baber/WOPTO huggingface dataset:
Patent GB-638949-A (GB)
Title: Improvements in or relating to a carry type earth moving scraper
IPC: E02F9/28
Filed: 1948-02-25
Abstract: 638,949. Bowl-type earth scrapers.' RUSTON-BUCYRUS, Ltd. Feb. 25, 1948, No. 5599. Convention date, April 3, 1947. [Class 68 (i)] In a bowl-type scraper the bowl 27 is aided in its movement from and to the dumping position by torsion means. The bowl at its forward edge adjacent the digging blade 26 is secured to a sleeve 50 which rests in a suitable seat 51 formed at the back of the digging blade. Concentrically mounted within the sleeve is a bar 33, preferably hexagonal, the bar being keyed to the sleeve at 52 and at one end being freely supported in a bearing 54 located in one of the side walls 25 of the scraper. The other end is similarly supported at 56. Formed on the bearing 56 is an arm 58 so that, as the bowl rotates to the damping position about the axis of the bar 33, the arm moves'until it engages a stop 80 on the side wall 25 so that further movement of the bowl causes the bar 33 to be stressed, which stressing always acts so as to return the bucket when it is freed from the damping position. In a second embodiment, the bar 33 is initially stressed in such a direction that, besides urging the bucket to return from the dumping position, it urges it to the dumping position. In a third embodiment, the sleeve 27 is keyed at its centre to an inner concentric tube, which in turn is keyed to the bar 33 at the end remote from that at which it is secured to the side wall 25 of the scraper frame. Various combinations of rods and tubes may form the torsion means. Specification 562,181 is referred to.
Patent GB-678955-A (GB)
Title: Improvements in electric-arc stud and the like welding apparatus
IPC: B23K9/20
Filed: 1950-03-06
Abstract: 678,955. Welding by pressure. BOWLER & SIDNEY, Ltd., and BUTTERFIELD, T. L. H. Feb. 20, 1951 [March 6, 1950], No. 5604/50. Class 83 (iv). In an electric arc welding gun comprising a spring bellows reaction device forming an integral part of the gun and connected with a stud chuck spindle so that the device is energized by forcible application of the gun to the workpiece, means are provided to regulate the outward movement of the spindle under the reaction of the device so that the movement is first slow and is then sudden to drive the stud home. In an embodiment the gun has a body 1 with an extension 3 in which slides the stud chuck spindle 10 and a support spindle 27 for a foot 28. The spindle 10 supports a chuck 15 and carries an adjustable nut 13 below the extension 3 which limits the inward movement of the spindle 10. A spring bellows 5 is secured to a disc 9 on the spindle 10 and to a disc 6 fixed in the body 1 and provided with an aperture 19 which closely fits a spindle 21 extending from the disc 9. A further bellows 4 is secured to the disc 6 and to a member 8 engaging a coil spring 30 and having a recess 55 in which is engaged the upper end of the spindle 21 which is provided with passages 22, 23, 24. The bellows 4, 5 are filled with liquid. In operation the foot 28 is adjusted level with a fusible tip 18 on the stud 16 and with the foot 28 and stud 16 on the work a handle 2 is depressed. This movement compresses a spring 33 above the spindle 27 and compresses the bellows 5 to expel liquid therefrom into the bellows 4 through the aperture 19 and passages 22, 23, 24, which expands as the member 8 moves upwards to compress the spring 30. The nut 13 limits the movement and the passage 23 is finally located above the aperture 19. A lever 36 is pressed to pivot a clutch 32 which grips the spindle 27 and locks it relatively to the body 1. A switch 39 is actuated to send welding current through the stud 16 and work, thus fusing the tip 18 and starting an A.C. The unsupported stud 16 then moves slowly downwardly under the action of the spring 30 and bellows 4, 5, liquid in the bellows 4 slowly returning to bellows 5 through the aperture 19. After a slow movement the passage 23 becomes uncovered and liquid flows freely into the bellows 5 and the stud 16 is rapidly thrust into the work. A valve device comprising a two-diameter spindle extending from the disc 9 and through the aperture 19 is employed in a modification. The foot 28 may be dispensed with and the gun held in a static lever-operated machine. According to the Provisional Specification the welding current may be interrupted by a limit switch operated by the downward movement of the chuck spindle or by the drop in arc voltage. Specification 584,109 is referred to.
Patent GB-279694-A (GB)
Title: Improvements in and relating to the bleaching or decolorising of clay or other minerals
IPC: C01F7/26
Filed: 1927-02-28
Abstract: 279,694. Parker, T. W., and Dartmoor China Clay Co., Ltd. Feb. 28, 1927. Aluminium silicate; silicates in general.-Clay and other minerals containing iron are bleached or decolorised by treatment with acid, with or without a reducing agent, and with aqueous solutions of soluble salts, the bases of which do not form coloured compounds with non-chromophoric acid radicles, which are not reducing agents, and of which the acid radicles do not form insoluble iron compounds. Salts of polyvalent metals, particularly salts of aluminium, calcium, barium, or magnesium, or ammonium salts may be employed, the use of aluminium sulphate, or sodium, potassium, or ammonium alums is particularly advantageous. The salt may be added to the bleaching acid, or to the water used for washing the treated clay or to both; or be mixed with the clay suspension before the latter is treated: or be formed in situ by addition of a metal, its oxide, hydroxide, or carbonate, to the. bleaching acid, or to the washing water with addition to acid. The water used to wash the treated clay may contain alkali to neutralise any acid remaining therein.
Patent GB-525383-A (GB)
Title: Improvements in or relating to electric fuse contacts
IPC: H01H85/20
Filed: 1939-02-20
Abstract: 525,383. Switch and fuse contacts. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 20, 1939, No. 5610. Convention date, Feb. 19, 1938. [Class 38 (v)] A blade contact 16 at the end of a fuse 12 is received by a fixed clip contact 17 formed of resilient material and is held in position by the engagement with it of a shoe 22 on a screw 21 which passes through an inverted U-shaped yoke 19 hinged at 20 to the fixed contact 17. To facilitate movement into position of the yoke 19 a lip 23 is provided which engages with and presses down the blade contact 16. A modification is described in which, in a similar manner, a round fuse contact is held in engagement with a resilient fixed contact. In Fig. 5, a yoke 19<11> is pivoted to pins 20" which are slidable vertically in a solid fixed contact 17". When the screw 21" presses the contacts into engagement the pins 20" move up and compress spr:ings 26 which provide resilient pressure.
Patent GB-740382-A (GB)
Title: Hone for razor blades
IPC: B24D15/08
Filed: 1953-02-27
Abstract: 740,382. Compound sheet materials. DOWNIE, J. M. May 27,1954 [Feb. 27, 1953], No. 5642/53. Class 140. [Also in Group XXIII] A compound sheet material, for use as a razor blade hone, comprises two plies of plastic 1, 2 of which one at least is transparent, and a ply 3 of paper or of fabric sandwiched between the plies of plastic and bearing advertising matter, letters, numerals or designs, the plies being fastened to one another and having a concave honing surface 4. The plies 1, 2 are preferably thermoplastic and one of them may be translucent or coloured. The edges of the sheet are bevelled. Specification 706,385, [Group XXIII], is referred to.
Patent GB-671825-A (GB)
Title: Improvements in or relating to methods of manufacturing luminescent screens
IPC: H01J29/28
Filed: 1949-03-02
Abstract: 671,825. Luminescent screens for cathode-ray tubes. PHILIPS ELECTRICAL, Ltd. March 2, 1949 [March 5, 1948], No. 5715/49. Class 39 (i). In the manufacture of a luminescent screen coated with a light-reflecting metal layer, an intermediate layer of a metal oxide or oxides is provided. A temporary intermediate layer of material easily'removed by heating, e.g. nitrocellulose, is evaporated on to the luminescent screen, a layer of a metal oxide, e.g. aluminium oxide, silica or boron trioxide, is applied, the screen is heated to volatilize the temporary layer and the reflecting metal layer then formed over the oxide layer. One method of applying the intermediate oxide layer is to oxidize a metal layer in situ, e.g. aluminium, by effecting the heating step which removes the temporary layer, in an oxidizing atmosphere, e.g. air. The oxide layer is preferably less than a quarter the thickness of the metal layer, e.g. it may be less than 0.09 Á. The Specification as open to inspection under Sect. 91, refers to the subject-matter of U.S.A. Specification 2,233,786 in which a layer of boron trioxide is used to seal the granular luminescent screen before coating with the reflecting metal layer. This subject-matter does not appear in the Specification as accepted.
Patent GB-217536-A (GB)
Title: Improvements in or relating to cases for cigarettes or the like
IPC: A24F15/14
Filed: 1923-12-11
Abstract: 217,536. Moulder, W. J. Dec. 11, 1023. Contents, delivering. - Cigarettes or like articles are pressed towards an ejection aperture in a case by a spring 6 which is held in its retracted position by a plate 7 pivoted near the edge of the case and formed with a hook-shaped inner end 9 to engage the spring. A coiled spring 16 holds the plate in engagement with the spring 6 and the outwardly projecting portion 10 of the plate is depressed by the flange of the lid 2 to release the spring 6 when the lid is closed.
Patent GB-199766-A (GB)
Title: Process for the continuous production of low boiling point hydrocarbons from petroleum oils
IPC: C10G9/00
Filed: 1922-02-27
Abstract: 199,766. Hanna, H. W, Feb. 27, 1922. Hydrocarbons, distilling and cracking.-The oils are distilled under reduced pressure and the distillates submitted to a cracking operation, preferably of the kind described in Specification 195,422. In obtaining the distillates, the oil, forced by a pump 3, Fig. 2. is preheated by the vapours and the residual oil in exchangers 5, 11, and is passed in succession through a series of stills 14 maintained under reduced pressure by a pump 82. The vapours pass through exchangers 5, condensers 94, and inspection chambers 17 to collecting chambers 19 from which the condensates are pumped to storage vessels 23. The inspection chambers, collecting chambers, and storage vessels are preferably arranged in duplicate for each still. The distillate is cracked by circulating it, together with a solvent oil of lower boiling-point, through a closed system under suitable temperature and pressure conditions, for example, 745-800‹ F. and 105-120 lb. per sq. in.
Patent GB-917792-A (GB)
Title: Method and apparatus for withdrawing waste gases from a converter
Inventor: HOFF HANS SUITBERT
IPC: C21C5/38
Filed: 1961-02-16
Abstract: 917,792. Metallurgical converters. BETEILIGUNGSUND PATENTVERWALTUNGSGESSELLSCHAFT. Feb. 16, 1961, No. 5802/61. Class 72. A method of withdrawing waste gas from a metallurgical converter comprises collecting the waste gas by means of a water-cooled hood spaced from the mouth of the converter and inducing a flow of gas round the gap between the hood and the converter mouth. As shown, a water-cooled hood 2 is spaced from a converter 1 by a gap 7 and a second hood 3 surrounds the end of the hood 2. A pipe 5 leads to the interior 4 of the hood 3 and a gas, e.g. nitrogen, under pressure supplied through the pipe 5 escapes through a gap 6 between the hoods 2 and 3, or suction may be applied to the pipe 5, in each case air is prevented from entering the gap 7. The waste gas passes through a conduit 8 and the conduit and the hood may be raised by a jack 10. The waste gas may be used as a fuel or for the synthesis of organic compounds.
Patent GB-688134-A (GB)
Title: Improvements relating to automatic control mechanism for gramophone record playing apparatus
Inventor: RAE ALEXANDER JAMES
IPC: G11B17/16
Filed: 1950-03-08
Abstract: 688,134. Automatic gramophones. ELECTRIC & MUSICAL INDUSTRIES, Ltd. March 1, 1951 [March 8, 1950], No. 5812/50. Class 40 (ii). In an automatic record changer having a cycling control disc, a clutch effects engagement of a drive to said control disc when an automatic cycle is to be effected, a cam on said control disc disengages said clutch when the cycle has been completed, and means are provided to maintain rotation of the control disc until said cam has passed its operative position. When the pick-up arm 24 reaches a certain position at the end of a record, a spring-loaded bellcrank 19 is moved clockwise under the influence of a pin 32 on a linkage 26, 27, 28, 29 whereby a pin 16 having a flange 17 supporting a pinion 11, slidably keyed to the turntable spindle 2, is released so that a dog clutch 14, 15 engages the pinion 11 with a free pinion 5 in engagement with the toothed edge of the control disc 6. An automatic cycle is thereby commenced and the dog clutch 14, 15 remains in engagement until a cam 22 on the control disc 6 raises the pin 16. The disc, however, continues to rotate, owing to a raised toothed part 23 of the disc 6 engaging the pinion 11, until the cam 22 is clear of the pin 16. Records are released one by one down the centre post 27 by means of a linkage 34, 35 connected to a pin 33 on the control disc 6. Specification 617,864 is referred to.
Patent GB-769126-A (GB)
Title: Improvements in apparatus for generating high voltage direct current from alternating current
IPC: H02M7/10
Filed: 1955-02-28
Abstract: 769,126. Transformers, rectifying. ROCHAR ELECTRONIQUE. Feb. 28, 1955 [June 21, 1954], No. 5920/55. Class 38 (2). In a voltage multiplier such as is shown diagrammatically in Fig. 1, the capacitors 1, 2 are formed by the conductors 14, 15 and insulation 16 of concentric cables 12 arranged as the secondary windings of a mains supply transformer 9, the conductors 14, 15 acting as half turns to supply heater current to the cathodes of the valve rectifiers 17. The high voltage terminal may be negative, Fig. 2, or positive, Fig. 3 (not shown).
Patent GB-753039-A (GB)
Title: Radar apparatus
IPC: H01Q3/12
Filed: 1954-03-01
Abstract: 753,039. Radar. NAAMLOOZE VENNOOTSCHAP HOLLANDSE SIGNAALAPPARATEN. March 1, 1954 [Feb. 27, 1953], No. 5938/54. Class 40 (7). The Specification describes a radar apparatus similar to that disclosed in Specification 753,038. The claims are directed to the arrangement for obtaining accurate positional information about a particular target wherein the fundamental frequency of the auxiliary scan is equal to that of the main scan so as to provide up and down scanning movements over contiguous overlapping paths. The present Specification des. cribes in addition and with reference to Fig. 6 various ways in which the position of the target with respect to the aerial may be indicated. In Fig. 6a the cathode-ray tube screen is scanned horizontally in synchronism with the variation in elevation angle of the beam and the up and down paths are separated by applying different potentials between the vertical plates. Intensity modulation by the received signals gives bright spots which will be of equal intensity when the median plane of the aerial scan is directed towards the target. Instead of being used for intensity modulation the received signals may be applied to the vertical plates along with the trace separating potentials so that each target gives deflections as shown in Fig. 6b which are to be made equal in height. In a variation the deflections are arranged to extend up and downwards respectively from the same horizontal scan (Fig. 6c, not shown). An elevation and bearing display which is intensity-modulated can also be used (Fig. 6d, not shown). A separate range display is provided. Specification 753,035 also is referred to.
Patent GB-1061291-A (GB)
Title: Improved staircase construction
Inventor: HEATHCOTE FRANCIS WILLIAM LIST
IPC: E04F11/025
Filed: 1963-02-14
Abstract: 1,061,291. Staircases. BROCKHOUSE STEEL STRUCTURES Ltd. May 7, 1964 [Feb. 14, 1963], No. 5948/63. Heading E1W. In a staircase for use in buildings liable to subsidence, each: stringer 10 at each end is capable of limited sliding movement upon a rigidly mounted support bracket 12 or 21 and limited angular movement relative to the support brackets. As shown, the bracket 21 is identical to, but is inverted relatively to, the bracket 12, the brackets presenting a horizontal upper bearing surface 18 adapted to co-operate with a bearing pad 17 carried by the upper end of the stringer 10 and an inclined bearing surface 24 adapted to co-operate with the lower end of the stringer. The stringer 10 is of hollow box section and the back member 26 of the bracket is sufficiently narrow to avoid obstruction of the side walls of the box section in the event of relative angular movement of the stringer relative to the bracket.
Patent GB-149182-A (GB)
Title: Improvements in hose couplings
IPC: F16L19/00
Filed: 1920-02-27
Abstract: 149,182. Armstrong, Whitworth, & Co., Sir W. G., and Wilson, R. W. Feb. 27, 1920. Overlap joints with packing at base of socket; couplings, disconnectible; bayonet joints. - The socket C of a hose coupling has a packing-ring D at the base of the socket and a flange C<2> at the mouth. The front of the spigot E has a projection and a nut F working on a coarse thread has a similar projection. When the nut is screwed up to the front portion of the spigot, the two projections are in line and pass through a groove c<3> cut in the flange c<2>. The projection on the front end of the spigot engages in a groove in the socket, and the nut F is unscrewed until the projection on it is out of line with the groove c<3>. The spring C prevents the nut from moving further into the socket, but for further precaution another groove C<5> may be provided with which the projection on the nut may engage. A split ring E<3> may be provided further to limit the movement of the nut.
Patent GB-1201435-A (GB)
Title: A device for correcting out-of-roundness in pipes
Inventor: OGDEN RONALD
IPC: B21C37/30
Filed: 1968-02-07
Abstract: 1,201,435. Tube expanders. R. OGDEN & CO. (PIPELINE CONSTRUCTORS) Ltd. 5 Feb., 1969 [7 Feb., 1968], No. 6002/68. Heading B3J. [Also in Division F2] A device for correcting out-of-roundness in butt-welded pipes &c. comprises a series of radiating hydraulic rams 10 each carrying an arcuate former 15 to be forced outwards against a pipe-interior by operation of its ram. The rams are returned by springs 25 and are provided with bolts 17a, 17b working in radial slots in guide-plates 24a, 24b. Wheels 19, 20 and a towing ring 23 are provided for moving the device along a pipe from weld to weld, the former being grooved at 28 to receive the weld. Brake pads 32, Fig. 3, on links 30 are applied by a spring 36 for preventing the device from running down a pipe, the brake being released by a lever 39 connected to the links and operated by a wire. Two series of rams may be provided, the formers of which may be staggered and operated together or one series after the other.
Patent GB-124307-A (GB)
Title: Improvements in and relating to Glass Melting Furnaces.
IPC: C03B5/12
Filed: 1918-04-09
Abstract: 124,307. Ghijsen, H. C., and Naamlooze Vennootschap Vitrite Works. April 9, 1918. Delivering molten metal.-In a melting-furnace more particularly adapted for use in filling the bases of electric lamps with molten glass, a continuous stream of metal is maintained by heating a small part only of the raw material, and the quantity required for a filling operation is cut off by a pair of blades and led through a conduit into the base or mould to be charged. The raw material is fed down an inclined surface 3 on to a floor 4, where it is melted by the flame from a burner 9. The stream of molten metal is further heated by a burner 10 and flows to the discharge lip 6 through a narrow channel formed by vertical walls 7. Projections 8 from the roof of the furnace prevent too rapid descent of the raw material, and an inspection opening 12 is provided in the furnace wall opposite the lip 6. The cutter blades 17, 18 are carried by concentric shafts 15, 16 operated at regular intervals from a rotating shaft 28 of the lamp-making machine through a cam groove 27. lever 23, links 21, 22, and arms 19, 20. In their open position the blades are withdrawn into cooling-chambers 30. The lamp bases 31 are carried by a rotating table 32, and the cut-off portions of glass are fed thereto by a guide conduit 33 carried by a pivoted arm 34 connected to a treadle, operation of which moves the delivery end of the conduit out of the path of the lamp bases.
Patent GB-286226-A (GB)
Title: Process for the manufacture of azo-dyestuffs
IPC: C09B35/26
Filed: 1928-02-27
Abstract: 286,226. I. G. Farbenindustrie Akt.- Ges. Feb. 28, 1927, [Convention date]. Disazo dyes yielding fast yellow shades on cotton, viscose silk, or cuprammonia silk are obtained by coupling a sulphonic acid of tetrazotized 4 : 4<1>-diaminodiphenylurea or a derivative thereof with a sulphonic acid of an acetoacetic arylide, or by coupling the tetrazo compound with the acetoacetic arylide and sulphonating the product, or by treating with phosgene a sulphonic acid of a p-aminosulphophenyl-azo-acetoacetic arylide. The following examples are specified. (1) Tetrazotized 4 : 4<1>-diaminodiphenylurea-3 : 3'- disulphonic acid is coupled with acetoacetic oanisidide sulphonic acid in alkaline solution; the product dyes cotton deep yellow and viscose silk golden yellow, and yields a deep yellow lake when precipitated on alumina. (2) The monoazo dyestuff 4-nitraniline-2-sulphonic acid ---> acetoacetic o-chloranilide is sulphonated, the nitro group is reduced, and the product is treated with phosgene. (3) The nitro group of the monoazo dyestuff 5-nitro-2-anisidine-4-sulphonic acid # (alkaline) acetoacetic o-anisidide sulphonic acid is reduced and the product is treated with phosgene.
Patent GB-175197-A (GB)
Title: An improved mechanical device or apparatus for teaching the correct way to use a golf putting club
IPC: A63B69/36
Filed: 1921-02-23
Abstract: 175,197. Kirkham, W. D. S., and Birch, T. Feb. 23, 1921. Golf-practising appliances. - A golf appliance for teaching the correct movement of a putter, niblick, &c. in making a stroke comprises a bar 1 adjustably clamped in supports 2 and acting as a guide for a freely-mounted slide 5 on which is pivoted, by a pin 4, a clamp 7 for securing the golf club.
Patent GB-668964-A (GB)
Title: Formaldehyde conversion
IPC: C08G2/08
Filed: 1950-03-10
Abstract: Paraformaldehyde is made by concentrating an aqueous formaldehyde solution by evaporation under sub-atmospheric pressure at pH 2.9-3.5 until solid paraformaldehyde is formed on cooling the concentrated solution.  The process may be effected in a plurality of stages, the first stage at the lowest temperature. The product is water-soluble. The pH range is maintained conveniently with formic acid.  Preferably the concentration is raised to about 70 per cent at 45-80 DEG  C., the solution being maintained within this range while it has a concentration of 60-70 per cent for less than three hours, and then to above 80 per cent at 70-100 DEG  C., the solution being held within this range for less than an hour, product recovery by cooling then being effected.  The first of these stages may be at 20-100 and the second at 100-200 mms. of Hg.  The concentrated solution thus formed contains 80-90 per cent by weight of the polymer and may be held at above 100 DEG  C., preferably 100-140 DEG  C., for 1/2 -3 hours before cooling so that the product solidifies at a greater rate on cooling.  A temperature of about 110 DEG  C. for about an hour is advantageous for this modification.  The polymer may be isolated by spraying the concentrated solution into a cool zone or by means of a drum drier.  If desired, further drying may be effected, e.g. by hot air treatment at about 160 DEG  F.  Two examples are given in which a 37 per cent formaldehyde solution of pH 3.2 containing 0.024 per cent of formic acid are concentrated according to the preferred processes indicated above.