baber/WOPTO huggingface dataset:
Patent GB-744082-A (GB)
Title: Improvements in or relating to a process for the utilization of acetylene and ethylene mixtures
IPC: C07C7/00
Filed: 1953-06-10
Abstract: A mixture of acetylene and ethylene is passed through an absorption zone containing finely-divided potassium hydroxide suspended in an inert non-aqueous organic liquid at 70-100 DEG  C. to absorb acetylene and give a residual gas enriched in ethylene, the absorbent suspension being treated to recover acetylene or reacted with an alcohol, aldehyde or ketone and the acetylenic product recovered. The initial mixture may be produced by cracking paraffins, preferably an ethane fraction, at 1100-1600 DEG  C., suitably to yield acetylene and ethylene in equimolar proportions.  The suspension may contain sodium and potassium hydroxides, eutectic mixtures being suitable. It may be prepared mechanically or by melting the hydroxide in an inert organic liquid and cooling while stirring.  Suitable liquids are glycol ethers, acetals, and hydrocarbons, e.g. 1,2-dibutoxyethane, acetaldehyde dibutylacetal, butyraldehyde diethylacetal, xylene, and trichlorbenzenes.  Absorption may be effected at atmospheric or higher pressure.  Acetylene is desorbed by heating the suspension to 110-150 DEG  C.  Alternatively, an aldehyde or ketone may be added, for example formaldehyde, to give propargyl alcohol and 1,4-butynediol, acetone to give 2-methyl-3-butyn-2-ol, and acetaldehyde to yield 3-butyn-2-ol, or an alcohol, for example n-butanol, to give vinyl n-butyl ether as in Specification 744,079. The suspension may be continuously or intermittently withdrawn, heated to regenerate acetylene, cooled, and returned or fresh suspension added at one point and enriched suspension taken off at another for reacting the acetylene.  The ethylene-enriched residual gas may be reacted with a selective ethylene-consuming reagent. Thus, chlorhydrin may be produced with chlorine and water as in Specification 744,076, ethylene dichloride by liquid phase chlorination as in Specification 744,080, ethyl chloride by reaction with hydrogen chloride as in Specification 744,078, or styrene by reaction with benzene and dehydrogenation of the ethylbenzene obtained.  Reaction may be controlled to give a tail gas containing acetylene and ethylene in the same proportions as the feed which gas is recycled as in Specification 744,079.  Examples use a suspension of potassium hydroxide in xylene, aniline and sodium being present as conditioning agents.
Patent GB-404611-A (GB)
Title: Improvements in and relating to electric control and relay systems
IPC: H01C7/10
Filed: 1932-06-06
Abstract: 404,611. Variable resistances ; resistance materials. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitats-Ges. ; 2, Friedrich Karl- Ufer, Berlin.) June 6, 1932, No. 15993. Convention date, June 3, 1931. [Class 37.] An electric resistance block R of material which varies its resistance substantially instantaneously with variations in applied voltage, e.g., silican carbide, graphite, cobalt oxide or copper oxide, is included in a circuit a and in another circuit b the electrodes of the two circuits on the block being arranged so that the shortest line in the body between the electrodes of one circuit is substantially at right angles to a similar line between the electrodes of the other circuit. Variations in .the value of the resistance R due to current variations in the circuit a produce corresponding variations in the resistance R in the other circuit b.
Patent GB-705857-A (GB)
Title: Improvements in or relating to side plates for cooker ovens
IPC: F24C15/16
Filed: 1951-07-06
Abstract: 705,857. Ovens. MAIN, Ltd., R. & A., and WORTLEY, G. W. June 9, 1952 [July 6, 1951], No. 16127/51. Class 126 A side plate for a cooker oven has supporting rails for oven shelves formed integrally with the shelf and a projection formed above and near the forward part of each rail so as to prevent tilting of the shelf when it is withdrawn. The side plate 10 has rails 11, 12, 13, 14 cast integrally with it so that their upper and under surfaces merge smoothly with the side plate 10 to facilitate cleaning. The shelf supporting rails 12, 13, 14 have downward deflections 16 at their forward ends, and a projection 17 is formed on the side plate above the deflection in the upper rail 12. The rail 11, which supports a grill pan near the top of the oven, is interrupted, near its forward end, and a rail 20, which supports a top plate for the oven when the grill is not in use, has projection 19 formed on its underside above the interruption in the rail 11.
Patent GB-728636-A (GB)
Title: Process for producing steel bar provided with transverse ribs for concrete reinforcement
IPC: B21B1/16
Filed: 1953-06-12
Abstract: 728,636. Making concrete reinforcing bars. WESTFALENHœTTE AKT.-GES. June 12, 1953 [June 14, 1952], No. 16305/53. Classes 83 (2) and 83 (4). Altering molecular structure.- Concrete reinforcing bars 1 of soft steel are cold-rolled with transverse ribs 2 while the cross-sectional area is reduced by at least 20 per cent. The bars are then tempered at about 400‹ C. to raise the yield point. The steel may be Thomas steel with a maximum carbon content of 0.5 per cent and may con. tain boron, copper or beryllium, &c. to improve the precipitation hardening.
Patent GB-181394-A (GB)
Title: Improved manufacture of artificial threads and textiles
IPC: D01F2/28
Filed: 1922-06-12
Abstract: Artificial silk, hair, &c. are prepared by spinning solutions of alkyl ethers of cellulose, or of a conversion product of cellulose, which are insoluble in water at 16 DEG  C. but which swell or dissolve in water at lower temperatures, particularly below 10 DEG C.; the products, particularly in the water-swollen condition, dye readily with substantive, acid, vat, sulphur, mordant and basic dyestuffs.  In the preparation of the spinning solution the ether may be dissolved in an organic solvent, of which a wide range are specified, and in the solution may be dissolved other cellulose derivatives such as acetylcellulose, formylcellulose and nitrocellulose and other colloids, and softening- and plastifying-agents soluble in the solvent selected; alternatively, if an ether soluble in cold water is employed, then cold water may be used as the solvent.  The filaments projected from the spinning-nozzles may be immediately dried, or may be conducted through precipitating-baths in which the ethers are insoluble; generally, water is the most convenient precipitating-bath, the temperature of the bath being maintained above the point at which the ether dissolves or swells to an undesirable extent.  The threads may be dried in the wound state or before winding, or partly during their passage from the precipitating-bath and partly on the winding roller. To render the threads or filaments more resistant to water, they may be treated with tanning-agents, such treatment being applied either while the threads are in the finished condition, or at an intermediate stage of manufacture, for instance, the tanning-agent may be incorporated in the precipitating-bath, or may be applied as a solution to the wet threads on the winding appliance or after the dyed or undyed threads have been swollen in water and then treated with the dyestuff in the ordinary manner.  The Specification includes a number of examples, in which are used ethyl and methyl celluloses of slightly varying properties as regards solubility &c. in water, and mixtures of these ethers and acetyl-cellulose, and nitro-cellulose; the threads obtained from these mixed solutions, unlike those obtained from simple solutions of acetyl- and nitro-cellulose, have the property of readily taking dyestuffs. Specifications 181,391, [Class 15 (ii), Dyeing, Processes &c. for], 181,392, 181,393, and 181,395 are referred to.  The Specification as open to inspection under Sect. 91 (3) (a) referred to the addition to the aqueous spinning solutions of cellulose derivatives such as viscose, cuprammonium cellulose, cellulose hydrate, and hydro- and oxy-cellulose, and of other water-soluble colloids, and softening, agents; and also to the addition to the precipitating bath of salts, acids, alkalies, sugars, glycols and glycerine; and also to the employment of precipitating baths of petrol, ligroin, and petroleum ether; and also to the maintenance of the thread in a stretched condition, during spinning and precipitation.  This subject-matter does not appear in the Specification as accepted.
Patent GB-476601-A (GB)
Title: Improved guide tube for supporting the stock bar in turning lathes and like machine tools
IPC: B23B13/08
Filed: 1936-06-12
Abstract: 476,601. Turning. STANDARD TELEPHONES & CABLES, Ltd., KING, V., and COLE, F. C. June 12, 1936, No. 16503. [Class 83 (iii)] A guide tube for supporting stock bar in lathes and like machines comprises a metal casing with a wooden lining. The casing may have an opening 4 for a stock feed member and the wooden lining which may be of Michigan Hard Rock Maple impregnated with hot tallow, is made in two long sections 2 keyed together at 3, or may be made in shorter sections with felt or like insertions between the sections for the purpose of lubricating the stock bar.
Patent GB-120609-A (GB)
Title: Improvements in Oil Fuel Injection Devices for Internal Combustion Engines.
Inventor: CROSSLEY KENNETH IRWIN
IPC: F02M43/04
Filed: 1917-11-10
Abstract: 120,609. Crossley, Sir K. I., and Webb, W. Le P. Nov. 10, 1917. Cylinders recciving liquid fuel.-Nozzles from which issue in succession a light igniting fuel and a heavy fuel without spraying air are provided with a small cavity S around the valve B near its seating for the reception of the igniting fuel which on entering displaces the column of heavy fuel extending into the cavity when the valve is closed. The fuel passages are made by drilling the valve casing or grooving the valve spindle, its guide, or casing. The nozzle D is secured to the casing A by a screwed cap G. The valve may be opened by fluid pressure or mechanically and its end may be extended as shown at Y, Fig. 10, into the cavity of the nozzle beyond the seating.
Patent GB-1091825-A (GB)
Title: An article-sorting machine
IPC: B07C3/00
Filed: 1966-04-15
Abstract: 1,091,825. Sorting postal mail; conveyers. INTERNATIONAL STANDARD ELECTRIC CORPORATION. April 15, 1966 [April 20, 1965], No. 16527/66. Heading B8A. A postal mail sorting machine comprises destination keying positions TM 1 , TM 2  adjacent a conveyer consisting of endless chains 22 carrying 150 letter holders (not shown), each having two compartments. Each compartment has means for releasing letters over a predetermined one of a series of 140 destination bins 18-32 over which the conveyer passes. Synchronously running with the conveyer is an auxiliary conveyer (Fig. 2, not shown), endless chains (34) of which carry 160 carrier bars (47) (Fig. 3, not shown). Each bar (47) carries eleven laterally spaced pairs of plates (70), (70), (Figs. 5, 6 and 7, not shown) between each pair of which is mounted an assemblage of four rotatable permanent magnets (88)-(91). Each magnet is rotatably mounted on a nylon body (97), rotation being limited by a stop member (80) or (81). A further plate 70 at one end of the bar 47 provides a mounting for a pair of non-rotatably mounted permanent magnets (99), (100). A series of setting electromagnets (122), (130), (Fig. 8, not shown) are mounted in eleven rows above the eleven rows of permanent magnets (88)-(91). A similar series of electromagnets (123), (131) are mounted below permanent magnets. A code dealt with by an operator at the keying position TM 1  or TM 2  is translated into signals which eventually energize a combination of three pairs out of the eleven pairs of solenoids at a position corresponding to the destination bin to which the respective code applies. The precise moment at which the solenods are energized is controlled by series connected change-over contacts (124), (125) (and 132, 133 in respect of TM 2 ), the setting in series of which is controlled magnetically by the passage above them of the non- rotatably mounted magnets (99), (100). In this way each proceeding bar 47 with its eleven transversely spaced sets of magnets (88)-(91) has a selected three of the latter set 180 degrees out of phase from normal inoperative position. When this bar arrives level with a destination bin corresponding to the code from which the magnets were set, the magnets operate means (not shown) to release the letters from the main conveyer. Since each letter holder of the conveyer has two compartments the leading/ trailing relation of which is reversed at each of the four reversal points of the chains 22 and since there are only two reversals of direction of the auxiliary conveyer chains (34), means are provided at (43), (44) to rotate each bar 47 through 180 degrees. This is achieved by the action of a cam track (53), (54) (Figs. 3, 4, not shown) which guide rollers (50), (51) carried by a crank-arm (48) mounted on an extension of the bar 47. A follower (59) spring loaded by a bell-crank (61), (62), causes the arm 48 to be forced from a trailing to a leading disposition relative to the bar 47 as the rollers (50), (51) reach the lowest point in the cam track (53), (54).
Patent GB-250066-A (GB)
Title: Improvements in or relating to guiding and feeding mechanism for grinding, milling, boring machines and the like
IPC: B24B3/04
Filed: 1925-06-27
Abstract: 250,066. Weber, C. O. June 27, 1925. Indexing; copying and reproducing mechanism; milling helical surfaces; gear-cutting.-In apparatus for guiding and feeding the work pieces in grinding, milling, boring, and like machines for making twist drills or milling cutters, and applicable also to similar work, such as toothed wheels and the like, the operation is controlled by a model of form similar to that of the work-piece, and a circular feed is imparted to the guide for the model at each rotation of the work piece, corresponding movement being also imparted to the device controlling the indexing of the work. The base-plate 1 carries an adjustable crank-disc 6 driven by worm gearing from a pulley 4 and is arranged to reciprocate a rotatable shaft 12 mounted in bearings in the base-plate and carrying a work-piece 13 such as a milling-cutter and a pattern 14. The shaft 12 also carries a frictionally-mounted lever 15 whose lower end engages a groove in a plate 16 pivoted at 16<1> to the base plate. During the movement of the work spindle to the right in Fig. 1, the head of the lever 15 moves in the inclined groove 25 but on reversal of the movement, the lever head moves round a pivoted dog 26 and thus imparts the indexing movement to the blank. A threaded guide pin 18 mounted in a pillar 18<1> engages the grooves in the model to give the required rotary movement to the work during the cutting operation. The plate 16 is adjustable about its pivot either by a band crank 27<1> or automatically by a ratchet wheel 24 actuated from a pawl 23. A cam 17 is mounted on the shaft 12 and at each revolution of the work this cam coacts with a stop 22 and acts through lever mechanism to rotate the ratchet wheel 19 and feed the guide pin 18 to give a predetermined circular feed to the work. At the same time the ratchet wheel 24 is also actuated to give corresponding movement to the guide plate 16. For milling toothed wheels the blanks are mounted coaxially on the spindle 12 and the stop 22 is turned to an inoperative position. Straight or spiral teeth may then be cut, the blanks being indexed at each reciprocation of the shaft 12 by means of the plate 16. For drilling articles with circularly-spaced holes such as the cutters of mincing-machines. the blanks are mounted coaxially on the spindle 12 and the model engaging the guide 18 has parallel grooves, the workpieces being fed forward to the drill spindle and being indexed between successive working strokes.
Patent GB-952735-A (GB)
Title: Improvements in or relating to the drying of grain
Inventor: COWPE JAMES
IPC: F26B17/00
Filed: 1959-05-14
Abstract: 952,735. Drying systems. ALLMET (LEEDS) Ltd. July 26, 1960 [May 14, 1959], No. 16575/59. Heading F4G. Grain or like granular material is dried in a chamber 1, Fig. 1, by being traversed along a plurality of superposed perforated upper surfaces 2 of air chambers 3, 4, the grain or like falling by gravity in a curtain 10 from each surface to the next lower surface, hot air being supplied to the chambers 3 through openings 16a controlled by slides 17, and cold air being supplied to the chamber 4 through inlets 11. The grain is fed on to the highest surface 2 through a shoot 5 and is controlled by a feedplate 6 whereafter the grain is traversed along each surface by chain conveyers 9 to be finally delivered to a shoot 7 for discharge by an augur 8. The heated air is heated in a chamber by a fuel burner which is automatically controlled to set the temperature of the apparatus. A motor for driving the air compressor supplying the heating chamber also drives the discharge augur. Both the heated air and cold air are discharged by fans 12, 13, the air passing through the curtains 10 of grain. If desired, the air may be recirculated to the apparatus. Instead of the grain being traversed over stationary surfaces it may be carried on endless band perforated conveyers. In a modification in which only two levels are provided, the lower air chamber is divided into halves one of which is supplied with cold air and the other with hot air, the latter being nearest the falling curtain of grain.
Patent GB-278093-A (GB)
Title: Improved treatment of lead chloride or basic chloride and application thereof to thewinning of lead from ores, residues and the like
IPC: C01G21/14
Filed: 1926-07-02
Abstract: 278,093. Smith, S. C., and Chemical & Metallurgical Corporation, Ltd. July 2, 1926. Lead carbonate.-In the production of lead carbonate by passing carbon dioxide into a suspension of lead chloride in a solution of ammonia, the carbon dioxide is passed into the suspension at such a rate that it passes into the form of lead carbonate as nearly as possible pari passu with its introduction into the suspension, and the presence of carbon dioxide in the solution is avoided as far as possible. Bv this means the lead carbonate obtained is substantially free of lead chloride. The lead chloride used in the process may be that obtained by known methods from ores, concentrates residues, &c. Specification 237,308 is referred to.
Patent GB-1430951-A (GB)
Title: Chromatography
IPC: G01N30/52
Filed: 1973-04-06
Abstract: 1430951 Chromatographic adsorbent E I DU PONT DE NEMOURS & CO 6 April 1973 [7 April 1972] 16705/73 Heading B1H Apparatus for effecting chromatographic separations comprises a separation zone and an inlet and outlet whereby a mixture to be separated can in use be passed through the separation zone, the said separation zone containing a plurality of substantially uniform sized porous microspheres having an average diameter by number of from 0.5 to 500 miorons and consisting essentially of a plurality of substantially uniform-sized colloidal refractory oxide particles or substantially uniform-sized colloidal particles having a refractory oxide surface arranged in an interconnected three dimensional lattice, the colloidal particles occupying less than 50% of the volume of the microspheres and the remaining volume consisting of interconnected pores having a substantially uniform pore size distribution. In examples, a colloidal silica sol is mixed with a copolymerisable mixture of formaldehyde and urea or melamine; polymerisation and coacervation take place to give microspheres of silica bound with resin; the resin is burnt off and the silica microspheres sintered. Alumina, zirconia, titania or tin, antimony or ferric oxide may replace the silica. The microspheres may be used as such for solid/liquid chromatography or coated with a liquid for liquid/liquid chromatography. They may be used to separate hydroxylated aromatic compounds or fractions of polystyrene.
Patent GB-1177854-A (GB)
Title: Improvements in and relating to an Apparatus and a Method for Producing Boron-Coated Filaments
IPC: C23C16/54
Filed: 1967-04-13
Abstract: 1,177,854. Boron-coated filaments. UNITED AIRCRAFT CORP. April 13, 1967 [May 6, 1966], No. 16944/67. Heading C7F. Deposition of boron on a metallic filament, suitably of tungsten titanium or zirconium, is carried out by thermal decomposition of a boron halide in a reducing atmosphere within a vertical reactor 1 with liquid seals at its ends and with an inter for reactive gases through the upper seal. Filament substrate 19 is passed continuously through the chamber and is electrically heated, contact being maintained through the sealing liquid, which is an electrically conductive liquid of high surface tension, such as mercury. Boron trichloride and hydrogen are introduced through inlet tube 4 and byproduct and excess reactant gases are removed through exit tube 5. The filament 19 enters and leaves the reactor through apertures so sized as to present passage of mercury with the filament.
Patent GB-844112-A (GB)
Title: Improvements in toolholder devices for shaping machines
IPC: B23D13/00
Filed: 1958-05-28
Abstract: 844,112. Planing. DYVAS, J. Nov. 17, 1958 [May 28, 1958], No. 16954/58. Class 83 (3). In a clapper-box 4 for a shaping-machine, the tool 8 is secured in a block 1 by a screw 9 and is inclined downwardly to the horizontal. The block 1 is pivoted at 2 and is located by a spring-urged plunger 10 adjusted by a screw 13.
Patent GB-568462-A (GB)
Title: Improved bouquet foundation holder
IPC: A01G5/04
Filed: 1943-10-15
Abstract: 568,462. Bouquet holders. McKAY, J. A. Oct. 15, 1943, No. 16987. [Class 128] A bouquet foundation holder comprises a hollow conical part b, inclined to the stem a and provided around the mouth with lugs c, preferably undercut at d, to hold wire or the like for retaining moss or the like therein.
Patent GB-236567-A (GB)
Title: Improvements in machines for washing plates, dishes and the like
IPC: A47L15/10
Filed: 1925-07-02
Abstract: 236,567. Dutilh, H. July 3, 1924, [Convention date]. Plates, dishes, and the like, washing.-Apparatus in which compressed air is admitted to the washing-tank to cause agitation of the washing- fluid comprises a cage 5 having a bottom 8 and a number of shelves 9 for holding the plates 4 &c. The cage is secured to the underside of the cover 6 of the tank 1, so that when the cover is closed, the cage is immersed in the washing-fluid 2. Compressed air is admitted by a pipe 12. In a modification, Fig. 5, two cages, affixed to opposite sides of a rotatable drum 18, are used so that whilst one batch of crockery is being washed another can be placed within or removed from the upper cage. A number of such machines may be operated simultaneously.
Patent GB-171268-A (GB)
Abstract: 171,268. Weddell, E. G. Sept. 24, 1920. Upward-current classifiers.-In a classifier of the kind in which coal or other material is fed through a hopper f into a vessel a through which water flows upwards and carries the lighter material to an outlet g while the heavier material is discharged at the bottom j, a series of coaxial columns c, b, and chambers h<1>, e, d are provided, the columns and chambers of each series being of successively smaller diameter. The columns c, bare preferably vertically adjustable as described in Specification 171,266. Water is admitted through inlets m, l, k or through inlets m, k only.
Patent GB-1277262-A (GB)
Title: Polymer blends
Inventor: GERMAN REGINALD JAMES
IPC: C08L21/00
Filed: 1969-04-02
Abstract: 1277262 Polymer blends DUNLOP HOLDINGS Ltd 26 March 1970 [2 April 1969] 17132/69 Headings C3P and C3Q A composition comprises an ethylenically unsaturated rubber and a terpolymer of ethylene, an α-mono-olefin, and a cyclohexeno norbornene. The examples describe a blend of natural rubber or SBR and a copolymer of ethylene, propylene and 2-methyl-5,8-endomethylene hexahydronaphthalene-2,6. The compositions may contain fillers, softeners, &c. and are vulcanized.