baber/WOPTO huggingface dataset:
Patent GB-692494-A (GB)
Title: Improvements in or relating to circuit arrangements for detecting reverse current invapour arc converters
IPC: H02H7/127
Filed: 1950-09-18
Abstract: 692,494. Converting. GENERAL ELECTRIC CO., Ltd., and DALE, S. H. Dec. 6, 1951 [Sept. 18, 1950], No. 20536/50. Class 38 (ii). [Also in Groups XXXVI and XXXVII] For protecting against, or indicating reverse current in, a converting circuit including a vapour arc converter 10, the circuit includes a triode 20 whose cathode and grid are connected directly and through a resistance respectively to the normally negative and positive ends of a shunt 13 in the main D.C. circuit, so that when the direct current reverses the grid of the triode becomes more negative and the consequent reduction in anode current drawn from battery 18 through resistance 23 is used to operate the protecting or indicating means. This change in anode current causes a rise in volts on the anode which is connected through potentiometer 25 which provides a backing-off voltage, to the control electrode of a gas-filled valve 30. This valve 30 then conducts and the full voltage of the series-connected batteries 18, 32 is thrown across resistance 33 and the voltage on the converter suppressor grids which are connected to one end of this resistance changes from positive to negative and suppresses conduction through the converter 10. In a modification a slightly different control circuit affords protection by increasing the negative bias of the normal control grids of the converter, Fig. 2 (not shown).
Patent GB-676373-A (GB)
Title: Improvements in or relating to stencil duplicating inks
IPC: C09D11/14
Filed: 1949-08-08
Abstract: A stencil duplicating ink comprises an aqueous composition consisting essentially of water as the diluent, a colouring matter, a water-soluble cellulose derivative selected from cellulose ethers or cellulose esters having water-solubilizing hydroxyl groups, and a modifying agent selected from glyoxal, pyruvic aldehyde, or a liquid polyhydric alcohol compatible with the cellulose derivative solution. The composition may comprise more than 50 per cent of water as the diluent, 3-15 per cent of colouring matter, 2-25 per cent of a water-soluble hydroxyalkyl cellulose ether, 1-25 per cent of a liquid polyhydric alcohol, and 0.25-3.0 per cent of glyoxal or pyruvic aldehyde.  The polyhydric alcohol may be ethylene glycol, diethylene glycol, a polyglycol, or glycerine.  The composition may also contain a wetting agent such as a quaternary ammonium salt, a sulphonated ether, a dioctyl ester of sodium sulpho-succinate, or a dibutyl phenol sodium disulphonate.  The colouring agent is preferably a water-soluble dye, e.g. a nigrosine dye, or a triphenylmethane, rhodamine, thioflavine, auramine, quinone-imide, or xanthone dye. It may also be a sodium sulphonate of a nitro, azo, pyrazoline, quinoline, azine, xanthone, or anthraquinone dye.  Alternatively, the colouring agent may be an inorganic pigment such as carbon black, iron blue, or cadmium yellow.  The water-soluble cellulose derivative may be a hydroxy ethyl cellulose, a methyl cellulose or an ethyl cellulose having less than 19 per cent of ethoxy groups. Sodium or ammonium carboxy methyl cellulose ethers may also be used.  The presence of glyoxal or pyruvic aldehyde in the ink leads to insolubilizing of the cellulose derivative upon drying.
Patent GB-665552-A (GB)
Title: Improved labelling machine for tubular objects
IPC: B65C3/08
Filed: 1948-08-04
Abstract: 665,552. Endless conveyers; shoots. STEVENSON, G., TRINHAM, F. C., GOODING, H. E., and PEILE, R. G. Aug. 4, 1948. No. 20578/48. Class 78 (i). [Also in Group XV] In a machine for labelling tubular articles (see Group XV) the labels are conveyed from a gumming device to a labelling device by an endless conveyer which comprises a plurality of parallel thin rubber bands 6, Fig. 8, passing between sets of pulleys 2, 5 of which the set 2 is rotatably driven from the roller of the gumming device. Each separate label is guided on to the conveyer by the upper inclined edges of plates 1, Fig. 1, interposed between the rubber bands and at the discharge end of the conveyer is picked off by a bank of needles 31 which swing from a position in which they project between the rubber bands 6 to a position, shown in Fig. 8, in which they place the label in labelling position on the labelling device. The tubular articles are elevated from the bottom of a bin 64 to the labelling device by an endless canvas belt 58 with small hooks 61 attached to carry the tubes up to the labelling device. The bin 64 has a reciprocating bottom 74 downwardly inclined towards the discharge opening which is adjacent the lower end of the elevator 58.
Patent GB-597133-A (GB)
Title: Improvements in shoes for wear
IPC: A43D113/00
Filed: 1945-08-10
Abstract: 597,133. Shoes. ATLAS-UNION SHOE CO., Ltd., and ATLAS, A. Aug. 10, 1945, No. 20604. [Class 17 (ii)] A covering 5 for the heel of a shoe, sandal &c. of light flexible construction is turned outwards at its upper edge 5a and secured to the underside of an insole or sole, e.g., by the same lockstitch seam as that which secures the out-turned edge of the upper to the insole 2 or sole, while the upper 1 is turned outwards at the forepart and secured at 1a to the upper surface of the same insole or sole. The covering 5 may serve to hold the heel in position, and its lower edge may be turned under the heel between which and the top of a full length outer sole or heel lift it is secured.
Patent GB-531761-A (GB)
Title: Improvements in and relating to clothes wringers
IPC: D06F45/18
Filed: 1939-07-15
Abstract: 531,761. Wringers; machinery guards. BRITISH THOMSON-HOUSTON CO., Ltd. July 15, 1939, No. 20622. Convention date, July 15, 1938. Addition to 527,482. [Class 138 (ii)] [Also in Group XXIV] In a modification of the invention of the parent Specification wherein the upper wringer roll 64 is freely mounted on a shaft 73 supported in carrier arms 74, 75 adapted to be rocked by a control bar 76 to engage rolls 104 on the arms with cam-shaped recesses 107 in side plates 95 engaged by the springs 99 to hold the roller in wringing position, the control bar has a releasable connection with the carrier arms so that at the end of its movement to displace the arms from central position to wringing position, Fig. 8, it is automatically disengaged and returned to central position. The control bar 76 is pivoted on the shaft 73 and carries spring-controlled pawls 81, Fig. 6, which engage recesses 80 in a plate 79 on the carrier arm 74 when the roller is in central non-operative position. On movement of the control bar the pawl rocks the arm to engage the roll 104 thereon with one or other of the camshaped recesses 107, Fig. 8, so that the upper roll is held in wringing position, and at the end of this movement a plate 85 mounted on the shaft 73 lifts the pawl out of engagement with the notch whereupon a spring 89 engaging the bar 76 and the plate 85 returns the bar to central or neutral position. Release of the roll 104 from the cam recess 107 and consequent release of the wringing pressure is effected by a displacement of the control bar whereby it acts on flanges 92 on the plate 79 to rock the arm 74. A spring 115 on the plate 85 engages a recess in the plate 79 to centralize and steady the upper roll in its neutral or non-operative position. Other parts of the mechanism described for controlling the drive from the position of the upper roll are similar to those of the parent Specification.
Patent GB-148809-A (GB)
Title: Improvements in automatic screw machines
IPC: B23B7/02
Filed: 1920-07-10
Abstract: 148,809. Soc. Anon. des Anciens Etablissements Cuttat et Cie., (Assignees of Soc. Cuttat et Cie.). Feb. 23, 1918, [Convention date]. Combined turning and drilling machines.-In an automatic screw-machine, operating on bar stock, the tools are controlled from a cam-shaft b carried in bearings a<3> at the back of the machine and driven from a speed cone n by means of a worm m. The cam-shaft may be put in or out of gear by hand-operated means. The stock bar e is fed by means of a lever p and cam q through a head-stock d having a clamping-device operated by a lever r and cam s. The cutting-off tool g is mounted on a slide-rest 3 operated by lever mechanism from a cam c<1> and returned by a spring (not shown). The form tool i which may be replaced by a knurling-tool is carried on a sliderest h and controlled by the cam c<2> through a lever 7 and rod 8. A longitudinal slide-rest is actuated by a lever 12 and cam c<4> and supports a transverse slide-rest k carrying the turning-tool i<1> controlled by a lever 10 and cam c<3>. A follow rest may be mounted on the slide-rest j for turning parts of considerable length and small diameter. At one end of the machine may be provided an internal thread-cutting apparatus, or a drilling-apparatus f<1> controlled by a cam c<5> and lever 17. A movable abutment v, secured on a shaft x rotated by lever mechanism from a cam y, limits the length of feed of the bar. The cams c<1> - - c<5> are mounted on a sleeve secured by a clamping-nut, and are quickly replaceable by slackening the nuts 21 and removing the outer cam-shaft bearing.
Patent GB-375581-A (GB)
Title: Improvements in anamorphotic lens systems
IPC: G02B13/08
Filed: 1931-07-21
Abstract: 375,581. Optical systems. LEE, H. W. and KAPELLA, Ltd., 104, Stoughton Stieet, Leicester. July 21, 1931, Nos. 20788/31 and 9348/32. [Class 97 (i).] In an anamorphotic lens system for producing a real image, of the kind comprising two cylindrical members A, C with their axes at right-angles and separated from and enclosing between them a member B all of whose surfaces are spherical, the spherical member is substantially symmetrical and the cylindrical members are of substantially equal powers and at substantially equal distances from the spherical member. The cylindrical members may be simple elements, or each may comprise two such elements cemented together ; when they comprise single elements the spherical member is so constructed as to correct the aberrations of the cylindrical members. The aberrations of the spherical member are corrected for producing an image substantially the same size as the object. Means may be provided for varying equally and simultaneously the spaces S1, S3 between the spherical and cylindrical members in order to vary the degree of anamorphosis produced by the system. An additional spherical lens may be provided to magnify or reduce the distorted image produced by the anamorphotic system. Specifications 155,640 and 157,040, [both in Class 97 (i), Optical systems &c.], are referred to.
Patent GB-919129-A (GB)
Title: Improvements in or relating to means for compensating wear or slip in pulley and cable hoisting and winding gear
IPC: B66B1/42
Filed: 1959-06-17
Abstract: 919,129. Cable slips of Koepe winding pulleys. SOC. GENERALE DE CONSTRUCTIONS ELECTRIQUES ET MECANIQUES ALSTHOM. June 17, 1959 [July 8, 1958], No. 20796/59. Class 78 (5). A Koepe pulley (not shown) drives shaft 1 which via differential gear 2 drives control shaft 3 which drives the Lilly control for controlling the mine cage. Shaft 3 also drives crown wheel 9 of the differential gear 2, the drive being transmitted thereto via worm 4, worm-wheel 5, crank pin 6, slotted guide 7, rack 8, gear 10 and gear 11, to form a device for compensating for slip of the cable around the pulley or for wear of the perimeter of the pulley. This compensation is effected by manually or automatically adjusting the radial position of pin 6 on worm-wheel 5 whenever wear takes place.
Patent GB-128845-A (GB)
Title: An Improved Machine for Pasteurizing Milk or other Liquids.
Inventor: WAIGHT CHARLES
IPC: A23L3/18
Filed: 1918-12-13
Abstract: 128,845. Waight, C., and Walker, A. Dec. 13, 1918. Heating liquids. - A device for sterilizing milk in which the usual stirring-devices &c. are dispensed with, consists of two co-axial cones of corrugated metal a, b, the space between which is filled with water. The milk is supplied to a perforated gutter c and flows down the outer cone a. The water is heated by a gas burner or other heating-appliance h arranged within the inner cone. In a modification, the cones are arranged vertex downwards; the milk flows down the inner side and the heating appliance is outside. The apparatus is stated to be sufficiently powerful to prevent good milk from souring, but not to free milk from serious contamination.
Patent GB-247845-A (GB)
Title: Improvements in typewriting machines
IPC: B41J25/20
Filed: 1925-08-20
Abstract: 247,845. Fairweather, W. C., (Underwood Typewriter Co.). Aug. 20, 1925. Accenting-arrangements,. ink-ribbon mechanism. -In arrangements in which an accenting-key operates a multicolour ink-ribbon vibrator independently of the letter-spacing universal bar, the accenting-key has a finger engaging a roller on a link positively connected to the vibrator-operating lever, the point of connection being adjustable to vary the throw; the accenting-key may bear both accent and ordinary characters, the carriage shift mechanism controlling an interponent for causing the accent key to operate the letterspacing universal bar when the carriage is in one of the case positions. Fig. 1 shows the arrangement applied to the mechanism described in Specification 195,841 and comprising a vibrator lever 62 having a stud 58 engaging a channel 57 on an operating-lever 43 formed with a slot 48 receiving a stud 42 which has a one-way connection with a link 41 pivoted to an arm 35 on the shaft 31 of the universal bar 29, the stud being adjustable by a finger-lever 74 to vary or silence the throw. The accenting-key lever 84 is now provided with a finger 86 engaging a roller 87 on a link or slide 90 having a wing 95 formed with a slot 96 conforming to the slot 48, the stud 42 passing through both slots. The link 90 is mounted at the front in a bracket 91 and is formed at the rear with a guide-fork 94 engaging the pivot 51 of the lever 43. When the ordinary key-levers 16 are depressed, lugs 32 rock the universal bar, and the letter-spacing mechanism and vibrator are operated thereby. When the accenting-key lever is depressed, the lever 43 is operated by the link 90, the universal bar and the link 41 remaining at rest. When there are two or more accenting-key levers, the link 90 is provided with two or more rollers for engaging fingers on the key-levers. The rollers may be mounted adjustably. Mechanism for causing the accenting-key to operate the universal bar when the carriage is in one of the case positions, for instance the " capital " position comprises a slide 110, Fig. 9, which has pin-and-slot mounting 114 on the accenting-key lever 84 and is connected to an arm 108 adapted to be rocked by a shaft 103 operated by shift-key mechanism such as that described in Specification 154,087. The slide has a lug or interponent 115 which misses the universal bar 116 when the carriage is in the normal or " figure " position, but engages the universal bar when the carriage is in the " capital " position.
Patent GB-489068-A (GB)
Title: Improvements relating to automatic couplings for toy railway vehicles
IPC: A63H29/18
Filed: 1937-07-28
Abstract: 489,068. Toy - railway couplings. DUNHILL, A. July 28, 1937, Nos. 20894 and 31627. [Class 132 (iii)] The toy-railway vehicle coupling described in Specification 489,067 is modified so as to be uncoupled by an overhead magnet. The hook member p on one vehicle engages with the bow-shaped coupling member b on the other as described in Specification 489,067. The tube a carried by the member b is modified in having attached to it, a rod g extending upwards and having at its upper end an element i which is attracted by a magnet m arranged over the track to uncouple the vehicles. An electromagnet to which an impulse is given, or a permanent magnet is employed which can be raised and lowered in a bridge mounting over the track.
Patent GB-1342315-A (GB)
Title: Method of sizing and finishing paper or cardboard
IPC: D21H17/55
Filed: 1971-04-19
Abstract: 1342315 Sizing paper and cardboard SCHILL & SEILACHER 19 April 1971 [27 Aug 1970] 21114/71 Heading D2B A method of sizing paper or cardboard comprises internally sizing with a reaction product of a polyamide or polyamide resin with an epi- or di-chlorohydrin and surface sizing with a water--soluble copolymer of styrene and maleic anhydride, or a derivative thereof. The latter may be applied in the form of an aqueous solution together with an aqueous dispersion of a wax. The latter may be a natural or synthetic hydrocarbon, higher fatty acid or derivative thereof, fatty alcohol or polyolefin. The paper or cardboard may be made from natural and/or synthetic fibres e.g. natural or regenerated cellulose, polyester, polyacrylonitrile, or asbestos fibres.
Patent GB-634090-A (GB)
Title: Improvements in and connected with stabilizing fins for projectiles
IPC: F42B10/20
Filed: 1946-07-15
Abstract: 634,090. Projectiles. MARTIN, W. A. O., HULSE, F. W., and BLACKMAN, W. July 15, 1946, No. 21126. [Class 9 (i)] A projectile having a plurality of stabilizing fins retracted within the diameter of the adjacent projectile casing before firing is provided with means operated by a piston actuated by the propellant gases to force the fins into the extended position, means being provided to hold the fins so extended. A rocket projectile has a rocket motor casing 1 having an end-plate 2 and venturi 3. Centrally mounted in the end-plate 2 is a spigot 4 provided with slotted lugs 5 carrying pins 6 on which are pivotally-mounted segments 7 having teeth 8 meshing with a rack 11 on a piston-rod mounted in the bore 12 of the spigot 4. The end of the bore 12 adjacent the combustion chamber of the rocket motor is closed by a choke plug 13. Riveted to the segments 7 are the tail-fins 10 which in the retracted position extend behind the rocket, the fin assembly then having an overall width within the diameter of the adjacent rocket casing 1. - Upon firing, the propellent gases operating through the choke plug 13 force the rack 11 rearwards, thus rotating the segments 7 through 90 degrees when the fins 10 abut against shoulders 17 in slots 18 in a ring-member 19 mounted on the end-plate 2. Springs 14 then engage in recesses 16 in the segments 7 to hold the fins in the extended position.
Patent GB-691522-A (GB)
Title: Improvements relating to drying apparatus
IPC: F26B11/18
Filed: 1948-08-11
Abstract: 691,522. Rotary drying apparatus. PENN, F. J., and WELLS, R. Sept. 6, 1949 [Aug. 11, 1948], No. 21177/48. Class 34 (ii) Apparatus for drying granular materials comprises a generally horizontal perforate cylinder which rotates to agitate and convey the material from one end of the tube to the other. Separate air currents are introduced at different points along the cylinder and are exhausted without recirculation, each air current being independently controlled in respect of rate of flow and temperature. As shown, a perforate cylinder 10 rotates within a casing 18 and is provided with internal vanes to agitate the material. The casing 18 has a longitudinal slit 19 to allow the escape of damp air and communicating with three apertures in the wall are three air ducts 20, 21, 22 through which drying air is supplied, each duct communicating with a fan as shown at 23 for duct 20. The air supplied to ducts 20, 21, is hot air supplied from oil furnaces but cold air is supplied to duct 22 to cool the grain before discharge. Adjustable shutters are provided on the inlet side of the fan so that the supply of air can be controlled and as the heat output of the furnace is fixed the control of air supply also controls its temperature. The dried grain falls on to an elevator which delivers it to a sacking hopper.
Patent GB-249738-A (GB)
Title: Improvements in bottle, jar and the like closing devices
IPC: B65D45/32
Filed: 1925-08-24
Abstract: 249,738. McMann, M. H. Aug. 24, 1925. Indiarubber and other e l a s t i c stoppers. - A bottle having a downwardly facing shoulder 7 around the outside of its mouth is closed by a member comprising a rigid stopper portion 9 fitting against the opening and held there against by a ring of flexible resilient material, such as rubber, one edge of the ring being formed as a bead 11 adapted to engage in a groove 12 in the stopper portion 9 whilst the other edge is formed as a relatively stiff gripping portion 13 having a shoulder 14 adapted to engage beneath the shoulder 7 when the closure is pressed down on the bottle. From the shoulder 14 the ring is flared outwardly as at 16, and this, in conjunction with an external shoulder 15, facilitates application of the closure. When the closure is applied, a thin portion 10 between the head 11 and grpping portion 13, which permits the portion 13 to pass over the mouth and engage beneath the shoulder 7, remains stretched to draw down the closure on to the bottle. In a modification. the ring is replaced by a cap which covers the stopper portion entirely.
Patent GB-678262-A (GB)
Title: Improvements in and relating to electric furnaces
IPC: F27D11/02
Filed: 1945-08-20
Abstract: 678,262. Couplings. REVERE COPPER & BRASS, Inc. Aug. 20, 1945 [May 20, 1944], No.. 21211/45. Class 38 (i). [Also in Groups XI and XII] An electric furnace (see Group XII) is heated by graphite resistor bars 119 (see Group XI), the end bars being coupled to graphite extensions 130 by graphite sleeves 127. The extensions 130 are spaced from insulating sleeves 133 by asbestos packing 135. The terminals 137 are provided with passages 143, 144 for cooling- water, and the passage of air to the interior of the furnace is prevented by a sleeve 147 of helically-wound asbestos-packed metal strip which is welded to the metal framing of the terminal assembly. The two terminals are joined together by a bar 167 bolted at 177 to the insulating plates 146, the bar being rigidly supported on posts. To prevent the changing of the magnetic flux from heating the plates surrounding the terminals, the terminals are carried in non-magnetic panels 181, e.g. of silicon bronze, arranged as insets in the metal oven casing, and the magnetic path along the bar 167 is interrupted by an insertion of non- magnetic material.