baber/WOPTO huggingface dataset:
Patent GB-202155-A (GB)
Title: Improvements in grinding, mixing and incorporating mills
IPC: B02C7/06
Filed: 1922-07-27
Abstract: 202,155. Fleming, J. M., and Barnes, W. H. July 27, 1922. Disc and like mills.-Relates to grinding, mixing, or incorporating mills for treating liquids or semi-liquid substances such as paints, colours, enamels, varnishes, dyes, printing-inks, pottery slip, chocolate, emulsions, and other pastes. The mill comprises an enclosed stationary grinding-chamber A, Figs. 1 and 3, with a fixed vertical grinding ring or disc B fitted therein, a feed hopper or pipe C feeding into a central eye b in the disc B, a rotary vertical grinding ring or disc D mounted on the end of an horizontal shaft G extending out of the other side of the casing, and a discharge so placed that the contents of the chamber A are maintained at a high level during grinding to dissipate and dispense the heat generated, with a relief or circulating or discharge column or pipe H placed in or at the top of the chamber A. The rings or discs B, D are formed with two or more distinct grinding-areas d, d<1>, Fig. 6, divided by a plain or uncut ring b<2>, and a similar ring b<1> at the peripheral edge. The chamber A is provided with a discharge aperture or valve a preferably about on a level with the feed-inlet c, and with a second discharge aperture and valve a<1> in the bottom, through either of which the ground material may be discharged at a continuous and constant speed. A pipe is fitted to etiher or both ducts a, a<1> to maintain the material at any desired level within the chamber A, and the pressurerelief column or pipe H, at the top of the chamber may be turned over the hopper C to form a circulation pipe. The pressure of the disc D against the disc B is regulated by a worm K engaging a worm-wheel M at the end of the driving- shaft G. A fine-pitch screw on the boss m of the wheel M screws into a fixed bearing N, and the end of the shaft G, or a shoulder thereon, bears against an anti-friction thrust bearing on the face of the wheel M.
Patent GB-782143-A (GB)
Title: Process for bonding thermoplastic layers to metallic workpieces
IPC: B32B15/08
Filed: 1955-07-15
Abstract: 782,143. Bonding thermoplastics to metal bv induction heating. LECHLER. P., and LECHLER. K., [trading as LECHLER. P. [Firm of]]. July 15, 1955 [July 16, 1954], No. 20565/55. Class 39(3) A process for bonding a thermoplastic layer to a metallic workpiece comprises subjecting both the workpiece and the layer to which electrically conductive material has been added to the action of a high frequency alternating magnetic field, the heat generated thereby in the workpiece and the added conductive material serving to fuse the thermoplastic material at least in the portion of the layer immediately adjajcent the workpiece so as to form an intimate bond therewith on cooling. Irregularities in heating occurring as a result of variation of shape and thickness of the workpiece may be compensated for by varying the density of distribution of the added conductive material in the thermoplastic layer, e.g. where the layer would otherwise be insufficiently heated a greater concentration of added material is provided. If the portion of the layer not immediately adjacent the workpiece has no electrically conductive material in it or has a smaller concentration of such material. heating of the outer surface of the layer is reduced and the layer is less liable to run. With a high concentration of conductive material in the layer, heating in takes place mainly in the thermoplastic layer. In the application of the process to making joints in building construction, e.g. between concrete constructional units, grouting material containing conductive material may be re-melted to improve the joint after the grouting material'has been poured and formed. The workpiece is in the form of a sheet metal member and is preferably of V or similar shape to prevent the heated grouting material from flowing out of the joint. The thermoplastic layer may be bitumen, pitch, tar or synthetic resin to which are added metal shavings or filings or iron oxides or graphite. Alternatively, metal foil or mesh may be used as the conductive material. The thermoplastic material may be granular or pulverulent material.
Patent GB-586514-A (GB)
Title: Improvements in or relating to braking device
IPC: A01C3/06
Filed: 1943-12-09
Abstract: 586,514. Brakes. GLOVER, WEBB & LIVERSIDGE, Ltd., and EVANS, L. W. Dec. 9, 1943, No. 20616. [Class 103 (i)] Fluid-pressure brakes on a trailer vehicle are operated by a master cylinder formed in the king-pin joining the tractor and trailer vehicles, and the king-pin is provided also with means for making up leakage losses. The plate 3a and king-pin 3 are arranged, in known manner, to ride up a slotted coupling-plate 2 on the tractor and to be locked thereon. When in this position, a roller 19 on the lower end of a master-cylinder piston 4 engages a cam face 20 on a triangular member 22 which is pivoted at 22a and has a face 24 in contact with a roller 25 on a piston 26 subjected to the fluid pressure in the tractor brake system. When the piston 26, therefore, is moved out by actuation of the tractor brakes. the piston 4 is correspondingly raised and transmits pressure to the trailer brakes through the port 12 and pipe connection 8. The loss and make-up means comprise a reservoir 9a communicating with the mastercylinder through a port 9, controlled by a valve 14. The valve 14 closes when the pressure builds up in the master-cylinder and opens when the piston 4 is in its lowest position. In a modification, the member 22 is omitted, the pistons 26, 4 being axially coupled.
Patent GB-374313-A (GB)
Title: Improvements in or relating to ventilating means for poultry houses, loose boxes, buildings, horse boxes and other vehicles and structures
IPC: A01K31/00
Filed: 1931-07-18
Abstract: 374,313. Roof ventilators. EN-TOUTCAS CO. (SYSTON), Ltd. and BROWN, C. A., Syston, near Leicester. July 18, 1931, No. 20618. [Class 137.] A roof ventilator comprises a trough or equivalent member disposed beneath an outlet opening in such a position as to permit the outward passage of. air whilst intercepting any snow or moisture which may enter through the opening. The ventilator comprises a chamber 1 fitted on the roof 2 above a roof opening 3 and has a flat top provided with a longitudinal opening 5. A horizontal trough 6 of semicircular or other section is mounted within the chamber beneath the opening 5 in such a position as to intercept drift passing through the opening at the greatest possible angle. Moisture collecting in the trough is discharged through an aperture 7 in the end wall of the chamber. Grooves 9 are formed along the underside of the chamber roof at the sides of the opening 5 to prevent the creeping of moisture. Reference has been directed by the Comptroller to Specifications 16105/86, [Class 137, Ventilation], 3890/87, 5380/93, [both in Class 25, Chimneys, &c.], 25680/98 and 3077/99, [both in Class 137, Ventilation].
Patent GB-423042-A (GB)
Title: Improvements in and relating to motion picture cameras
IPC: G03B19/18
Filed: 1933-07-24
Abstract: 423,042. Kinematograph cameras. RUSTING, H., and RUSTING, N., 21, Haanplein, The Hague. July 24, 1933, No. 20804. Convention date, July 22, 1932. [Class 97 (i)] In cameras having a direct-vision finder and a shutter rotating in a plane substantially at 45‹ to the axis of the objective, the shutter being provided with means to reflect light from the objective into the finder during film shifts, and also with means to prevent light from penetrating from the finder to the film during exposures, the passage of light from the finder is prevented by a portion of the shutter itself. As shown, the shutter 3 has an opening 5, and also a reflecting surface 19 which, during film shifts, cuts off from the film 2 the light passing from the objective 1, and deflects it to a ground glass or other screen 6 which is viewed by a telescope system 8, 9 and a mirror 7. The centre of rotation of the shutter is on the same side of the axis of the objective as the finder, and the shutter extends across the finder tube 14; the axis of the objective and the axis of the finder tube intersect the shutter at diametrically opposite points, and the shutter itself alternately permits the screen 6 to be viewed through the tube 14 and prevents passage of light from the tube 14 to the film. The shutter has dead black sectors 18, 20 between the reflector 19 and opening 5, each sector being large enough to cut off completely the images in the viewfinder and on the film. The telescope system 8, 9 may be omitted. The construction permits the use of objectives of short focal length and large aperture, and of a turret for carrying them.
Patent GB-792568-A (GB)
Title: Improvements in or relating to rolling mill stands
IPC: B21B13/00
Filed: 1955-07-19
Abstract: 792,568. Rolling. SOC. DES ACIERS FINS DE L'EST. July 19, 1955 [July 20, 1954], No. 20929/55. Class 83 (4). In a rolling mill for wire &c. frusto conical rolls 11, 12 are directly driven from individual motors 1, 2 through converging shafts 9, 10. The motors are connected to the shafts through swivel joints 6, 8 and are arranged on a high part of the stand clear of any coolant jets. Successive stands may be arranged close together with the motors of consecutive stands on opposite sides. The interval between successive stages is preferably less than one-fifth of a second so that the molecular cohesion of the metal is low and the power consumption thereby reduced.
Patent GB-674758-A (GB)
Title: Improvements in or relating to electron discharge devices
Inventor: BECK ARNOLD HUGH WILLIAM
IPC: H01J3/02
Filed: 1949-08-12
Abstract: 674,758. Electron beam apparatus. STANDARD TELEPHONES & CABLES, Ltd. Aug. 12, 1949, No. 21015/49. Class 39 (i). An arrangement for focusing a space charge limited electron beam 17 in a tunnel 9 in which the divergence of the beam is counteracted by an axial magnetic field, has electrostatic focusing of the beam so that it converges from the cathode 15 and is substantially parallel to the axis of the tunnel at the entrance 12 thereof and is substantially free from magnetic influence up to that point. The tunnel 9 is positioned between two pole-pieces 10, 11, the former being hollow and containing the cathode 15 and a focusing electrode 16, its inner surface acting as anode and forming an entrance tunnel of diameter d<SP>1</SP> and throat diameter d. Design of the electron gun gives the appropriate shape of beam, which is also obtainable by special guns having shaded pole-pieces. The diameter of tunnel 9 is larger than the entrance aperture d. The gun is shown applied to a two resonator klystron with drift tube 19 and resonant cavities 20, 21 each comprising a pair of discs, one 22 of nickel iron with a coefficient of expansion the same as glass and the other 23 of copper, the discs being clumped together by annular collars 24, 25. Tuning is by adjustable screws 26. Tubular extensions 30, 31 'are aligned with drift tube 19 to give interaction gaps 32, 33. Hollow pole-pieces 34, 35 house the electron gun and collector electrode respectively and are joined as a magnetic circuit by a permanent magnet 43 and yoke arms 44. The pole 34 is thick enough to screen the gun from the magnetic field. The focusing arrangement is similarly applied to a travelling wave tube, Fig. 4 (not shown), the helix being supported on quartz rods and fitted with probes and enclosed at each end by wave-guides. The magnetic circuit is completed as in Fig. 3. Beams of non-circular cross-section, e.g. rectangular, may be employed.
Patent GB-359450-A (GB)
Title: Process for working up crude phosphate and potassium salts to mixed fertiliser
IPC: C05B11/06
Filed: 1930-07-11
Abstract: In the production of fertilizers by treating calcium phosphate with nitric acid and potassium sulphate, the calcium sulphate separated is reacted with ammoniacal ammonium chloride to produce ammonium sulphate which is then reacted with potassium chloride or crude sylvinite in presence of ammonia to obtain the potassium sulphate required in the process.  When potassium chloride is used, the mother liquor after separation of potassium sulphate, is cooled to separate ammonium chloride, then carbon dioxide is led in and calcium sulphate is stirred in.  When crude sylvinite is used, the precipitated potassium sulphate is freed from its associated potassium chloride by washing with water, and the ammonium chloride mother liquor cooled to separate some ammonium chloride and then subjected to the Solvay process, sodium bicarbonate being precipitated and removed; the mother liquor, which contains ammonium chloride and carbonate, is stirred with calcium sulphate to obtain ammonium sulphate as described above. The mixture obtained from the calcium phosphate treatment, after separating the calcium sulphate, contains free phosphoric acid and potassium nitrate; it may be converted into a fertilizer by neutralizing with ammonia.  It is stated that the process may be carried out with a larger amount of sulphuric acid in circulation than is equivalent to the potassium, so that a precipitate of potassium sulphate alone or of potassium and sodium sulphates may be obtained instead of the potassium sulphate and chloride; and that the potassium content of the final product may be diminished in relation to the nitrogen in a desired ratio by adjusting the ratio between potassium and sodium in the initial potassium material.  Specification 282,330 as open to inspection under Sect. 91(3)(a) is referred to.
Patent GB-151249-A (GB)
Title: Improvements relating to travelling ladders
IPC: E06C5/20
Filed: 1920-07-12
Abstract: 151,249. Magirus Akt.-Ges., C. D. Aug. 2, 1915, [Convention date]. Void [Published under Sect. 91 of the Act]. Portable wheeled ladder escapes.-In portable fire-escape and like ladders of the type in which the pivotal axis 4, Fig. 2, of the ladder 2 in the inoperative position is located above and to the rear of the centre of the ladder, the ladder is pivoted in its supporting-frame 1 in such a way that it moves in the longitudinal direction of the carriage as the inclination varies, so as to ensure stability at all angles. As shown in Fig. 3, pivot pins 4 on the frame 1 slide in inclined slots 6 in brackets 5 secured to the ladder sides, the ladder being also connected to the frame by pivoted suspension links 8. In the form shown in Fig. 5, the pivot pins 5 are mounted on the ladder 2 and have rollers engaging slotted brackets 10 on the frame 1; toothed sectors 13 integral with the pins 4 roll on racks 11 on the brackets 10. In a further modification, two pivot pins secured to each ladder side engage two slots at right-angles to one another on the guide brackets 10.
Patent GB-1083135-A (GB)
Title: Stable coating compositions
Inventor: NELAN NORMAN
IPC: C09D125/14
Filed: 1963-05-27
Abstract: Liquid coating compositions comprise a volatile organic solvent and a heat-curable polymeric material obtained by partially heat-reacting (a) an organic solvent-soluble acidic copolymer, with an acid No. of 10-150, of monomers including (I) an a ,b -monoethylenically unsaturated monocyclic aryl hydrocarbon and/or a C1- 12 alkyl ester of an a ,b -monoethylenically unsaturated monocarboxylic acid having an acid No. of 10-150, and (II) a monoethylenically unsaturated carboxylic acid having 1 or 2 -CO2H groups per molecule, with (b) an organic solvent-soluble epoxy copolymer, containing more than one oxirane group per molecule and having an oxirane equivalent weight of 200-15,000, of monomers including (III) an a ,b -monoethylenically unsaturated monocyclic aryl hydrocarbon and/or a C1- 12 alkyl ester of an a ,b -monoethylenically unsaturated monocarboxylic acid, and (IV) a glycidyl ester of an a ,b -monoethylenically unsaturated monocarboxylic acid, (a) and (b) are reacted in such proportions that the molar ratio of oxirane oxygen to carboxyl group is 0.1-1.0. Monomers specified are (II) acrylic and methacrylic acids, maleic and fumaric acids and their half-esters, and the vinyl half-esters of dicarboxylic acids, (IV) glycidyl acrylate and methacrylate, and (I and III) styrene, vinyltoluene, and alkyl acrylates and methacrylates.  The compositions may also contain pigments, other synthetic resins; plasticizers; slip or anti-abrasion agents; waxes; metallic driers; dispersing, bodying, suspending and surface controlling agents.  In the example, styrene/methyl methacrylate/ethyl acrylate/acrylic acid and styrene/methyl methacrylate/ethyl acrylate/glycidyl methacrylate copolymers are prepared in xylol using cumene hydroperoxide catalyst, thinned with xylol/butanol heated together and compounded with TiO2, diacetone alcohol, wax, silicone resin, i-propanol and xylol to give an enamel.ALSO:Liquid coating compositions comprising organic solvent solutions of the partial reaction products of (a) copolymers of ethylenically unsaturated carboxylic acids and (b) copolymers of glycidyl esters of a ,b -monoethylenically unsaturated monocarboxylic acids, which may also contain pigments and other resins and conventional additives (see Division C3) may be applied to substrates, such as steel panels, by spraying, brushing, dipping and roller or flow coating and cured by baking.
Patent GB-398012-A (GB)
Title: New or improved means for attaching knobs and handles to spindles of locks and latches or other like objects
IPC: E05B3/06
Filed: 1932-07-26
Abstract: 398,012. Attaching knobs. GOSLETT, M. G. and GOSLETT & Co., Ltd., A., 127, Charing Cross Road, London. July 26, 1932, No. 21115. [Class 44.] An adjustment for tightening a knob or other handle of the kind having a screwed flanged thimble c rotatable in a rose plate, both knob and thimble being axially apertured to take a non- circular.spindle y, is provided by giving the aperture in the thimble a shape differing from the section of the spindle but permitting selective engagement therewith in a number of radial positions advancing by small amounts. In the form shown, a square spindle coacts with an eightpointed star-shaped hole h in the thimble c, giving a 45‹ adjustment. As an alternative a spindle with a projecting key can be used with an internally fluted thimble.
Patent GB-154694-A (GB)
Title: Improvements in or relating to change speed gear for motor cars and the like
IPC: F16H3/16
Filed: 1919-08-30
Abstract: 154,694. Faire, J. H. C. Aug. 30, 1919. Variable-speed gearing; clutches. - Gearing for motor-vehicles having two principal speeds is combined with auxiliary clutch gearing, so that each principal speed can be reduced by the act of pressing .down a pedal. This facilitates dealing with a turn and with a hill simultaneously. The main clutch comprises a disk 6 feathered on a. shaft 7 and adapted to be pressed against the inside face of a driving fly-wheel 2 by a ring 19, which is normally held in operative position by spring plungers 20 on the fly-wheel A sleeve 5 carrying a cone member 3 of the auxiliary clutch has a groove 24 engaging the ends of levers 22 pivoted upon the ring 19 and upon the flywheel. The principal speeds are from the flywheel through the main clutch to the shaft 7, upon which slides a combined gear 27 and clutch member 26. The first principal speed is a direct drive effected by engaging the member 26 with a member 30 carried by the driven shaft 32. The second principal speed is effected by sliding the gear 27 into mesh with a gear 35 secured to a sleeve 36, which turns loosely on a fixed spindle 17. The drive passes through the pair 27, 35, and through another pair 37, 31. The other member 4 of the auxiliary clutch is connected by a sleeve 12 passing into the gear-box 8 to a pinion 15. The pinion 15 is connected to the shaft 7 through a reducing-train 16, 33, 34. When either principal speed is in action and a pedal is depressed, the sleeve 5 is slid to the right, so as to disconnect the main clutch and engage the auxiliary clutch, the reducing-train becoming operative. An idler 38 is provided for reversed driving.
Patent GB-168054-A (GB)
Title: Improved apparatus for condensing the mercury vapour in metal vapour rectifiers
IPC: H01J13/32
Filed: 1921-08-11
Abstract: 168,054. Siemens - Schuckertwerke Ges. Aug. 19, 1920, [Convention date]. Plate appctratus.-A. device for condensing mercury vapour in a rectifier fills the vapour-space and the spaces between the anodes, and affords a free passage for the vapour in an axial direction. As shown in Fig. 1, a cooling liquid passes through a number of double-walled cylinders d, which are connected together at points at the top and bottom, and are provided with gills g eatending into the spaces between the anodes c. Mercury vapour from the cathode b passes upwards between the cylinders d. In a modification, the gills extend inwards from an outer jacket h. In the arrangement shown in Fig. 5, liquid circulates through a single vessel m, having gills g and a series of tubes i<1> through which the vapour passes. The walls of the cylinders may be smooth, or corrugated axially, or transversely to the axis.
Patent GB-1135355-A (GB)
Title: Track intersection unit
IPC: A63H18/02
Filed: 1967-05-09
Abstract: 1,135,355. Track intersection unit. IDEAL TOY CORP. 9 May, 1967 [28 June, 1966], No. 21477/67. Heading A6S. A toy track intersection comprises a body having at least one pair of crossing guide grooves (12b) and a pair of flexible members (18), slidably mounted on said body, provided with resilient means (springs 30). Each member has an at-rest position from which it may be displaced through a limited stroke against the urgency of the resilient means. In operation, the vehicle guide (17b) in one groove contacts a first configuration (26) on a flexible member and moves it through a stroke (B). This causes a second configuration (28) in the other groove to move from its at-rest position in the groove, allowing vehicle (16a) and its guide (17a) to continue in motion along the groove. During this stroke the first configuration (26) is displaced by camming means (13c) allowing vehicle (16b) to progress to the second configuration (26 on part 20c) on the other flexible member where it is stopped. Vehicle (16a) on its return contacts the first configuration of the other flexible member (26 on 20b) and operates it through stroke A, thereby displacing the second configuration (26 on 20c) from the groove. Vehicle (16b) is now free to progress across the intersection, eventually returning to the position shown in Fig. 5 after which the cycle is repeated. The configurations are preferably triangular, as shewn.