baber/WOPTO huggingface dataset:
Patent GB-1282339-A (GB)
Title: A process for producing materials for pressure-sensitive copy paper
Inventor: HOTTA SEIJI
IPC: C09B11/24
Filed: 1970-04-07
Abstract: 1282339 Crystal violet lactone SUMITOMO CHEMICAL CO Ltd 7 April 1970 16321/70 Heading C2C [Also in Division C4] Crystal violet lactone i.e. 3,3-bis-(-p-dimethylaminophenyl)-4,5,6 or 7-dimethylaminophthalide of the formula is made by reacting a mixture of formaldehyde and a compound of formula wherein X is a nitro or amino group, in an inert solvent, with hydrogen gas in the presence of a catalyst for the catalytic reduction, and if desired in the presence of an acid and optionally treating the resulting product with an oxidizing agent. The crystal violet lactone may be used as material for pressure-sensitive copy paper giving a highly brilliant blue shade.
Patent GB-111392-A (GB)
Title: An Improved Tractor.
Inventor: BLOXAM ARTHUR GEORGE
IPC: B62D49/00
Filed: 1917-02-01
Abstract: 111,392. Bloxam, A. G., (Ewing, W. B.). Feb. 1, 1917. Agricultural tractors and the like with internalcombustion engines.-A tractor comprises a pair of driving-wheels 3 mounted in a frame 1 and a single rear steering-wheel 12, a draw-bar or frame 22 being pivoted to the frame to the rear of the driving-wheels and embracing the steering-wheel. The wheels 3 are driven by pinions 5 on a differential shaft 6, and the clutch and reversing-gear are operated from the driver's seat by shafts 31, 42. The wheel 12 is steered by worm gearing 15, 16. The reversing-gear is similar to that described in Specification 110,083, [Class 80 (ii), Gearing, Variable-speed &c.].
Patent GB-677094-A (GB)
Title: Improvements relating to beam compasses
Inventor: COONAN PAUL VALENTINE
IPC: B43L9/04
Filed: 1950-01-23
Abstract: 677,094. Curve - describing instruments. ENGLISH ELECTRIC CO., Ltd. Jan. 12, 1951 [Jan. 23, 1950], No. 1695/50. Class 97 (iii). A beam compass pivot member comprises a heavy block 10 having a flat face or the soles of feet for engaging a plane drawing surface, a beam carrier 19 mounted in the heavy block 10 to rotate relatively thereto about an axis perpendicular to the flat face or soles, and a mark 15 defining the point of intersection of the axis of rotation with the plane of the flat face or soles, the arrangement being such that visual inspection is permitted along the axis of rotation of the part of the drawing surface surrounding the point. In modifications, the heavy block is replaced by a permanent or electromagnet having poles situated in the flat face or in the soles of the feet to engage a ferromagnetic drawing surface or a plane drawing surface backed by ferromagnetic material. When an electromagnet is used it may be switched on only after it has been placed in adjusted position. The beam carrying the usual beam head is screw clamped within a rectangular hole in the carrier 19, the latter being horizontally pivoted at 18 to a bracket 17. A housing 16 carrying bracket 17, is rotatably mounted within block 10 by a ball bearing 11, the inner race of which is fast with a flanged sleeve 12 screwed at 13 to the block. Crossed hair lines 15 on a transparent disc 14 are visible through a central bore in the housing.
Patent GB-620457-A (GB)
Title: Improvements in the closure of expeller or screw press cages
IPC: B30B9/26
Filed: 1947-01-18
Abstract: 620,457. Extrusion presses. ROSE, DOWNS, & THOMPSON, Ltd., and HINDSON, F. J. C. Jan. 18, 1947, No. 1712. Addition to 588,476. [Class 46] In a modification of the press cage described and claimed in the parent Specification each support member or assembly of support members has one or more hooked lugs 10a adapted to engage around the hinge member 11 so that the support members can be detached when they are opened out.
Patent GB-504412-A (GB)
Title: Improvements in electrostatic condensers
IPC: H01G4/015
Filed: 1938-01-19
Abstract: 504,412. Condensers. BOSCH GES., R. Jan. 19, 1938, No. 1732. Convention date, Jan. 19, 1937. [Class 37] A condenser electrode, applied on at least one side of a single dielectric strip, is subdivided into a number of separate metal surfaces, connected each through a fuse strip to a common conductor. In the example shown, Fig. 3, the surfaces, with their fuse strips 15, and the common conductor running along one edge, are metallised on the dielectric so as to form a .continuous coating. The fuse strips may take various forms and lengths, such as short connecting links, or substantially the breadth of the strip as shown, or of intermediate sizes. They may be constricted at intervals. They may lie across the breadth or may be parallel with the edges. Each of the separate metal surfaces may be subdivided further, each sub. division having a fuse strip. By forming the separate metal surfaces as narrow strips 22 lying across the width of the condenser as in Fig. 6 each surface may constitute its own fuse strip. By folding over the edge of each metallized dielectric strip as shown in Fig. 8, the fuse strips, when longitudinal, may be made to lie in a zone out of the effective field of the condenser.
Patent GB-717341-A (GB)
Title: Improvements in and relating to forced recirculation steam generators
Inventor: REPPEL HANS
IPC: F22B37/14
Filed: 1952-01-22
Abstract: 717,341. Forced-flow steam boilers. LA MONT INTERNATIONAL ASSOCIATION, Ltd. June 16, 1952 [Jan. 22, 1952], No. 1734/52. Class 123(2) In a forced-flow steam boiler having the walls of the combustion chamber lined with steam-generating tubes, the upper ends of the tubes 3, Fig. 1, on the front wall 1 are so bent as to form spaced vertical panels of closely-pitched tubes extending into the upper part of the combustion chamber parallel to a side wall 2 of the latter. The rear wall (not shown) of the combustion chamber may also be provided with panels, the panels of the two walls being arranged alternately to interleave at substantially equal spacing. The Provisional Specification describes a modification in which the panels consist of closely-pitched tubes extending between inlet and outlet headers which are connected, respectively, to the circulating pump of the boiler and the usual steam- and-water drum.
Patent GB-222430-A (GB)
Title: Repeating attachments for sound reproducing machines
IPC: G11B3/095
Filed: 1924-01-22
Abstract: 222,430. Sheppard, C. E., (Assignee of Cooke, C. J., and Rennie, J. A.). Sept. 25, 1923, [Convention date]. Returning sound-box to starting-point.-Relates to repeating devices for gramophones of the kind comprising an arm pivoted eccentrically on a base-piece which is placed upon the record when in use, the free end of the arm being adapted to engage the needle when the playing is completed, and transfer the sound-box to the beginning of the record by reason of the movement of the arm relatively to the base that occurs when the arm engages the needle. According to the invention, the arm is so mounted that it yields transversely to the record if the engagement of its end with the needle is, at the first contact therewith, incomplete; the arm is thereby enabled to pass by the needle and make another revolution, so that effective engagement can then occur. The base-plate 10 has fixed thereto a hollow thimble 12 which fits over the central stud on the turntable, spring gripping-fingers being provided within the thimble. An arm 26 is mounted on a stud 15 pivoted on the base-plate, the arm being attached by a pin 24 fixed between flanges on the arm and engaging in an elongated hole 23 in the stud. A coiled spring 19 surrounds the stud, its outer free end 31 being secured to a tongue 27 which depends from the arm 26. The spring tends to keep the arm in contact with the part 12, and also to hold the pin 24 towards the forward end of the slot 23, as shown in Fig. 4. A raised cam 20 is provided on the plate 10, concentrically with the stud 15. The outer end of the arm 26 is formed with fingers 28 having a V-groove between them. During the reproduction of the record, the plate 10 and the arm 26 rotate together, but at the end of the playing, the needle D is caught between the fingers 28 and the arm 26 is thereby retarded. The continuing rotation of the base 10 causes the cam 20 to pass under the tongue 27 and lift the outer end of the arm 26, together with the sound-box. The arm 26 then swings outwards as shown in Fig. 3, carrying the soundbox to the starting-point of the record, on which it is deposited as the cam 20 moves from under the tongue 27. The arm 26, thereupon escaping under the needle, is returned by the spring 19 to its original position against the member 12. The above-described engagement of the fingers 28 with the needle D may occur as soon as contact takes place. If, however, the feed-movement caused by the record grooves is such that the needle is not in a position to pass into the notch between the fingers when it is first encountered, the arm 26 may yield lengthwise owing to its resilient mounting in the slot 23, thereby being enabled to pass by the needle for a final revolution.
Patent GB-1006186-A (GB)
Title: Wire netting
IPC: B21F27/00
Filed: 1963-01-15
Abstract: Wire netting has the wires covered with a plastic material and formed so that the sides of the netting bulge outwardly from the plane of the netting.
Patent GB-1026052-A (GB)
Title: Rotation control system
Inventor: KEMPSON BERTRAM CARL
IPC: B66D1/08
Filed: 1962-01-18
Abstract: 1,026,052. Winches; self-sustaining gear. DOWTY HYDRAULIC UNITS Ltd. March 14, 1963 [Jan. 18, 1962], No. 1929/62. Heading B8B. [Also in Division F2] Rotation of a driving shaft 11 or winding drum of a winch is prevented, except when driven by power means, by a brake 21 which is engaged by mechanical, electric or hydraulic means responsive to rotation of the shaft 11 or drum. As shown on rotation of the shaft 11, other than by a variable speed hydraulic transmission 1, 4, an arm 13 in light frictional engagement with the shaft 11 rotates to open a valve 14 or 15 which vents a brake release servo 23, whereupon a spring 22 engages the brake 21. Rotation of the arm 13 is limited by pegs 32, 33 on a ring 31 freely rotatable on the shaft 11 and integral with an arm 28 linked at 27 to the transmission control lever 24. The control lever 24 is arranged so that clockwise movement thereof produces anticlockwise rotation of the shaft 11 and vice versa. To raise the load the lever 24 and interconnected ring 31 are moved anticlockwise, whereupon the transmission rotates the shaft 11 clockwise. Initial movement of the shaft 11 permitted by lost motion in the brake rotates the arm 13 into the position shown against the stop 33. The values 14, 15 are thus closed and pressure liquid is supplied from a pump 5 through a restrictor 19 to the servo 23 which disengages the brake 21 and permits further rotation of the shaft 11 to raise the load. On stopping the transmission, the load tends to rotate anticlockwise the shaft 11 and arm 13 which opens the valve 14 and applies the brake 21. To lower the load the lever 24 is moved clockwise, whereupon the stop 32 on the ring 31 moves the arm 13 into the position shown, wherein the valves 14, 15 are closed and the brake 21 is thus disengaged to permit anticlockwise rotation of the shaft 11.
Patent GB-492746-A (GB)
Title: Improvements in diffusion processes and apparatus particularly for the extraction ofsugar from beets
IPC: C13B10/08
Filed: 1937-01-25
Abstract: 492,746. Extracting sugar and other substances. TEATINI, D. Jan. 25, 1937, No. 2202. [Classes 81 (i) and 127] In extracting materials, particularly sugar beet slices, a chamber 45, in the form of a complete or segmental ring and bounded by inner and outer perforated walls, 12, 2, thus defining inner and outer ducts 12a and 4, is filled with the material, and the extracting liquid is caused to flow from one duct to the other through the material by the application of pressure or reduced pressure until extraction is complete. The diffuser 1 is closed by doors 9, 10, the upper one being manipulated by means of the weighted levers 24, 26 and the lower one by means of the pressure fluid cylinder 42. The extracting liquid is supplied through valve 18, joint 17 and pipe 16 to the inner duct, and drawn off from the outer duct from channel 4a. Air is vented when first filling the vessel from valve 20, steam or other fluid being fed through 20 at the end of the extraction to remove wholly the extracting liquid from the material. The diffuser may be arranged vertically, horizontally or obliquely. Specification 492,661, [Group XXIX], is referred to.
Patent GB-798069-A (GB)
Title: Improvements in or relating to "squeeze-to-use containers"
IPC: B65D85/72
Filed: 1956-01-24
Abstract: 798,069. Resilient containers and closures therefor. BRADLEY CONTAINER CORPORATION. Jan. 24, 1956 [Feb. 8, 1955], No. 2245/56. Classes 66 and 125(3). A squeeze-to-use container comprising a flexible but self-sustaining body wall 10, Fig. 3, of plastic material of uniform thickness, has a metallic end closure 11 engaging the inner wall surface 13, the adjacent edge 14 of the body and being embedded in the outer wall surface thereof as at 17 to form a tight seal. The skirt 12 of the end closure 11 may be straight or it may have a groove as shown at 31. The closure at the other end of the body may be of similar construction and, in addition, it may include a lever lid or be formed with a threaded neck portion. In Fig. 5 the metal top 11<SP>1</SP> has an opening 25 in which is resiliently held a plug 26 of plastic material having an opening 27 and a threaded neck 28 receiving a cap 29. Instead of a metal closure for the other end, a plastic disc may be fused into position or said other end of the body 10 may terminate in an integral upstanding neck threaded to receive a screw cap. Alternatively an upper open cylindrical end may have its edges brought together to be united by welding or fusing as at 32, Fig. 7a. In Fig. 7a, the skirt 12 of the end closure 11 is shown inclined inwardly to conform with the inclination of the body wall 10. The metal end closures may be covered on their internal faces with a protective film of material such as polyethylene or polyvinyl chloride or a separate plastic film 41, Fig. 6, may be fastened between the metal bottom 11 and the body 10. In Fig. 13, the top metal disc 11<SP>1</SP> which is crimped to the plastic body wall 10, has an opening in which is a plug 50. The plug 50 has circular flanges 51 and 53 engaging the lower and upper faces of the disc 11<SP>1</SP>, and has a hollow portion 54 receiving a cap 55 which has a flexible, integral connection 56 to the flange 53. The metal end closure may be of black, plate; stainless steel, tin plate and aluminium or other sheet metals. Many plastics are quoted as being suitable for the body wall 10 some of which are : polyethylene, polyvinyl chloride, polyvinylidene chloride, polypropylene and polystyrene.
Patent GB-690470-A (GB)
Title: Process for the purification of titanium tetrachloride
IPC: C01G23/02
Filed: 1952-01-28
Abstract: Crude titanium tetrachloride, containing especially vanadium and silica as impurities, is purified by distilling in the presence of a small amount, say 0.02-3 per cent by weight, of iodine, or of sodium, potassium, cuprous magnesium, calcium or aluminium iodide, or mixtures of these agents.
Patent GB-375229-A (GB)
Title: Improvements relating to the manufacture of films for colour photography
IPC: G03C7/14
Filed: 1932-01-27
Abstract: 375,229. Embossing processes. I. G. FARBENINDUSTRIE AKT.-GES., Frankfort-on-Main, Germany. Jan. 27, 1932, No. 2494. Convention date, Jan. 27, 1931. [Class 100 (ii).] In forming lenticular films by casting on a lenticular colloid film, and to enable the curvature of the lenticular elements to be controlled, the colloid casting surface is made by first treating it with a swelling agent before impressing it with a die, such as a roller helically wound with wire as described in Specification 341,948. The die roller is preferably warmed. The colloid may be gelatine, a cellulose ester or ether, or a resin. In the case of a cellulose derivative film, the lenticular casting surface may be wholly or partially regenerated to cellulose by the method described in Specifica- .tion 279,047, [Class 2 (ii), Cellulose &c.].
Patent GB-258774-A (GB)
Title: Improvements in or relating to coin-operated machines
IPC: G07F11/16
Filed: 1926-01-28
Abstract: 258,774. Wade, H., (Mills Novelty Co.). Jan. 28, 1926. Premium checks, delivering. - In a coincontrolled machine having a premium coupon magazine and a stack of spring-actuated delivery slides associated therewith such as described in Specification 246,621, a safety catch is provided adapted to be thrown into position to catch the delivery slides in partially retracted position when the machine is subjected to a jarring action in the case of fraudulent actuation, so that the coupons will have an overlapping relation and jamming be prevented. The invention is described in connection with the mechanism described in Specification 246,621 provided with the fraud-preventing device described in Specification 246,811. The safety catch comprises a lever E pivoted at 27 and having a bent arm 28 adapted to move behind the upturned flange 6 on the lowest delivery slide to prevent the slides from moving fully to delivery position. The lever E is normally held by a delicate leaf spring 30 but, if the machine is jarred, for example in an attempt to introduce a penny where a coin of larger denomination is required, the lever E is thrown into slide-engaging position. The slides are caught by the arm 28 so that the perforations 4 therein are overlapped by the bore of the magazine 5 thereby preventing jamming of the machine since the coupons in the slides will slide readily under the coupons in the magazine when the slides are forced forwardly. The lever E is returned to normal position by an arm 16<c> on a lever 16 engaging a lug 29 on the lever E at the next actuation of the machine.
Patent GB-555617-A (GB)
Title: Improvements in apparatus for continuously conditioning conveyor rolls
IPC: C25D7/06
Filed: 1942-02-27
Abstract: 555,617. Electroplating metal strip. TRIGGS, W. W. (Carnegie-Illinois Steel Corporation). Feb. 27, 1942, No. 2626. [Class 41] [Also in Groups XVI, XXII and XXIII] A resilient web feeding roller 4, particularly for feeding a metal strip through an electroplating bath 2, is provided with a brush 10, e.g. of tempered wire, of such strength as to remove glazing from the surface of the roller or otherwise keep the roller surface in condition to feed the strip without slipping and consequent damage to the strip surface. The brush is adjustably carried by screwed supports 7.
Patent GB-484240-A (GB)
Title: An improved joint for railway rails and the like
IPC: E01B11/24
Filed: 1937-01-29
Abstract: 484,240. Railway rail joints. HAY LLAR, H. F. Jan. 29, 1937, No. 2633. [Class 104 (ii)] In a rail joint a block C of metal is welded to one side of the web of one rail B, and a similar block C<2> is welded to the opposite side of the web of the other rail A. Clamp plates D secured to the sole plate E and sleeper by screws D<4> engage the outer faces of the blocks C, C2 and the upper faces of the rail flanges, and have elbows D<1> engaging the ends C<1> of the blocks, so that each rail is prevented from creeping away from the other. The other flanges are secured to the sleeper by clamps D<2>. The sides of the rails not provided with the blocks are cut away to form a lap joint as shown in Fig. 2.
Patent GB-632136-A (GB)
Title: Improvements in hand-operated guillotines
IPC: B23D17/08
Filed: 1948-01-29
Abstract: 632,136. Shearing. TYM, J. Jan. 29, 1948, No. 2703. [Class 83 (iv)] In a hand-operated pivoted blade shearing-machine with a blade 3 actuated by a hand lever 4 through a link 5, a work-table 6 slotted to receive the blades is secured to the frame 1 by angles 7 and carries work-gauging stops 8, 9. The table may be graduated.
Patent GB-304482-A (GB)
Title: Improvements in plug cocks or valves
IPC: F16K5/16
Filed: 1928-01-28
Abstract: 304,482. Downs, J., and Watts, Fincham, & Co., Ltd. Jan. 28, 1928. Wedging or jamming. - A rotary conical plug cock, maintained tight in its seating by a spring 15 at its larger end, is evenly eased therefrom to facilitate rotation by tapered pegs 26 engaging corresponding recesses 27 in the end of the plug or in bushes screwed therein, the pegs being carried by a plate 25 pivotally mounted between lugs 24 on a flange 22 of the operating spindle 20.
Patent GB-621979-A (GB)
Title: Improvements in and relating to optical glass
IPC: C03C3/23
Filed: 1947-01-29
Abstract: 621,979. Optical glass. KODAK, Ltd Jan. 29, 1947, No. 2808. Convention date, Jan. 29, 1946. Drawings to Specification. [Class 56] Optical glass is made from a batch preponderantly of germanium oxide and containing at least 10 per cent. by weight alkali fluoride with or without titanium oxide. Preferred glasses having refractive indices above 1.70 and dispersive indices below 28 contain at least 15 per cent TiO 2  at least 15 per cent NaF and/or KF, and 38-70 per cent GeO 2 . The mixed anhydrous raw materials are stirred while heated in a covered platinum or " Vycor " (R.T.M.) crucible at 1100‹-1300‹C. when the GeO 2  is not over 85 per cent, but at higher temperatures and for a longer time when the GeO 2  or TiO 2  content is higher. The glass is poured into a mould heated to 420‹-460‹C. and cooled slowly. The composition by weight of some examples are (1) 15 per cent NaF, 20 per cent TiO 2 , 65 per cent GeO,; (2) 21 per cent NaF, 21 per cent TiO 2 , 58 per cent GeO 2 ; (3) 21 per cent KF, 23 per cent TiO 2 , 56 per cent GeO 2 ; (4) 30 per cent NaF, 30 per cent TiO 2 , 40 per cent GeO 2 ; (5) 20 per cent NaF, 10 per cent TiO 2 , 70 per cent GeO 2 ; and (6) 10 per cent NaF, 90 per cent GeO 2 . Some optical properties and the compositions in mols. per cent are given.
Patent GB-773674-A (GB)
Title: Improvements in or relating to clothes washing machines
IPC: D06F13/00
Filed: 1952-12-17
Abstract: 773,674. Washing machines. AKTIEBOLAGET ELEKTROLUX. Dec. 17, 1952 [Dec. 21, 1951], No. 2814/55. Divided out of 773,673. Drawings to Specification. Class 138 (2). The washing machine of Specification 773,673 has perforations in the upper edge of the clothes receptacle communicating with an annular channel connected to a discharge pipe leading to waste so as to allow overflow rinsing, and the claims relate to automatic means controlling the operation of the machine. The washing period is followed by three or four automatic rinses, the first being in tepid water, and the second and third in cold water with overflow for part of the time. The agitator is oscillated for part of the first three rinses, and for two separate periods in the fourth which is an overflow rinse. Locking mechanism such as that described in Specification 705,736 may be provided to ensure that the cover is in place for the fourth rinse and the squeeze period. Reference has been directed by the Comptroller to Specifications 643,486, 654,254 and 670,359.
Patent GB-367534-A (GB)
Title: Improvements in or relating to arc lamp electrodes
IPC: H05B31/06
Filed: 1931-01-28
Abstract: 367,534. Arc-lamp electrodes. CONRADTY, E. and CONRADTY, 0., (trading as CONRADTY, C.), 9, Spittlertorgraben, Nuremberg, Germany. Jan. 28, 1931, No. 2835. [Class 39 (i).] As a binding material for the cores of cored arc-lamp electrodes natural or artificial resins are employed. In some cases, such as electrodes for ultra-violet treatment, balsamic resins, such as myrrh, benzoin or storax are employed to give a pleasant smell.