baber/WOPTO huggingface dataset:
Patent GB-857950-A (GB)
Title: Fault detector for polyphase circuits
Inventor: MCCONNELL HOWARD MARION
IPC: H02H3/34
Filed: 1958-06-10
Abstract: 857,950. Protective cut-out arrangements. JACK & HEINTZ Inc. June 10, 1958, No. 18498/58. Class 38 (5). A polyphase protective arrangement has networks for obtaining separately components dependent on the negative sequence and zero sequence voltages of a protected system, the components being separately rectified and applied to a relay so that their effects are additive. The zero sequence network may comprise resistors 11 . . . 13 star-connected between phases a . . . c and neutral n and the negative sequence network may comprise voltage transformers 23, 24, an inductor 33, a resistance 36 and variable resistors 32, 35. The components are rectified in rectifiers 17, 31 which are connected so that their outputs are added and applied to a relay coil 48. Alternatively, the rectifiers may be connected to individual coils of a relay, the coils acting in the same sense. By suitable adjustment of variable resistors 15, 41, the arrangement may be set so that its response is dependent on the severity of a fault condition whether the fault is a line-to-line fault or a line-to-earth fault.
Patent GB-573577-A (GB)
Title: Improvements in replaceable glassware cap closures, lids and the like
IPC: C03B9/32
Filed: 1943-11-08
Abstract: 573,577. Advertising on jar lids. PLATT, T., and KEY GLASSWORKS, Ltd. Nov. 8, 1943, No. 18515. [Class 3 (ii)] [Also in Groups XVII and XXIII] The seal between rim 36 of a jar &c. and shoulder 38 of its cap 34 may be reinforced by a wad or disc 39. Indicative, pictorial or advertising matter on the disc is visible through the cap top 32.
Patent GB-506229-A (GB)
Title: Improvements in or relating to steel welding rods
IPC: B23K35/30
Filed: 1938-06-22
Abstract: 506,229. Alloys. BRITISH OXYGEN CO., Ltd., and PERCIVAL, L. C. June 22, 1938, No. 18523. [Class 82 (i)] A welding-rod for the production of joints highly resistant to creep and to scaling at elevated temperatures comprises a non-austenitic steel having no intentionally-added chromium and composed of iron with the usual amounts of carbon, silicon, and manganese together with 0À25-1À5 per cent of molybdenum. In addition, there may be present up to 1 per cent in all of one or more of the elements copper, nickel, and vanadium, the preferred upper limit for each being 0À2 per cent. In an example, a rod may be composed of iron with 0À08-0À15 per cent of carbon, 0À4-0À5 per cent of silicon, 0À7-1À5 per cent of manganese, and 0À5-0À7 per cent of molybdenum. Specification 352,714 is referred to.
Patent GB-530539-A (GB)
Title: Improvement in attachment for milling or other machines
IPC: B23Q5/04
Filed: 1939-06-27
Abstract: 530,539. Attachments for milling. PALUMBO, V. June 27, 1939, No. 18648. Convention date, July 18, 1938. [Class 83 (iii)] An attachment for a standard milling- machine comprises a mounting connectible to a machine part such as the overarm a<SP>5</SP>, a shaft 10 supported in the mounting and connectible to the machine spindle a' and an adjustable housing 26 carrying a transverse tool spindle 35 geared to the shaft 10. The machine table a is supported on the usual saddle and knee. A circular fitting 5 is secured by bolts 6 to the mounting and has a boss 7 projecting through a hole 8 in the mounting and bushed to receive the socketed end of shaft 10 connected by a sliding key 12 to the spindle. The lower end of the mounting is braced by links 15 connected at 21 to the machine frame. The housing 26 is angularly adjustable around the spindle axis by means of a circular slot 25, and setting- scale. The transverse tool-spindle 35, journalled in the housing 26 is driven through bevel gearing 37, and carries a chuck 38 for a tool 40. The opposite end of spindle 35 carried a bevel gear 42 driving a second tool-carrying spindle 44 which is mounted in a housing 45 angularly adjustable about the axis of spindle 35 by means of a circular slot 48 and setting-scale 32. Tools 55, 56 may be attached to opposite ends of this spindle. A third spindle may be carried in a fitting 70 which may be clamped over the end of the housing 45. The tool 56 is removed and the end of a worm-shaft 80 is keyed at 98 to a collet sleeve carried by the shaft 44. The worm shaft carries a gear 84 driving a similar gear on a spindle 89 carrying a milling-cutter or saw 92, an angular scale 93 being provided for setting purposes. The work, such as a ring W on which tapered teeth w are to be cut is secured to a plate 61 which may be indexed by a head 62 on a support 63 which may be angularly adjusted by a scale 66 on a base 64 secured to the table which is reciprocated to move the work past the cutter. The work is first cut with parallel slots and is then angularly adjusted to taper off the sides of the teeth.
Patent GB-517320-A (GB)
Title: Improvements in or relating to crockery
IPC: A47G19/23
Filed: 1938-06-24
Abstract: 517,320. Drinking vessels. GILLER, W. L. June 24, 1938, No. 18724. [Class 128] Cups, basins. beakers, crucibles &c. are shaped so that when stacked the outer surface of one article is spaced from the inner surface of the article into which it is stacked so that washing liquid or steam . may pass through the space and the articles can be washed and dried by draining or by hot air without unstacking. The lower part of the cup is formed with longitudinal grooves c or recesses or projections which need not extend to the rim, and projections d are formed between the grooves. The projections may be formed by lugs one of which may constitute the handle.
Patent GB-186453-A (GB)
Title: Improvements in three speed and free wheel hubs for motor and other cycle wheels
IPC: B62M11/14
Filed: 1921-07-11
Abstract: 186,453. Roes, J. July 11, 1921. Variable - speed gearing.-A threespeed and free-wheel hub for motor and other cycle wheels comprises a sliding sleeve 26, Fig. 1, splined to the driving-sprocket 47 and adapted to engage selectively through ratchet mechanism central gears 32, 33, 34. The hub shell is in two parts, 1, 2 of aluminium secured by a screwing-ring 4. Passing through is a hollow axle 9 to which is secured a crown 16 supporting four countershafts 20. To each of the shafts 20 are secured gears 22, 23, 24 meshing respectively with gears 32, 33, 34, which are loose on the sleeve 26, the gear 34 being also secured to the hub part 2. Upon the sleeve 26 are three ratchet clutches 35, 36, 37 adapted to entrain the central gears according tc the position of the sleeve. Each clutch comprises two clicks 38, Fig. 2, actuated by spring pushers 41, the clicks acting by engaging ratchet teeth within the gear hubs. A direct drive and two reduced speeds are produced. The sleeve is operated by a rod 25 having an arm 64, Figs. 1 and 14, adapted to be turned by a lever 72 over a fixed cam 57 of the form shown in Fig. 13. The axle 9 is fixed to a fork 13 of the vehicle by a fitting 15, Fig. 4, having tongues 15<1>, 15<11> entering the opening 12 of the fork.
Patent GB-1147753-A (GB)
Title: Submerged arc welding of nickel steels
Inventor: BUCKINGHAM HERBERT CHARLES
IPC: B23K35/30
Filed: 1965-05-04
Abstract: 1,147,753. Welding by fusion. BRITISH OXYGEN CO. Ltd. 2 Aug., 1966 [4 May, 1965], No. 18756/65. Heading B3R. [Also in Division C7] In submerged arc welding nickel steels (e.g. 9% Ni) a weld deposit comprising 32-45% nickel, 10-25% molybdenum remainder mainly iron is formed using a flux containing molybdenum and a tubular electrode having a nickel sheath and a core including molybdenum. The sheath is approximately twice the weight of the core and the latter consists of molybdenum or ferro-molybdenum and may contain manganese. The granular flux is composed of of 35-55% fluorspar 7-27% rutile 0-5% zirconium silicate 0-5% manganese silicate 0-15% manganese 15-30% ferro-molybdenum 0-5% manganous oxide Specified weld deposits are In two pass welding of # inch plate, with welding grooves on both sides, the work was heated before welding and between passes to 100-120 C.
Patent GB-860305-A (GB)
Title: Tuberculin active peptide
IPC: A61K39/04
Filed: 1959-06-02
Abstract: A tuberculin-active peptide of high purity and potency and capable of giving rise to a uniform reaction is obtained by extracting sterilized bacterial cells of Mycobacterium tuberculosis, especially var. hominis H37RV, with a dilute inorganic or organic acid of r H 1 to 3, neutralizing the extract to a r H of 7.0, adding picric acid to the solution to precipitate the peptide as its picrate and subsequently separating the desired peptide from the picrate.  The acid may be dilute hydrochloric, sulphuric or phosphoric of 0.1 N, or aqueous citric acetic or propionic acid, extraction being at 37 DEG C. for 72 hours.  After filtering and washing with dilute acid, sodium hydroxide is added to r H 7.0, allowed to stand, any precipitate removed and saturated aqueous picric acid added to precipitate the picrate. The picrate is treated with a solution of hydrochloric acid in methanol or ethanol, the insolubles removed and the peptide precipitated by the addition of acetone.  Further purification is obtained by repeating the acid-alcohol treatment. The peptide forms pale yellow crystals containing 15.9% nitrogen; it is a single component of low molecular weight, free from sugar and nucleic acid; soluble in water, methanol and ethanol; a neutral aqueous solution becomes opalescent at r H 8.5 and forms a precipitate at r H 9.0; it is stable on heating to 70 DEG C. for 15 minutes as regards the tuberculin activity.
Patent GB-1388037-A (GB)
Title: Automatic telephone answering machine
IPC: G11B31/00
Filed: 1972-04-24
Abstract: 1388037 Substation equipment ; transistor amplifier oscillator and delay circuits W MULLER 24 April 1972 [3 Dec 1971] 18855/72 Headings H4K and H3T  A telephone answering machine has a first recording unit for providing an answering announcement and a second recording unit for recording a caller's message where the second unit is switched on by circuitry which responds to a control signal (tone) replayed by the first unit after the answering announcement and a second control signal is replayed by the first unit after a closing announcement to cause the machine to reset itself. The schematic diagram shown provides an announcement arrangement 33 and a message recording arrangement 31 which can be connected to line La, Lb through changeover relay 37. The tone required to switch over relay 37 is provided by the amplifier/ oscillator circuit 20 which includes a bridged-T filter circuit 23. Whilst the announcement is being recorded, operation of button 26 causes transistor 25 to conduct to short-circuit resistor 24 and cause the circuit 20 to oscillate. A burst of tone is provided after the answering message and a further longer burst of tone is provided after the closing announcement. When the telephone line is rung circuit 8 causes the line to be looped and answering arrangement 33 to be switched on and the answering announcement read by head 14 transmitted through amplifier 11 to the line. The shorter recorded tone passes through circuit 20 to circuit 30 before contact 29 changes over and causes recording arrangement 31 to operate. The caller's message passes from the telephone line to head 13 and the speech signals also pass through speech switch 34 and timer 35 to maintain arrangement 31 in operation. At the end of the overall time or when silence is received the relay 36 drops contacts 37 to operate arrangement 33 and play the closing announcement. The long burst of tone provided at the end of the announcement causes the rewind/reset arrangement 32 to be operated through contact 29. A switching circuit, Fig. 3 (not shown), is used to provide delayed switching of contact 29 so that the first incoming pulse has decayed sufficiently not to operate circuit 32 when contact 29 is changed over.
Patent GB-363685-A (GB)
Title: Process of and apparatus for the dehydration and electrolysis of hydrated magnesium chloride
IPC: C25C3/04
Filed: 1930-06-20
Abstract: Hydrated magnesium chloride is dehydrated by introducing it in the absence of chlorine into an anhydrous saline melt containing chlorides; the amount of hydrated chloride which is added must be such that the proportion of MgCl2 is always less than that in carnallite.  In a process for obtaining magnesium by electrolysis of a fused mixture of chlorides containing e.g. 50 per cent sodium chloride, 35 per cent potassium chloride, and 15 per cent magnesium chloride, a portion of the impoverished electrolyte is withdrawn to a separate chamber, regenerated with hydrated magnesium chloride up to the proportion stated and returned to the cell.
Patent GB-809586-A (GB)
Title: Process for recovering gaseous fission products from nuclear reactor
IPC: G21C3/04
Filed: 1957-06-14
Abstract: 809,586. Nuclear reactors. DEUTSCHE GOLD-UND SILBER-SCHEIDEANSTALT VORM. ROESSLER. June 14, 1957 [June 28, 1956], No. 18881/57. Class 39(4). Nuclear fuel in a reactor is flushed with a chemically inert gas to remove gaseous fission products, particularly Xe<SP>135</SP>. If the fuel is in cans, these are perforated to admit and discharge the gas, but the flushing process is particularly effective with porous moulded elements comprising metallic materials or oxides, nitrides, carbides or silicides of these materials. The gas is preferably light, e.g. helium, neon, argon, to facilitate separation and may be.the heat exchange medium. The fission products may be recovered from a part of the circulating gas, using a gas centrifuge, selective absorption on activated carbon or by gas diffusion. The Xe<SP>135</SP> recovered may be available for use.
Patent GB-402518-A (GB)
Title: Improvements in and connected with cattle trucks, farmers' wagons and the like
IPC: B60P1/43
Filed: 1932-07-05
Abstract: 402,518. Vehicle fittings for loading. LAKE, A. H., 88, Barrington Street, Tiverton, Devon. July 5, 1932, No. 18936. [Class 78 (iv).] A cattle truck, farm wagon, &c. is provided with a rear ramp a which is housed when not in use in guides g, h beneath the vehicle floor and may be pulled out and swung down about the outer end of the guides without detachment. The guides are spaced apart approximately the width of the longitudinal l of the chassis, and the ramp may have folding side portions c, d. As shown, the ramp is fitted with a pivoting bar f with the ends f<2>, f3 sliding in channel guides and abutting against stops at the outer ends of the guides. The ramp is also supported by rollers n on a shaft o journalled in the longitudinals l, and a pivoted retaining catch q is provided on the underside of the ramp to engage the bar o.
Patent GB-298689-A (GB)
Title: Improvements in or relating to pencils, penholders and the like
IPC: G09F3/00
Filed: 1927-07-18
Abstract: 298,689. Anglo Pencil Co., Ltd., and Smith, M. July 18, 1927. Transferring designs.-Lettering, designs, and the like are produced on the surfaces of pencils, penholders, and like articles by means of transfers, and adhesion is secured by two separate applications of gelatine or gelatine solution or a substance having similar properties. The pencil or the like is first treated to produce the desired colour. The duplex paper backing is first removed from the transfer by soaking, and the printed face is coated with a warm solution of gelatine or the like. The transfer is then applied to the pencil, the paper support is removed, and the pencil is dipped in gelatine or like solution and finally varnished. According to the Provisional Specification, the pencil or the like is first coated with a varnish and then with gelatine; alternatively, the gelatine coating is applied after the transfer has been affixed.
Patent GB-734553-A (GB)
Title: Apparatus for scarfing metal workpieces such as billets, slabs and the like
IPC: B23K7/06
Filed: 1953-07-08
Abstract: 734,553. Removing surface metal by blowpipes. UNITED STATES STEEL CORPORATION. July 8, 1953 [March 17, 1953], No. 18990/53. Class 83 (4). In a billet scarfing apparatus comprising a horizontally adjustable member, a trolley is movable therealong by power means on the trolley and a carriage carrying a torch vertically adjustable by a power means on the carriage is movable on the trolley by a further power means on the trolley in a direction normal to the trolley movement. A wheeled gantry 4 is driven along rails 6 by a motor 42 on the gantry through chain belts 52. A wheeled trolley 10 is driven along a pair of rails 12 carried by the gantry by a reversible fluid motor 88 which drives a shaft 146 carrying trolley wheels 1421. A wheeled carriage 16 which carries the torch 22, supplied with air, oxygen, &c., from hoses Y. is moved along rails 19 on the trolley bv a horizontal double-acting fluid pressure cylinder 114 and piston 158. The torch is supported from the piston of a double-acting fluid pressure cylinder 128 carried by the carriage. The trolley, carriage and torch are actuated and controlled by a hydraulic system, Fig. 5. Oil for the system is pumped by a pump 58, driven by a motor 60, from a tank 56 carried by the trolley. The oil flows to a main valve 68 from which it is directed to valves 86, 104 and 110. The valve 86, controlled by a lever bar 98 operated by a workman on a seat 176 on the trolley, supplies oil to the motor 88 to drive the trolley. The valves 104 and 110, controlled by hand levers 126 and 140 respectively, supply oil to the cylinders 114 and 128 to move the carriage and to vertically adjust the torch 22. The gantry may be replaced by a cantilever support.
Patent GB-1472082-A (GB)
IPC: C07C239/00
Filed: 1974-04-23
Abstract: 1472082 Oxalyl bis-(hydrocarbyl carbazates) UNIROYAL Inc 23 April 1974 [26 April 1973] 18992/75 Divided out of 1472081 Heading C2C [Also in Division C3] Oxalyl bis-(hydrocarbyl carbazates) are prepared in Examples I-IX, wherein the hydrocarbyl is ethyl, isopropyl, isobutyl, 2-ethyl hexyl, benzyl, n-butyl, n-propyl, phenyl and cyclohexyl respectively, by reacting oxalyl dihydrazide with a haloformate ester in the presence of an acid acceptor viz, ammonium hydroxide or sodium carbonate and in a solvent viz. water or ethanol.
Patent GB-332034-A (GB)
Title: Electrical resistance devices
IPC: H01C7/00
Filed: 1929-06-20
Abstract: 332,034. Pender, H. June 20, 1929. Resistance coatings - A thin fibre 12 coated with carbon or like material, such as that described in Specification 254,894 fits closely in a tube 10 of porcelain or like material furnished with airtight conducting end caps 13 supporting the ends of the fibre. The caps 13 are of high melling solder or similar alloy and are moulded over the ends of the tube 10. Terminals 14 may be moulded into the caps 13. Two or more resistances may be enclosed in separate passages with tube 10.
Patent GB-882568-A (GB)
Title: Methods and apparatus for induction heating butt welding
IPC: B23K13/00
Filed: 1959-06-04
Abstract: 882,568. Welding by pressure. MAGNETIC HEATING CORPORATION. June 4, 1959 [July 2, 1958], No. 19182/59. Class 83 (4). In butt welding the opposed edges of two metal pieces with the weld upset occurring at least mostly on one of the surfaces of the welded zone, the pieces are held edge to edge under pressure while inducing current in zone of the abutting edges, the current frequency and power density being chosen to heat the edges to welding temperature throughout with the temperature adjacent said one surface being higher than the temperature adjacent the opposite surface, the heat is maintained until the edges are softened such that the pressure moves the pieces towards each other into welded relation and then the heating is discontinued or reduced before the metal at said opposite surface becomes substantially displaced from such surface. A pair of pipes 10, 11 are held in split clamps 13, 14 having flanges 15, 16 between which two or more hydraulic or gas pressure piston and cylinder devices 17, 18 are arranged to pull the pipe ends together. A single-turn fluid cooled split induction coil 20 connected to a high-frequency generator 34 by leads 21 is arranged about the pipe ends which are surrounded by a two-part insulating chamber 22, 23 having conduits-24, 25 for flowing inert gas e.g. argon therethrough. A micro switch 30 on the flange 15 is engaged by the actuating rod 31 on the other flange 16 when the pipe ends are softened and are caused to move together, the switch actuating a relay 33 for cutting off the current to the coil. With seven-inch-diameter pipes of “ inch wall thickness, a 40 kw. generator is used to supply a current at 9600 cycles per second for 55-60 seconds with a pressure of 3000 lb. per square inch between the ends. The outer portions of the walls are 100-200‹ F. hotter than the inner portions when heating is discontinued and the resulting weld is as shown in Fig. 2. With teninch pipes of ¢-inch wall thickness using a 30 kw. generator the heating period is 240 seconds. The current may be of frequency lower than 9600 cycles per second or may be up to 100,000 cycles per second and the heating period may be timed manually or by an automatic time switch. The pipes being welded may be of steel, aluminium or their alloys and strips may be welded by the method of the invention.
Patent GB-739578-A (GB)
Title: Improvements relating to ball or like grinding mills
Inventor: FRANKERT OTTO PEDER
IPC: B02C17/22
Filed: 1954-06-30
Abstract: 739,578. Ball mills. SMIDTH & CO. AKTIESELSKAB, F. L. June 30, 1954, No. 19225/54. Class 59. A ball or like grinding mill having an inlet at one end for the material to be ground and an outlet at the other end for ground material is provided with a lining which over part only of the axial length of the mill or a grinding chamber thereof tends to classify the grinding bodies by bringing about movement of the smaller grinding bodies in one direction and of the larger grinding bodies in the opposite direction. In the mill shown in Fig. 3 in which a grate 5 is provided to retain the grinding bodies, accumulation of the smallest grinding bodies at the grate is prevented by providing a lining part 6 which has no classifying action. In a modification, Fig. 5 (not shown), parts of the lining next to the grate exert a classifying action opposite to that of the remainder. In the mill shown in Fig. 7 which comprises two chambers 8, 9 separated by a grate 10, the major portion of the lining in the chamber 8 is provided with helical projections which classify the grinding bodies according to size but the lining part 11 is provided with projections parallel to the mill axis which have no classifying action. The chamber 9 is provided with helical projections, those at the outlet end being of opposite hand to those at the inlet end. In a modification, Fig. 8 (not shown), an air-swept mill is provided with frusto-conical rings at the inlet and outlet ends which are separated by a central plain cylinder lining part. In another modification, the classifying lining is omitted over the part of the mill or grinding chamber nearest the inlet.