baber/WOPTO huggingface dataset:
Patent GB-182859-A (GB)
Title: Improvements in or relating to the treatment of caliche
IPC: C01D9/02
Filed: 1921-03-09
Abstract: 182,859. Broadbridge, W., Edser, E., and Sellers, W. G. March 9, 1921. Lixiviating.-In the extraction of sodium nitrate from caliche or like process the heated solvent liquor is circulated through the body of crushed caliche and through an agitation vessel to flocculate the slimes. The process also comprises the mixing with the liquor of a flocculating- agent causing deposition of the slime upon the solid residue of the caliche during circulation of the mixture. Or heated solvent liquor may be brought into contact with crushed caliche and mixed, out of contact with the caliche, with a flocculating-agent, the resulting coherent masses being forthwith removed by passing the liquor through a filter bed. In one example crude caliche is crushed to pass an aperture half an inch square in a breaker A and trommells B. D, and introduced into tanks F<1> - - F<10> provided with false bottoms and' steam-heating coils. The solvent liquor is passed from a store tank G first into the tank containing the most completely exhausted caliche and transferred from tank to tank until the tank containing fresh caliche is reached, after which the strong liquor is crystallized in vessels H, the crystals being separated bv a centrifugal or vacuum separator J and the cold liquor returned to the store tank. Wash water from a tank K is used for finally displacing liquor from the fully exhausted caliche and replaces water lost during the cycle. Each extraction unit comprises a tank L with false bottom N and heating coil T and an agitation vessel M having baffles M<1>, an impeller and inlets Q, R for liquor and air. A centrifugal pump may replace the agitation vessel. The liquor is caused to circulate several times through any tank before discharge. Boiling of the circuit liquor is avoided, the temperature rising from about 30‹ C. in the tank containing the exhausted caliche to 110‹ C. in the tank containing the liquor ready for crystallization. In another example crude caliche is first crushed to pass half an inch aperture and then passed through a trommel with cue-tenth of an inch aperture. The coarser particles are dealt with as in the first example and the fines are treated separately, nitrate being fiist extracted in a mixing tank having heating end agitafing means; the pulp may then be introduced into a classifier and the deposited sands washed, the wash water being sent to the liquor tank. The mother liquor which contains much material in suspension is treated in apparatus of the type employed in the concentration of ores by froth-flotation, whereby the bulk of the slimes are removed in the form of froth and unfloated slimes are flocculated.
Patent GB-584675-A (GB)
Title: Method of and apparatus for electro-plating cylinders
IPC: C25D17/12
Filed: 1944-04-24
Abstract: 584,675. Electroplating. COULSON, S. April 24, 1944, No. 7591. [Class 41] [Also in Group XXII] In a process for plating a printing cylinder 3 with copper, nickel, zinc, chromium, brass or cadmium, a lead or other metal cradle 2 is arranged co-axially therewith and supports a number of lead spacers 4, covered by a lead plate 5, upon which is placed the copper anode formed of interleaved shells from previouslyplated cylinders, by folding as in Figs. 13, 14. The anode is pressed into arcuate shape and held in place by a filter 10 of, e.g., wool felt, which is held down by the cross-rods 7 of frames 6; pivoted at 9 to the spacers 4 or the plate 5. Since the inlet throat T is of constant size, the flow of electrolyte therethrough is uniform. The rod 7 of the frame 6 may be replaced by a lattice of insulated wires, Figs. 4, 5 (not shown) in order to increase the agitation of the electrolyte, and the filters 10 and copper shells 11 may be fixed to the frame. In Figs. 6. 7 (not shown) the frame is buoyant and of similar form to that of Fig. 1, except that the filter is fixed to it. The frame is held in place on lead bars by copper bars. To overcome unevenness of deposition, the frame may be strung with zig-zagged wires, Fig. 8 (not shown), so that the electrolyte is moved from side to side. The parts 2, 4, 5 may alternatively be made of glass, stainless steel, " Monel " metal (Regd. Trade Mark), or rubber.
Patent GB-1243747-A (GB)
Title: Improvements in bearings
Inventor: RATHBONE IVANHOE JOHN
IPC: F16C33/78
Filed: 1969-02-12
Abstract: 1,243,747. Bearings. REMO PRECISION TOOLS Ltd. 21 Jan., 1970 [12 Feb., 1969], No. 7674/69. Heading F2A. A radial rolling bearing assembly comprises an annular seal 8 provided with resilient, radially outer portions 14 outwardly displaced from its otherwise circular outer edge 11 and received as a snap fit in a groove 15 formed in the outer race 5. The portions are formed by cutting arcuate slits 13 in the seal, and are preferably bent axially to seat on a tapered edge 18 of the groove, as well as radially. The seal may be dish-shaped with three concentric portions 9, 10, 11. It is made from hardenable stainless steel.
Patent GB-765036-A (GB)
Title: Cyclization of aromatic carboxylic acid compounds
Filed: 1955-03-16
Abstract: o-Arylmethyl aromatic carboxylic compounds and o-aroyl aromatic carboxylic compounds are ringclosed by heating with 0.1 to 5 per cent by weight of an acidic dehydrating agent at 100-300 DEG  C.  An inert diluent may be present.  Dehydrating agents specified are toluene sulphonic acid, chlorsulphonic acid, the halides of aluminium, zinc, calcium, and iron, phosphoric acid and its anhydrides, phosphorus pentachloride, hydrofluoric acid, sulphuric acid, oleum.  Inert solvents specified are dodecane, trichlorbenzene, tetrachlorbenzene, tetrachlornaphthalene. Substituents which do not affect reaction, e.g. nitro, alkyl, halogen, may be present in the starting material. Examples describe the ringclosure of benzoyl-2-benzoic acid with a small quantity of 96 per cent sulphuric acid, with and without trichlorbenzene, which latter may be subsequently removed by steam distillation.
Patent GB-514669-A (GB)
Title: Improvements in or relating to the mounting or setting of gems, precious stones or the like
IPC: A44C17/02
Filed: 1939-03-09
Abstract: 514,669. Jewellery. BAKER PLATINUM, Ltd,. and PRITCHARD, S. H. March 9, 1939, No. 7701. [Class 43] In a mounting for gems consisting of a cage or frame d having claws c at its periphery which are bent over to hold a gem in positior therein, an annular plate or ring a slotted round its edge at b to accommodate the claws is inserted in the upper part of the cage or frame to form a seating for the gem e. The parts of the plate visible after the gem is mounted are provided with facets g to harmonize with facets e<1> on the gem.
Patent GB-557442-A (GB)
Title: Improvements in and relating to rope
IPC: D07B1/16
Filed: 1942-04-16
Abstract: 557,442. Ropes; waterproofing ropes and fibres. FINE COTTON SPINNERS' & DOUBLERS' ASSOCIATION, Ltd., ROBINS, C., BLEACHERS' ASSOCIATION, Ltd., and KERSHAW, W. April 16, 1942, No. 7788/43. Divided out of 556.747. [Class 109] [Also in Group VIIII] A floatable rope consists solely of stranded, plaited or braided fibres enclosed within a flexible waterproof sheath the material of which does not impregnate the rope. The flexible sheath may be obtained by winding spirally a strip of waterproof material around the rope, by dipping or brushing the rope with a dispersion or a solution of a waterproofing material and coagulating or evaporating the solvent, or by passing the rope through an orifice and extruding waterproof material on to its surface. The waterproof materials used may be rubber, chlorinated rubber and artificial rubber, or flexible synthetic plastic materials such as polyvinyl compounds, aldehyde condensation products of partly hydrolyzed polyvinyl resins, polyethylene, glyptal resins and oil-unodified glyptal resins, alkyl celluloses, cellulose esters or oxidised oils. In the strip method, the material may be cellulose film or woven fabric, such as bias tape, impregnated or coated on one or both sides with waterproof material. The fibres of the rope may be rendered water-repellent as described in Specification 556,747, and when the rope is intended for use as a life line for sea rescue purposes it may be rendered luminous by treatment with phosphorus as described in Specification 556,747.
Patent GB-246345-A (GB)
Title: Improvements relating to the impregnation of thread for boot-making and the like
IPC: D05B67/00
Filed: 1924-10-16
Abstract: 246,345. Benda, J. Oct. 16, 1924. Threads, treating with liquids, gases, and vapours.-Sewing-thread for use in boot-making machine.s is impregnated with a known composition comprising a solution of celluloid or other cellulose derivative in acetone or the like, together with resinous substances such as colophony, pitch, paraffin wax or the like, stearine, gutta-percha, tallow and oils such as castor and linseed oils, and is passed, as it enters the machine, through a solvent, such as acetone, to soften it for use. The impregnated thread is preferably stored before and during use in airtight chambers, and exposed to the vapours of the solvent. For this purpose the thread may be wound on perforated reels. Methyl formate or acetate or amyl acetate may be used as solvent instead of acetone. Other specified substances which may be included in the impregnating composition comprise turpentine, cerosine and dyes. When white' thread is required, a solution of celluloid and collodion is used for impregnating.
Patent GB-196165-A (GB)
Title: Improvements in means for retaining bedclothes, curtains and the like in position
IPC: A47H19/00
Filed: 1922-03-20
Abstract: 196,165. Sales, H. March 20, 1922. Addition to 191,634. Hooks.-The retaining device for bedclothes, curtains &c. described in the parent Specification and comprising a length of wire with hooked protected ends 1 bent at its middle to form a pair of parallel side portions 3 between which the bedclothes &c. are gripped, is provided with means to prevent the side portions 3 being splayed apart, said means comprising a hook member 8 having an eye portion 7 rotatably secured to one of the side portions 3. The member 8 may be prevented from sliding by recessing the portion around which the eye 7 is secured.
Patent GB-344235-A (GB)
Title: Improvements in drawing instruments
IPC: B43L9/00
Filed: 1930-03-12
Abstract: 344,235. Drawing instruments. PFLœGER, R., 2, Langermannsweg, Hamburg, Germany. March 12, 1930, No. 8083. Convention date, March 15, 1929. [Class 97 (iii).] A device for ruling great circles on a spherical surface comprises a ring &c. defining a great circle and capable of rotation about an axis through the centre of the sphere, and a semicircular ruling member pivoted at opposite ends of a diameter of the ring &c. In Fig. 1 the drawing surface 1 is hemispherical and has a baseplate 2 on which rotatably rests the ring 3 the plane of which contains the centre of the sphere. The semicircular ruling member 4 is pivoted to the ring 3 and can thus be moved so as to enable a great circle to be ruled in at any desired part of the spherical surface. In Fig. 3 the ring is dispensed with and a great circle g of. the sphere 1 is marked with angular graduations, the member 4 being capable of being attached by pivot pins F, G at any two points separated by 180‹.
Patent GB-805423-A (GB)
Title: Improvements in or relating to building components
Inventor: BANKS GEORGE
IPC: E06B1/70
Filed: 1956-03-15
Abstract: 805,423. Door and window sills. BANKS, Ltd., W. P. May 16, 1956 [March 15, 1956], No. 8107/56. Class 20(3) A door or window sill comprises in one unitary structure of precast concrete or other like material a block 1 having a stepped upper surface including a relatively long flat portion 2 constituting a ledge or shelf to be positioned inside the building, an intermediate relatively short flat portion 3 at a lower level than the portion 2 adapted for the seating of the window or door frame, and a relatively long downwardly and outwardly sloping flat portion 4 at a lower level than the portion 3 and constituting the drip-ledge. The under surface of the block 1 is substantially flat except for a drip groove or recess 5 located near the outer end of the drip ledge 4 and a further drip groove or recess 6 may be provided at about the position where the outer wall of the building will engage the block. The exposed surfaces of the block may be treated to simulate stone or tiles on the drip ledge 4 and terrazzo or other finish for the inner ledge 2. When precast in concrete, the ingredients may be fed into a mould which is vibrated, different mixtures being used as necessary to give different colours and surfaces.
Patent GB-788494-A (GB)
Title: Improvements in or relating to boning knife
Inventor: BETTCHER LOUIS ANDREW
IPC: B26B25/00
Filed: 1956-03-15
Abstract: 788,494. Meat cutters. BETTCHER INDUSTRIES, Inc. March 15, 1956, No. 8140/56. Class 28 (2). For cutting meat off bones, a power-rotated ring 13 with a projecting cutting edge 34, Fig. 4, is mounted on a handle 14 containing a flexible driving shaft 19. The edge 34 may be plain or serrated (Fig. 8, not shown). The ring 13 is pressed into an outer resilient ring 22 and locked therein by pressing in an inner resilient ring 21, both rings having gaps to allow resilience, the cutting ring being locked between the outer and inner rings. The cutting ring has gear teeth whereby it is rotated by a worm 44 or by bevel gears 57, 58 (Fig. 9, not shown). The outer and inner rings have flanges with holes to receive screws which clamp them to the head 15 of the handle 14. Grooves in the stationary inner and outer rings form a bearing within which the cutting ring can rotate.
Patent GB-512254-A (GB)
Title: Improvements in or relating to machines for cutting work blanks
IPC: B23Q7/04
Filed: 1938-03-17
Abstract: 512,254. Sawing. KODAK, Ltd., and GUY, H. March 17, 1938, No. 8223. [Classes 145 (i) and 145 (ii)] [Also in Group'XXII] In a machine for automatically feeding, cutting and releasing a work blank, the blank is fed to a reciprocatory clamping device which, during its forward travel, clamps the blank, moves it past a cutter and then releases the blank before returning to the receiving position. The hinged clamping jaws 8 and 9 are carried on a reciprocatory plate 2 supported on base 1 between guides 3, 4. The jaws are moved to clamp or unclamp the work by spring arms 17, the ends of which engage cam surfaces 21, 22, 23 carried by a plate 20 secured to the guides 3, 4. When the slide 2 is moved to its extreme left position, the jaws 8, 9 are open and are adapted to receive the lowest - one of a pile of blanks carried in the hopper 40. As the slide 2 is moved to the right, the jaws close, the plate 43 moves under the pile of blanks and the blank clamped in the jaws is cut by the rotating cutter 15. Finally, the jaws open, and the blank is ejected into a chute 44. The ejecting means consist of a disc 25 carried by a pin 27 which is operated by an angle lever 29 and rod 33 having stops 35, 37 co-operating with a fixed plate 34.
Patent GB-1206093-A (GB)
Title: Improvements in interleaved shear and seam welder
Inventor: SEELOFF MELVIN MAX
IPC: B23K11/06
Filed: 1969-02-15
Abstract: 1,206,093. Welding by pressure; strip-joining apparatus; shearing. TAYLOR-WIHFIELD CORP. 15 Feb., 1969, No. 8319/69. Headings B3A, B3R and B3W. Apparatus for trimming adjacent ends of strip and then welding the strip with overlap to form a continuous length comprises a welding transformer 36 positioned laterally of the shear and on one side of the path of movement 12 of the strip, and a pair of opposed roller electrodes 31, 32 positioned laterally of the shear and on the other side of the path of movement 12 and means interconnecting the transformer to the electrodes to provide short paths for the welding current. A C-shaped frame 11, movable transversely of the path 12 on a fixed base 10 supports lower and upper blade carriers 14, 20, respectively, the lower carrier 14 and shear blade 13, which may be single- or double-edged, being vertically movable through a transverse lever 17 and toggle 18 linkage and the upper carrier 20 and blade 19, which may be single- or doubleedged, being vertically movable through a transverse lever 26 and toggle 23, 23<SP>1</SP> linkage. Roller electrode 32 is mounted on a vertically slidable shaft 34 whereby the electrode may be raised or lowered. During welding traverse of the electrodes along the seam the strip is clamped in position by clamps (not shown). In one embodiment (as shown), current conductors 37, 40 are sandwiched between parts of the upper and lower blade carriers 20, 14, respectively, and are insulated therefrom by insulation 38, 41. In another embodiment (not shown), the conductors may simply be attached to and insulated from the blade carriers. In yet another embodiment (not shown) the blade carriers themselves constitute the conductors. Connections between the transformer 36 and conductors, and the conductors and electrodes 31, 32 are by flexible conductors 39, 42. Guide pins 29 and bushes 30 ensure correct alignment of the blades as they come together.
Patent GB-407198-A (GB)
Title: An appliance for use in examining the mouth and antrum for use in operating in the mouth
IPC: A61B1/247
Filed: 1933-03-20
Abstract: 407,198. Mouth &c. examination lamps. EDEY, G. R., 154, High Street, Bromley, Kent. March 20, 1933, No. 8337. [Class 81 (ii).] A lamp for use in examining the mouth and antrum comprises a tapered ebonite or other insulating handle A, Fig. 1, centrally bored to receive leads B, one of which contacts with a switch point E, the other being connected to a central lamp electrode C having a spring D. The lamp K, which is preferably of the pocket lamp type, is screwed into a socket F itself screwed on to the handle A. The socket F carries a screw socket H receiving the stem of a mirror J, the stem being locked in position as by a grub screw, and a reflector G having an extension G<1> extending over and adapted to be pressed into contact with the switch point E. The leads B may be connected to the mains through a resistance, or to a battery L, Fig. 3, enclosed in a box M having a sliding back N, a strap R, a clip P to receive the lamp when in use, and clips O mounted on bobbins Q for receiving the lamp during transport and supporting the leads wound thereon respectively.
Patent GB-856228-A (GB)
Title: Improvements in self-laying tracks
Inventor: LIEBRECHT HEINRICH FRITZ
IPC: B62D55/08
Filed: 1958-03-17
Abstract: 856,228. Endless tracks for vehicles. LEEFORD (LONDON) Ltd. March 13, 1959 [March 17, 1958], No. 8433/58. Class 79(1). A self-laying track for a vehicle wheel Fig. 1, having links 2 of channel section carrying rack means 13 engaged by driving teeth 10 on the wheel 1, is maintained in engagement with the wheel 1 by chains 17 cooperating with groups of three sprockets 19 arranged on alternate pivotal connections 16 of the links 2. Each pivot 16 Fig. 4 carries a sprocket 19 and a pulley 20 on opposite sides of the central flange 7 of the links 2, the pulleys 20 acting to tension the chains 17, by deflection, when passing over the top of the driving wheel 1. The sprockets 19 are rotatably mounted on bearing sleeves 22 and include resilient rings 26 engaged over conical surfaces of a hub 24. The teeth 10 of the driving wheel 1 may be formed in pairs on detachable plates 12 mounted on opposite sides to engage rollers 13 on the pivots 16 and enclose wear rails 9 on the central flanges 7.
Patent GB-122114-A (GB)
Title: Skids for Lowering and Raising Boats.
Inventor: EKBLOM EXEL
IPC: B63B23/36
Filed: 1918-05-21
Abstract: 122,114. Ekblom, E. May 21, 1918. Fenders.-Detachable skids 1 are attached to the side of a boat to facilitate lowering down a ship's side by inserting their lower ends in socke'ts, loops or the like 7 on the bottom of the boat and by securing their upper ends by bolts 4 or the like. The skids may be made of half round irons held on wooden blocks 2 by screws. Compressible packings 3 may be placed between the skids and the boat's side.
Patent GB-125268-A (GB)
Title: Improvements in or relating to Steam Engines.
Inventor: COCHRANE DAVID ALEXANDER
IPC: F01L33/02
Filed: 1918-05-22
Abstract: 125,268. Cochrane, D. A. May 22, 1918. Casings; engines with two or more parallel cylinders with axes perpendicular to main shaft.-A steam-engine is provided with a number of parallel cylinders 1, 2, 3, 4 working on a common shaft 5, and has a single rotary admission valve 6 working in a hand-operated reversing.sleeve 7 and driven by a chain 8 and sprocket wheels 9, 10. The cylinders are provided with terminal exhaust ports 15 controlled by the pistons. The crankcasing constitutes an oil bath, and is provided with doors 17.
Patent GB-732934-A (GB)
Title: Method of improving the properties of fibres and other shaped articles of polyvinyl alcohol
IPC: D01F6/14
Filed: 1953-03-27
Abstract: Shaped polyvinyl alcohol bodies are treated with a compound selected from the group consisting of dialdehydes, ketoaldehydes and acetals thereof.  The term "polyvinyl alcohol" includes copolymers containing at least 80 per cent of the alcohol. Specified shaped bodies are fibres, filaments, tubes, envelopes and films and it is preferred that the body comprises a polyvinyl alcohol fibre which shrinks in water at 80 DEG  C. not more than 5 per cent of its length. Specified compounds are glyoxal, succinic, malonic, adipic, alpha hydroxy adipic, suberic and pyruvic aldehydes and their acetals, phthalic, isophthalic, terephthalic, chloro- or nitro-substituted terephthalic, phenylmalonic and formylhydroxycinnamic aldehydes, diphenyl and diphenyldisulphide dialdehydes, mesitylene trialdehyde and phenylglyoxal, while mixtures of these compounds with each other or with other aldehydes such as formaldehyde may be used.  The treatment with other aldehydes may also either precede or follow the dialdehyde treatment.  They may be applied as vapours or in solution in water or in an organic solvent together with an acid catalyst in an amount of 0.5 to 25 per cent, or with a mixture of acid and inorganic salt in an amount of 5 to 25 per cent.  The temperature of acetalization may be from 30 DEG  to 90 DEG  C.  The shaped body may be heat-treated before the dialdehyde treatment, and may be reacted, after the dialdehyde treatment, with a compound which reacts with the carbonyl group, e.g. an amino compound or a phenol.
Patent GB-913233-A (GB)
Title: Improvements in shaped graphite articles
Inventor: FISHER RICHARD STONER
IPC: C04B35/52
Filed: 1961-03-09
Abstract: A shaped graphite article is produced by mixing comminuted carbon and a carbonizable binder material with at least one of titanium carbide, boron carbide, molybdenum carbide, niobium carbide, vanadium carbide, zirconium carbide, the carbide being present in at least 5% by wt. of the mixture; shaping the mix, baking to carbonize the binder, and graphitising in the presence of at least 4% by wt. of silicon carbide.  Residual carbide may be removed by heating the article in the presence of a gaseous halogen.  The carbides may be produced in situ in the article prior to graphitising and the silicon carbide may be added to the mixture prior to shaping, or it may be produced in situ during graphitisation.  The total carbide content may be up to 20%, the ratio of silicon carbide to the other carbide being at least 0,8 to 1.ALSO:A shaped graphite article is produced by mixing comminuted carbon and a carbonisable binder material with at least one of titanium carbide, boron carbide, molybdenum carbide, miobium carbide, vanadium carbide, zirconium carbide, the carbide being present in at least 5% by weight of the mixture; shaping the mix, baking to carbonise the binder, and graphitising in the presence of at least 4% by weight of silicon carbide.  The carbides may be produced in situ in the article prior to graphitising and the silicon carbide may be added to the mixture prior to shaping, or it may be produced in situ during graphitisation.  The total carbide content may be up to 20%, the ratio of silicon carbide to the other carbide being at least 0,8 to 1.