baber/WOPTO huggingface dataset:
Patent GB-685460-A (GB)
Title: Improvements relating to the manufacture of artificial staple fibre
IPC: D01G1/00
Filed: 1949-11-08
Abstract: In the manufacture of viscose rayon staple fibre the tow from the spinnerets is first deacidified, desulphurized and bleached, then cut into staple lengths, and the cut staple is treated with acid, washed and soaped or softened.  If the cut tow is not sufficiently opened out, an alkali metal carbonate or bicarbonate, e.g. 0.5 per cent of sodium bicarbonate, may be added to the bleaching solution, or a treatment with an aqueous solution of an alkali metal carbonate or bicarbonate may be interposed between the bleaching treatment and the following acid treatment.  This alkali treatment may take place before the cutting.  The resulting evolution of carbon dioxide opens out the cut tow.
Patent GB-1212207-A (GB)
Title: Treatment of soap
Inventor: CRASKE JOHN DAVID
IPC: C11D13/02
Filed: 1967-06-21
Abstract: 1,212,207. Treatment of soap. UNILEVER Ltd. (Unilever Australia Pty. Ltd.). 18 June, 1968 [21 June, 1967], No. 28652/67. Heading C5D. A process for the preparation of a soap, which includes the step of treating a system containing a fluid soap at any stage during the manufacture of the soap with an alkali metal borohydride, preferably 0À005 to 0À30% by weight of the fat charge, at a pH of at least 9À5.
Patent GB-391132-A (GB)
Title: Improvements in or relating to motor vehicles
IPC: B60K17/30
Filed: 1931-10-15
Abstract: 391,132. Motor-vehicle driving-gearing and axles. KINNISON, C. H., 17, Berkeley Street, London, and HAWKES, W. D., 27, Rue des Varebois, Courbevoie, Seine, France. Oct. 15, 1931, No. 28719. Convention date, Sept. 3. Addition to 389,895. [Classes 79 (ii), 79 (iv), and 79 (v).] The pivoted half-axle 1 and stub-axle 16 described in the parent Specification, the stubaxle being pivoted to the half-axle at 12, 13 for steering movement only, are provided with overlapping portions 35, 37 in the neighbourhood of their pivotal connections forming an oil-retaining casing which encloses the universal joint 29 driving the road wheel 11 and which is closed in all positions of the stub-axle. In the construction shown the stub-axle 16 has attached thereto a part-spherical member 36 carrying the steering pivots 12, 13 and having a ring member 37 secured thereto by screws 38, this ring member fitting over a part-spherical extension 35 of the half-axle 1. The road wheel 11 rotates on bearings 14, 15 on the stub-axle.
Patent GB-264624-A (GB)
Title: Improvements in or relating to belts for grinding, "sanding" and like finishing machines
IPC: B24D11/00
Filed: 1925-11-14
Abstract: 264,624. Critchley, H. Nov. 14, 1925. Tools; flexible strips coated with abrading- materials.-An abrasive belt for grinding, sanding, &c. mouldings &c. consists of a flexible cloth backing a to which are secured longitudinal spaced strips of abrasive fabric b<1>, b<2>, in number according to the operations to be performed by the belt. Instead of separate strips b<1>, b<2>, a single broad strip having strips coated with abrasive may be employed, or the abrasive may be secured directly to the backing. Specification 264,625 is referred to.
Patent GB-1263882-A (GB)
Title: Electro-mechanical transducers
Inventor: SCHMIDT KARL
IPC: G04C3/16
Filed: 1970-06-13
Abstract: 1,263,882. Electric motors. GEHAP GES FUER HANDEL UND PATENTVERWERTUNG m.b.H. & CO. K.G. 13 June, 1970, No. 28747/70. Addition to 1,223,292. Heading H2A. In a tuning fork stabilized transducer as disclosed in parent Specification, the tuning fork is made partly of permanently magnetic material or carries at least one permanent magnet so that it is excited directly by the rotor driving windings. As shown, the prong of the fork 15 adjacent the core 3 carries a permanent magnet 16. The other prong may carry a similar magnet 17 or a balancing weight. In a modification, Fig. 2 (not shown) magnets are mounted on the insides of the prongs and the core 3 carrying the windings 1, 2, is mounted between the magnets. In a modification, Fig. 3 (not shown) of the Fig. 2 embodiment one prong carries a further magnet (20) adjacent which is mounted a magnetic field dependent resistor (22) connected to the base of the transistor 10 to provide further stabilization of the circuit. The tuning fork may be replaced by other mechanical resonators or balance wheel oscillators.
Patent GB-1461114-A (GB)
Title: Cap remover
IPC: B67B7/16
Filed: 1974-06-28
Abstract: 1461114 Cap remover for beer casks HEINEKEN TECHNISCH BEHEER BV 28 June 1974 [3 July 1973] 28748/74 Heading B8T A U-shaped cap-stripping member 22 has its closed end secured to brackets 18, 19 which are mounted on a framework pivoted to a fixed girder 7 such that the member 22 moves according to arrows 15, 16 on contacting a container 8 being conveyed in direction 15 until the member is located beneath the container when the spring 17 returns the member to its original position whereby a cap 24 is stripped from the container opening 23. The pivoted framework may be a parallelogram system 7, 12, 13, 14 as shown or a single pivoted member. A guide roller 21 is centrally disposed above the closed end of the member 22. A chain conveyer is accommodated in a U-section beam structure 1 having guide rails 9 either side thereof.
Patent GB-914599-A (GB)
Title: Improvements in and relating to heterogeneous nuclear reactors
Inventor: HARTNELL-BEAVIS MICHAEL CAR L
IPC: G21C15/02
Filed: 1960-08-19
Abstract: 914,599. Nuclear reactors. GENERAL ELECTRIC CO. Ltd. July 20, 1961 [Aug. 19, 1960], No. 28798/60. Class 39 (4). A heterogeneous nuclear reactor comprises a core of moderating material containing channels 2 in which canned fuel elements are located and through which coolant flows, wherein means are provided for varying, in accordance with the neutron flux distribution along each channel, the coolant mass flow over the fuel elements to ensure a substantially uniform can temperature of the fuel elements disposed along a substantial length of the channel. The fuel element 2 is surrounded by porous graphite sleeves and is placed within a fuel channel 3. The hottest part of the fuel element is its mid-part, and the sleeve 1b surrounding this part contains holes 4 which are larger than holes in any other sleeve. The holes are aligned with recesses 5, and the coolant flows through the recesses and also in the gap between the sleeve and the fuel element, the hottest part of the element 2 has more coolant flowing over it due to the fact that the holes 4 in its vicinity are larger than any other holes. The recesses 5 may be continuous along the length of the channel and blocked at the point of highest temperature so that coolant flowing in the recesses must pass inwards to the main coolant stream, and after cooling the hottest part of the fuel element, flow back into the recess further upstream. The effect attained by varying the holes 4 may also be reached by varying the size and/or height of the recesses 5, and using only one design of sleeve throughout. It is also possible to arrange the necessary recesses in the external wall of the sleeve.
Patent GB-617312-A (GB)
Title: Improvements in or relating to superheterodyne radio-receivers with image-frequency suppression
IPC: H03D7/18
Filed: 1946-09-26
Abstract: 617,312. Impedance networks. PHILIPS LAMPS, Ltd. Sept. 26, 1946, No. 28806. Convention date, March 3, 1943. [Class 40 (viii)] An image frequency suppression arrangement for a superheterodyne receiver comprising an oscillatory imput circuit 14 inductively coupled to the aerial circuit through a medium-wave coupling coil 5 and through a long wave coupling coil 3, consists of a parallel connection of a condenser 4 with the coil 3, the whole being in series with a coil 2 which is capacitatively but not inductively coupled to the input circuit and which has a natural frequency exceeding the image frequency to be suppressed and an inductance which is smaller than that of the coil 5. In a modification coil 2 may be a tapped-off portion of coil 5. The circuit 2, 3 and 4 may be disconnected by a switch 1 on changing to medium wave reception. The capacity 13 coupling coil 2 to the circuit 14 may be the natural parasitic capacity inherent in the construction. The condenser 4 may be adjustable to suppress the image frequency over a wide tuning range. If, however, in addition to the inductive coupling, the aerial is coupled to the circuit 14 by a variable condenser, suppression over a wide range can be affected by adjusting this, condenser 4 remaining fixed.
Patent GB-726409-A (GB)
Title: Apparatus for automatically charging electric storage batteries
IPC: H02J7/12
Filed: 1953-10-19
Abstract: 726,409. Battery charging systems. AKT.- GES. FUR UNTERNEHMUNGEN DER EISENUND STAHLINDUSTRIE. Oct. 19, 1953 [Oct. 20, 1952], No. 28813/53. Class 38 (4). A system for charging a battery 7 from an A.C. source 1 over a rectifier 4, providing for the maintenance of a substantially constant charging current at full rate until the battery attains its fully-charged voltage and then for an abrupt reduction of the charging current to a low value, comprises a transductor 8 in the input circuit of the rectifier controlled by a regulating transductor 18. The last has a D.C. winding 19 carrying the charging current, an assisting winding 20 of constant excitation obtained from the source 1 over a rectifier 24, and an opposing winding 21 energized in proportion to the battery voltage. The A.C. traversing the transductor is rectified at 15 to energize a D.C. winding 14 of the charging transductor 8 which is also provided with a feed-back winding 13 assisting winding 14 and carrying the charging current. During charging, the effects of windings 19, 20 maintain the transductor 18, and consequently transductor 8 also, in a low impedance condition, but upon the battery reaching a given voltage, winding 21 becomes effective to increase the impedance, and the consequent current changes in windings 19, 13, 14 produce a cumulative effect which results in both transductors quickly changing over to a high impedance condition.
Patent GB-975176-A (GB)
Title: Optical screens and their production
IPC: G02B1/11
Filed: 1961-08-09
Abstract: A method of producing a stabilized coating to decrease specular reflection on the screen of a cathode-ray tube comprises coating the glass surface with an alkali silicate solution in droplet form, the droplet coating being thermally vitrified to form minute nodular protuberances on the surface, and leaching the surface to reduce the alkali content.  The surface of the screen is cleaned with 5% ammonium bifluoride or alkali detergent solution, rinsed and dried, then coated with an aqueous solution of sodium silicate or water glass in droplet form from a commercial traversing spray mechanism. The spray solution may also contain minor amounts of a compatible silicone (e.g. an aqueous emulsion of dimethyl or phenyl methyl siloxane emulsified with an organic amine emulsifier) and colorants. The addition of small amounts of boric oxide, boric acid or borax to give 10% boric oxide in the final coating is particularly desirable. The coating solution is dehydrated for half an hour and baked at 375-400 DEG  C. for one hour and rapidly cooled.  The surface is leached of excess alkali by dipping in 10% hydrochloric acid for two minutes or by introducing sulphur dioxide (under 0.1%) in the lehr during the latter part of the vitrification process.  Specification 877,363 is referred to.
Patent GB-464435-A (GB)
Title: Improvements in or relating to arrangements for automatically regulating wattless power in electric circuits by means of condensers
IPC: G05F1/70
Filed: 1935-10-18
Abstract: 464,435. Automatic control systems. HELIOWATT WERKE ELEKTRIZITAETSAKT.-GES. Oct. 18, 1935, No. 28850. Convention date, Oct. 29, 1934. [Class 38 (iv)] Power factor.-The wattless power in electric circuits is regulated automatically by a relay which switches condensers in or out as required. The relay resembles the electric system of a wattless consumption meter and includes a shaft operating the switches and having retarding means which are less effective in the capacitative than in the inductive direction of rotation. The vertical shaft y of the relay is normally balanced under the opposed effect of capacitative and inductive loading. When, however, these effects are not equal, shaft y rotates shaft W which by cams, operating switches such as b<1>, controls relays adapted to cut in or cut out in succession relavs such as d<1>. The shaft W may be driven through worm gear and a slipping clutch k and its movement may be limited by a stop X. The movements of the shaft Z may be retarded and it may be biassed to one position by springs or by magnetic devices such as the hook a on the shaft cooperating with magnet NS which may be adjusted to vary the biassing force. The different values which the biassing forces may have for the two directions of rotation may be obtained by a star s on shaft z subjected to the action of two magnets c<1>, c<2> as shown in Fig. 2a. Electromagnets with means for varying their excitation may be used.
Patent GB-810150-A (GB)
Title: Improvements relating to dust bins
IPC: B65F1/02
Filed: 1956-09-21
Abstract: 810,150. Dust bins. SIMS, W. H. Sept. 20, 1957 [Sept. 21, 1956], No. 28858/56. Class 26. In a dust bin having two handles 18 there are two corrugated panels or swaged areas 20 approximately midway between the handles. The corrugations 20 are of a rather wide and shallow shape with a groove 20c of the opposite contour in some or all of the valleys 20a or on the peaks 20b or both. These grooves or some of them are fitted with wires. The bin has an outwardly rolled top edge 11 and top hoop 12 and a bottom 13 with an upturned flange 14 fitted therein a bottom hoop 15 being fitted outside the body with one edge fitting against a swaging 16 and the other 17 fitting over the edge of the body 10.
Patent GB-247684-A (GB)
Title: Improvements in or relating to the manufacture of ornaments
IPC: B44C1/26
Filed: 1924-12-03
Abstract: 247,684. Winston, A. Dec. 3, 1924. Flower-vases and like receptacles.-Ornaments such as vases are made entirely of metallic alloys of sulphur known as niells by casting to the desired shape in a mould which is subsequently removed either by a solvent or by electrolysis. The mould is preferably of silver and is heated to a red heat before the casting operation. Specification 124,957, [Class 56, Glass], is referred to.
Patent GB-192750-A (GB)
Title: Improvements in or relating to machines for making tubular articles such as paper cartons or receptacles
IPC: B31C1/06
Filed: 1921-11-01
Abstract: 192,750. Jackson, W. J. Mellersh-, (International Paper Co.). Nov. 1, 1921. Dropping-roller and like sheet feeds; pile tables and supports for sheet-feeds; sheet-separators.-Blanks for forming tubular articles such as paper cartons, are fed from piles A, B at each end of a machine, Fig. 1, each pile being carried on a plate 30 of a frame 31, 32 slidably mounted in a holder 24 and urged upwards by a counterweight 44 attached to chains 38 fixed to the frame and passing over wheels 41, 42 carried by a shaft 43 journaled in the holder and carrying another wheel 45 connected by a chain with a sprocket on a shaft carrying a fusee wheel, a weight carried by a cord passing around the fusee wheel equalizes the elevating force on the holder 30 as the weight of the pile of blanks decreases. The blanks are introduced into the holder through a hinged door 26, Fig. 9, normally retained in the vertical closed position by spring controlled locking bolts and are forced upwards against a spring controlled bar 54 at one end of the machine frame and pivoted fingers 81 at the sides thereof; the fingers are carried by rock shafts 81<x>, 82 journalled respectively in the machine frame and door 26 and connected together by crank arms and links, one of the link and crank connections 91, 94 being detachable to allow the opening of the door 26. The topmost blank is also engaged by pivoted stop fingers 56 having depending lugs 58 with extensions 59 slightly spaced from the blank and by fingers 60 mounted on a rock-shaft 61 actuated by a cam on a shaft 63. A shaft 68 carries flexing-fingers 67 and blank advancing fingers 78, both sets cf fingers being provided with gripping surfaces 69, 79 and the shaft being driven at a variable speed so that the flexing-fingers engage the blank at a comparatively slow speed and the advancing fingers at a rapid speed. As the fingers 67 engage the topmost blank, the fingers 81 are rocked outwardly to release the blank, which is drawn from beneath the bar 54 and lugs 58 and flexed, the forward end of the blank being still held by the fingers 60. As soon as the fingers 67 disengage the flexed blank, the rear end thereof contacts with the lugs 58, the fingers 81 are rocked to engage the next blank, and the fingers 60 are lifted, the flexed blank then straightening out and thrusting its inner end between the terminals of an electric circuit. The fingers 78 then engage tho blank and feed it into the bite of a feeding-drum 76 and presser roller 74, the breaking of the circuit allowing a counterweight 75<c> to lift the roller 74 into engagement with the drum.
Patent GB-370358-A (GB)
Title: Method for the manufacture of articles of artificial stone in a centrifugal mould
IPC: B28B11/08
Filed: 1930-09-29
Abstract: Articles of artificial stone such as hollow poles are moulded from a mixture of water, cement and broken marble or other material in a centrifugal mould.  The cement may be coloured with marble polish and the mixture, without any sand, is centrifuged until the broken stone has become deposited against the wall of the mould.  The centrifuging process may be continued until only sufficient water for hardening remains in the mass which is then allowed to harden and is afterwards polished.  The mixture may consist of equal parts of cement and marble which is centrifuged for 7-10 minutes and then left to harden for 3-4 days.
Patent GB-248461-A (GB)
Title: Improvements relating to dampers for furnaces and the like
IPC: F23L13/00
Filed: 1924-12-04
Abstract: 248,461. Clegg, J. Dec. 4, 1924. Packing for flat plates. - A damper plate A is slidably mounted in a casing D having converging sides d on which rest slide blocks Beach comprising a vice or clip with a detachable jaw b to hold asbestos or other packing C. The blocks B are guided by ribs d<2> and are pivotally connected to levers b<2> fulcrummed in the sides of the casing D and passing through slots d<3> in the end of the casing. A curved bridge piece b<5> connects together the bent-up ends of the levers b<2>, being detachably fixed to the levers by bolts b<7> and slotted lugs b<6>. Pivoted to the end of the casing is a hand lever b<8> carrying an adjustably-mounted roller b<9> adapted to engage with the curved bridge piece b<5> which has stepped surfaces b<10> for maintaining the roller at one side or the other of the curved portion. Rocking the hand lever b<8> in either direction depresses the bridge piece b<5> and turns the levers b<2> so as to raise the blocks B.
Patent GB-1246570-A (GB)
Title: Improvements in and relating to hinges on box components
IPC: B65D6/18
Filed: 1969-06-09
Abstract: 1,246,570. Boxes. BERGH BROS. CO. Inc. 9 June, 1969 [17 Sept., 1968], No. 29087/69. Heading B8P. [Also in Division E2] The leaf of a hinge 16 for hinging a lid (14) to a box (12) is secured to an elongated steel strip 20 which is held against the inside of the back wall 18d of a wall member 18 by a bottom 22 which fits tightly within the wall member 18. The wall member 18 is formed from a bent metal strip, the ends of which are joined by male and female connectors and it is provided with upper and lower flanges 28, 30. The bottom 22 may be covered by a pad 24 of urethane foam and an insert member 26 of heavy paper or cardboard is sprung into the wall member 18 and is retained by side flaps 54 on the insert engaging under the upper flange 28 of the wall member 18. The lid is of similar construction and a final covering of silk may be applied to the insides of the lid and box.
Patent GB-1413186-A (GB)
Title: Process for encapsulation of medicaments
IPC: A61K9/16
Filed: 1973-06-19
Abstract: 1413186 Encapsulating medicaments TOYO JOZO CO Ltd 19 June 1973 29112/73 Heading B8C [Also in Division A5] Water-insoluble and slightly water-soluble medicaments are encapsulated by dispersing or dissolving them in a solution of a film-forming material in an organic solvent (or mixture thereof) which is immiscible in water (or miscible up to no more than 10%), has a boiling point not above 100 C. and a dielectric constant not more than 10, dispersing the solution or dispersion thus obtained in a vehicle comprising an aqueous solution of a hydrophilic colloid or surface active agent and causing the organic solvent to evaporate, e.g. by heating. Suitable film-forming materials are cellulose derivatives and synthetic polymers, e.g. polyvinyl acetate, polyvinyl formal, polystyrene, polycarbonates, polyesters, polybutadiene and various copolymers. Numerous medicaments are mentioned including antibiotics, steroids and various other substances, e.g. phenacetin, diazepam, hexobarbital, strychnine nitrate.
Patent GB-443652-A (GB)
Title: Process for marking photographic pack films
IPC: G03C11/02
Filed: 1934-10-11
Abstract: 443,652. Photographic film - packs. GROVES, W. W., 30, Southampton Buildings, Chancery Lane, London.-(I. G. Farbenindustrie Akt.-Ges. ; Frankfort-on-Main, Germany) Oct. 11, 1934, No. 29149. [Class 98 (i)] In the manufacture of film-packs, the number on each draw-tab is copied by episcopic projection, preferably on a reduced scale, on to the margin of the film to which the tab has been attached. Other matter relating to the kind of film may be similarly copied either simultaneously or subsequently. In the apparatus shown, the tab c of the backing to which a film a has been attached at p rests beneath a hood n enclosing lamps l for lighting the tab number, and an image of the number is projected, through a bent tube o fitted with reflectors g and a lens h, on to the margin of the film a, producing a latent image therein. Contact of the hood n and tube o with tab and film is rendered light-tight by rubber, plush, or velvet.