baber/WOPTO huggingface dataset:
Patent GB-231087-A (GB)
Title: Improvements in vehicle wheels
IPC: B60C7/14
Filed: 1924-09-30
Abstract: 231,087. Schoeke, M. Sept. 30, 1924. Spring wheels--Relates to wheels of the type in which coiled springs are arranged between a channel-shaped rim and the wheel felloe, the inner ends of the springs being secured to through bolts connected to the rim sides and the outer ends of the springs being connected to the felloe. According to the invention means are provided for cushioning road shocks, for making the wheel dust-proof, and for detachably fitting the rubber tyres. A two-part channel rim b, Fig. 1, is bolted to a disc a which forms the wheel centre. Helical springs c, coiled in pairs alternately in opposite, directions, are secured at their outer ends by plates d and bolts d<2> to the rim b, and at their inner ends to the sleeve e of, a bolt f passing through side-plates g<1>, g<2> A channel-shaped rim h is secured by spaced bolts i, passing through the side-plates g<1>, g<2> and through a ring k which detachably secures the rubber tyre l to the wheel. The plates g<1>, g<2> extend inwardly beyond the wheel felloe and are formed with annular grooves g' to hold packing g<4> in close contact with the disc to render the wheel dust-proof. In a modification, the wheel is formed of cast metal, preferably of aluminium, the springs are in the form of bent rods, and the packing rings are held in grooves in the wheel centre, the side-plates sliding over the packing. In the form shown in Fig. 3, groups of springs are equally spaced round the wheel, each group comprising oppositely curved springs between which is arranged a shockabsorber, formed by forked brackets m secured to the inner face of the wheel rim, and lugs n secured to the felloe and free to slide between the forks of the brackets. Within each lug is a rubber ring o secured to the bracket m by a pin. The wheel may be fitted with a splash-guard, comprising a conical rubber ring detachably bolted to the wheel.
Patent GB-1375511-A (GB)
IPC: H01G4/22
Filed: 1973-05-15
Abstract: 1375511 Capacitors McGRAW-EDISON CO 15 May 1973 [19 May 1972] 23050/73 Heading H1M In an impregnated wound capacitor having plastics strip dielectric material, at least one electrode foil has deformations consisting of indentations in one surface with corresponding projections on the other to assist impregnation of the roll. As shown in Fig. 10, a roller 53 has pyramidal projections formed by two sets of spiral grooves at right angles in its surface, and this is brought to bear on the supply roll of electrode foil during the winding process to provide the deformation. Preferably both electrode foils are deformed (Fig. 5, not shown). The deforming roller is effective through up to 50 layers of foil on the supply roll, providing indentations of varying size such as 65A, 66A, 67A (Fig. 5), some of which, e.g. 67A may form pin-hole perforations. The impregnant may be chlorinated diphenyl containing an epoxide scavenger, and the dielectric may be polypropylene.
Patent GB-657827-A (GB)
Title: Improvements in or relating to the manufacture of organic acid esters of cellulose
IPC: C08B3/24
Filed: 1948-09-01
Abstract: Cellulose esters made by the esterification of cellulose with an organic acid anhydride in the presence of a solvent for the ester and of an acid esterification catalyst are ripened, after addition of a neutralizing agent in amount sufficient to neutralize the greater part or the whole of the catalyst, at a temperature of 125 DEG  C. or higher under pressure in the absence of free oxygen, e.g. in an oxygen-free inert atmosphere.  The ripened ester is subsequently precipitated by adding a non-solvent therefor to the solution.  The inert atmosphere may consist of carbon dioxide or nitrogen.  The neutralizing agent may be an oxide, hydroxide or weak acid salt of an alkaline earth metal, magnesium, zinc or aluminium, such as magnesium acetate, magnesium carbonate, zinc acetate, aluminium acetate, calcium acetate, strontium acetate, barium acetate, strontium oxide, barium oxide, strontium hydroxide and barium hydroxide.  Sodium compounds should preferably not be used.  Magnesium carbonate is preferred, since the carbon dioxide evolved displaces any air dissolved in the reaction mixture and forms an oxygen-free atmosphere in contact with the solution.  The amount of free sulphuric acid after incomplete neutralization should not be more than 0.1 to 0.15 per cent by weight of the primary solution.  If desired, an excess of neutralizing agent may be added, up to 0.2 per cent calculated as magnesium oxide.  The addition of ripening water and the process of ripening are carried out as in the parent Specification.  The preferred ripening temperature is within the range 150 DEG  to 185 DEG  C.  The process is applicable to the ripening of cellulose acetate, propionate, butyrate, and to mixed esters such as acetate-propionate, acetate-butyrate and acetate-crotonate.  In an example cellulose acetate prepared by esterifying cotton linters and wood pulp with acetic anhydride in the presence of sulphuric acid and glacial acetic acid is treated with sufficient magnesium carbonate to neutralize the sulphuric acid completely and to give an excess of 0.2 per cent by weight calculated as magnesium oxide. Water is added to react with the acetic anhydride remaining and then additional water equal to 175 per cent of the cellulose is added for ripening.  The solution is transferred by nitrogen under pressure to a manifold communicating with a set of pipes of small diameter in which it is heated to an average temperature of 172 DEG  C.  The time of passage through the pipes is 25 minutes, during which time the cellulose acetate is ripened to an acetyl value of 54.6 per cent calculated as acetic acid.
Patent GB-189529-A (GB)
Title: Improvements relating to furnace firebridges
IPC: F23M3/00
Filed: 1921-08-31
Abstract: 189,529. Jobling, A. Aug. 31, 1921. Addition to 166,957. Fire-bridges. - In a firebridge of the kind described in the parent Specification, the sections c, Fig. 4, and / or the wing plates are locked in position by stops f on the bridge plate d engaging with corresponding slots e in the section c. The stops f are so positioned that the sections c or wing plates have to be moved laterally on the bridge bearer a and back plate d in order to engage with the stops. The faces of the bars forming the fire-bridge sections are rounded. Air passages are formed between the bars and in the top rear edges of the sections c to deliver air forwardly and rearwardly of the fire-bridge.
Patent GB-858014-A (GB)
Title: Device to facilitate the application of paper to ceilings
IPC: B44C7/06
Filed: 1957-07-22
Abstract: 858,014. Paperhangers' tools. ARMSTRONG, K. P. F. July 22, 1957, No. 23144/57. Class 20(2) A device for applying paper to ceilings comprises a tray 10 above which a roller 11 is supported by arms 12 pivoted at 13 and urged upwards by springs 15 or elastic. In use an extensible prop is fitted into a socket 16 and the roller 11 is pressed against the ceiling to retain the end of a length of folded paper L lying on the tray 10. The arms 12 may be telescopic or folding spring blades may replace the arms 12 and springs 15. The roller 11 may have an eccentric axis or may be replaced by a pad. A degree of friction may be given to the pivots 13 by rubber bushes.
Patent GB-915167-A (GB)
Title: Improvements in or relating to containers for fragile articles
Inventor: MOSSE RICHARD WOLFGANG EMIL
IPC: B65D85/32
Filed: 1960-07-01
Abstract: 915,167. Boxes for eggs &c. METAL BOX CO. Ltd. May 30, 1961 [July 1, 1960], No. 23174/60. Class 18. A box 1 moulded from papier mache or plastics has contoured sides 3 and/or 5 to co-operate with sensing devices such as microswitches. Each box is comparted to hold articles of the same grade, the contour being chosen to identify the grade. In the embodiment shown, the contour comprises vertical edges 6, 7 the former being inset with respect to the latter. The particular sequence of operation of the micro-switches determined by the contour causes a machine to select a wrapper for the box which is marked with the grade of articles contained therein.
Patent GB-591868-A (GB)
Title: Improvements in dressing cases
IPC: A45C3/00
Filed: 1944-11-23
Abstract: 591,868. Dressing cases. POWELL, F. Nov. 23, 1944, No. 23286. [Class 18] A dressing case comprises a liner 10, formed of moulded material with parallel sides and with vertical grooves 11, ribs or slots receive removable partitions 12, and a leather or like cover 15 provided with a hinged lid 16 and a slide fastener 19. The lower end of the liner may be closed or open. Where slots are provided they extend completely through the thickness of the material and from the upper or lower edge of the liner through part of the depth, the partitions being shouldered to engage the closed ends of the slots. A separate closure member for the lower end of the liner may be secured in position after the partitions have been inserted from below. Removable solid or hollow blocks may be inserted in the bottom or side of a compartment to reduce the capacity. The lid may be connected to the cover by a leather or other flexible strip 17 and provided with a stiffener 18.
Patent GB-503075-A (GB)
Title: New or improved machine for spreading rivets
IPC: C14B9/00
Filed: 1937-08-26
Abstract: 503,075. Riveting-machines. HICKS, A. C., and SANDHOLME IRON CO., Ltd. Aug. 26, 1937, No. 23372. [Class 83 (iv)] A machine for riveting soft material such as driving belts and designed to avoid bending of the rivet shanks due to the axial pressure employed in spreading their ends, comprises an automatically rapidly reciprocable hammer, means to limit the stroke of the hammer in the direction of the work and means for moving the work progressively towards the hammer as the riveting proceeds. The machine comprises a base 1 supporting a pillar 2 on which is mounted a bracket 3 and a vertical slide 5 carrying an adjustable table 6 on which is an anvil 20 with a face plalte 21. Projecting-through and around the upper part of the anvil are work grippers 22 adapted to be operated by a rod 24 fiom a cam 16. A hammer 39 is pivoted at 40 to the bracket 3 and is formed at one end with a head 44 of hide or like material and at the other end is secured between bearing plates 41, soft flexible pads 42 and plates 43 so as to be operated by a crank 37. The head of the hammer strikes the shaft 45 of a riveting hammer 46 keyed to a sleeve 47 adapted to be rotated by means of a worm 48 and pulley 49. The downward stroke of the hammer 46 is limited by a ring of hard metal 53. The main driving pulley 9 of the machine may be connected through a clutch operated by a lever 11 to reduction gears and a lay shaft 15 carrying cams 16, 17 and 18, adapted to actuate the rod 24, table 6 and work-feeding mechanism respectively. In the position shown the work, comprisimg a rubberized canvas strip 63 with spaced blocks 64 of similar material loosely secured thereto by rivets 65 is passing through the machine. The cam 17 is in such a position that the table 6 is lowered and the rod 24 is raised by the cam 16 to open the grippers 22. On the first half of a revolution of the shaft 15 the cam 18 actuates a pawl 59 through a rod 54,.bell crank lever 55 and a pivoted lever 57 to feed forwardly to beneath the hammer 46 a fresh block 64. During the second half of a revolution of the shaft 15 the cam 16 permits the rod 24 to be depressed by a spring 25 thus causing the grippers to close on to the work. The rod 24 also actuates a bell crank lever 61 to engage a clutch 32 so that the hammer 39 is reciprocated and the sleeve 47 rotated. Riveting then begins and the cam 17 moves the table 6 so that the work is fed towards the hammer 46.
Patent GB-1436064-A (GB)
Title: Friction linings
IPC: F16D69/04
Filed: 1974-05-24
Abstract: 1436064 Friction pads; friction clutches K-R BEYRER 24 May 1974 [30 May 1973] 23380/74 Headings F2E and F2C In a friction brake or coupling, a friction lining of bonded friction material is provided with a layer of plastics adhesive material which has binding properties under pressure load only, the binding property ceasing when no pressure load is preset. A composition for the adhesive is 50-60% by weight of a plastics adhesive material, 0-5% by weight of a filler material, e.g. carbon black grade CK3, 40-50% by weight of a solvent mixture consisting of equal parts of ethyl alcohol and trichloroethylene. The filler is added to the plastics material forming a dispersion to which the premixed solvent is added. The solid material is about 20% of the solution which is applied to friction material with a spray gun and left to dry beyond stickiness. The resulting linings 12, 321 are riveted or screwed to supports 11 or 32 to be applied to steel or iron alloy rotatable members 13, 34. For braking, the linings are stationary and for clutching they are rotatable. The adhesive allows smaller rivets or screws to be used to provide more lining wear, but allow ready dismounting of the linings when replacements are required.
Patent GB-1138460-A (GB)
Title: Steroid compounds
IPC: C07J1/00
Filed: 1966-05-25
Abstract: 1,138,460. 13#-(C 2-5  alkyl)-gonane compounds. MERCK & CO. Inc. 25 May, 1966 [1 June, 1965], No. 23387/66. Heading C2U. [Also in Division A5] Novel steroids of the formulµ (wherein R 1  is ethyl, isopropyl, n-butyl, isobutyl, n-pentyl, or isopentyl; and R 2  is C 1-5  alkyl) are prepared by ethynylating a 3-alkoxy- 13# - alkyl - gona - 1,3,5(10) - trien - 17 - one to give the corresponding 17α-ethynyl-17#-ol, converting this to the 17-acetate, brominating this with N-bromoacetamide to give the 17α-dibromocacetyl-17#-acetoxy compound, debrominating this with zinc dust and an aliphatic acid to give the 17α-acetyl-17#-acetoxy compound, reducing this with lithium or sodium in liquid ammonia to give compound VI, treating this with methanolic HCl to give compound VII, and oxidizing this to compound VIII. 3 - Alkoxy - 13# - alkyl - gona - 1,3,5(10) - trien- 17-ones are prepared by catalytically hydrogenating 3 - alkoxy - 13# - alkyl - gona - 1,3,5(10),8,14 - pentaen - 17 - ones to give 3 - alkoxy - 13# - alkyl - gona - 1,3,5(10),8 - tetraen- 17-ones, treating these with methanolic HCl to give 3 - alkoxy - 13# - alkyl - gona - 1,3,5(10), 9(11) - tetraen-17-ones and catalytically hydrogenating these. Reference has been directed by the Comptroller to Specification 1,084,164.
Patent GB-759695-A (GB)
Title: Improvements in or relating to speed-sensitive control devices
Inventor: MARTIN WILLIAM ALEXANDER ONSLO
IPC: H02P23/00
Filed: 1951-10-08
Abstract: 759.695. Governor transmitting mechanism. ROLLS-ROYCE, Ltd. Oct. 8 1952 [Oct. 8, 1951], No. 23426/51. Class 57 [Also in Groups XXIX and XXXV] A fuel supply system for a jet-engine comprises a pump impeller 16 driven from the engine shaft 10 drawing fuel from a tank along a conduit 18 and delivering it along a conduit 19 past a throttle valve 20 to the engine combustion chamber. The valve 20 comprises a plugged rotatable valve tube 21 having a series of inlet ports 23 whose area is not changed by rotation and a metering outlet port 24 whose area is controlled by rotation of the cylinder. A minimum flow orifice 23a is provided. The end of the valve tube carries a cylindrical head 25 having a radial nozzle 26 directed towards a receiving inlet 27 in a flange 29 of the valve tube, the fluid returning through ducts 41a, 41b to the duct 18. The pressure induced in inlet 27 acts on a Bourdon tube 30 connected between this flange and the casing to rotate the valve tube to control the aperture of outlet port 24. A steel cup 32 mounted on a spindle 34 has an aperture 33 in its edge through which the jet from the nozzle 26 passes. The spindle 34 which is resiliently restrained by a pair of magnetic devices 35, 36 (see Group XXXV), carries an eddy-current coupling member 38, the force on which depends on the speed of the engine shaft 10. In operation, if the engine speed becomes excessive, the increased torque on coupling member 38 turns the spindle 34 and cup 32 displacing the slot 33 to reduce the pressure due to the jet 26 on the Bourdon tube 30. Consequent rotation of the valve tube 20 closes port 24 and reduces the supply of fuel to the engine. Specifications 716,254 and 716,255 are referred to.
Patent GB-835025-A (GB)
Title: Improvements in and relating to cathode ray tube apparatus
Inventor: CLAPP RICHARD G
IPC: H04N9/24
Filed: 1956-07-30
Abstract: 835,025. Colour television. PHILCO CORPORATION. July 30, 1956, No. 23436/56. Class 40 (3). [Also in Group XL (c)] Relates to colour television imagereproducing apparatus employing a cathode-ray tube 10 of the type having a screen 22 formed of a repeating sequence of vertical red, green and blue phosphor strips and incorporating indexing strips by means of which signals are produced to control the application of colour signals to modulate the tube grid 16 in step with the scanning. To ensure that indexing signals are produced even in the absence of modulation signals, the grid is biased by source 28 to cause a minimum beam current, of the order of 20 microamperes, always to flow. In accordance with the invention, this minimum value of current is stabilized against variations in the operating conditions of the tube, due for example to ageing or variation in power supplies, by the inclusion of a degenerative resistor 84 in the cathode circuit, the resistor being rendered ineffective for signals in excess of a predetermined value by the inclusion of a shunt diode 86 biased by a source 88. The resulting cathode-ray tube modulation voltage Eg, beam-current Ip, characteristic takes the form shown at 104 in Fig. 3, where 100 shows the normal tube characteristic and 102 the characteristic obtained if diode 86 is omitted. Eg indicates the level of modulation voltage at which the diode is rendered ineffective. Apart from stabilizing the minimum current level, the characteristic curve results in a sharpening of the pulses of colour signal, since the lowlevel skirts of the pulses have relatively little effect, and improves the accurate production of indexing information. Resistor 84 may be of a high value, e.g. one-quarter megohm, but where stray capacities limit the effective value, a smaller resistor may be employed, e.g. 280 ohms for a cathode-ray tube having a transconductance of 20 micromhos and an amplifier 92 employed to apply an amplified version of the cathode potential variation as feedback in the grid circuit 30, 32. Amplifier 92 is arranged to amplify both D.C. and video signals. Reference is made to use of other electrodes than the cathode, e.g. a beam accelerating electrode, to derive a signal for application as feedback to the grid.
Patent GB-325247-A (GB)
Title: Improvements in or relating to wheels more particularly for use on railway vehicles
IPC: B60B17/00
Filed: 1928-08-15
Abstract: 325,247. Kreissig, E., and Ringfeder Ges. Aug. 15, 1928. Disc wheels; spring wheels; hubs.-Wheels, particularly for railway vehicles, are formed with resilient rims and hubs to ensure good frictional grip when pressed on to the wheel body and axle respectively. In the form shown in Fig. 1, the tyre r is pressed on to the flange c of the wheel disc e, which is of S-section and formed with radial corrugations f, g. The hub 3 is of tapersection and may be formed integral with the disc, as in Fig. 1; or, as shown in Fig. 3, a separate taper sleeve i may be fitted between the wheelcentre b and the axle a. The wheel-flange c may be formed with a circumferential lip adapted to spring into a groove in the tyre. Fig. 9 shows a modification in 'which a spring-ring h<1> is fitted between the flange c and the tyre; or separate springs h<11> may be similarly fitted, as shown in Fig. 10. The wheel shown in Fig. 3 is formed with cast or forged spokes e<1> and a channelsection felloe c to receive the resilient rim h.
Patent GB-751574-A (GB)
Title: Improvements in or relating to service elevator
IPC: B41F13/00
Filed: 1954-08-13
Abstract: 751,574. Guided platform hoists. POLLOCK PAPER CORPORATION. Aug. 13, 1954 [Aug. 26, 1953], No. 23568/54. Class 78 (3). A vertically moving servicing platform adapted to extend between adjacent roll stocks of a printing press is equipped with wheels running on separate vertical tracks at one side of the press which run parallel for a portion of their lengths and diverge upwardly adjacent their upper ends whereby when the platform is raised beyond the point of divergence of the tracks it is swung into vertical depending position. As shown, the platform 11 is carried by a plate 34 provided with pairs of brackets 39, 43 carrying respective pairs of rollers 37, 41 running in respective U-section girders 13, 12 arranged back-to-back. Girders 13 are bent at their upper ends towards the roll stocks 7 of the printing press which are to be serviced so as to diverge from the girders 12. A pair of chains 46 pass in an endless loop from the lower brackets 43 over driven sprockets (not shown) on the output shaft of a gear-box 48, over idle sprockets 49 and back to brackets 43. The driving motor 52 is controlled by suitable relay gear (not shown) by an " up " and a " down " switch on the platform to move the latter between a limit switch at the bottom ends of the girders and a limit switch at the points of divergence of the girders, and by a pair of switches at a remote location to swing the platform between the horizontal and vertical positions by movement of the rollers 37 between the latter switch and a limit switch at the upper ends of girders 13.
Patent GB-906210-A (GB)
Title: Improvements in and relating to mobile lighting installations
IPC: B60P3/18
Filed: 1960-07-06
Abstract: 906,210. Mobile lighting installations. HARLEY, M. C. July 4, 1961 [July 6, 1960], No. 23586/60. Class 75 (4). A mobile lighting installation embodying a self-contained source of electric power for the lamps comprises a vehicle, e.g. a trailer, on which a superstructure is mounted having a mast-like structure h for supporting the lamps g pivotally mounted thereon, a winch k for elevating the structure h and a series of platforms c, d (not shown), e, f on which the operator may stand to adjust the lamps. The structure h consists of two parallel masts connected by cross-members, the lower of which is connected to the cable j of the winch and on the upper of which four lamps g are mounted side-by-side. Two poles carrying red warning lamps o may also be fixed to the structure h. The trailer causes two petrol-engine or similarly-driven generators for the power supply to the lamps. During towing of the trailer, the structure h is lowered to rest on a support m, being held in place by clamps n. An additional lamp giving an all-round light may be mounted on the structure. In place of a trailer, the superstructure may be mounted on a self-propelled truck.
Patent GB-1338025-A (GB)
Title: Production of cyanogen
IPC: B01J19/00
Filed: 1971-04-19
Abstract: 1338025 Cyanogen DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT 19 April 1971 [17 March 1970 21 March 1970 8 May 1970(2)] 23608/71 Heading C1A Cyanogen is produced by catalytic oxidation of HCN with H 2 O 2  in the presence of CuBr 2 , CuCl 2 , Cu(CN) 2 , Cu(NO 3 ) 2 , or CuSO 4 . Fe<SP>3+</SP> salts may also be present, with anions corresponding to the Cu salt (Fe 2 (SO 4 ) 3  may be formed in situ from FeSO 4 ). The HCN may be used as a gas, liquid or aqueous solution, and the H 2 O 2  as a 3-90% aqueous solution or as an organic solution. The temperature may be 0-100‹ C. and the pressure 1-5 atm. An organic solvent, e.g. tetramethylene sulphone, ethyl acetate or n-propyl acetate, may be present. The process may be operated continuously, the catalyst solution being distilled to remove water and recycled, any HCN and CN evolved during distillation also being recycled. Alternatively, the solution, optionally after distillation, may be treated with alkali metal or alkaline earth metal carbonate, e.g. CaCo 3 , to precipitate Cu and Fe carbonates which may then be converted, e.g. into sulphates with H 2 SO 4 , and recycled. CNCl is formed as by-product in Examples 6 and 7.