baber/WOPTO huggingface dataset:
Patent GB-418580-A (GB)
Title: Process for the production of magnesite blocks of high resistance to changes of temperature
IPC: C04B35/03
Filed: 1933-02-28
Abstract: Magnesite blocks having great resistance to abrupt changes of temperature are made by grading granular sintered magnesite so that the portions composed of grains below 100 m  (fine) and above 1000 m (coarse) respectively are increased as compared with the ground material as it comes from the mill, adding small amounts of alumina, (2 to 6 per cent) or of substances containing or yielding alumina e.g. clay, bauxite, aluminium powder, and firing.  The marginal grain sizes between the fine and medium, and the medium and coarse may be sorted out so that in the finished charge the difference between the largest grain of one fraction and the smallest grain of the next higher fraction is at least 100 m . This difference may be from 400 to 1000 m  so that in the extreme case the medium fraction is entirely omitted.  In an example, 100 parts by weight of ground sintered magnesite as it comes from the mill (grain size 0 to 3000 m ) are mixed with 50 parts of fine meal (0-100 m ) and 100 parts of coarse (1000 to 3000 m ) together with 2 to 6 per cent of alumina (preferably 0-100 m ). The mixture is made plastic with water together with binding media if necessary, moulded at 200-1000 kg. per sq. cm., dried, and fired at 1400-1600 DEG  C.  Specifications 271,847, [Class 22], and 364,131 are referred to.
Patent GB-1261246-A (GB)
Title: Improvements in or relating to a fuel injection device for a compression-ignited internal combustion engine
IPC: F02M41/12
Filed: 1969-02-05
Abstract: 1,261,246. Fuel injection pumps. AUTOMOBILES PEUGEOT. Feb. 5, 1969 [March 5, 1968], No.6134/69. Heading F1A. In a fuel injection pump, the pump chamber communicates through a throttled passage with a cavity which stores a portion of the fuel delivered during the injection stroke, the passage having an adjustable hydraulically electromagnetically or mechanically operated closing means for isolating the cavity. The device shown in Fig. 1 comprises a cock 110 having a passage 113 connecting the throttle passage 106 with the cavity 105 which is of variable volume and in which the movement of piston 107 is limited by means of an abutment 109. The cock is controlled through a lever system 115, 116 by a fuel control lever 114 movable between abutments 117, 118. Fuel is passed to the injector C through passages 103, 104 as piston 102 moves on its forward stroke. In alternative constructions in which the cavity 105 has a fixed volume, the throttle may be provided within the cock, the adjustable closing means may comprise a slide valve having a tapered portion producing the throttling actions or the communication between the delivery chamber 101 and the cock can be made cyclic or permanent through recesses or apertures formed in the fuel distributing element. In the embodiment shown in Fig. 6 a slidable regulating throttle valve 122 meters the fuel delivery by means of a tapered portion 123 which throttles the fuel-flow. In a further embodiment the fuel feed pressure controls the adjustable closing means.
Patent GB-930361-A (GB)
Title: Process for the manufacture of orthoformic acid methyl ester
IPC: C07C69/06
Filed: 1962-02-16
Abstract: In a process for the preparation of orthoformic acid methyl ester from chloroform and a metal methylate, the metal methylate in a solid finely particulate form is suspended in orthoformic acid methyl ester and chloroform is slowly added to the suspension at elevated temperature.  Sodium, potassium, magnesium or aluminium methylates or mixtures thereof may be used and a diluent such as benzene or gasoline may be used.  The product is purified by rectification.
Patent GB-291533-A (GB)
Title: Improvements in hat leathers or sweat bands
IPC: A42C5/02
Filed: 1927-03-05
Abstract: 291,533. Dean, J. N. March 5, 1927. Addition to 264,775. Leathers or sweat bands. - The construction described in the parent Specification is modified by, (1) providing a separate sheath c for the cane or cord d; and, (2) omitting the adhesive between the back of the leather a and the waterproof strip b.
Patent GB-164122-A (GB)
Title: Improved frictional variable-speed, and reversing gearing
IPC: F16H15/02
Filed: 1920-03-02
Abstract: 164,122. Rae, H. F. March 2, 1920. Variable-speed and reversing friction gearing suitable for motor-vehicles comprises a grooved friction gear i and a like internal gear j pressed together variably to allow varying amounts of slip and so vary the speed transmitted. Reversed driving is obtained through an idler a between the gears i, j. In the arrangement shown, the gear j, which is driven from the gear i, is mounted in a sliding bearing d operated up and down through a spring c from a hand-lever l. The internal gear may alternatively be secured to the driving- shaft, the other gears being moved within it.
Patent GB-604748-A (GB)
Title: Improvements in and relating to electric fuses
IPC: H01H85/30
Filed: 1944-04-05
Abstract: 604,748. Fusible cut-outs. ELECTRIC TRANSMISSION, Ltd., and DANNENBERG, K. April 5, 1944, No. 6393. [Class 38 (i)] A fuse for maintained overloads and shortcircuits comprises a plurality of parallel fusible elements and a thermally responsive explosive means to interrupt the parallel connection on overload thereby throwing the whole of the load on the remaining elements and causing them to blow. In one form of fuse, the elements 4, 5 are electrically connected at one end but are insulated at the other end by a bar 8, which is bridged by the normally-closed spring- controlled switch contacts 31, one of which is pivoted about a bracket 27. On overload, after a predetermined time a striking pin 21, having a detent 36 is forced outwards to open the contacts by an explosive charge 24 which is fired by an element 6 in parallel with the elements 5, the whole load now being carried by the elements 4 which then fuse. A. modification includes a second striking pin mechanism 37 in parallel with elements 4 to actuate a tripping device on a multiphase switch after the first striking pin has operated, Fig. 3 (not shown). A second' modification takes the form of two similarly rated fuses in parallel, one having a pair of spring-controlled contacts to be opened by an insulating wedge on the striking pin, Fig. 4 (not shown). In a third modification, Fig. 5 (not shown), the explosive charge disrupts one of two elements directly connected in parallel, thus dispensing with the contacts. Specification 541,562 is referred to in the Provisional Specification.
Patent GB-310920-A (GB)
Title: Improvements in or relating to electrode material for vacuum electric tube devices
IPC: H01J19/00
Filed: 1929-02-27
Abstract: 310,920. Westinghouse Electric & Manufacturing Co., (Assignees of Elsey, H. M.). May 3, 1928, [Convention date]. Vacuum tubes.-A process for producing electrodes other than thermionic cathodes consists in coating a metal having a melting point above 1600‹C and a high tensile strength at the operating temperature with a layer of another metal which can be readily carbonized without becoming brittle; the layer of metal is preferably oxidized after being deposited and before carbonization. The core metal may be molybdenum, zirconium, tungsten, or tantalum, and the carbonizable metal may be deposited by electrolysis or spraying, and may consist of a metal of the iron group such as iron, cobalt, or nickel, or a nickel-chromium alloy. In the apparatus shown, a wire or ribbon 3 is wound from a reel 1 and through a plating bath 4, cleaning, oxidizing, and carbonizing tubes 9, 11, 13 respectively, and is wound on a reel 2 driven by a motor 18. The plating bath consists of a glass tube 5 wound with a heating coil 7 and lined with the metal, connected as anode, to be deposited. The electrolyte may consist of the chloride or sulphate of the metal to be deposited. Excess plating solution is removed in the tube 9 which contains water or other fluid in circulation. The wire in the oxidizing tube 11 is maintained at a high temperature by passing electric current through it. Air may be drawn through the tube 11 by means of a nipple 11'. Interposed between the oxidizing tube 11 and the carbonizing tube 13 is a chamber 25 having small apertures in the top and bottom for the passage of the wire &c., and provided with a jet 19 through which air or gas is blown to prevent the entrance of carbonizing gas into the oxidizing tube. The tube 13 or the wire in it is maintained at a temperature of 700-1000‹C and contains a gas rich in carbon such as acetylene, natural gas, ethylene or butane, or a mixture of acetylene and butane, which is forced through a nipple 17 and escapes through a capillary tube 24 or through the aperture in the top of the tube 13. The thickness of the carbonized layers may be controlled by mixing the hydrocarbon gas with inert gas such as nitrogen, argon, or helium, or by varying the time of exposure. The wire &c. is subsequently heated in a vacuum to remove occluded gas. The operations of plating and carbonizing may be performed with the wire &c. stationary. In a modification a reducing chamber containing hydrogen or natural gas is introduced between the oxidizing tube and the carbonizing tube so as to produce a surface more sensitive to the action of the carbonizing gas: or for this purpose the wire &c. may be made the cathode in an electrolytic bath.
Patent GB-163516-A (GB)
Title: Improvements in machines for grinding and stripping files
IPC: B24B3/60
Filed: 1920-03-03
Abstract: 163,516. Hodgkinson, T. March 3, 1920. Disc apparatus; tables.-In a machine for grinding and stripping files, a spindle B, Fig. 1, carrying a grinding wheel C, is journaled at both ends in bearings which are positioned in pedestals A, A' by packing-pieces a<2> held in position by plates H. A slotted table D is supported above the wheel C by bolts d<1> passing through slots a<4> in one only of the pedestals A. The table can be adjusted in height by means of a screw E. A slide-rest F may be arranged to carry a cutter for trueing the wheel, and an attachment G, Fig. 2, with a hand-rotated roller n may be mounted on the table D, for feeding files over the grinding- wheel. According to the Provisional Specification two grinding-wheels may be mounted, one above the other, and the files are passed between them.
Patent GB-1494341-A (GB)
Title: Road-making material
IPC: C04B18/04
Filed: 1975-02-12
Abstract: 1494341 Improved road making material REDLAND TECHNOLOGY Ltd 12 Feb 1975 [13 Feb 1974] 06466/74 Addition to 1406250 Heading C1J In a roadstone material comprising particles of a fired mixture of red mud and clay, as described in the parent Specification, the mixture constitutes less than 10 wt. per cent, preferably 5 wt. per cent, of clay.
Patent GB-229118-A (GB)
Title: Improvements in air sealing devices for mechanical grates
IPC: F23H11/18
Filed: 1924-03-13
Abstract: 229,118. Babcoch & Wilcox, Ltd., (Lulofs, W.). March 13, 1924. Grates.-In an air-sealing device for mechanical grates having a series of hinged elements pivoted close together on a horizontal shaft to form an air seal without banking, the hinged elements 2 are mounted so as to be vertically movable as a whole, and are of such small weight as to yield readily and adapt themselves to the passage of ash and clinker. Mounted on the horizontal shaft 9 is a counterweight 10, a handlever 13, and segments 8, which gear with racks 7 movable in slides 6. The hand-lever is adjustable on a quadrant 14 with pin holes selectively engaged by a pin 16. The quadrants, racks, and slides are arranged in recesses in the link work for protection. A hollow beam 17 is watercooled.
Patent GB-684900-A (GB)
Title: Shelving, show cases and the like
Inventor: VENDERVELD ANTHONY
IPC: A47F5/10
Filed: 1951-03-19
Abstract: 684.900. Cabinets; shelving. GRAND RAPIDS STORE EQUIPMENT CO. March 19, 1951, No. 6522/51. Class 52(i) Collapsable shelving, showcases, and the like include a foundation unit, Fig. 7, comprising a hollow vertical back post 1 formed at its front with a rib 2 flanked on each side by a vertical row of aligned openings, a horizontal member of inverted channel form being attached to the bottom of the post and having slots 11, 12 on its top face 7 and slots 8 on its side faces 6. The slots 8 accommodate clips 10, Fig. 5, which are screwed to the floor. The slots 11, 12 accommodate tongues 18 carried by bottom plates 13 which also carry tongues 20, 22 disposed as shown in Fig. 7 to engage the open front of the horizontal member. The plate 13 has a rear flange 15 defining a groove 16 in which lies a back panel 31, Figs. 11, 13 and 15. This panel is secured to the post 1 by a strip 24 embracing the rib 2, having panel-engaging flanges 26, extending the height of the post and having openings 27 coinciding with the openings 5. After the back panel is placed in position, these two openings are transfixed by clip members 28 which also have forwardly extending lugs 30 between which lie dividing panels 36. The fronts of the dividing panels are engaged in pilasters 32, the tops of which support bearers for shelves 49, Fig. 15, or runners 58, Fig. 23, for sliding glazed doors. The shelves 49 are supported by clip members engaging the back post through the openings 27, 5. When the runners 58 are provided, a stay 63 for the pilaster 32 is provided, the stay being fitted with a rear clip' member engaging the openings 27, 5. The top of the posts 1 may carry a finishing member 42, the detailed construction of which is described, Figs. 16-18 (not shown). Alternatively, the pilasters 32 may be extended to the top of the structure and support front bearers and the front ends of cross-bearers, the rear ends of which telescope into the tops of the posts 1. These bearers support glass or wood top panels, Figs. 26-41 (not shown). The front of the top panels may be provided with electric lamps.
Patent GB-936262-A (GB)
Title: Improvements in or relating to wire belting and particularly wire conveyor belting
Inventor: CHAPPLE JOHN
IPC: B65G17/08
Filed: 1961-02-23
Abstract: 936,262. Travelling-band filters. N. GREENING & SONS Ltd. Feb. 12, 1962 [Feb. 23, 1961], No. 6607/61. Class 46. [Also in Group XXX] To convey materials and at the same time to carry out a screening or a straining operation, belting comprises helical elements 10 of flattened oval form inter-linked by transverse members 11 having a degree of flexibility such that the belting can be flexed transversely without permanent distortion of the members 11. The members may be formed from flexible steel or other spring quality wire strands twisted together. Alternatively they may be non- stranded and may be crimped or buckled locally where they are engaged by the convolutions of the helical elements. The belting is able to run on cambered rollers to be troughed.
Patent GB-471534-A (GB)
Title: Improvements in or relating to shoe stiffeners
IPC: A43B23/08
Filed: 1936-03-05
Abstract: 471,534. Stiffeners for boots &c. BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Co.) March 5, 1936, No. 6622. [Class 17 (ii)] A stiffener for boots &c. comprising an absorbent sheet blank impregnated with a stiffening substance is provided with a layer of fibrous material which is adhesively secured to a marginal portion of the blank otherwise than by the impregnating substance, and which extends beyond a margin of the blank to form a relatively flimsy edge. The fibrous material may cover the whole of the blank or only a marginal portion. In a toe stiffener according to the invention, a cotton flannel blank 10 is skived at the rear edge on both faces ; the skived portion 16 on one face is about ¢" in width and that on the other face “" in width A band of adhesive is applied to that half of the skived portion 16 which is nearer the edge of the blank and a piece 18 of muslin is applied to the skived portion so that the edge 20, which is preferably selvedged, overlaps the edge 22 of the blank. The stiffener is pressed in the manner described in Specification 416,863, and is then impregnated. When the muslin covers the whole of one face of the blank it is secured to the margin of the blank by the adhesive, and to the remainder of the blank by the impregnating substance.
Patent GB-398172-A (GB)
Title: Improvements in or relating to stratified bodies, such as strengthened glass
IPC: B32B17/10
Filed: 1932-03-05
Abstract: 398,172. Compound glass. TRIPLEX SAFETY GLASS CO., Ltd., 1, Albemarle Street, Piccadilly, London, and WILSON, J., Triplex Works, Eccleshall Road, King's Norton, Birmingham. March 5, 1932, No. 6692. Addition to 332,551, [Class 20 (iii), Doors &c.]. [Class 140.] Cellulose ester plastics, for example celluloid or cellulose acetate, are united to sheets of glass coated with gelatine, with or without an enamel or cement, by bringing the sheets together while immersed in or flooded by an inert liquid comprising homologues of cyclohexanol, for example methyl or dimethyl cyclohexanols or derivatives thereof, for example methyl or dimethyl cyclohexanol oxalates, and then subjecting to heat and pressure. The inert liquid may be used hot and may comprise also cyclohexanol, glycerine, water, dimethyl, dibutyl or diamyl phthalates ethylene, glycol ether, diethylene glycol ether, cyclohexanone or its homologues, tri-aryl phosphates, paratolyl sulphonamide, benzyl alcohol, triacetin, toluol, xylol, amyl alcohol, secondary hexyl alcohol and mineral oil. In making compound glass the gelatine coating is dried until its water content is approximately 11 per cent. The enamel may be that described in the parent Specification or may comprise a 3 per cent solution of celluloid in a mixture of ethyl acetate, amyl acetate, amyl alcohol, diethylene glycol ether and glycerine diethyl ether. Specifications 326,229 and 328,919, [both in Class 20 (iii), Doore &c.], are referred to.
Patent GB-107779-A (GB)
Title: Improvements in Reversible Boats.
Inventor: GASKIN THOMAS HERBERT
IPC: B63C9/02
Filed: 1916-05-10
Abstract: 107,779. Gaskin, T. H. May 10, 1916. Pontoon rafts.-A reversible boat or raft is provided with two separate decks 23 each of which occupies the whole of the corresponding well of the boat &c. There are peripheral and between deck buoyancy chambers 16, 26 which also accommodate a series of air tanks. The buoyancy of the boat is thus independent of the buoyancy chambers, if necessary, and the outer skin might be replaced by open framework. The frame is braced by cross-beams 14 between the decks and an intersecting longitudinal beam or keelson 11 between the stem and stern posts. Vent tubes 33 connect the upper and lower spaces, and these may be fitted with valves. A form of reversible boat with a single deck is described in the Provisional Specification.
Patent GB-855313-A (GB)
Title: Improved package closure
IPC: B65D33/16
Filed: 1958-03-03
Abstract: 855,313. Packages ; paper and like bags. PLATEL, C., and VITHERM. March 3, 1958 [March 8, 1957; Oct. 2, 1957], No. 6796/58. Classes 94(1) and 94(2). A vacuum package comprises a bag closed at one end by parallel welds 3, 4, the inner weld stopping short of the bag edge to give communication between the bag interior and the space between the welds, the other end of this space being connected to atmosphere. The latter connection may be effected by stopping the outer weld short of the bag edge, as at 6, or puncturing the bag wall, Fig. 4 (not shown). The bag, substantially closed at one end by the welds 3, 4 is filled and then closed by a weld 7. The package is placed in a vacuum chamber and thereafter is kept sealed by external air pressure. Eyelets, not shown, may be provided in a corner of the package to suspend it within the vacuum chamber or autoclave, or to locate it if subjected to an immersing process.
Patent GB-139031-A (GB)
Title: Improvements in and connected with safety razors
IPC: B26B21/34
Filed: 1919-03-19
Abstract: 139,031. Edley, G., and Ayre, W. H. March 19, 1919. Razors, safety. A safety razor having a guard comprising fixed or rotatable rods, rollers, &c. 13 has these rods &c. supported or journaled in ears 10, 11 projecting at opposite ends of each longitudinal edge of the guard 2 and integral therewith, the Ears being bent around the ends of the rods &c. to form the supports cr bearings.
Patent GB-143999-A (GB)
Title: Improvements in and relating to mechanical diggers
IPC: A01B11/00
Filed: 1919-03-20
Abstract: 143,999. Burt, J. L., (Miller, M. L.). March 20, 1919. Diggers. - In motor-driven mechanical digging or ditching machines in which the tools are operated by cranks and controlled by pivoted links, means are provided for discharging the earth at the side of the trench, for adjusting the depth of work, and for alternatively driving the travelling wheels independently of the digging-mechanism or simultaneously with it and at a speed proportionate to that of the diggers. The machine shown in Fig. 1 comprises a channel-iron frame 1 mounted on two driving- wheels 2 and a steering-wheel 3. The wheels 2 are driven directly from the engine 4 through a gear-box 5, a longitudinal shaft, a cross-shaft 12, and bevel, spur, and differential gearing. Means are also provided for driving them from the shaft 25 of the digging-mechanism by chain gearing and free-wheel clutches. The crank-shaft 25 is driven directly from the engine through a longitudinal shaft, a cross-shaft 14, and bevel and spur gearing. The crank-shaft 25 is supported by sets of pivoted arms 13, and is adjusted by means of pivoted bars 15, a nut 16, screw 17, and handwheel 18. The shafts 36 of the digging-spades 37 are pivotally connected to the cranks on the shaft 25 and to controlling-links 35. Cutting- disks 53 are carried by extensions of the arms 13. The spades are arranged in pairs as shown in Fig. 4. Each has webs 38, 39 on the lower and upper side respectively. The soil dug up is discharged laterally by pivoted and spring-controlled plates 40, 42 moved across the spades by rods 43 connected to collars 44 sliding on rods 45. As the crank-shaft 25 rotates, the collars 44 engage slipper blocks 48 on rods 49 pivoted on the shaft 25.
Patent GB-905008-A (GB)
Title: Improvements in or relating to solutions and processes for the production of phosphate coatings on metal surfaces
IPC: C23C22/16
Filed: 1960-02-26
Abstract: An aqueous solution for forming phosphate coatings on metal surfaces (particularly iron and steel) contains one or more coating metal phosphates, one or more water-soluble salts derived from a phosphorus-containing acid wherein there is a direct linkage between two phosphorus atoms and in which the polar-number of at least one of these phosphorus atoms is less than 5, and a peroxide as accelerator. The solution preferably contains 1-15 g./l. coating metal (e.g. zinc), 0.01-10 g./l. water-soluble salt, and peroxide (calculated as H2O2) in an amount of 1/30 th to 1/8 th of the amount of coating metal. The water-soluble salts may be formed with the alkali metals, ammonium, magnesium, triethanolamine and cyclohexylamine, and may be derived from hypophosphoric and diphosphorous acids; structural formul  of other suitable salts are given.  The peroxide may be introduced into the solution as hydrogen peroxide, or hydrogen peroxide may be generated in the solution by introducing per-compounds (such as perphosphates, perborates and ammonium persulphate) together with an amount of acid to maintain constancy of pH.  The solution is preferably supersaturated in respect of the coating metal phosphate and possesses a pH (that may be stabilized by buffers such as sodium and/or zinc acetate) which exceeds the pH of equilibrium.  The phosphate coatings may be treated in chromic acid solution.  Specification 852,226 is referred to.