baber/WOPTO huggingface dataset:
Patent GB-593183-A (GB)
Title: Improvements in anti-backlash pinions
IPC: F16H55/18
Filed: 1943-12-22
Abstract: 593,183. Toothed gearing. GENERAL ELECTRIC CO., Ltd., and COOKE, E. T. Dec. 22, 1943, No. 21458. [Classes 80(i) and 80(ii) ] To eliminate backlash in toothed gearing, and still provide a non-resilient drive in both directions, a toothed wheel is formed in two parts 20, 21 (shown separated) one, 20, of which is secured to a driving shaft 17 whilst the other, 21, is freely mounted on the shaft and is connected to the first part by biasing coil springs 14, which take up backlash, and also by a oneway roller clutch 5, which transmits a rigid drive from the shaft to the wheel part 21 when the direction is such that the latter drives the mating toothed member. The one-way clutch comprises spring - loaded balls or rollers 5 in cam recesses in one part 21 (or 20), engaging a cylindrical boss 8 on the other part 20 (or 21), the boss having flats 10 to permit the parts to be approached together into axially abutting relation and then turned to an operative position, in which the parts are retained by screws 13 tapped into one part and passing through circumferential slots 19 in the other. The coil springs 14 connect pins 15 on one part 20 with pins 16 on the other part 21 passing through slots in the part 20. The wheel engages a rack (not shown) the teeth of which may be straight spur, single or double helical, or may be in two sections displaced by a fraction of a toothpitch.
Patent GB-153990-A (GB)
Title: Improvements relating to spring motors for use in gramophones and the like
IPC: G11B17/00
Filed: 1919-09-01
Abstract: 153,990. Collaro C. Sept 1, 1919 Spring position storing mechanism .-In gramophone and like motors, the parts are mounted in a single casting in such a manner that the spring drums, the main spindle, the governor spindle and the winder spindle can each be separately removed without disturbing the others. The frame consists of a base-piece 1 and two projecting wings 2, 3. The drum spindle 4 takes between the wings 2, 3 of the frame and at its ends is provided with sockets containing balls, into which are inserted pins 15 screwed through the wings 2, 3 and provided with ball sockets at the ends. The main spindle 7 has a plain bearing in the base 1, against which is a collar 24 fixed by a set-screw 25, the lower end of the spindle engaging a socket in an eccentric plug 28 secured in the adjusted position by a set-screw 29. The governor spindle 5 is mounted in eccentric pivot bearings in plugs 30. The winder spindle is mounted between the wing 2 and a projection on the frame, and is held in position by the pinion 21 which is secured to the spindle by a set-screw.
Patent GB-1462161-A (GB)
Title: Process for producing aromatic ammonium sulphonate or a polymer thereof
IPC: C08F8/00
Filed: 1975-05-20
Abstract: 1462161 Poly(ammonium-p-styrene sulphonate) TOYO SODA MFG CO Ltd 20 May 1975 [27 May 1974] 21492/75 Heading C3P [Also in Division C2] A polymer of ammonium p-styrenesulphonate is obtained either by reacting an alkali metal p-styrenesulphonate with an inorganic ammonium salt in a hydrophilic alcohol or a mixture of a hydrophilic organic solvent and water, and then radical polymerizing the ammonium p-styrene sulphonate so formed; or by reacting an alkali metal p-styrene sulphonate polymer having a M.W. up to 2 x 10<SP>6</SP> with an inorganic ammonium salt in a hydrophilic alcohol or a mixture of a hydrophilic organic solvent and water. Specified hydrophilic organic solvents are hydrophilic alcohols and oxygen-containing polar solvents. Specified inorganic ammonium salts are (NH 4 ) 2 SO 4 , NH 4 HSO 4 , (NH 4 ) 2 CO 3 , NH 4 HCO 3 , (NH 4 ) 3 PO 4 , (NH 4 ) 2 HPO 4 ,
Patent GB-317968-A (GB)
Title: Cheese packing and process for the production thereof
IPC: B65D85/76
Filed: 1928-07-24
Abstract: 317,968. Sutter, E. July 24, 1928. Paper and like bags, making. -Relates to the making of tin, aluminium, or like foil wedgeshaped bags. A strip d, Fig. 2, is cut as shown to form side portions b, c of which the edges z form margins which are turned at right-angles. -The triangles f represent waste. Two side portions b, care spaced apart by distance pieces with the margins z projecting inwards. A strip a, Fig. 1, with a strip s of solder such as Rose's metal, glue, resin. &c., at each edge, is applied as shown in Fig. 4 to the margins of the two straight edges of the pieces b, c, a small portion z<1> of strip being applied round the corner. The formation of the bag may be effected on a hollow templet, connected to a vacuum duct, and adapted to be lowered into a corresponding mould similarly connected. By breaking the vacuum in the templet and applying it in the mould, the bag is caused to remain in the mould. The parts are pressed together by a heated die and liquid hot cheese is poured into the bag thus formed. The packet is then closed. In a modification, the strip a is not coated with solder and is laid inside the flanges the parts being united by pressure.
Patent GB-359029-A (GB)
IPC: F16J10/04
Filed: 1930-07-16
Abstract: 359,029. Cylinders. KRUPP AKT.- GES., F., Essen, Germany. July 16, 1930, No. 21517. Convention date, Aug. 9, 1929. [Class 7 (ii).] A cylinder liner is made from a steel alloy containing a substantial percentage of chromium but no considerable quantity of nickel; in addition it may contain tungsten, vanadium, or molybdenum, and the following limiting quantities are given, viz. :-chromium 3-20 per cent, tungsten 5-20 per cent, vanadium 0À1-3 per cent, and molybdenum 0À1-3 per cent.
Patent GB-154700-A (GB)
Title: Sheet distributor for printing machines, rotary duplicators and the like
IPC: B65H3/54
Filed: 1919-09-02
Abstract: 154,700. Bosc, L. P. Sept. 2, 1919. Sheet-separators; pile tables and supports.- Sheets are fed to rotary duplicator or other printing-machines by a device of the kind in which the sheets are placed on a table 19 arranged against an inclined plane 3, the table being carried by systems of parallel links which, in conjunction with springs, cause the table to move parallel to the plane 3 so that the top sheets may be fed off successively by an intermittently-driven roller 6 carried by arms 7 attached to adjustable arms 11. According to the present invention, a pressing or holding device in the form of a ball or band of rough material 51, at the rear of the pile, is carried by an arm 50 which is lifted momentarily from the pile as the top sheet is being advanced by the roller 6, but is returned in time to prevent a second sheet from being carried forward with the sheet under operation. To assist in separating the sheets, the table 19 carries a resilient blade 60 at its front end, and the band 5 of rough material is let into the feed table 2 to prevent a second sheet from passing with the sheet under operation. The arms 11 are adjustably held by screws 59, and an adjustable spring 13 acts on a bar joining the arms 7 to regulate the pressure nf the roller 6, the arms 7 also being controlled by screws 14, or as shown in Fig. 6 by a bolt 16, spring 18, and a wing-nut 17, this form being especially applicable for dealing with thin sheets. The roller 6 is driven intermittently by a freewheel device from a wheel 40 which is oscillated by a reciprocating rack 39 operated by eccentric mechanism from a rotary duplicator drum 36. The roller 51 is attached to a rod 50, Fig. 5, acted on by a spring 50<a> and formed with ratchet teeth, one of which is engaged by a tooth 49<a> on a hollow arm 49 attached to a pivoted member 48, which is given a contra-clockwise movement to raise the ball 51 just after the top sheet is fed by the roller 6. The member 48 is carried by a shaft 45 fitted with a spring-controlled lever arm which is coupled to a reciprocating rod 43 by a pin 53 and slot 55 until the rod 43 is raised by a pin 52 acting on an inclined surface 54 on the rod. The arm 44 is then released from the rod and the member 48 returns to the position shown in Fig. 1, and the ball 51 presses on the pile in time to prevent a second sheet from being carried forward with the one being fed. The table 19 is carried by four sets of links 20, 21, 22 mounted on a support 23 and provided with adjustable springs 26 for maintaining the pile in its raised position. The table is also guided by cotters 31 in guides 32, and by pivoted rods 27 connected to plungers 27<1> in cylinders 29<1> fitted with adjustable springs 29. Positioning-devipes 33, 34 keep the pile in place.
Patent GB-1425723-A (GB)
Title: Connecting means
IPC: A47B57/40
Filed: 1973-05-07
Abstract: 1425723 Shelving CAVAN ENG Ltd 7 May 1973 21572/73 Heading A4B [Also in Division F2] An upright and a horizontal beam for shelving are releasably interconnected by interengaging apertures and projections, one of the projections being formed by a cam 7 and the other projections 6 being undercut at 6a, and the cam 7 being rotatable by a lever 8 between the full-line position in which the undercuts 6a engage with the edges of the respective apertures 3 to retain the projections 6 in engagement with their apertures and the dotted-line position in which the projections 6 can be disengaged. The shelving comprises a plurality of beams having their ends connected as above to uprights. The projections 6 are formed by pegs welded to an angle bracket which is welded to the end of the beam. The upright and the beam may each have both projections and apertures.
Patent GB-1083449-A (GB)
Title: Ball bearing slip drive
IPC: A01B71/06
Filed: 1966-05-16
Abstract: 1,083,449. Shaft couplings. NEAPCO PRODUCTS Inc. May 16, 1966 [July 23, 1965], No. 21589/66. Heading F2U. A ball-spline coupling consists of a square or polygonal shaft 14 engaging a corresponding recess in a co-operating sleeve shaft 17, the walls of the recess in conjunction with channels 18 forming endless tracks for the ball trains 22, there being sufficient clearance between the shafts to ensure that under torque loading each face of the shaft 14 engages only one of the adjacent ball trains at each corner. End caps 20 are provided with arcuate portions 20a 20d forming the outer end surfaces of the ball tracks. In addition, each side wall of the sleeve shaft 17 is formed with an arcuate groove 17g providing a relief area in which the balls may move, free of load, from one side of the track to the other, to reverse their direction of movement.
Patent GB-736465-A (GB)
Title: Preparation of aromatic isocyanates
IPC: C07C263/10
Filed: 1953-08-05
Abstract: Aromatic isocyanates are prepared by introducing into an inert liquid reaction medium substantially simultaneously an aromatic amine, in an inert solvent therefor, and phosgene in at least 50 per cent excess of the stoichiometric equivalent of the amine, maintaining the temperature during reaction at about 130-300 DEG  C., separating the unreacted phosgene and hydrogen chloride formed, and thereafter isolating the pure aromatic isocyanate.  In one form of the invention, the aromatic amine is mixed with non-reactive liquid which has a boiling point above that of the aromatic isocyanate to be formed and the reaction with the phosgene is carried out at a temperature above the boiling point of the isocyanate but below the boiling point of the non-reactive liquid so that the isocyanate is distilled out as it is formed. The isocyanate is preferably collected in a receiver which contains a solvent for the isocyanate held at a temperature sufficiently high to prevent the formation of the corresponding carbamyl chloride.  In a second form of the invention, the amine is dissolved in a non-reactive solvent having a boiling point lower than that of the isocyanate to be formed and phosgene is passed in while refluxing the liquid, the hydrogen chloride and unreacted phosgene being removed through the reflux condenser. Inert liquids or solvents specified include hydrocarbon fractions of petroleum or coal tar origin, and particularly chlorinated hydrocarbons such as the chlorinated benzenes and chlorinated diphenyls.  Examples are given of the preparation by the first method of 2,4-tolylene diisocyanate, phenyl isocyanate, p-chlorophenyl isocyanate and m-phenylene diisocyanate.  Further examples describe the preparation by the second method of 2,4-tolylene diisocyanate, methylene-bis-(4-phenyl isocyanate), 2,6-tolylene diisocyanate, phenyl isocyanate, m-phenylene diisocyanate, and 1,5-tetrahydronaphthalene diisocyanate.  The second method may be carried out continuously by continuously withdrawing and working up liquid from the reaction vessel as the amine and phosgene are introduced.  1,5-Diaminotetrahydronaphthalene is prepared by adding sodium to a boiling solution of 1,5-diaminonaphthalene in amyl alcohol, treating with water, acidifying the alcohol layer, evaporating until crystals form, dissolving in ether, precipitating as the carbonate by introducing carbon dioxide, dissolving the carbonate in acetic acid, and treating with potassium hydroxide solution.
Patent GB-1477544-A (GB)
Title: Semiconductor assemblies
IPC: H01L25/18
Filed: 1975-05-20
Abstract: 1477544 Semiconductor assemblies INTERNATIONAL BUSINESS MACHINES CORP 20 May 1975 [19 Aug 1974] 21597/75 Headings H1K and H1R A semiconductor assembly comprises a monocrystalline silicon member 16, in particular a silicon integrated circuit device, provided with a plurality of electrical contacts, a silicon nitride (Si 3 N 4 ) support substrate 10, Fig. 2, having co-efficient of thermal expansion closely corresponding to that of the silicon member and electrical contacts registering with the contacts of the silicon member, the contacts of the substrate and the silicon member being electrically joined by metallurgical bonds 17, e.g. solder bonds or ultrasonic solid bonds, so that the substrate and the silicon member are spared from each other; and an electrically conductive pattern 14 on the substrate 10 providing external connections. In the embodiment of Fig. 3, silicon integrated circuit devices 16 are bonded to a moncrystalline silicon member 20 in the manner described above, there being interconnection pattern formed on the member 20 by utilizing known masking and diffusion techniques or by depositing a conductive pattern or an insulating layer on the silicon member, and the silicon member 20 is in turn mounted on the silicon nitride support substrate through solder bonds or ultrasonic solid bonds 26. Pins 12 may be provided on the substrate for providing electrical connectons with a card or board 24. The substrate 10 is formed by compacting silicon nitride particles into the desired shape and sintering, on it may be formed by deposition.
Patent GB-1119521-A (GB)
Title: Clothes airer
IPC: D06F57/12
Filed: 1964-05-25
Abstract: 1,119,521. Clothes racks. F. J. BREWERTON. 16 Aug., 1965 [25 May, 1964], No. 21602/64. Heading A4U. A clothes airer has two arms 1, 2 secured to a wall or other vertical surface, between and beneath which are suspended parallel horizontal bars 7 by means of cords 8 passed through apertures in the arms 1, 2, the free end of each cord being secured to a ring 10 which can be engaged between teeth 13 on a further bracket 11 secured to the wall beneath the arms 1, 2 so that each bar 7 can be individually raised or lowered.
Patent GB-1468326-A (GB)
Title: Knitted or woven ion exchange fabric containing low denier filaments
IPC: C25B13/08
Filed: 1975-05-20
Abstract: 1468326 Knitted fabrics, woven fabrics; yarns E I DU PONT DE NEMOURS & CO 20 May 1975 [27 June 1974] 21657/75 Headings D1K and D1W [Also in Division C7] Knitted or woven fabric, e.g. for an ionexchange membrane in a chlor-alkali cell, comprises filaments of a fluorinated polymer containing sulfonyl groups (SO 2 ) in the form where X represents chlorine or fluorine on in ionic form (e.g. as sulfonamide groups), the filaments having a denier no more than 400 and being strengthened to withstand the knitting or weaving process by a coating or by twisting them with supporting filaments, e.g. of nylon, polyester or metal, the supporting material being subsequently removed. The polymer is formed from a fluorinated vinyl compound and a sulponyl-containing monomer including -SO 2 F or -SO 2 Cl polymerised by an aqueous or non-aqueous method and suitably forms a yarn by extrusion melt spinning. After knitting the supporting nylon or other material is removed by acid or caustic solvent. The latter serves to convert simultaneously -SO 2 X groups (when present) to ionic form. Otherwise the said groups must be converted by a preceding or subsequent treatment, e.g. with ammonia. Conversion may be to the form where Q is hydrogen or a cation of an alkali or alkaline earth metal or to where Me is a metallic cation, hydrogen or ammonia.
Patent GB-948153-A (GB)
Title: Improvements in and relating to rotary actuator
IPC: F15B15/06
Filed: 1960-06-21
Abstract: 948,153. Hydraulic apparatus. N.S.F. Ltd. (Ledex Inc.). June 21, 1960, No. 21709/60. Heading F1P. A fluid-pressure operated actuator comprises a shaft 22 journalled for rotation in a housing 10 having an expansible fluid-receiving chamber, and means responsive to expansion of the chamber for imparting a rotary movement to the shaft including a member 64 non-rotatably secured to the housing, a member 62 non- rotatably secured to the shaft, and anti-friction elements 76 between the plates. The fluidreceiving chamber is formed between an end cover 12 of the housing and a diaphragm 20 secured between the housing and end cover. The diaphragm abuts a thrust plate 38 having a groove engaged by balls 50 also engaging a groove in a plate brazed or splined to the shaft 22. The member 62, in the form of a disc, is brazed to the disc 52 and is formed with arcuate-inclined grooves 74 receiving balls 76 engaging similar grooves 68 on the member 64 which is formed as a disc secured by screws 66 to the housing. A port 34 is provided for supplying fluid pressure to the chamber to move the diaphragm to the right, the chamber on the right of the diaphragm being connected to atmosphere by a port 36. Movement of the diaphragm axially moves the thrust plate 38 and disc 62 to the right, the grooves 68, 74 acting through the balls 76 to apply a torque to the plate 62 and shaft 22 which are thus rotated. On release of the fluid pressure, the shaft is returned to its original position by an external force such as a spring, weight, or opposed actuator. Leakage of fluid from the chamber is prevented by sealing rings 40, 46.
Patent GB-662594-A (GB)
Title: Improvements in automatic-gain-control circuits for television receivers
IPC: H04N5/52
Filed: 1949-08-22
Abstract: 662,594. Television. PHILIPS ELECTRICAL, Ltd. Aug. 22, 1949 [Aug. 25, 1948], No. 21729/49. Class 40 (iii). [Also in Group XL (c)] In a receiver for positively-modulated television signals the frame synchronizing signals are amplified before detection more than the video signals, so that peak modulation in the modified signals corresponds to the black level and may be used for automatic gain control. Signals are applied to the control-grid of an amplifier 3, the suppressor-grid of which is normally biassed by means of a battery 6 so as to maintain the gain at a relatively low value. During the frame fly-back period a positivelygoing square-topped pulse is applied to the suppressor-grid from the scanning generator 8, which causes the gain of the valve 3 to increase such that the black level during this interval exceeds the peak video modulation, Fig. 4 (not shown). The modified signal is applied over an amplifier 9 to a peak rectifier 10 from the cathode lead 15 of which the A.G.C. potential is obtained. The signal is also applied to the grid of the tube 18 over signal detector 11 and an amplifier 16; to prevent illumination of the tube during the frame fly-back period, a blanking signal is applied to the cathode from the generator 8, over a condenser 20. The arrangement may also be used for stabilizing the black level in the detected video signal, Fig. 6 (not shown), the output then being taken between the cathode of the detector 11 and an adjustable tap on the resistance 12.
Patent GB-921901-A (GB)
Title: Improvements in or relating to jointing or repair of articles formed of or sheathed with thermoplastic material
Inventor: HORNE STEPHEN
IPC: B29C45/57
Filed: 1958-07-07
Abstract: 921,901. Pipe joints. TELEGRAPH CONSTRUCTION & MAINTENANCE CO. Ltd. July 1, 1959 [July 7, 1958], No. 21745/58. Class 99(1). [Also in Groups V and XXXVI]. Articles such as rods or tubes of thermoplastic material, in particular polyethylene, or electric cables insulated or sheathed with such material, are joined or repaired by enclosing a part of each article in a mould chamber having inlet and outlet ports, injecting thermoplastic material into the mould chamber by connecting the inlet port to a source of supply, and when the chamber is full and after disconnection from the injection supply, sealing the chamber and compensating for any contraction of the thermoplastic material on cooling by reducing the volume of the sealed space. The apparatus shown in Fig. 1 for the jointing or repair of cables comprises a two-part mould 3 of transparent plastic into the ends of which the cables 1, 2 are inserted and which has an inlet port 6 and spew holes 7. Molten polyethylene is injected into the port 6 until the mould cavity 18 is completely filled and then the plunger assembly 12 comprising the nozzle 17<SP>1</SP>, plunger 16, and plunger head 29, is clamped in position and the plunger screwed downwards to set up a gradual increase in pressure in the molten polyethylene. The polyethylene is then allowed to solidify and should any contraction voids be seen to form, the plunger is further screwed down until they are eliminated. Similar apparatus for jointing cables having a number of cores, e.g. telecommunication cables, and for moulding pipe joints are described. Apparatus for repairing the outer sheath of a cable when it is not necessary to mould into position a complete ring of material is shown in Fig. 5. The mould block 50 is formed with an arcuate face 51 conforming to the curvature of the outer sheath and having a transverse groove or recess 52 from which extends a feed duct 53. Four spew holes 61 are provided, two at each end of the mould recess. Screw threaded holes 62 are provided in the mould block 50 to enable the base plate of a plunger assembly to be attached as shown in Fig. 1. Specifications 676,543 and 856,040 are referred to.
Patent GB-1273316-A (GB)
Title: Composite molded and laminated article and method of making it
IPC: B44C5/04
Filed: 1970-05-06
Abstract: 1,273,316. Moulding decorative articles. PLASTICS MFG Co. 6 May, 1970 [21 May, 1969], No. 21786/70. Heading B5A. A decorative moulded article is made by hot compression moulding an assembly comprising a resin impregnated moulding composition and an outer sheet of unpigmented paper impregnated with 1¢ to 3 times its weight with a thermosetting aminoplast, a decorated unimpregnated paper sheet and an underlying sheet of paper impregnated with 1¢ to 3 times its weight with a thermosetting aminoplast being interposed between the outer sheet and the moulding composition. The aminoplast may be melamine formaldehyde or urea formaldehyde and the moulding composition may comprise a finely divided cellulosic filler impregnated with such aminoplasts. In the preferred embodiment, a preheated preform, for a dinner plate is moulded from an alpha cellulose paper/melamine formaldehyde mixture, the preform is covered on one side with a composite comprising a printed paper sheet sandwiched between a pair of dried alpha cellulose paper sheets impregnated with a melamine formaldehyde reaction product, and the whole assembly consolidated under heat and pressure.