baber/WOPTO huggingface dataset:
Patent GB-691269-A (GB)
Title: Improvements in or relating to the stabilisation of formaldehyde cyanhydrin
IPC: A61K31/16
Filed: 1950-09-25
Abstract: Formaldehyde cyanohydrin is stabilized by the addition thereto of one or more organic acids having a dissociation constant within the range of from 1.0 X 10-2 to 1.0 X 10-4, e.g. mono- or di-chloracetic, bromacetic, thioglycollic, chlorpropionic, lactic, a -hydroxyisobutyric and sulphanilic acids.  In place of the organic acids there may be used substances which under the prevailing conditions react to form the organic acids such as their acid chlorides which are hydrolysed by water present in the cyanohydrin or mineral acids and salts of the organic acids.  A mixture of organic acids may be used such that when the crude cyanohydrin is distilled one organic acid may be present which is more active in stabilizing the crude material and another which distils over with the cyanohydrin and is better able to stabilize the distillate.  Amounts of from 0.1 to 5 per cent of the organic acids may be used.  Examples are given.  The stabilized cyanohydrin may be used as a solvent for dry spinning processes or the polymerization of vinyl compounds.
Patent GB-1500763-A (GB)
Title: Drive transmission
IPC: F16H15/38
Filed: 1975-05-29
Abstract: 1500763 Variable speed friction gear SUNDSTRAND CORP 29 May 1975 [18 July 1974] 23512/75 Heading F2D A steplessly variable-ratio friction gear comprises rollers 40, 41, 42 contacting toric raceways in opposed input and output discs 20 (21), and each pivoting at 47 on an independent mounting arm 45 permitting precessional and tilting movements, each roller axis having a follower arm 50a engaging a fixed, axially inclined cam slot 170 to direct the roller axis to intersect the main shaft axis D, thereby establishing equilibrium of the rollers in any ratio setting, and each roller mounting arm 45 can turn at 52 on an extensible rod 51 which, at its upper end, has a spherical enlargement 67 urged downwardly by a light fluid leakage pressure against the spherical crown of a piston 66 subject on its under face to control liquid pressure supplied through ports 70, 71 and serving to balance the one-way torque load on the roller mountings, whereby the ratio setting is controlled by the magnitude of the liquid pressure. A shift is initiated by varying the control pressure, thus imbalancing the rollers and causing their tangential precessional movement, causing the arms 50a to pivot in the cam slots 170 so that the roller axes no longer intersect the main shaft axis D, which, in turn, results in the rollers pivoting with their mounting arms 45 about the piston rods 51 to a new ratio setting, this last movement causing the arms 50a to move along the cam slots 170 until the roller axes again intersect the shaft axis D to restore equilibrium. Traction pressure axial loading is provided by fluid pressure acting through a circumferentially arranged group of axial pistons (43, Fig. 1, not shown) and a ball bearing (23) on one friction disc (21).
Patent GB-1125796-A (GB)
Title: Improvements in or relating to methods and apparatus for applying powder coatings to articles
Inventor: WALLIS NEIL RUDOLPH
IPC: B05B7/08
Filed: 1966-05-26
Abstract: 1,125,796. Spray-producers. AEROCOAT S.A. 25 May, 1967 [26 May, 1966], No. 23514/66. Heading B2F. An electrostatic spray producer suitable for coating an article with a powder comprises a hollow member 28 adapted to be rotated by a variable speed motor (33), fig. 2 (not shown), and means (6-10) associated with a cable (36) and arranged to supply a high voltage to the member 28 via the motor (33) whereby an electrostatic field is provided between the member and the article, said member 28 being provided with a plurality of apertures 73, (74), fig. 4 (not shown) through which the powder may be discharged generally axially, and with a plurality of apertures 71 through which the powder may be discharged in a direction substantially at right angles to the axis of rotation of the member. The aperture (74) is circular and the apertures 71, 73 are curved and elongated, substantially all the powder being discharged through the apertures 73, (74) when the member is rotated at a slow speed, and substantially all the powder being discharged through the apertures 71 when the member is rotated at a high speed. Air is supplied to an annular passage 52 in a shroud 27 and is discharged through a plurality of fine holes 53, 54 the axes of which vary with respect to the axis of rotation of the member 28. Perforated rings 58, 60 are located in the passage 52 by springs 65, 66. Separate triggers 14 and 24 actuate two manually adjustable valves, not shown, in the air line to the motor (33) so that the trigger 14 opens one valve, which causes the member 28 to be rotated at a first speed, and the trigger 24 opens the second valve. The triggers also control the supply of air to the shroud and the high potential supply. Hollow articles may be uniformly sprayed by varying the air pressure and the speed of rotation of the member 28. The said member has a central boss 70, a metal insert 63 and a metal washer 64.
Patent GB-632874-A (GB)
Title: Improved manufacture of porous ferrous articles
IPC: C22C33/02
Filed: 1947-08-27
Abstract: 632,874. Powder metallurgy. GENERAL MOTORS CORPORATION. Aug. 27, 1947, No. 23651. Convention date, Nov. 29, 1939. [Class 83 (iv)] Porous ferrous articles substantially free from carbon are made by compacting iron powder with sufficient ferro-phosphorus powder to bring the phosphorus content of the finished article to between one quarter and two and a half per cent by weight, and sintering at a temperature above the melting point of iron-ironphosphide eutectic, preferably between 1950‹ F. and 2100‹ F. The iron powder may be mixed with alloying ingredients such as copper, nickel, chromium, molybdenum, vanadium and the ferro-phosphorus should have a phosphorus content in excess of three per cent by weight. Sintering may be carried out under decarbonizing conditions, and the phosphorus may be added in any desired form.
Patent GB-1287398-A (GB)
Title: Improvements in or relating to lighting means
Inventor: BARNARD DOMINIC PAUL EDMUND
IPC: F21L14/02
Filed: 1970-05-15
Abstract: 1287398 Inspection light SMITHS INDUSTRIES Ltd 14 May 1971 [15 May 1970] 23673/70 Heading F4R [Also in Division H2] A light which may be used stroboscopically or as an inspection light has a moulded plastics casing 1 in two parts 4 and 6 welded together. A transparent plastics window 5 is retained by plastics support 10 which carries a neon discharge tube 15 and has a metallized parabolic reflector portion 12. Adaptors 21, 22 are provided for the high tension leads 17 so that the light can be inserted in the lead of a vehicle sparking plug.
Patent GB-1181247-A (GB)
Title: Improvements in or relating to Photographic Light-Sensitive Film
IPC: G03C3/00
Filed: 1967-05-22
Abstract: 1,181,247. Photographic film. FUJI SHASHIN FILM K.K. May 22, 1967 [May 27, 19661, No.23735/67. Heading G2A. A film-strip comprising a light-sensitive emulsion layer 2 on a support layer 1 has a coating 3 of opaque material along the edges, to exclude unwanted light which may cause fogging. Examples are given of suitable opaque materials.
Patent GB-879817-A (GB)
Title: Improvements in vapour generators
Inventor: EVANS RICHARD HENRY
IPC: F22B29/06
Filed: 1959-07-10
Abstract: 879,817. Tubulous furnace walls. BABCOCK & WILCOX Ltd. July 11, 1960 [July 10, 1959], No. 23738/59. Class 51 (1). The walls of the upper part 22 of the hopper bottom of a vapour generator furnace lined with horizontal tubes all slope downwardly and inwardly at the same inclination, and in the lower part the front wall slopes outwardly at the same inclination, the rear wall continues downwardly and inwardly before sloping outwards and the side walls continue vertically downwards. The upper part 22 of each wall of the hopper bottom is lined by contiguous tubes 20, connected by tubes 40 perpendicular to the wall to a collector 32. The lower part 25 of the front and rear walls are lined by finned tubes 20 spaced apart so that horizontal tubes 36 leading from a distributer 30 can be arranged in contact. The lower part of the side walls are lined by contiguous tubes. Groups of tubes may form sinuous panels, or each tube may extend half-way round the hopper bottom, Fig. 4. In this embodiment the connections between a distributer 56 and tubes in the lower part of the hopper bottom are horizontal, and horizontal tubes connect the tubes in the lower part to vertical tubes 58, 60, connected by tubes 59, 61, perpendicular to the plane of the wall of the upper part to corresponding tubes in the upper part of the hopper bottom. These tubes are connected to an upper collector 66 by tubes 62, 64, perpendicular to the hopper bottom wall. In a modification, Fig. 6, horizontal tubes connect the tubes 78, 82 forming the end loops of a sinuous tube group with vertical tubes, alternate vertical tubes leaving or entering opposite sides of a distributer 74 or collector 84 respectively. The arrangements enable all the horizontal tubes forming the hopper bottom walls to be drained through drainable distributers or collectors, and the use of finned tubes or studded tubes with refractory packing is avoided over the greater part of the hopper bottom walls. Specifications 870,735 and 877,116 are referred to.
Patent GB-751447-A (GB)
Title: Improvements in the production of lake pigment dyestuffs
IPC: C09B29/20
Filed: 1954-08-16
Abstract: Lake pigment dyestuffs are made by coupling at least one diazotized 2 - amino - benzene sulphonic acid which has at least one halogen atom and/or at least one nitro group in the benzene nucleus with at least one 2, 3-hydroxynaphthoic acid arylide and laking the resultant dyestuff with salts of polyvalent metals. Specified sulphonic acids are 4 - chloro-, 3,4 - dichloro-, 3 - nitro and 3 - nitro - 4 - chloro - 1 - aminobenzene - 6 - sulphonic acid and, 2 - chloro - 4 - amino - 1 - methylbenzene - 5 - sulphonic acid and 2 - chloro - 5 - amino - 1 - methylbenzene - 4 - sulphonic acid.  Specified coupling components are the anilide 2 - methoxyanilide, 2,4 - dimethoxy - 5 - chloroanilide, nitroanilides and chloroanilides of 2,3 - hydroxynaphthoic acid.  Alkaline earth metal and manganese salts are mentioned for forming lakes.  Mixtures of diazo and coupling components and laking salts may be used.  Red or red - yellow pigments are obtained.  Examples are provided illustrating the preparation of lakes from certain of the above components salts of calcium and manganese being used for lake formation and additionally the 3,4 - dimethoxy - 5 - chloro - and 2 - methyl - anilides are used as coupling components.
Patent GB-1299042-A (GB)
Title: Alloy
IPC: C22C49/08
Filed: 1971-04-19
Abstract: 1299042 Casting processes and machines EUROPEAN ATOMIC ENERGY COMMUNITY 19 April 1971 [12 March 1970] 23766/71 Heading B3F [Also in Division C7] An alloy consisting of 30-50% tantalum, up to 1% impurities, the balance being nickel, contains fibres or lamellµ of Ni 3 Ta preferably having the same orientation, and may be produced by moving a graphite crucible 6 containing the alloy components 9 either in vacuo or in an inert atmosphere through a heating zone 11, and then through a cooling zone of horizontally disposed water sprays 13.
Patent GB-802887-A (GB)
Title: Improvements in grain bin stanchions
IPC: B63B3/68
Filed: 1957-07-26
Abstract: 802,887. Grain bin stanchions. ALUMINIUMWALZWERKE SINGEN G.m.b.H. July 26. 1957 [July 26, 1956], No. 23807/57. Class 113. A grain bin stanchion for the intersection of two partition walls or of filling shafts with partition walls in the hold of a cargo vessel comprises an extruded section of aluminium alloy with four longitudinal grooves 1, 2, 3, 4 in pairs open in opposite directions, each wall of the grooves presenting a rib or flange 5 directed towards the opposite wall of the groove in order to form supports for partitioning elements.
Patent GB-634692-A (GB)
Title: Improvements in or relating to strip feeding apparatus for writing and imprinting machines
IPC: B41J15/16
Filed: 1947-08-28
Abstract: 634,692. Typewriters &c. STANDARD REGISTER CO. Aug. 28, 1947, No. 23895. Convention date, Dec. 11, 1946. [Class 100 (iv)] A device for advancing continuous strip stationery past a recording position comprises strip feeding means simultaneously engaging the strip at relatively spaced points in advance of and beyond the recording position, and means for adjusting the longitudinal tension of the strip intermediate the relatively spaced points. As shown in Fig. 2, the strip 5 is formed into a loop 5a passing around the platen 6 of a typewriter or like machine and so that it engages each side of pin feed wheels 18 on a shaft 11 driven from the platen by gearing 8, 9, 10. The shaft 11 is journalled in a pair of plates 12 pivoted about the shaft of the last gear 9 and adjusted for varying the distance between the wheels 18 and the platen by a pair of adjusting screw assemblies 14-17 removably connected to the side frameworks 3a, and which adjusts the tension in the strip. The frameworks 3a are removably attached to side-plates 3 by a pair of latches. Each wheel 18 may be axially adjusted on the shaft 11 and for this purpose a screwed hub 27 thereon, Fig. 4, engages a threaded sleeve 23 rotatable either directly on a collar 21 or on a member 39 rotatably secured to the collar. The collar 21 has a latch device 31 which may be hinged and engages with one of a series of notches 20 in the shaft 11 to coaxially locate the wheel 18; the sleeve 23 is rotated on its thread to effect a final adjustment. Spring-pins 23a on the sleeve engage depressions in the part 39, or the collar 21, if part 39 is not used, to retain the sleeve in adjusted position. A pair of guide fingers 35 are fitted to co-operate with each wheel 18 and are hingedly mounted so they may be swung from an inoperative position, as shown in Fig. 4, into operative position in which the fingers 35 engage the strip; a slot 37 allows pins 19 of the wheels 18 to pass through the finger. Each pair of fingers co-operating with one edge of the strip are connected together by . a spring 38 holding them either in the operative or inoperative positions. Specification 408,125 is referred to.
Patent GB-460667-A (GB)
Title: Improvements relating to the locking of nuts and bolts and like screw threaded elements
IPC: F16B39/24
Filed: 1935-08-27
Abstract: 460,667. Washers. PENTIN, P. A. Aug. 27, 1935, No. 23967. [Class 89 (i)] Nuts are locked by a split ring washer 4, one of the free ends of which is formed with an up turned end forming a pawl 6 which co-operates with ratchet-teeth 8 cut in the bearing-face of the nut 7 to lock the nut in position. The pawl 6 is further provided with a radial tooth which engages with a longitudinal groove 3 in the bolt to prevent relative rotation of the washer and the bolt.
Patent GB-1246851-A (GB)
Title: Chromising ferrous metal substrates
Inventor: VESSEY CLIFFORD ALFRED
IPC: C23C10/42
Filed: 1968-02-09
Abstract: 1,246,851. Chromizing ferrous surfaces. ALBRIGHT & WILSON Ltd. Feb. 10, 1969 [Feb. 9, 1968; May 20, 1968], Nos. 6646/68 and 24029/68. Heading C7F. A ferrous substrate is chromized by forming an adherent porous layer of chromium which also contains an element which reacts readily with oxygen, e.g. Al, Si, P, V, Ti, Ta, Mo, and Nb, and then heating in the presence of an anhydrous halide which may be fluorides of Al, Mn, Ni, and Co, chlorides of Mn, Ni, and Co, ammonium chloride, and the chlorides, fluorides, bromides and iodides of Na, and K. The chromium may be applied in powdered form and then rolled. The halide may be applied as a solution or a powder.
Patent GB-865958-A (GB)
Title: Copper-zirconium alloys
IPC: C22C9/00
Filed: 1957-07-30
Abstract: A copper alloy having high electrical conductivity and good resistance to softening at high temperatures consists of oxygen-free copper and an amount of zirconium ranging from 0.003% up to the maximum amount retainable in solid solution in the said copper at a temperature between 700 DEG C and 1000 DEG C.  The alloy may be solution treated in the range 700 DEG C to 1000 DEG C to form a single phase and then precipitation hardened in the range 300 DEG C to 600 DEG C. In between the heat treatments the alloy may be quenched and cold worked.
Patent GB-1199772-A (GB)
Title: Improvements in or relating to Electric Wall Box Units and the like
Inventor: ALLDRITT JAMES CYRIL
IPC: H02G3/14
Filed: 1967-05-24
Abstract: 1,199,772. Switch cases. BLOXWICH CONDUITS Ltd. 16 Nov., 1967 [24 May, 1967], No. 24114/67. Heading H1N. A wall box has a bracket 20 swivellably secured to its base 11, by a tubular rivet 30, and is provided with threaded apertures 25 for receiving screws (54) to secure a lid (50) to the box. Bracket 20 can swivel about rivet 30 so that, for a vertically mounted box, bracket 20 can be horizontal or vertical depending on whether the box receives a switch or switch and plug socket, or a plug socket only. Also, swivelling of the bracket allows the lid to be correctly mounted when the box is crookedly mounted in the wall. A washer (40, Fig. 6) may be disposed between the base and bracket. The box also has cable entry apertures (14), 15, apertures 17 (16) for receiving screws for fixing to a wall, earthing terminals (31, 32, 33, Fig. 2) for clamping earthing conductors. An earthing terminal (such as 34) may be connected to the bracket (at 28, Fig. 5). The box and lid may be metal or plastics.
Patent GB-994222-A (GB)
Title: Improvements in or relating to rolling mills
IPC: B21B31/22
Filed: 1962-06-22
Abstract: 994,222. Rolling. UNITED ENGINEERING & FOUNDRY CO. June 22, 1962 [July 14, 1961], No. 24141/62. Heading B3M. A rolling mill includes an insert element placed between the roll adjusting means and an adjustable roll, the element being spaced from and supported by the adjusting means in its operative condition. Two insert elements 26 and 27, Fig. 1, are situated between screws 19 and 20 of the mill screw-down and the chocks 17 and 18 of an upper back-up roll 15. Hydraulic balancing apparatus 24 is supplied for the roll 15. Each insert element comprises a base member 29 abutting a chock 17 or 18, a block 33, separated from the number 29 by a thrust bearing and located to it by a boss 35 having a bushing 36, and a block 37 abutting the screw, the blocks 33 and 37 having coacting spherical surfaces. A cartridge 28 surrounds each element while hangers 46 are adapted to support the element. For shifting the insert elements for a roll change, for example, each screw is raised and a collar 38 in each screw engages the edge of an aperture 44, Fig. 4b, in a plate 41 which extends between the screws, and supports hydraulic cylinders 51. The plate 41 is thus lifted and consequently the hangers 46 are raised, the insert elements then being free to be moved by pistons in the cylinders acting on the outer hangers 46.
Patent GB-757006-A (GB)
Title: Improvements in or relating to stationary dry powder fire-extinguishing systems
IPC: A62C13/00
Filed: 1954-08-19
Abstract: 757,006 Fire-extinguishing. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. Aug. 19, 1954 [Aug. 21, 1953], No. 24156/54. Class 47 In a dry powder fire-extinguishing system, powder is ejected from nozzles 9 or 22 each associated with a separate powder container 8 or 21 by gas supplied under pressure from cylinders 10 or 17. The upper system is controlled by shut-off valves 13, 14 which may be operated manually or by a detector 23. The nozzles 9 may be fitted with rupture discs. The lower system is controlled by fusible elements fitted to the nozzles 22.
Patent GB-756444-A (GB)
Title: Improvements relating to electric circuits for producing rectangular waveforms
Inventor: JOHNSON ANTONY BEVIS
IPC: H03K5/08
Filed: 1953-09-02
Abstract: 756,444. Automatic waveform control systems. SAUNDERS-ROE,Ltd. Sept. 1, 1954 [Sept. 2, 1953], No. 24239/53. Class 38 (4). [Also in Group XL (c). Apparatus for producing from an input waveform a pulse train of which the mark to space ratio is substantially constant comprises a circuit to which the input waveform is applied so that when its amplitude exceeds a pre-determined level the mark portion is generated and a discriminator responsive to the mark to space ratio which varies the pre-determined value automatically to maintain the ratio constant. The Fig. shows a circuit for generating a pulse train 3 from an input wave 5 in which the wave 5 is applied to a clipper stage 11 and then to further amplifying stages 12, 13. The output 3 from stage 13 is applied to a discriminator 2 comprising biased reversely connected diodes 21, 22 the outputs from which are combined so that the bias applied to clipper 11 has a component which varies in dependence upon the mark/spare ratio of the waveform 3 and in such a direction as to maintain this ratio substantially constant irrespective of changes in the input waveform 5. A D.C. amplifier may be included between the discriminator 2 and the input to the clipper stage 11. The circuit may be used in an apparatus for measuring the phase difference between two input waveforms.
Patent GB-1280015-A (GB)
Title: Improvements in or relating to tensioning devices
Inventor: KLIMEK NORBERT
IPC: G06K13/26
Filed: 1969-05-13
Abstract: 1280015 Feeding webs ENGLISH NUMBERING MACHINES Ltd 1 May 1970 [13 May 1969] 24258/69 Heading B8R [Also in Divisions D1 and F2] A spool 1, from which wire or tape is unwound, rotates, also rotating a shaft 2, a bush 18, a plate 17 keyed to the shaft, and a P.T.F.E. friction disc 16, which is urged by an adjustable spring 21 against a stainless steel disc 4, the disc 4 being permitted to rotate, relative to a housing 3, through a limited angle, until a pin 11 fixed to the housing meets the end of a slot 12 in the disc, such rotation being resisted by a coil spring 7, one end 9 of which is fixed to the housing, the other end 8 being fixed to the disc. Rotation of the bobbin may thus commence before frictional resistancs between components 4 and 16 is overcome, and withdrawal is therefore more smooth. In an alternative embodiment the disc 16 is not rotatable, and pin 11 and end 9 of the spring rotate with the spool.
Patent GB-228587-A (GB)
Title: Improvements relating to presses for cutting, drawing and shaping articles composed of sheet metal
IPC: B21D37/08
Filed: 1923-10-01
Abstract: 228,587. Hardman, F. Oct. 1. 1923. Hollow-ware.-Perforated lids are made from sheet metal, cardboard, &c. by tools which cut out, shape, and perforate them at one operation. The sheet j<1>, Fig. 8, is fed over a lower tool comprising a fixed cutter B<1>, fixed punches D<2>, a male cupping die C', which may have a small free movement limited by a set screw C<7> and slot C
, and a pressure ring E<1> held up by a rubber buffer F acting through rods f<5>. The upper tool comprises a female cupping die H' having a cutting edge h<1>, a perforating die K<1> and ejector rods k<2> normally held up by a spring m<3> but adapted to be operated, when the upper tool rises, by a lever m<5> and adjustable stop (not shown). When the upper tool moves down a circular or other blank is cut out, cupped, and' perforated. On the return movement the blank is stripped from the punches D<2> by the die C<4> and pressure ring E<1>, then from this die when' it is arrested by the screw C<7> and finally from the die H<1> by some of the rods k<2>, the others serving to eject the punchings. Both punchings and lids may be blown into a receptacle by air blasts. The tools are preferably arranged in a press working in an inclined direction. A pad P, Fig. 7, saturated with lubricant may be placed between the die C<4> and its support C in order to lubricate the punches.