baber/WOPTO huggingface dataset:
Patent GB-269044-A (GB)
Title: Line space tabulating mechanism for typewriting and similar machines
IPC: B41J19/96
Filed: 1926-08-25
Abstract: 269,044. Marks, E. C. R., (Elliott-Fisher Co.). Aug. 25, 1926. Line-spacing and tabulating mechanism; key locks.-In line-space tabulating-mechanism of the kind comprising a set of depressible line-selecting stops for determining the relative position of the platen and printing- mechanism, a pivoted blade co-operates with notches in the stops to retain them in depressed position, and the set of stops is adjustable bodily to compensate for slight variations in the position of the lines on a series of forms. As applied to a machine comprising a printing-carriage movable for letter-spacing on a frame 4 which is movable for letter-spacing on rails 2 at the sides of a flat stationary platen 1. tabulating-stops 10 co-operating with a stop 15<a> on the frame 4 are arranged at line-space intervals in slots 9<a> in a block 9 secured to the righthand rail 2. The tabulating-stops are provided with stop-arms 10<c> and staggered keys lO<x>, springs 11 normally maintaining the tabulating- stops in elevated position so that the stop-arms are out of the path of the stop 15<a>. The tabulating-stops are each formed with two notches 13, 13<a>, the lower notches normally engaging a bar 12 which is trunnioned in the block 9 and is engaged by spring pins 12<d>. In operation one of the tabulating-keys is depressed and the frame t is moved until the stop 15<a> engages the depressed tabulating-stop, the frame 4 being thereby arrested in the selected line-spacing position. The depressed tabulating-stop is locked by the bar 12, release being effected automatically when another tabulating-stop is depressed. The ta.bulating-stops can be adjusted as a unit to compensate for slight variations in the position of the lines on a series of forms; for this purpose the block 9 is formed with trunnions 7, 8 engaging brackets 5, 6 on the rail 2, the trunnion 7 carrying an adjusting-nut 7<b> which abuts on the bracket 5. The block is secured by screws 5<a>, 6<a> mounted in the brackets and abutting on flats on the trunnions.
Patent GB-709710-A (GB)
Title: Improvements in the production of polymers from unsaturated compounds
Inventor: BROWN FRANK
IPC: C08F2/16
Filed: 1950-08-25
Abstract: Aqueous polymer dispersions are made by slowly introducing a polymerizable unsaturated compound, e.g. as a gas, into an agitated aqueous medium comprising a dispersing agent, e.g. an emulsifier, a stabilizer and a catalyst, which is maintained under such conditions of temperature and pressure, i.e. normal, reduced or superatmospheric, that the unsaturated compound is rapidly vaporized from the medium, and withdrawing the vapours of the compound from the system, e.g. by distillation.  Unsaturated compounds mentioned are vinyl acetate, acrylonitrile, methyl acrylate, butadiene, isoprene, and vinyl chloride.  The emulsifying agent may be sulphonated long chain aliphatic alcohols, ammonium and alkali metal salts of long chain aliphatic carboxylic acids, or ethers of polyalkylene glycols with long chain aliphatic alcohols, e.g. oleyl.  Specified stabilizers are gelatine, methyl cellulose, polyvinyl alcohol, gum acacia and gum tragacanth.  The catalyst may be a per-compound, e.g. ammonium persulpate, hydrogen peroxide or a hydroperoxide, in conjunction, if desired, with a reducing agent such as a thiosulphate, sulphite, hydrosulphite, hydroxylamine or a water-soluble ferrous salt.
Patent GB-1421261-A (GB)
Title: Method of treating the surfaces of steel plate substrates for  subsequent lacquering
IPC: C23C22/74
Filed: 1973-05-03
Abstract: 1421261 Chromating steel surfaces NIPPON STEEL CORP 3 May 1973 [4 May 1972 20 March 1973] 21065/73 Heading C7U A steel surface to be subsequently lacquered is contacted with a solution containing 5 to 150g. chromic acid, 5 to 200 g./l. oxide sol, e.g. alumina or silica, and 5 to 100 g./l. of one or more of nitrate, acetate, carbonate or a hydroxide of a transition metal; borax; molybdate; and tungstate, and then heating to 400‹C or more. The nitrate may be Ni, Cr, Cu, the molybdate or tungstate an ammonium salt, the carbonate Ni or Cu, and hydroxide Ni or Zn. The surface may be electrolytically cleaned and the steel may be annealed and temper rolled after chromating.
Patent GB-692105-A (GB)
Title: Improvements in photographic paper and in coating compositions therefor
IPC: G03C1/79
Filed: 1950-08-25
Abstract: A composition suitable for coating photographic paper comprises a suspension of barium sulphate in an aqueous dispersion of a binder therefor, the binder consisting of 25 to 100 per cent of styrene-butadiene copolymer, this percentage being the proportion by dry weight of the copolymer to the total dry weight of binder used. The remainder, if any, of the binder is preferably gelatine. Copolymer latex may be mixed with an aqueous dispersion of barium sulphate which may contain a hardener such as formaldehyde, glyoxal, water-soluble melamine-formaldehyde, urea-formaldehyde or maleamic acid-styrene-ammonia resin, or chromium chloride.
Patent GB-230366-A (GB)
Title: Improvements in carburettors for use in connection with internal combustion engines
IPC: F02M3/08
Filed: 1923-12-06
Abstract: 230,366. Cox, A. Dec. 6, 1923. Spray carburettors. -In a carburettor provided with a main nozzle, and with a pilot nozzle which is cut out of action by the initial opening of the throttle valve, the nozzles are housed in chambers open at the top and above the fuel level, so that the nozzle which is not in operation may be lifted out without substantially disturbing the supply to the nozzle which is in action. The main nozzle comprises an interchangeable nipple g, the orifice g' of which is above the fuel level, carried by a removable holder f housed in a chamber c, and the pilot nozzle comprises a calibrated nipple carried by a plug h<2> screwed into a chamber d, the chambers c, d being formed in a body a to which the main air passage b carrying a rotary barrel throttle valve may be secured in any desired position. The body a is provided with an attachment e<1> for the float chamber, the fuel supply massage d<1> for the pilot nozzle being branched from the passage c<1> supplying the main nozzle. The holder f is provided with a transverse passage f<2> adapted to align with air inlet and mixture outlet passages in the body a, the rich mixture being admitted laterally into the main air passage b axially of the throttle valve. The mixture from the pilot nozzle chamber d is conveyed to an annular chamber in the throttle casing, and thence through a duct in the throttle valve, the delivery port of the duct opening into the mixture outlet passage when the throttle is closed. Specification 231,562 is referred to. According to the Provisional Specification, the nozzles may be controlled by needle valves.
Patent GB-636918-A (GB)
Title: Improvements in or relating to the production of pyrazine
Filed: 1947-08-05
Abstract: Pyrazine is produced by subjecting piperazine or a hydrate thereof in vapour form to the action of a dehydrogenation catalyst at elevated temperature, generally about 200-500 DEG  C.  The pyrazine may be mixed with inert gas such as nitrogen or water vapour or a solution of pyrazine in benzene, quinoline, toluene, xylene or other volatile solvent used.  It is prevaporized, passed over the catalyst, and the products condensed, and fractionated, preferably after drying. Unconverted piperazine may be recycled.  Suitable catalysts are difficultly reducible metal oxides, e.g. oxides of copper and chromium, and high melting metals, e.g. platinum metals or nickel. They are regenerated by treating with oxygen-containing gas, followed by reduction where necessary.  In examples, piperazine in benzene is vaporized and passed over copper chromite on diatomaceous earth, chromium oxide or nickel on activated alumina, and palladium on charcoal.
Patent GB-863858-A (GB)
Title: A control arrangement for controlling and/or initiating any desired intermittent operation
Inventor: KADEN HELMUT
IPC: F16H27/10
Filed: 1957-07-04
Abstract: 863,858. Intermittent toothed gearing. INTRON LEIPZIG VEB. July 4, 1957, No. 21191/57. Class 80 (1). In a Geneva-like mechanism the drive-pin 7 on a rotating disc 4 is held in a retracted inoperative position, against the action of a spring 8, by a pivoted pawl 5 loaded by a leaf-spring 6, but is axially projected into an operative position, for co-operation with a Maltese cross 1, whenever a stationary electrical relay 2 is energized. When the relay is energized its arm 3 is moved into the rotational path of the tail of the pawl 5 so that the latter rides up an inclined surface on the arm 3 and is tilted to disengage the pin 7. After it has partially rotated the Maltese cross 1 the pin 7 is returned to the position shown by engagement with a fixed surface 9. The Maltese cross 1 may have any number of slots. It is stated that two oppositelyrotating discs having retractable drive-pins may be arranged adjacent one Maltese cross. Specification 825,981 is referred to.
Patent GB-1381413-A (GB)
Title: Methods of testing asynchronous sequential circuits
IPC: G06F11/22
Filed: 1973-05-04
Abstract: 1381413 Generating test patterns INTERNATIONAL BUSINESS MACHINES CORP 4 May 1973 [21 June 1972] 21222/73 Heading G4A A homing sequence for placing a sequential logic circuit in a predetermined state, compatible with testing by a testing sequence, is generated by data processing apparatus arranged to derive the sequence in reverse order from the total state (input variables and circuit state variables) corresponding to the desired set state. A sequence of total states is derived until a state having no circuit state variables is reached, this state defining the start of the homing sequence. Details of an algorithm for generating the homing sequence are described with reference to Fig. 5 (not shown). Specification 1,381,414 is referred to.
Patent GB-372173-A (GB)
Title: Improvements in the edeleanu-process for the purification of hydrocarbons
IPC: C10G21/10
Filed: 1931-07-24
Abstract: In the Edeleanu process the major portion of the sulphur dioxide is first removed from the extract or raffinate, and then the remainder by treating the extract &c. at raised temperature and about atmospheric pressure in a still provided with a rectifying column and with means for continuous supply and discharge of the liquid.  For example, the raffinate from kerosene is first heated in an evaporator to 50-70 DEG  C. until the major portion of the dioxide has passed to a condenser under 50-70 lb. pressure, and then in a column still to about 200 DEG  C. at atmospheric pressure.
Patent GB-359428-A (GB)
Title: Improvements in method and apparatus for the treatment of ceramic and other articles in tunnel kilns or furnaces
IPC: F27B9/30
Filed: 1930-07-14
Abstract: 359,428. Tunnel kilns. HARROP CERAMIC SERVICE CO., 310, West Broad Street, Columbus, Ohio, U.S.A. July 14, 1930, No. 21245. Convention date, April 10. [Class 51 (ii).] Heating gases are introduced into the firing zone of a tunnel kiln from opposite sides and in such manner that a whirling vortex of hot gases is produced. In the kiln shown, which comprises preheating, firing, and cooling zones, the combustion units 3, 4 on the two sides of the kiln are arranged in overlapping relation. Air supplied to the discharge end of the cooling zone by a nozzle 5 travels in counter-current to the goods, and is drawn off before it reaches the firing zone through outlets 6, 7. The walls of the preheating zone have inset panels 8, 10, which are staggered on the two sides of the kiln, so that the preheating gases will follow a more or less sinuous course. These panels may extend over the lower part or the full height of the walls. Floors.-The trucks 2 carrying the charge are covered by blocks 18, Fig. 5, set to leave open joints which increase in width downwards, the joints 22 across the width of the truck being of the overlapping form shown.
Patent GB-419278-A (GB)
Title: Improvements relating to pot-heads for multiple-core electric cables
IPC: H02G15/04
Filed: 1934-07-20
Abstract: 419,278. Cable - end sleeves. HERBERT, G., 19, Netherlee Road, Muirend, FLINT, F. J., 90, Niddrie Road, both in Glasgow, and VENNING, C. F. D., 5, Bewlys Road, West Norwood, London. July 20, 1934, No. 21253. [Class 36.] An end sleeve for a multicore cable having a lead sheath 4 comprises an aluminium casing 1 formed with an internally screwthreaded neck 2 adapted to screw on the end of the sheath 4. The cores 5 of the cable are separated in the casing, which is filled with compound 6, and pass out through apertures in a disc 7 which rests on an internal ridge 8 formed near the open end of the housing. The disc 7 may be covered by compound 6a.
Patent GB-388302-A (GB)
Title: Improvements in or relating to luminous electric discharge tubes
IPC: H01J61/54
Filed: 1932-07-28
Abstract: 388,302. Discharge apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. July 28, 1932, No. 21301. Convention date, Aug. 20, 1931. [Class 39 (i).] A luminous electric discharge tube is provided with one or more auxiliary electrodes in the form of wires extending longitudinally of the tube and, at least partly, superficially oxidized. The wires may consist of zirconium or aluminium oxidized electrolytically. In the example the discharge tube 1 is provided with incandescent cathodes 3 consisting of helically wound wires, and two auxiliary electrodes 4 extending in the longitudinal direction of the tube and connected to one another at their inner ends by an insulating tube 5 of porcelain, their outer ends being extended out through pinches 6. The tube may contain a filling of a rare gas at a pressure of about 8 m.m. of mercury, or the filling may consist of a vapour or a mixture of gas and vapour. In a modification the tube contains two cylindrical cold electrodes, with an auxiliary electrode in the form of a superficially oxidized metal rod extending from one electrode nearly to the other. Specification 388,665 is referred to.
Patent GB-876176-A (GB)
Title: Improvements in and relating to power driven roller conveyors
Inventor: BURGOINE HERBERT WILLIAM
IPC: B65G13/00
Filed: 1957-07-05
Abstract: 876,176. Roller conveyers. BRITISH MATHEWS Ltd. Aug. 1, 1958 [July 5, 1957], No. 21334/57. Class 78 (1). The rollers 3 of an elevator in the form of a helix are closely spaced and are driven by frictional contact with endless driving belts, a separate belt being provided for each half-turn of the helix. The shaft 25 has belt-driving pulleys 27, 29 secured to it. These pulleys engage V-belts 31, 33, respectively, one of which extends under the rollers 3 above the shaft 25 and the other of which engages the rollers below it. Each belt is maintained in contact with the rollers 3 on the driving run by rollers 35 disposed between each pair of rollers 3. At the end of the driving runs the belts pass round the idler pulleys 39, 41 and return to the driving pulleys in a path defined by a series of rollers 43 mounted to rotate about vertical axes. The shaft 25 is driven through belt gearing by a reversible electric motor 15. The motor, however, may be unidirectional, in which case it is connected to the shaft 25 through reversible gearing. More than one driving belt may be provided for each section of the elevator.
Patent GB-790459-A (GB)
Title: Improvements in or relating to injector devices
IPC: F04F5/46
Filed: 1956-07-10
Abstract: 790,459. Heating liauids. SCHIFF & STERN GES. July 10, 1956 [July 25, 1955], No. 21359/56. Class 64(1) [Also in Group XXVIII] Water heating apparatus comprises a water inlet chamber 1 concentrically surrounding a steam inlet chamber 2 having an axial steam jet-forming nozzle 5 which induces water through ducts 9 connecting the water chamber 1 with a mixing chamber 4 leading to a flared tube 7, the inwardly tapered end 11 of which forms with the surrounding end 10 of the steam chamber 2 a main annular steam-forming nozzle 12. The combined steam and water is discharged through a tube 14 to an accumulator 16.
Patent GB-763343-A (GB)
Title: New water-soluble mordant azophthalocyanine dyestuffs and process for making them
IPC: C09B43/124
Filed: 1953-07-31
Abstract: The invention comprises water-soluble mordant phthalocyanine-azo dyes of the formula <FORM:0763343/IV(b)/1> in which A represents a substituted or unsubstituted metalliferous phthalocyanine molecule in which the groups shown are in the 3- or 4-position phthalimide from which the phthalocyanine is derived, n is a whole number from 1-4, X is hydrogen, halogen, methyl, hydroxy, nitro, sulpho, y is hydrogen, halogen, ethyl, ethoxy, nitro, sulpho, or carboxy, and z is hydrogen, halogen, alkyl, or alkoxy, and the -SO2 NH- group is in m- or pposition to the azo linkage.  They are made by reacting one mol of a phthalocyanine sulphochloride of the formula:- <FORM:0763343/IV(b)/2> in an aqueous medium in presence of an acid-binding agent with at least one, advantageously 2-4, mols of at least one aminoazo dyestuff of the formula:- <FORM:0763343/IV(b)/3> wherein the NH2 group is in p or m position to the azo linkage, under conditions such that any sulphochloride group which does not react with an amino-azo dyestuff is hydrolysed.  Examples are given of the reaction of copper, nickel, cobalt, iron, chromium, or aluminium phthalocyanine 4, 41, 411, 4111 tetrasulphochloride, or of copper phthalocyanine monosulphochloride-trisulphonic acid with various aminoazo dyes of the above general formula.  The preparation of several azo-dyes of this type by diazotising and coupling in either direction is referred to, the amino group being formed after coupling by reduction of a nitro group or hydrolysis of an acetylamino group present in either component.
Patent GB-313789-A (GB)
Title: Spindle oil guard for eliminating the spraying of oil from spindles of mules
IPC: D01H7/20
Filed: 1928-07-24
Abstract: 313,789. Haughton, M. July 24, 1928. Mules; spindle apparatus. -A guard to prevent spraying of oil from the bolster bearings of mule spindles comprises a plate a perforated for the passage of the spindles and provided with feet f through which screws b pass to secure the guard to the bolster plate. The feet f provide a space g between the guard and the bolster plate for the introduction of lubricant.
Patent GB-583570-A (GB)
Title: Signalling devices for bicycles or motor cycles
IPC: B62J6/00
Filed: 1944-11-02
Abstract: 583,570. Cycle handles. DAVIDSSON, T. A. Nov. 2, 1944, No. 21464. [Class 136 (iii)] [Also in Groups XXXVII and XXXVIII] Handles have openings 3, Fig. 1, registering with similar openings in the handle-bar 1 through which light from an internally mounted lamp is emitted to give direction signals (see Group XXXVIII). Translucent red prisms 11 may be inserted in the openings. Alternatively the grips may be made entirely of translucent plastic material, and the light from lamps 6 may be emitted through curved portions 2a, Fig. 5, covering the ends of the handle-bar 1 the switches being mounted in grooves 12 inside the grips 2 (see Group XXXVII).
Patent GB-1046094-A (GB)
Title: Improvements in or relating to refrigerating tanks
Inventor: LAW FRANK
IPC: F25B39/02
Filed: 1964-05-25
Abstract: <PICT:1046094/C1/1> A freezing tank for use in the process described in Specification 674,938 is provided with a series of removable units, each comprising an upper and a lower header pipe connected to one or more rows of spaced pipes, the pipes of each row and the rows themselves being disposed in a fan-like pattern.  As shown, each unit comprises an upper header pipe 27, a lower header pipe 28 and two rows of pipes 21, 22, the units being disposed in a tank having divergent side walls 10, 11 made up of refrigerant pipes 20 having interconnecting webs 25 (Fig. 3, not shown).  The front pipe of one of each pair of rows is extended through the bottom of the tank and connected byfl exible coupling pipes 33 to a lower manifold 32 and each upper header is connected by a flexible pipe to an upper manifold.  As illustrated in Fig. 2 (not shown) the tank has a vertical rear wall 13, a sloping front wall 12 provided at its bottom with a full width door, and a sloping bottom wall 14, the width of the top of the front wall being greater than that of the rear wall by 1/2 inch for every unit and the distance between the upper edges of the front and rear walls being greater than that between the bottom edge of the front wall and the plane of the rear wall by 3/8 inch for each pipe in one row.  The side and/or bottom walls of the tank may be corrugated with the pipes disposed in but spaced from the corrugations, and the pipes are preferably staggered so that they are equidistant from each other in all directions.
Patent GB-532687-A (GB)
Title: Improvements in or relating to electric power cables
IPC: H01B7/02
Filed: 1939-07-25
Abstract: 532,687. Electric insulation. STANDARD TELEPHONES & CABLES, Ltd., SCOTT, T. R., WEBB, J. K., and FOORD, S. G. July 25, 1939, No. 21606. [Classes 36 and 38 (i)] To form a body of insulation around electrical apparatus, solid insulating material which may be paper tape impregnated or coated on one or both sides with polystyrene, or simply polystyrene film without paper support, is applied, as by wrapping, so as to leave interstices which are filled with liquid insulating material, e.g. styrene, arranged to have a delayed solvent action on the solid insulation. The liquid may be basted-on while the wrappings are being applied. The delay in action may be obtained by mixing inert liquids such as mineral oil with the solvent, or by coating the film with material such as cellulose acetate which resists penetration to some extent, or by basting the uncoated side of the tape. Instead of wrapped tape, packed beads or rods may be applied, the solvent being subsequently forced into the interstices by suction. Polyisobutylene, polyethylene, polymerized para-divinyl-benzene, rubber, guttapercha and balata are mentioned as alternatives to polystyrene. The invention is applicable to power cables and accessories such as barrier joints and terminals. Specifications 454,923. 490,814, [both in Group IV], 429,611, 504,720, 506,277, 508,036, and 532,688 are referred to.
Patent GB-1464968-A (GB)
Title: Method and apparatus for preparing smears of biological liquids
IPC: G01N33/48
Filed: 1974-05-15
Abstract: 1464968 Automatic sample preparation TECHNICON INSTRUMENTS CORP 15 May 1974 [29 June 1973] 21635/74 Heading G2J A biological fluid aspirated in known manner from one of several containers 12 is exuded on to a ribbon 42 at 40 and smeared on to a substrate 46. The substrate containing several such smears is stained fixed etc. at 24 and the smears accumulated at 98 for inspection. The process is automated.
Patent GB-1040208-A (GB)
Title: Flat-bottomed centrifugal drum with an open bottom
IPC: B04B11/04
Filed: 1965-05-21
Abstract: 1,040,208. Centrifugal-strainer drums. BETEILIGUNGS-UND PATENTVERWALTUNGSGESELLSCHAFT. May 21,1965 [May 22, 1964], No. 21652/65. Heading B1D. In a centrifugal strainer drum whose flat bottom is connected to the hub by radially extending spokes 4 (Fig. 1, not shown) thereby forming a divided annular discharge aperture, the spokes are of aerofoil cross-section and the angle a made by the flattened side with the plane perpendicular to the axis of rotation of the drum is determined by tan alpha = c/v, where v is the peripheral speed of the spoke at the cross-section in question and c is the mean falling speed of discharging solids. The valve of v varies with distance from the drum axis and the spokes may therefore be of twisted form, or a mean value of v may determine the angle alpha for a uniform spoke. Solids are removed from the straining wall of the drum by a stationary knife, and the angle a is measured from the negative velocity co-ordinate as shown. The discharge aperture widens radially, downwards, and the spoke shape minimizes sticking of discharging solids. In practice alpha may be 25 to 60 degrees.