conductor 7 this is led turn for turn parallel to the primary winding and serves as an additional primary path which offers little impedance to lowfrequency currents whilst for conductors 8 and 9 radio frequency choke coils 8<SP>1</SP> and 91 are provided. The containers are united into a rigid structure by being embedded in a plastic coating 14 having openings 15 for the sound from the loud-speaker. A conductive shield 16, attached to the centre-tap of the primary winding is provided and stabilizes the intercontainer capacity when the apparatus is carried in the pocket with the shield nearest the person. When carried with one container above the other vertically polarized signals may be received. Rotation through 90 degrees enables the receiver to be used in conjunction with a horizontally polarized transmitter.
Patent GB-1236302-A (GB)
Title: Improvements in or relating to liquid petroleum gas vaporizers
Inventor: GOLDEN CARL ERROL
IPC: F23K5/22
Filed: 1969-04-15
Abstract: 1,236,302. Vaporization of liquid petroleum gas. RANSOME TORCH & BURNER CO. 15 April, 1969, No. 19254/69. Heading BIB. [Also in Division F2] Liquid petroleum gas (LPG) is vaporized in an externally-heated metal container 6 wherein a hollow float 19 controls the inletvalve 38 which admits LPG from source 8 into the container and also controls the valve 58 in the cylinder 52 at the opening into the vapour discharge pipe 53. The vapours make an abrupt turn before entering the upper end of cylinder 52, and this causes entrained liquid to fall back into the lower part of the container. The float 19 controls valve 38, by a pivoted lever and link mechanism 22, 28, 29 and a rod 36, in such the way that valve 38 opens or closes so that the level of liquid within the container is maintained substantially constant. The lower end of container 6 is heated by flames 39 resulting from the combustion of gas issuing from orifices 41 in ring burner 42. The flames are caused to adhere to the lower end of the chamber by hoops 43. The hot gases flow up the annular space 49 between container 6 and thermally-insulated jacket 44 to a flue 47. The burner 42 is regulated by a thermostat tube 56 in vapour-discharge pipe 53. In another embodiment (Fig. 3 - not shown), the vapour discharge valve is omitted but the interior of the upper end of the container is provided with steel wool and a cup for receiving some of the LPG feed.
Patent GB-448152-A (GB)
Title: Pulverizer
IPC: B02C17/06
Filed: 1935-07-05
Abstract: 448,152. Ball and like mills. GODINEZ, M., 4510, N. Sawyer Avenue, Chicago, U.S.A. July 5, 1935, No. 19274. [Class 59] A pulverizing- machine comprises a rotor provided with spaced discs rotating in a casing, the discs which may be plain corrugated &c. dividing the casing into chambers which are provided with grinding bodies. Rotation of the discs provides a bridging or jamming action on the grinding bodies to elevate and cascade them over the rotor shaft. As shown in Fig. 1, a shaft 21 provided with waved or corrugated discs 29, 30 separated by spacing cylinders 51, revolves in a stationary drum 1. The discs separate the drum into chambers which contain balls of varying sizes and these balls are carried round by the discs with a lateral contracting and expanding action until they are discharged over the spacing cylinders 51 onto the mass of balls below as shown in Fig. 3. During this lifting action, the fine material percolates through the mass of balls to the bottom of the drum and passes under the disc to the next chamber. Air enters the drum 1 through port 13 and passes under a partition 55 in each chamber thereby carrying off fines to an outlet 14. Material is fed to the centre of the drum through main inlet 9 or through auxiliary inlets 10 ...12 and after being ground is discharged through outlets 15, 16 at opposite ends of the drum. The distance between the peripheries of the discs and drum may be such as to permit the balls to pass from one chamber to the other, e.g. the disc 33, Fig. 1, and in a modification the balls may pass from one chamber to the next throughout the mill, the discharge taking place through adjustable grids at each end of the drum, or one grid may be closed so that the material fed to that end of the mill travels the entire length of the mill before it is discharged. The drum may have water jackets 6, Fig. 3, discharge plugs 59 and manholes 56. The drum may be tapered towards each end and mounted on trunnions and rotated for batch grinding.
Patent GB-476375-A (GB)
Title: Improvements in and relating to methods of uniting metals
IPC: B23K1/00
Filed: 1937-07-12
Abstract: 476,375. Making composite plates, electric fittings, &c. by soldering. BRITISH THOMSON-HOUSTON CO., Ltd. July 12, 1937, No. 19295. Convention date, July 16, 1936. Drawings to Specification.. [Classes 83 (ii) and 83 (iv)] In uniting articles consisting of metals or alloys which form amalgams with mercury, a film of mercury is applied to the clean surfaces of the parts, which are then brought into intimate contact and treated for the removal of entrapped gas and are then subjected to simultaneous heat and pressure to vaporize excess mercury and thus complete the joint. Parts of silver, copper, lead, tin, barium, bismuth, cadmium, chromium, gold, magnesium, manganese, potassium, sodium, strontium and iron may thus be united to parts of the same or the other metals. In joining parts of copper and silver, the copper may be cleaned by acid dipping or scrubbing with pumice and the mercury applied either in the form of an aqueous solution of mercuric nitrate and sodium cyanide or metallic mercury and sodium cyanide by means of a pad of chamois skin so as to avoid extraneous particles in the joint. After drying the part is polished by a dry chamois skin pad. A strip of silver, e.g. 3 mils. thick, is brushed or wiped clean and coated by immersing in a bath of metallic mercury. After brushing, it is pressed by hand on the amalgamated copper part. The parts are then either passed through rubber pressure rolls, if flat, or the silver part is patted down with a stiff wire brush to remove entrapped gas. The parts are then heated and pressed between platens heated, e.g. electrically. to a temperature below 290‹ C. and preferably between 225-250‹ C. in order to complete the joint. Prior to placing in the press, the parts may be enclosed in a cushion of compressible material, such as aluminium sheet, pressboard or heavy paper or parts of such material may be placed thereon. Irregularities of the surfaces are thus compensated for and intimate contact between the parts ensured. The pressure may vary from 500-40,000 lb. per sq. in., preferably between 1000 and 4000. If desired, the parts may again be heated in a curing oven. A rupture-free layer of an alloy of copper and silver amalgams is formed between the amalgamated surfaces of the parts. In joining two parts of copper to an intermediate strip of silver, the silver is amalgamated on both surfaces and the copper parts on their inner surfaces. Copper bars may be lap jointed by forming a 2" bevel on each part and after amalgamation inserting an amalgamated piece of silver of 0À002" thickness and applying a pressure of 40,000 lb. per sq. in. at a temperature of 110‹ C. for 5 minutes. The parts are then removed from the press and heated in an oven at 110‹ C. for 12 hours. A copper electric switch stud is united to a copper tongue by slotting the end, amalgamating both parts, inserting the tongue together with amalgamated silver foils in the slot and placing between steel blocks and the whole assembly between the heated platens of an hydraulic press.
Patent GB-859938-A (GB)
Title: Improvements in and relating to the production of shaped articles
IPC: C04B35/58
Filed: 1959-06-08
Abstract: A sintered filamentary body of MoSi2 is produced by extruding a mixture comprising powdered MoSi2 and a thermosetting resin binder such as phenol formaldehyde, phenol furfural, rescorcinal formaldehyde, urea formaldehyde, melamine formaldehyde, cross linked styrene and cross linked epoxy resins. The powders are minus 100 mesh Tyler screen size and 100 parts of MoSi2 are mixed with 5 to 30 parts by weight of resin and moistened with ethyl alcohol.  Hot or cold extrusion is effected in a batch or continuous press, curing during or after extrusion, and final sintering at 1700 DEG C. in a graphite tube furnace under vacuum or an argon atmosphere.ALSO:Filamentary articles of MoSi2 are produced by extruding a mixture comprising powdered MoSi2 are mixed with 5 to 30 parts by weight of a similar particle size thermosetting resin such as phenol formaldehyde, phenol furfural, rescorcinol formaldehyde, urea formaldehyde, melamine formaldehyde, cross linked styrene and cross linked eopxy resins, the mixture is moistened with ethyl alcohol and then cold or hot extruded. Curing is effected either during or after extrusion and sintering is effected at 1700 DEG C. under vacuum or an argon atmosphere.
Patent GB-381955-A (GB)
Title: Removal of tin from antimonial lead and other metals or alloys of low melting point
IPC: C22B13/06
Filed: 1931-07-06
Abstract: 381,955. Metals and alloys. BYRNE, E. L. W., 201, Bank Chambers, 329, High Holborn, London.-(American Smelting & Refining Co. ; 120, Broadway, New York, U.S.A.) July 6, 1931, No. 19476. [Class 82 (i).] In a process for the removal of tin from metals and alloys of low melting - point, particularly antimonial lead which may also contain arsenic and copper, the molten metal is rapidly agitated to form a tin dross, the dross is stirred back into the bath to further oxidize the tin and removed at intervals, and the operation continued until the desired composition is reached. The process may be carried out by forming a vortex in a bath 10 of the molten metal, by the rotation of an impeller 12. If the bath of antimonial lead contains copper, the copper will separate as a dross during the heating and may be removed. The process is said to be particularly suitable for the production of shot metal.