baber/WOPTO huggingface dataset:
Patent GB-852942-A (GB)
Title: Improvements in or relating to document cases of synthetic plastic sheet material
IPC: B42F7/02
Filed: 1959-02-09
Abstract: 852,942. Filing papers ; tabs. LENNARTZ, W. Feb. 9, 1959 [Feb. 21, 1958], No. 4386/59. Classes 16 and 146(1), A document case of plastic sheet closed along two or three edges comprises a flap 2 bent over from one side and secured along a welded seam 3 to the opposite side 1, an extension 2<SP>1</SP> of the flap being secured to the side 1 again along a welded seam 4 to form a pocket which car receive an interchangeable insert 5.
Patent GB-281217-A (GB)
Title: Improvements in vacuum cleaning and washing apparatus
IPC: A47L11/30
Filed: 1927-02-17
Abstract: 281,217. Breton, P. Nov. 25, 1926, [Convention date]. Addition to 271,152. Floors, cleaning.-The container 1 of a vacuum cleaning and washing device as described in the parent Specification is formed from sheet metal and is substantially of cylindrical form but with flattened portions at the front and base, as shown, its axis being horizontal and at rightangles to the direction of movement of the device during use. To reduce the agitation of liquid in the container when the device is being used, one or more partitions 43, which may be apertured, are provided. Liquid, which is sucked up from the floor or other surface being treated, is drawn into the container through a slot 34 and a tube 4, and is filtered by means of a sheath d of filtering material. The sheath surrounds a perforated tube a which is carried by a perforated stopper b. The supply of liquid through the stopper and through the brush 36 is controlled by a spring-pressed valve g connected by rods h, h<1> to an actuating lever j. The handle i<1> of the device is connected to the container by a bayonet joint, the arrangement being such that the locking of the handle causes the end of the rod h<1> to engage with the top of the rod h.
Patent GB-288513-A (GB)
Title: Improved switch rail for mono-rail suspended railways
IPC: E01B25/26
Filed: 1928-02-13
Abstract: 288,513. Haferkorn, O. Feb. 13, 1928. Elevated railways.-A switch for mono-rail suspended railways comprises a rail f hinged at i to fishplates g secured to the main rail d and notched at k to engage a similar end on one of the branch rails e. An abutment n prevents downward movement of the rail f, while fishplates l guide it into engagement with the branch rails. The upward and transverse movements of the rail f are obtained by a separate handle o gapped at q for application to the rail.
Patent GB-1492982-A (GB)
Title: Driven plates for friction clutches
IPC: F16F15/129
Filed: 1975-01-31
Abstract: 1492982 Clutch discs AUTOMOTIVE PRODUCTS Ltd 31 Jan 1975 [31 Jan 1974] 04487/74 Heading F2U A torsionally resilient clutch disc comprises an inner annular friction facing carrier 22 formed of two discs 20, 21 one (or both, as shown) of which is dished to clamp a ring of friction material 33, 34 resiliently against a disc 12, 13 fixed to the hub 10, 11 of the clutch disc and so provide damping. The torsional resilience is by means of springs 28 in windows of the carrier 22 and the discs 12, 13. Disc 12 has axially extending arms 29 which pass through slots 30 of the carrier 22 with clearance and engage in slots 32 of the disc 13, the arms 29 and slots 30 co-operating to limit the angular movement of the carrier 22 relative to the hub 10, 11. Springs 28 may be of different sizes and come into action progressively.
Patent GB-735108-A (GB)
Title: Improvements in and relating to nutcrackers
IPC: A47J43/26
Filed: 1952-02-20
Abstract: 735,108. Nutcrackers. LLOYD, A. O. Feb. 25, 1953 [Feb. 20, 1952], No. 4491/52. Class 128. A nutcracker comprises arms 11, 12 pivoted together at one end ; arm 11 being channelled, e.g. curved in section, to receive a nut ; arm 12 having an abutment surface 17 and one or more additional abutment surfaces 18, 19 . . . for large nuts such as a Brazil nut 20. One or both arms may be cranked at the pivoted end. The arm 11 may have flutes 15 along each side. Parts of the edges of the arm 11 may be cut away to facilitate the cracking of large nuts.
Patent GB-1130851-A (GB)
Title: Cationic surface active agents
Inventor: TOPHAM ARTHUR
IPC: C08G85/00
Filed: 1965-02-02
Abstract: 1,130,851. Sulphonamides containing amino groups. IMPERIAL CHEMICAL INDUSTRIES Ltd. 19 Jan., 1966 [2 Feb., 1965], No. 4532/65. Heading C2C. The invention comprises naphthalene sulphonic acid/CH 2 O condensates wherein the SO 3 H groups are converted into amides which are substituted by amino groups, each connected to the amide N atoms by an organic radical. In examples, the Na salt of a compound of formula in which B is a naphthalene-2-carboxylic acid residue and m is 0-8, is converted to the acid chloride with PCl 5 /POCl 3  or SOCl 2 , and the chloride reacted with Me 2 N(CH 2 ) 3 NH 2  to form the corresponding poly-(dimethylaminopropylsulphonamide).
Patent GB-725438-A (GB)
Title: Improvements in gelatin dynamite explosive and method of making the same
IPC: C06B21/00
Filed: 1953-02-18
Abstract: A substituted oxazoline, for addition to gelatine dynamites, of general formula <FORM:0725438/IV (b)/1> where R1 is an alkyl or alkenyl group of 7-17 C atoms, R2 is hydrogen, methyl, ethyl, hydroxymethyl, hydroxyethyl, or R4-A-OH, where R4 is methylene or ethylene and A is 1-6 oxyethylene groups, R3 is hydroxymethyl, hydroxyethyl or R4-A-OH, and the total number of oxyethylene groups in the compound does not exceed 6, is prepared by condensing 1 mol. of a fatty acid having 8-18 C atoms and 1 mol. of an amino-hydroxy compound having the desired R2,R3 radicals, with elimination of water, at 150-240 DEG  C.  When R2 or R3 or both are R4-A-OH, the substituted oxazoline may also be prepared by reaction between the appropriate oxazoline and ethylene oxide at elevated temperature and pressure in the presence of an alkaline catalyst, e.g. alkali metal hydroxides, alcoholates, soaps and carbonates.  In compounds mentioned R1 is heptadecenyl, heptadecyl, hendecyl, heptyl, pentadecyl and octyl, R2 is hydrogen, methyl, ethyl, hydroxyethyl, hydroxy(triethoxy)ethyl, and hydroxy(diethoxy)methyl, and R3 is hydroxymethyl, hydroxyethyl, hydroxyethoxymethyl, hydroxy-(diethoxy)methyl, hydroxy(triethoxy)ethyl, or hydroxy(tetraethoxy)ethyl.
Patent GB-741148-A (GB)
Title: Improvements in or relating to electronic switching tubes
IPC: H01J31/06
Filed: 1953-02-18
Abstract: 741,148. Cathode-ray tubes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Feb. 18, 1953 [Feb. 21, 1952], No. 4542/53. Class 39 (1). A multi-channel switching tube comprises an elongated cathode for producing a ribbon beam which is deflected over and focused on a plurality of rod anodes extending parallel to one another and to the cathode, the anodes being connected to separate terminals. In one form, Fig. 1, the ribbon beam is generated by cathode 1, U-shaped control electrode 2 and focusing electrode 4. In the undeflected position the beam comes to a line focus at P, representing an image of the cathode 1 or slit 3. Deflecting plates 6, 61 move the beam over ten rod anodes 10 ... 19 arranged in a circular arc. The anodes are connected to separate terminals and enclosed in channels in cage 7 which minimizes interanode capacitances, collects primaries when the beam falls between two anodes, and collects any secondary emission from the anodes. The initial position of the beam may be fixed at any desired place, e.g. on a wall of cage 7, by a bias applied to one of the deflecting electrodes. The beam is stepped from one anode to the next by a positive or negative pulse applied to the deflecting plates and is locked in position on any anode by a suitable feed-back circuit. It can be made to return to its original position by pulsing 2 negatively to cut off or defocus the beam. The pulses to deflect the beam vary in amplitude in arithmetical progression, or if of equal amplitude are added by a suitable capacitor circuit before being applied to the deflecting plates. The tube is preferably used in decimalcomputing machines. The spacing between the anodes is such that the anode current is zero or less than 10 per cent of its maximum value when the beam lies between two anodes. Intensity modulation may be applied to electrode 2 or to another electrode (not shown). The device may also be used for (a) transmission of modulated carrier or other signal to any one of n channels connected to the respective anodes, (b) voltage selector, (c) pulse generator. There may be only 5 anodes.
Patent GB-412339-A (GB)
Title: Improvements relating to brush gear for dynamo electric machines
IPC: H01R39/38
Filed: 1933-02-14
Abstract: 412,339. Brush-holders for dynamoelectric machines. ORR, W., 327, Southey Green Road, Sheffield, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. Feb. 14, 1933, No. 4560. [Class 35.] In a brush-holder wherein a flat spiral spring presses on the top of the brush, a link which is pivoted substantially concentric with the spindle of the spring is provided and is attached to the spring adjacent the tip thereof. As shown, the limbs of the U -shaped link 15 which is pivoted on the spindle 8 extend on both sides of the spring 7 and are connected thereto by a pin 16 carried in a bush 17 on the spring. Pressure is exerted on the second brush 2 by a pair of narrower springs 5 arranged on the outer sides of the link 15 and connected together by a member 12. The invention is also applicable to holders for single brushes.
Patent GB-346092-A (GB)
Title: Improvements in or relating to explosive priming mixtures
IPC: C06B37/00
Filed: 1930-02-11
Abstract: 346,092. Explosives. JACKSON, L. MELLERSH-, 28, Southampton Buildings, London.-(Winchester Repeating Arms Co. ; New Haven, Connecticut, U.S.A.) Feb. 11, 1930, No. 4616. [Class 9 (ii).] Whiterite, a natural form of cystalline barium carbonate, is used as an abrasive and stabilizer in a mercury fulminate priming composition leaving no corrosive residue. The composition contains mercury fulminate 35 to 50 per cent, basic lead nitrate 23 to 33 per cent, lead sulphocyanate 5 to 15 per cent, antimony sulphide 5 to 20 per cent, and Whiterite 5 to 10 per cent. Specification 348,008 is referred to for the use of a basic nitrate of a heavy metal in fulminate priming mixtures.
Patent GB-578814-A (GB)
Title: Improvements in reinforced concrete construction in bridges, floors and the like
IPC: E01D2/02
Filed: 1944-03-13
Abstract: 578,814. Casting concrete bridges, floors &c. in situ. KONYI, K. HAJNAL-. March 13, 1944, No. 4645. [Classes 20 (ii) and 20 (iv)] Reinforced concrete structures, e.g., bridges, or floors, comprise one or more precast, pre-stressed units constituting at least part of the permanent shuttering for the casting in situ of the concrete to complete the structure, the precast, pre-stressed unit or units being capable of supporting the in situ part and incidental loads occurring during erection without being propped. The pre-cast, pre-stressed units are preferably of the shape in section of a flat bottom steel rail, but may be of inverted T, I, L or U-shape &c. A monolithic slab may be formed by juxtaposed pre-cast, pre-stressed units 1, Fig. 1, having holes 5 in the webs for the passage of transverse reinforcement 4, in situ concrete 2 then being cast between the units either flush with the tops thereof, or to a level above the tops of the units. Additional reinforcement 3 may be utilised for the in situ concrete. The in situ concrete need be cast only to a height sufficient to enclose the transverse reinforcement 4, shuttering then being applied to the tops of the units to cover the spaces between them, after which further concrete is cast above the units and shuttering. The pre-cast, pre-stressed units 1, Fig. 4, may be spaced to support hollow slabs 8 above which the in situ concrete 2 is cast, the transverse reinforcement 4 being located above the units. The pre-cast, pre-stressed units may be in the form of hollow beams, with or without projecting flanges and hollow slabs may be located to occupy part of the space between the units. A narrow structure, e.g., a footbridge may be composed of a trough-shaped pre-cast, prestressed unit 1, filled with concrete 2, cast in situ. Specifications 338,864, 338,934, [both in Class 20 (iv)], 541,835, and 554,693 are referred to.
Patent GB-749149-A (GB)
Title: Nail holder and a nail gun intended for same
IPC: B25C1/00
Filed: 1954-02-17
Abstract: 749,149. Nailing. HJELMQUIST, S. Feb. 17, 1954 [Feb. 17, 1953], No. 4674/54. Class 89 (3). In a pistol-like nailing device, nails 10 are supplied to a nozzle 18 from a magazine 40 in which they are supported on a cylindrical cardboard tube 11 being arranged in holes positioned along a helical line on the tube with their heads outwards. The tube is mounted for step-bystep rotation with a disc 42 and is fed upwards by the engagement of the nail heads with a helical groove 12 in the magazine wall or by the engagement of the nail tips with a similar groove in a central rod in the magazine. At each operation of the device by a trigger 13, an electric motor 24 is operated to move a pin 35 carried by a slide 34 to push a nail 10 from the tube 11 into a passage 22 in a disc 19, and to withdraw a piston 28 carrying a nail driver 30 against a spring 29 and then release it to drive a nail. At the same time a rack carried by the trigger 13 operates a shaft 14 through a toothed wheel so as to rotate the discs 19 and 42. The trigger is returned to its normal position by a cam driven by the motor 24. The cardboard tube 11 is cut into a strip which goes to waste by a cutter 36 on the slide 34. Continuous operation of the motor to give a succession of hammer strokes without the feeding of nails may be effected by a trigger 38 which holds the motor switch closed.
Patent GB-766761-A (GB)
Title: Process for calcining coke
IPC: C10B57/04
Filed: 1955-02-16
Abstract: 766,761. Coking. ESSO RESEARCH & ENGINEERING CO. Feb. 16, 1955 [March 22,1954; March 22, 1954], No. 4676/55. Class 55(1). A process for calcining petroleum coke comprises coking a heavy oil by contact with fluidized coke particles, which are heated by recycling a portion through a separate burning zone, passing some particles from this zone at high velocity through a conduit burning zone with combustible gas and oxygen-containing gas and calcining the thus heated particles at a still higher temperature of 2000-2700‹ F. for from 5 minutes to 8 hours. A bed of coke particles preheated to establish a temperature of 1000‹ F. is fluidized in a coking vessel 1 by steam &c., and oil is admitted through a pipe 2; product vapours pass off through a separator 6 and a stream of solid particles are transported through a line 8 by air &c. to a burner vessel 10 together with secondary air from a line 11. A gas such as carbon monoxide or a part of the coke is burnt to raise the temperature of the particles to 100-300‹ F. higher than that in vessel 1 to which a part is returned through a line 9. The net make coke removed through a line 17 is transported through a transfer line preheater 18 at e.g. 50 ft. per second by hot flue gases from a transfer line burner 22 to which the particles are then delivered. Here the coke is subjected to 2200‹ F. for 0.2 seconds whilst transported by a burning stream of carbon monoxide from a calciner 32 and air &c. admitted through an inlet 29. From a separator 25 the particles pass to the calciner operating at e.g. 2400‹ F. in which they are fluidized by air &c. either a portion being burnt to provide the increased temperature, or natural gas or fuel oil being added in lieu. The coke is retained in the vessel for e.g. 20 minutes to reduce the volatile content at 950‹ C. to 0.3 per cent or less. More than one calciner-soaker may be used for batchwise operation and a number of superposed beds may be provided. The preheating and burner units may comprise a single line. In a modification coke is heated in a transfer line burner to 2300-2600‹ F, and then fluidized in a calciner by inert gas such as nitrogen or carbon dioxide. Coke may be activated in the soaker and used to desulphurize or otherwise improve the quality of the naphtha, gas oil or light hydrocarbons from the coking vessel.
Patent GB-952731-A (GB)
Title: A toy water storage tank
IPC: A63H33/30
Filed: 1963-02-05
Abstract: 952,731. Toy domestic appliances. F. FUCHS, [trading as MARTIN FUCHS, METALLWARENFABRIK]. Feb. 5, 1963 [Feb. 10, 1962], No. 4745/63. Heading A6S. A toy water storage tank has an outlet pipe i the inner end of which is rotatable in a bush m to bring their respective openings o, n into coincidence so that water may flow through the pipe. The tank is formed in two parts a, c, part a being of transparent plastics material and part e opaque. A closable filling aperture is provided at b. Simulated taps may be provided.
Patent GB-417226-A (GB)
Title: Improvements in purification of phosphoric acid
IPC: C01B25/238
Filed: 1934-02-13
Abstract: Phosphoric acid, especially when having a concentration greater than 50 per cent, is purified from lead by adding an iodide or bromide and separating the thereby precipitated lead compound. The lead content of the acid may be initially reduced by the addition of sulphuric acid and the precipitated lead sulphate may either be left in or removed before the addition of the iodide or bromide.  The precipitation of the lead iodine or bromine compound is preferably effected in the presence of hydrogen sulphide, or the re-solution of the precipitated lead which tends to occur may be delayed by adding hydrogen sulphide to the phosphoric acid.  According to an example, phosphoric acid is treated with sulphuric acid, the precipitated lead sulphate being filtered, or not, as desired.  Hydrogen sulphide gas is then passed in until the arsenic and copper are precipitated.  An alkali iodide such as potassium iodide is then added and the acid is filtered.  Any excess iodine or bromine may be removed by bubbling air through the acid.
Patent GB-936661-A (GB)
Title: Adjustable boring bars
IPC: B23B27/00
Filed: 1960-02-10
Abstract: 936,661. Boring-bars. G. A. MUNRO. Feb. 10, 1960, No. 4784/60. Class 83 (3). A boring-bar 21 has a ring-shaped cutter 29 secured thereto, the cutting- edge 35 being adjustable radially of the bar by rotation of the cutter. The bar 21 has a truncated end 23, a conical recess 24 in the end to receive the cutter 29, a screwed bore 28 joined to a larger bore 27, the bores and recess being coaxial and perpendicular to the truncated end of the bar. The cutter is secured by a screw 42 and a retainer 36, the latter having a head 37 with a conical face 38 which engages a corresponding face on the cutter 29, and a cut-away portion 39, to clear the cutting edge 35 of the cutter 29. The recess 24 is eccentric relative to the truncated end 23 so that on rotation of the cutter, the cutting edge 35 moves radially relative to the boring bar. The cutting edge 35 is radial to the body of the cutter 29. The cutter may have a cutting edge at each end to allow cutting when the boring bar is rotated clockwise or counterclockwise.
Patent GB-264348-A (GB)
Title: Improvements in and relating to rotary pumps
IPC: F04D3/02
Filed: 1926-02-20
Abstract: 264,348. Mumford, Ltd., A. G. and Tait, E. B, Feb. 20, 1926. Worm pumps; balancing moving parts. - A pump. with a rotor 1 having a worm has its rotor end thrust balanced by means of a disc 3 formed or fixed on a rotor extension; the exposed area of the disc face adjacent the discharge end of the rotor is not less than the area of the exposed parts of the worm. The disc works in a recess 4 in the pump cover 5 and carries a series of vanes 9 which prevent fluid from passing through the clearance space to the back of the disc. A supply of fluid may be taken from the pump discharge 11 to the recess 4 by the pipe 10; this may be used to cool the rear bearing 12. The Provision Specification states that a pipe may connect the highest point in the inlet branch to any convenient part of the suction end of the pump chamber.
Patent GB-315892-A (GB)
Title: Improvements in the manufacture and production of monocarboxylic acids
IPC: C07C51/38
Filed: 1928-02-17
Abstract: 315,892. I. G. Farbenindustrie Akt.- Ges. Feb. 17, 1928. Addition to 262,101. Monocarboxylic acids.-In the process of the parent Specification for the catalytic decarboxylation of dicarboxylic acids or their anhydrides to produce monocarboxylic acids, the vapours of the crude starting materials are first passed over a purifying material capable of removing sulphur compounds in order to preserve the activity of the catalyst. Suitable materials are granulated pumice, earthenware sherds, silica gel, active carbon, marble, calamine, iron turnings, or preferably the exhausted catalytic agents of the decarboxylation process. The dicarboxylic acids or their anhydrides are advantageously brought into contact by counter-current with the purifying materials, the temperature being maintained sufficiently high to prevent condensation. Instead of removing sulphur from the acids or acid anhydrides, the desulphurization may be applied to the initial materials from which the said acids or acid anhydrides are obtained by catalytic oxidation, e.g. crude naphthalene or benzol. According to the examples, (1) phthalic acid and water vapour are passed over pumice grit to absorb contaminating sulphuric acid and then over a mixture of zinc oxide and aluminium oxide deposited on pumice to effect decarboxylation to benzoic acid; crude maleic acid may be similarly converted into acrylic acid; (2) the vapour of phthalic acid or its anhydride is passed with water vapour in an upward direction through a shaft furnace supplied at the top with a decarboxylating catalyst, such as zinc oxide deposited on pumice, fresh catalytic material being fed in continuously or periodically; the exhausted material reaching the bottom serves to purify the entering mixture; gases containing benzoic acid are continuously removed from the top. Specifications 272,557 and 291,326 are referred to.
Patent GB-266723-A (GB)
Title: Improvements in or relating to washing coal, ores and like substances
IPC: B03B5/68
Filed: 1927-02-22
Abstract: 266,723. Hoyois, L. Feb. 25, 1926, [Convention date]. Addition to 258,753. Inclined-trough wet-separating and washing apparatus; upward-current classifiers.-Relates to modifications of the coal &c. washing and wet separating processes and apparatus described in Specifications 258,753 and 265,202. The raw material to be washed &c. is carried down a trough A<1> by a stream of water, forming a washing-bed in the trough A<2> above the weir a, the stream passing over which is divided by a partition b. The denser particles are treated by an upward current in the column B, and the lighter particles are treated in a trough A<0>3 ; the lighter particles from the column B and the denser particles from the trough A<0>3 are reunited in the trough A<3>, and are treated as above, or as follows, once or oftener. to obtain a final residue. The trough A<3> contains a box C with regulable openings o<c>, o1<SP>c>, o2<SP>c>, o3<SP>c>, a water inlet, t, and a discharge nozzle D<c> with an adjustable opening o4<SP>c>, by means of which shale &c. and some coal is eliminated, the clean coal passing along the trough A<3> to the hopper Q. The shale &c: falls into the trough F, and is re-graded by a partition eF with adjustable openings o1<SP>e>, o2<SP>c>, which eliminate shale and some mixed products. This shale and mixed products pass over openings o1<SP>F>, o2<SP>F>, through which particles fall into the upward-current separator H, which consists of a box-like casing divided by partitions 1, 2 of successively-decreasing height. A water inlet t' is fitted on the first compartment, and between the first and second is an inclined perforated plate 3. The nozzle I has an adjustable opening o<H>, and discharges into the hopper P<1>. The trough F discharges into the hoppers P<2>. In a modification, the trough A3<SP>0> is duplicated, the two being arranged in series; and in another modification, the trough A<3> is omitted.