baber/WOPTO huggingface dataset:
Patent GB-1511997-A (GB)
Title: Method for purification and isolation of hepatitis virus for use in the preparation of vaccine
IPC: C07K14/02
Filed: 1977-03-17
Abstract: 1511997 Purifying hepatitis B virus surface antigen KABI AB 17 March 1977 [18 March 1976] 11415/77 Heading A5B [Also in Divisions C3 and C6] Hepatitis B virus surface antigen, HB 5 Ag, is purified and isolated by adsorption on a sulphated carbohydrate. A preparation containing the virus is brought into contact with agarose-bound dextran sulphate, heparin or chondroitin sulphate e.g. packed in a column, and the virus is desorbed from the loaded adsorbent by elution with a buffer of pH 6-9 containing a sufficiently high salt concentration. Lipoproteins may be precipitated by 8% polyvinyl pyrrolidone and discarded. Vaccines are produced by further purifying the viral material by gel filtration and dispersing the practically pure hepatitis virus material in a pharmaceutically acceptable medium.
Patent GB-1467420-A (GB)
Title: Process for preserving cellulosic materials
IPC: B27K3/34
Filed: 1973-03-09
Abstract: 1467420 Wood preservation ALBRIGHT & WILSON Ltd 11 March 1974 [9 March 1973 15 June 1973] 11419/73 and 28544/73 Heading A5E Wood is preserved by treatment with an aqueous liquor containing 0.01-0.4% by wt. of an organotin compound having three organic groups bound to a tin atom through Sn-C lends and a mono-quaternary ammonium compound in a amount sufficient to disperse the organotin compound (e.g. 0.02-5% by wt.) under conditions providing a leading of 0.15- 1.5 Kg of organotin compound/cu metre of wood. Specified organotin compounds are bis (tri-n-butyltin) oxide, bis (tri-n-butyl tin) sulphide, and tri-n-butyl tin acetate, acrylate, methacrylate, phosphate and chloride. The corresponding trihexyltin, tricyclohexyltin and triphenyltin compounds are also of particular use. Particular quaternary ammonium compounds used include benzalkonium chlorides of the formula: C6H5. CH2N(CH3)2-R<+>Cl<-> where R is a mixture of alkyl groups having 8-18 carbon atoms, benzethonium chloride, hexadecyl pyridinium halides, hexadecyl trimethyl ammonium bromide, phenoxyethyl dimethyl dodecyl ammonium bromide, di-n-octyl dimethyl ammonium bromide and n-dodecylbenzyl trimethyl ammonium chloride. Compositions for use in the process are conveniently made in the form of a concentrate containing 1-20% by wt. of organotin compound and 20-90% by wt. of quaternary compound in water.
Patent GB-1000596-A (GB)
Title: Article vending machine
IPC: G07F11/04
Filed: 1963-03-22
Abstract: 1,000,596. Coin-freed vending apparatus. C. L. HAWKS. March 22, 1963, No. 11465/63. Heading G4V. Articles, such as newspapers 44, are stored sideby-side in a housing 10 of a vending machine and dispensed through a slot 46, Fig. 1, by mechanism controlled by a handle 38, the dispensing mechanism including a rack member 56, Fig. 2, which is provided with gripping elements on its side face for contacting the end newspaper in the stack and mounted for cyclic movement through an isosceles trapezoidal path. Several coin shoots 88, Fig. 4, are provided so as to permit a dispensing operation by inserting one coin into a single shoot or a number of coins in corresponding shoots. Each shoot can be made operative as deaired by means of a pullrod 122 which acts through a cam lever 120 and rocker arm 110 to move a trigger 96 into and out of engagement with a locking plate 106. Each coin inserted acts as an abutment 132 against a stop-pin 94 so as to release the corresponding trigger from the locking plate, thereby permitting the dispensing handle 38 to be rotated about its pivot 70. Movement of the handle causes a link 74, Fig. 2, to pivot about a pin 76 and a slotted link 50 about a pin 78 so as to impart a reciprocating motion through a double hinged link 54 to a dispensing member 56. The rack member 56 has lugs 58 on its upper and lower faces for guiding the member around tracks which are formed on upper and lower members 60, the track being so formed, as shown in Fig. 3, that movement is effected anticlockwise around grooves 64, 65, 66. The stack of newspapers are urged towards the dispensing position by a wheeled follower 42 co-operating with a ramp 40, and a window 32 is provided for viewing the headlines.
Patent GB-114891-A (GB)
IPC: B64C25/00
Abstract: 114,891. Moore, E. H. April 18, 1917. Shock of landing, deadening; land wheels.-A landing chassis comprises a frame having means for guiding the end of a wheel axle against the resistance of a pair of opposed semi-elliptic springs connected together by links and secured respectively to the axle and frame. A single axle carrying two wheels may be used, or separate axles, each having a wheel at one end and pivoted at its other end to a member depending from the machine, may be employed. Fig. 2 shows a side view of a chassis having a single axle. Two side frames each comprise two convergent members A, B connected at their lower ends by a plate C on the outside of which two angle members D are secured. The lower ends of the members D are bent outwardly at D<2> to form a bracket to which is secured a gusset plate G for connecting the side frame to one of two inclined members F, F' extending to the machine frame. A plate E, which may be part of the plate C is secured to the parts D<2> and carries a spring M. The ends of the spring M are connected by links N to a spring L secured to a member K on the axle guided between the members D. Fig. 3 shows a front view of a modification in which two axles H are used pivoted at their outer ends to members O depending from the planes. In this form, a central frame similar to that shown in Fig. 2 is used, but the side members are brought close together at their lower ends and the gusset plate G secured between them. The gusset plate has an extension G<1> slotted at G<2> to take pins or rollers K<3> carried by cheeks K<2> on the inner ends of the axle and embracing the plate extensions G<1>. A spring suspension similar to that shown in Fig. 2 is used, but the links N are jointed at their centres to compensate for the curvilinear movement of the axle ends.
Patent GB-261615-A (GB)
Title: Playing apparatus for guitars and similar musical instruments
IPC: G10D3/08
Filed: 1926-05-01
Abstract: 261,615. Schmidt, T. May 1, 1926. Keyboard stringed instruments.- In a string- stopping device for preparing chords on a guitar &c., the appropriate presser-fingers pivoted over the strings are swung into vertical position by key -operated means, and the whole device is then pressed down by hand, against spring action, to stop the strings. Over each string are arranged three presser-fingers 13, swinging on shafts 12 and operated respectively by slides 11 arranged also in groups of three over each string. Movement of a slide 11 in either direction moves its presserfinger 13 against the action of a spring 18 into vertical position by means of projections 14, 15 which engage upper or lower pins 16, 17 on the presser-finger. The slides 11 are notched as required, at 19, for engagement in one or the other direction by teeth 21 on the oscillating finger. pieces 23 pivoted at 20. Separate chords are thus obtainable by moving the finger-pieces 23, which are returned to their central positions by blade springs, in opposite directions. Operation of a finger-piece is followed by pressing on the cover of the case 8, which is pivoted on a longitudinal side rod and supported by a spring, to press the fingers 13 on to the strings. The device is attached to the guitar neck by feet 2, screws 3 and straps 4.
Patent GB-1186061-A (GB)
Title: Benzonaphthyridine Derivatives
IPC: C07D471/04
Filed: 1967-03-13
Abstract: 1,186,061. Benzo - [6][1,6] - naphthyridines. AMERICAN HOME PRODUCTS CORP. 13 March, 1967 [14 March, 1966], No. 11601/67. Heading C2C. Novel 1,2,3,4 - tetrahydro - benzo - [61[1,6] . naphthyridines of the general formula wherein R<SP>1</SP> is hydrogen, a halogen, nitro, lower alkyl or lower alkoxy, R<SP>2</SP> is hydrogen, lower alkyl, phenyl, halophenyl, lower alkyl-phenyl, phenyl-lower alkyl, lower alkanoyl, lower alkylsulphonyl, phenyl-sulphonyl, lower alkyl-carbamoyl, di-lower alkyl-carbamoyl, lower alkoxylower alkyl, di-lower alkylamino-lower alkyl or benzoyl and R<SP>3</SP> and R<SP>4</SP> are each hydrogen, lower alkyl, di-lower alkyl-phenyl, halophenyl, lower alkyl-phenyl, lower alkoxy-phenyl or phenyl-lower alkyl, the term " lower " meaning that the radical referred to contains up to 6 carbon atoms, and pharmaceutically acceptable acid addition salts thereof are prepared by reaction of a 2-aminobenzonitrile and a 4- piperidone of the respective general formulµ followed by optional conversion of the product to a pharmaceutically acceptable acid addition salt thereof. Pharmaceutical compositions having central nervous system depressant and analgesic activity comprises as active ingredient, a 1,2,3,4- tetrahydro - benzo - [6][1,6] - naphthyridine of the first general formula above or a pharmaceutically acceptable acid addition salt thereof, together with a pharmaceutically acceptable carrier, and may be administered orally or parenterally.
Patent GB-105019-A (GB)
Title: Self-locking Apparatus for Machine Covers or Guards.
Inventor: STODART DAVID
IPC: A21C1/14
Filed: 1916-08-18
Abstract: 105,019. Stodart, D., and Bletcher, A. Aug. 18, 1916. Guards, controlling.-The cover B of a machine for mixing or kneading dough, or other machine, is locked in the closed position whilst the machine is in motion. The two parts D, E of a clutch, respectively on the ends of a spindle F' and stud F<1> pivoted in the cover B, engage when the cover is closed, and are rotated by a belt L or otherwise from a moving part of the machine. The cover cannot be lifted until the clutch parts are brought to rest in a suitable position by stopping the machine.
Patent GB-113914-A (GB)
Title: Improvements in or relating to Augers and like Tools.
IPC: B27G15/00
Filed: 1917-08-16
Abstract: 113,914. Sorby & Sons, R., and Booth, R. J. Aug. 16, 1917. T-shaped handles; multiple-tool handles; fixing by self-grip sockets of special form.-The part A of an auger having the eye A' for the handle is made separate from the shank D, and is formed with a socket B and a flat sided recess C to receive the correspondingly formed end E of the shank D. The flats may be tapered to produce a wedging or jamming action to hold the parts together. Several sizes of auger may be made to fit one handle.
Patent GB-118057-A (GB)
IPC: G02C9/02
Abstract: 118,057. Shoemaker, C. B. Feb. 5, 1918. Goggles.-A nose-piece carries collapsible vizors 4 on either side which, in the form shown, are mounted on eye-glasses. The nose-piece carries two casings 3, the curvature of which corresponds to the upper edge of the lenses and in which the vizor is housed when folded. The vizor 4 is in the form of a spherical segment formed of flexible material and braced by means of arcuate ribs 5 mounted on screws 6, 11 which act as pintles. A spring 7 on the screw 6 between the casing 3 and the outermost rib exerts a pressure so as to hold the vizor in position when closed. When not intended to be combined with eye-glasses, the tiange 10 which fits around the lens is omitted and the nose-piece itself acts as the pintle 11.
Patent GB-1041156-A (GB)
Title: Compensating presser foot for sewing machines
IPC: D05B29/08
Filed: 1965-03-19
Abstract: 1,041,156. Sewing machines. MAN-SEW CORPORATION. March 19, 1965 [March 25, 1964], No. 11857/65. Addition to 915349. Heading D1G. A sewing machine presser foot comprises a shank portion fixable to the presser bar and having portions extending respectively forwards and rearwards in the direction of seam formation, a support member pivotally mounted to the forwardly extending portion, and a main presser shoe connected to said support member by deformable, elastic material. A shank 420 is formed intermediately with a channel 421 which is secured by a screw to the needle bar. A support bar 433 is pivoted intermediately at 432 to the forwardly-extending end 423 of shank 420 and is formed at each end with an aperture bushed with a rubber grommet 438. Pins 439 passing through the grommets support the forward end 442 and the rear end 443 of a main shoe 430. Pin 439 at end 442 also supports a link 456 to which is pivoted at 459 the forward end of a side shoe 455, the rear end of which is formed with a vertical slot through which pin 439 at end 443 passes. A leaf spring 464 secured to shank 420 bears against shoe 455 to bias the latter downwardly, and pin 459 engages a notch 442a in end 442 to bias shoe 430 downwardly. The arrangement is thereby such that shoe 455 can rise independently of shoe 430 to admit a greater member of plies thereunder. The additional plies being guided by the adjacent side surface of shoe 430. A front shoe 450 is pivoted at 439 to end 438 and is spring- biased downwards to a horizontal position abutting end 442 with its under surface slightly higher than the under surface of shoe 430. Shoe 450 can move a limited degree upwardly into abutment with end 442. A rear shoe 470 is carried by a support 476 pivoted at 475 to a support 474 which is secured by a screw 472 to the rear end 424 of shank 420. Screw 472 passes freely through an aperture in an extension of support 476, and a nut 479 on screw 472 encloses a rubber bush 478 which abuts said extension. Tightening of nut 479 thereby serves to bias shoe 470 downwardly. In a modification, shoe 455 is omitted and shoe 430 is made correspondingly wider, while shoes 450 and 470 are replaced by leaf spring members secured to ends 442 and 424 respectively.
Patent GB-784435-A (GB)
Title: Improvements relating to optical systems containing a concave spherical mirror and ameniscus
IPC: G02B17/08
Filed: 1955-04-26
Abstract: 784,435. Optical systems. NAAMLOOZE VENNOOTSCHAP OPTISCHE INDUSTRIE DE OUDE DELFT. April 26, 1955 [April 26, 1954], No. 12025/55. Class 97(1) In an optical system having a simple or compound meniscus lens for correcting the spherical aberation of a concave mirror, a substantially plane colour correcting plate, for correcting lateral chromatic aberation and any residual axial chromatic aberation of the meniscus lens, is arranged nearer the centre of curvature of the concave mirror than is the lens. Preferably, the meniscus lens VII, VIII has concentric external surfaces which are concentric with the surface of the mirror IX and the corrector plate V, VI may be placed at the centre of curvature of the mirror. A filter X may be provided between the mirror and the image surface F and, the axial chromatic aberration introduced thereby may be partly or completely eliminated by constructing the meniscus as a doublet which may have a plane interface R11. If the corrector plate is of large diameter the components are not cemented. Constructional data are given for the system shown and for similar systems. Specification 637,645 is referred to. Reference has been directed by the Comptroller to Specification 638,975.
Patent GB-353061-A (GB)
Title: Transmitting element for clutches
IPC: F16D13/68
Filed: 1930-04-16
Abstract: 353,061. Friction clutches. RUSSELL MANUFACTURING CO., Middletown, Connecticut, U.S.A.-(Assignees of Tower, E. V. J. ; Ferguson Avenue, North Syracuse, New York, U.S.A.) April 16, 1930, No. 12040. Convention date, March 8. [Class 80 (ii).] A friction clutch disc for use on motor vehicles is resiliently connected to its hub by radial bundles of leaf springs 32 placed in recesses in the disc and hub, the open ends of which are outwardly curved to relieve the springs of shearing stresses. The sheet-metal disc 13 has on each side an attached ring 27 bent outwardly to straddle the sides of the hub 12, or the disc itself and one attached ring may be bent in a similar manner. An additional loose connection 29, 30 is provided between the disc and the hub. Where the torsional-vibration periods of the motor under driving and coasting conditions differ, the curvature of the appropriate recess surfaces may be varied accordingly. The disc 13 has openings 14 defining non-radial spokes 15, the rim portion consisting of arcuate sections 17 each disposed in advance of a spoke in the direction of rotation and connected to the next spoke by a flexible bridging-strip 20. This construction facilitates cooling and is stated to damp out vibration in the disc. The rim has portions 23, 24, 25 bent out alternately on opposite sides to ensure progressive engagement of the attached facings 45. The disc may be built up, with separate spokes. Specification 353,885 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a modification in which the leaf-spring vibration-damper is omitted. This subject-matter does not appear in the Specification as accepted.
Patent GB-103956-A (GB)
Title: Improvements in and relating to Locks and Fastenings for Attache Cases, Trunks and the like.
Inventor: GAILLARD FRANK
IPC: E05B65/52
Filed: 1916-08-25
Abstract: 103,956. Gaillard, F. Aug. 25, 1916. Hasp fastenings. - Relates to hasp fastenings for trunks &c. of the pull-over loop type, and consists in means for increasing their security. As shown in Fig. 2, a rectangular part C is pivoted in slots C<2> in a casing B secured to one part to be fastened, and is capable of being raised in opposition to springs E and caused to engage a depression D' in a part D projecting from the other part to be fastened. A tongue D<2> on the part D engages a suitable recess in the casing B to ensure alinement of the two parts of the fastening. The part C is secured in engagement with the part D by a spring catch, which, in the form shown, comprises a lever F pivoted at F<3> to the casing B and having arms F<1>, which are caused to bear upon the axle of the part C by the action of a blade spring G upon an extension F<2> of the lever F. A lever lock may be employed to secure the axle of the part C. The Provisional Specification describes a spring catch consisting of a bowed spring bearing on the axle of the part C.
Patent GB-974290-A (GB)
Title: Squirrel-cage-type impeller
IPC: F04D29/28
Filed: 1963-03-27
Abstract: 974,290. Making impellers; welding by pressure. BRONSWERK N.V. March 27, 1963 [March 30, 1962], No. 12066/63. Headings B3A and B3R. [Also in Division Fl] A squirrel-cage type impeller in which each blade is connected at both end edges by resistance welding to an adjacent side element, comprises two side elements of a " U "-shaped radial cross-section having radially disposed short inner and outer flanges which are turned toward each other and to which are welded said blades at each end edge to both the inner and outer flanges of the adjacent ring so that the part of each end edge lying between the two welds is a short distance from the web of the ring. A plurality of blades 1 are positioned between a pair of axially inwardly facing " U "- shaped rings 2, 3 which are axially pressed together by a pair of electrodes 10, 11, after switching on the welding current the electrodes are moved further together until the end parts 8 of the blades are almost in contact with the webs 9 of the rings and each end edge 6, 7 is butt-welded to the flanges thereof. Alternatively pairs of rings 3<SP>1</SP>, 3<SP>11</SP> having an " L "- shaped cross-section may be used to effect a reduction in the current surges and to facilitate low amperage welding and the electrodes may comprise pairs of concentric rings 11<SP>1</SP>, 11<SP>11</SP>. The rings 3<SP>1</SP>, 311 are finally welded together at points along their circumference. In another embodiment the rings may comprise a number of segments which after being butt-welded to the blades are finally welded to complete a ring. The electrodes are similarly split into segments.
Patent GB-920236-A (GB)
Title: Improvements in and relating to foundry core binders
IPC: C08G16/02
Filed: 1961-04-05
Abstract: Foundry core binders are prepared by mixing (1) a non-polymerized aqueous mixture of formaldehyde, urea and equilibrium reaction products thereof, (2) urea and (3) furfuryl alcohol to form a solution which is adjusted to pH 5,0 to 6,5, refluxed at 95 DEG  to 105 DEG C. until the solution has a viscosity in the range of 350 to 300 centipoises if measured at 25 DEG C. and adjusted to pH 6,5 to 8,5.  The aqueous mixture (1) contains at most 15% by weight of water: the aqueous mixture and urea are used in such amounts that the molar ratio of total available urea to available formaldehyde is in the range of 1:1,75 to 1:3,0: the solution contains 15 to 50% by weight of furfuryl alcohol. The pH may be adjusted by means of aqueous phosphoric acid, sodium phosphate or sodium hydroxide.  The binders are mixed with sand and a catalyst such as ammonium chloride and the resultant compositions are used to prepare foundry cores. Examples are given.
Patent GB-758396-A (GB)
Title: Valve
IPC: F15B13/04
Filed: 1954-04-27
Abstract: 758,396. Interconnected valves. BENDIX AVIATION CORPORATION. April 27, 1954 [June 1, 1953], No. 12173/54. Class 135. [Also in Group XXXI] A valve device, particularly for controlling the servomotor in a power-assisted vehicle steering mechanism, comprises a casing through which a sliding actuating shaft 36 passes, a plate or plates 72, 74 projecting from the shaft and engaging two valves 84 (only one shown) which are arranged eccentrically of, and are movable in a direction parallel to, the axis of the casing, and, in the neutral position, the valves are pressure-balanced to a position mid-way between opposed seats 86, 88. In the embodiment shown, direct manual steering takes place through the steering shaft 36 and the usual gearing 44 when the resistance to steering is below a predetermined level. If the resistance is above this level, the output shaft 48 of the gearing will be relatively fixed when the steering movement is started and the shaft 36 will make a slight longitudinal movement carrying with it the two plates 72, 74. The valves 84 comprise two ball-headed pistons positioned side by side and head to tail between the plates 72, 74 which latter are positioned between ball races 52. Considering valve 84, there is, in the neutral position, a continual circulation of liquid between a pressure inlet chamber 80, an exhaust'chamber 94, and a passage 82 and an annular chamber 66 leading to one side of the servomotor. A second annular chamber 68, similar to chamber 66, leads to the other side of the servomotor and is associated with the other control valve. When shaft 36 moves longitudinally, the valves will alter differentially the restrictive action of the passages between each ball-head and its two seats, and a differential pressure will be set up across the servo-piston. The latter, being connected to shaft 48, will start the steering movement and, at the same time, re-centre the valves. The differential pressure produced in chambers 66, 68 will also help to re-centre the valve. In a modification, the plates 72, 74 are replaced by a single central plate interposed between two loose ball valves. Specification 754,588, [Group XXXI], is referred to.
Patent GB-1383329-A (GB)
Title: Self cancelling direction indicator switches
IPC: B60Q1/42
Filed: 1971-04-29
Abstract: 1383329 Direction indicator switches for road vehicles JOSEPH LUCAS (INDUSTRIES) Ltd 20 April 1972 [29 April 1971] 12248/71 Heading G4Q A self-cancelling direction indicator switch for a road vehicle comprises a body 10 for attachment to the vehicle, a member 13 pivoted at 16 for making and breaking indicator lamp circuits at 20, 21, annular members 26, 27 surrounding the steering shaft, attached thereto by a finger and slot, and carrying a projection 25 for operating the cancelling mechanism, the annular members 26, 27 being formed with an external groove which slides on an inwardly projecting portion of the body surrounding the steering shaft. The cancelling mechanism, Fig. 3 (not shown), comprises two pivotally mounted pawls connected by a spring.