baber/WOPTO huggingface dataset:
Patent GB-1309433-A (GB)
Title: Apparatsu for obtaining indications of refractive error of an eye
IPC: A61B3/103
Filed: 1970-03-24
Abstract: 1309433 Sight-testing apparatus AMERICAN OPTICAL CORP 24 March 1970 [24 March 1969] 14232/70 Heading G2J Apparatus for recording and measuring refractive errors of an eye which utilizes the full pupil without impediment to normal binocular vision comprises a 3-D array of target elements at known and fixed distances from each other and/or from a reference point, means for imaging the elements at the retina and means for re-imaging them after reflexion therefrom, and means for obtaining a visual record of the re-imaging. A light source 13, Fig.1, a projection lens 16 and beam-splitters 14, 12 cause an image of the array 18 to be focused near the retina of the eye 11; after reflexion, the light returns via the beamsplitters to a camera 22 incorporating a fibre-  optics image field flattener 24, each target element then occupying a specific position in an array on a film 23, whether in focus or not Figs.3<SP>A</SP>, 3<SP>B</SP> (not shown). Inspection of the retinagram so,formed enables the degree of spherical, cylindrical or astigmatic correction required for . the eye to be determined (each element maycomprise a group of smaller elements 17, Fig.1<SP>B</SP> to aid analysis of astigmatism). The array 18 is illuminated for a very short time (viz. the photographic exposure time) to prevent ciliary muscle  activity and troublesome eye motions; a fixation target 30 may also be provided. Projection lens 16 may be used as both camera lens and projection lens, the beam-splitter 14 and the camera being moved correspondingly. Also, a built-in calibration may be provided, together with an.alignment system for dioptric calibration of elements 18 (for measurement of large refractive errors).
Patent GB-822728-A (GB)
Title: Vitamin products and process of preparing same
Filed: 1956-05-08
Abstract: A Vitamin B12 composition is obtained in a process, which comprises contacting a Vitamin B12-containing aqueous solution at an acid to neutral pH with a synthetic cation exchange resin in particulate form, removing said resin adsorbate from the aqueous solution, drying the resin adsorbate and blending the dried resin adsorbate with other vitamins, mineral components and excipients at least one of which is normally deleterious to Vitamin B12.  Such deleterious materials include in particular ascorbic acid, an ascorbate, a ferrous salt and other substances of this nature which are primarily reducing agents. Specified resins are cation-exchange resins in which the major part of the exchanging groups are carboxyls, and resins which are polyacrylic acid or polymethacrylic acid in which the molecules are crosslinked with divinyl aromatic compounds, such as divinyl benzene.ALSO:The invention comprises a Vitamin B12 resin adsorbate composition wherein the Vitamin B12 is present as an adsorbate on a synthetic cation exchange resin, and one or more substances normally deleterious to Vitamin B12.  Such deleterious materials include in particular ascorbic acid, an ascorbate, a ferrous salt and other substances which are primarily reducing agents.  The resin adsorbates may be blended with multivitamin and multimineral components, e.g. thiamin, riboflavin, pyridoxin, pantothenic acid, manganese, zinc, iodine, and copper.  Flavouring agents, sweetening agents and binders are used to form capsules or tablets.  Suspensions of the vitamin-resin product may contain suspending-agents, wetting agents, flavouring and sweetening agents.
Patent GB-278627-A (GB)
Title: Improvements in portiere rods
IPC: A47H1/022
Filed: 1927-05-27
Abstract: 278,627. Hudson, W. A. May 27, 1927. PortiÞre rods.-In a portiÞre rod arrangement of the kind in which the rod is pivoted at one end upon a bracket 3 secured to the door frame &c. and carries near its other end a pivoted lever 5 secured to a swivelling bracket 11 secured to the door, the lever 5 is adjustably secured to the bracket 11 by a clip 15 tightened on the lever by a screw 17. The lever 7 is also adjustably secured to the rod by a clip 8.
Patent GB-422782-A (GB)
Title: Improvements relating to dynamo electric machines
IPC: H02K23/36
Filed: 1934-05-02
Abstract: 422,782. Regulating dynamos; control of D.C. motors. WILLIAMSON, A. G., 25, Litherland Road, Sale, ROBERTS, K. W. D., 42, Auburn Road, Old Trafford, both in Manchester, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. May 2, 1934, No. 14319/33. Addition to 391,563. [Class 35] [See also Group XXXVII] Machines with two armatures; dampers.- The generator and booster for supplying a motor for an elevator or like installation as claimed in the parent Specification are constituted by a machine having a single armature winding co-operating with two or more field systems and the armature core is axially divided into two sections one of which co-operates with one or more field systems to constitute the generator and the other section with the other or one of the other field systems functions as the booster. In the form shown, the coils 26 comprise the separately or shunt excited generator field winding and the coils 25 the damping and tapped series field windings of the booster, whilst the coils on each field system may also include a " suicide " winding.
Patent GB-1456233-A (GB)
Title: Stylus arm pivot
IPC: G11B21/20
Filed: 1973-03-26
Abstract: 1456233 Pick-up arm RCA CORPORATION 19 March 1974 [26 March 1973] 14394/73 Heading G5R A pick-up arm for use in the capacitive playback system described in Specification 1,392,202 comprises stylus 5 mounted at an end of arm 6 which has its other end secured in a holder 7 carrying a part-conical plug member 13 which partly enters an aperture 21 formed in the base of support member 20. The support member has a back wall with a semicircular channel 28, a base 25 with a V-shaped channel 26 and side walls 22, 23 which co-operate with the cylindrical portion 17 of the plug to prevent rotation of the arm about an axis extending in the direction of the arm length yet permits pivoting of the arm in the horizontal and vertical directions. The support member 20 is attached to part 8 of a speed-adjusting system which moves the arm in the direction of its length to compensate for variations in turntable speed. The arm is raised by rotating member 11.
Patent GB-680435-A (GB)
Title: Improvements in or relating to the treatment of zinc surfaces
IPC: C23C22/83
Filed: 1949-05-30
Abstract: A zinc surface, which may be a zinc coating on steel, is treated with a chromic acid solution, rinsed with water, alcohol or other inert liquid, and before the surface is dry subjected to the action of an aqueous solution of an alkaline silicate, preferably at 120-180 DEG F.  The chromic acid solution may also contain a persulphate and a wetting agent such as licorice powder or quillaja extract and the silicate solution a wetting agent, e.g. a sulphonate or an alcohol sulphate.
Patent GB-707272-A (GB)
Title: Improvements in and relating to regulating systems for the supply of fluid fuel to gas turbines
IPC: F02C9/16
Filed: 1952-06-10
Abstract: 707,272. Gas-turbine plant. BRITISH THOMSON-HOUSTON, CO., Ltd. June 10, 1952 [June 15, I951], No. 14587/52. Class 110(3) [Also in Group XXIX] A fuel supply system for a gas turbine burning e.g. fuel gas, and having a fuel metering valve operated in accordance with load demand has the metering inlet pressure controlled by a valve 23, 21 placed between a fuel source and the metering valve and operated by a servomotor responsive to the metering valve inlet pressure P2 and the pressure Pc in the combustion space, or at the outlet of the compressor supplying the combustion space, so as to maintain a predetermined pressure ratio between the pressures P2 and Pc. The metering valve is operated by a hydraulic-mechanical servo mechanism responsive to, e.g. rotor speed, motive fluid temperature, ambient atmospheric temperature and pressure, air speed, and the position of an automatically or manually set control member, of the kind disclosed in Specifications 638,494 and 700,092, [Group XXXV]. The piston 36 of the servomotor  is controlled by a pilot valve 51 movable in response to the pressure P2 acting on a bellows 85 and adjustable ratio lever 90, and the pressure Pc acting on an opposed bellows 73, With the plant starting from shutdown the bellows springs 79, 84 and abutments 81, 89 are so adjusted that the pilot valve allows pressure oil from conduit 61 to flow via port 59, land 53 port 65 and passages 46, 49, 50 to the lower side of the piston which is raised against its spring 44 to open first the auxiliary valve 23 and then the main valve 21. As the piston moves upward oil above the piston is forced via passage 45, port 66. land 54, port 62 to a drain chamber 64 above a follow-up piston 104 and from which the oil escapes via an adjustable orifice 64a. The piston 104 acting through the lever 90 together with the increased valve outlet pressure P2, tends to recentre the pilot valve with a force proportional to the velocity of the piston 36. A drain chamber 58 with orifice 58b allows the exhaust oil from below the piston 36 to act on the lower side of the follow-up piston. Because the pressure P2 must always be greater than Pc, the abutment 89 on the lever 90 is nearer the fulcrum 91 than the abutment 92 of the pilot valve on the lever. To vary the ratio of Pc to P2, the position of the fulcrum and therefore the ratio of the lever arms may be altered by rotating an eccentric 98 bearing on a slide 95 carrying the fulcrum. The position of the piston of valve 23, 21 is shown by a sight indicator 40. A passage 71 from the oil inlet 61 leads to a recess 72 to prevent gas leaking along the valve spindle 24 into the cylinder 29, while a scraper 33 cleans the spindle of dirt.
Patent GB-623937-A (GB)
Title: Improvements in or relating to duplicating apparatus
IPC: B41L13/04
Filed: 1947-06-02
Abstract: 623,937. Stencilling-apparatus. KINGS, A. T. June 2, 1947, No. 14589. [Class 100 (ii)] A stencil duplicating apparatus in which the stencil 20 is mounted over an ink-pad 18 adapted to be run over the surface to be printed, is constructed of a wooden roller 13 fitted with a metal cylinder 15 having edges 16 spaced apart to provide a gap 17 to which are secured by tacks an ink pad 18 covered by a layer of fabric: The stencil 20 is secured over the ink pad by means of pins 21 engaging perforations in one end of the stencil, and by a clamping bar 22 held in position by screws 23. The U-shaped frame 10 in which the roller 13 is mounted is fitted with a handle 11, and to the frame is secured a coiled spring 24 connected by a link to a pin 27 on the roller, which is normally maintained against the left-hand side of the frame 10. To print, the roller is moved from the position shown over the paper until the pin 27 engages the other side of the frame 10, and the spring 24 returns the roller to normal position when it is raised from the paper. A protecting cage 28 is fitted over the spring 24.
Patent GB-247058-A (GB)
Title: Improved process of extracting fat from bones
IPC: C11B13/00
Filed: 1925-06-04
Abstract: 247,058. Hjort, J. June 4, 1925. Fats and fatty oils, extracting. - Fat is extracted from fresh or boiled bones of whales and other large marine creatures by breaking the hard outer layer, pulping the spongy interior, and removing the oil by draining, pressing, centrifuging or other means, or by a combination of such means. The operation may be conducted at atmospheric or higher temperature. The prior extraction of oil or fat from the bones of animals by grinding and subsequent pressure of the disintegrated mass is referred to.
Patent GB-145998-A (GB)
Abstract: 145,998. Rudolph R. H., and Friedman, C. Aug. 5, 1919. Boot-sole sewing-machines; lock-stitching by shuttles.-The shuttle 65 is rotated about an axis parallel with the line of feed by spur-and-chain gearing 63. The needlethread loop is spread vertically by a finger 89 and horizontally by a finger 96. The fingers are carried by levers actuated by a cam 93 on a shaft 61 from which the shuttle shaft is driven. The shuttle thread tension is determined by the pressure of a spring-pressed pin 72 upon the centre of the shuttle. The barbed needle 45 is actuated by a cam-lever 50 and a link 48, and is threaded by means of a thread finger 76 carried by a vertical shaft 77 which is oscillated through bevel-gear 80 by a lever, a push-rod 83, 84, and a cam. The takeup 110 is carried by a lever 108, 113 operated by a cam-plate 114. Presser-bars with periodic control. - The presser 16 is pivoted upon the feed-shaft 29 and is forced positively on to the work by the contact of a cam-lever. This lever is made in two parts 21, 23, Fig. 7, both of which are pivoted at 20, and an adjustment between the parts for the accommodation of differing thicknesses of work can be made by a screw 26. Feed by awls; channelling.-The awl is fixed upon the shaft 29, which is given endwise movements by a cam-lever 39. A channel-indenting tool 104 is intermittently operated by a cam and lever arm 105.
Patent GB-544161-A (GB)
Title: Improvements in or relating to folding cameras
IPC: G03B9/58
Filed: 1940-09-26
Abstract: 544,161. Photographic cameras. HOUGHTONBUTCHER MANUFACTURING CO., Ltd., and THOMAS, H. K. Sept. 26, 1940, No. 14608. [Class 98 (i)] A shutter release for a folding camera comprises a lever b pivoted as at c on the baseboard a and formed with a part d normally projecting beyond the edge of the baseboard adjacent the hinge thereof for engagement by a finger or thumb to rock the lever against the action of a spring h, to cause its free end b<SP>1</SP> to operate the shutter trigger. In another 'form the lever is L- shaped, so that the finger piece d and the shutter trigger are on opposite sides of the camera.
Patent GB-1492168-A (GB)
Title: Document reproduction machine
IPC: B65H9/16
Filed: 1976-04-09
Abstract: 1492168 Aligning copy sheets INTERNATIONAL BUSINESS MACHINES CORP 9 April 1976 [30 May 1975] 14641/76 Heading B8R As copy sheets are discharged from a copier they have their images, and their edges adjacent to the images, against bar 30, in consequence of reversal during copying, and are moved into registration against edge 46 by rollers 62, 63, 73 before being discharged or passed to a collator. When each sheet leaves rollers 60, 61 (each operating in conjunction with a lower roller) it is moved by angled rollers 63, 62 until its edge abuts edge 46, or powered or idler rollers taking the place of edge 46. If a sheet is of greater size than normal, and therefore tends to rotate anticlockwise under the effect of rollers 62, 63 a correcting force is applied by roller 73.
Patent GB-918538-A (GB)
Title: Method and apparatus for transporting wheeled vehicles
IPC: E04H6/18
Filed: 1959-04-30
Abstract: 918,538. Dollies for use in mechanical garages. PIGEON HOLE PARKING INTERNACIONAL S.A. April 30, 1959, No. 14709/59. Class 38 (4). Horizontally swinging rollers or arms 23 (Fig. 1) on a dolly for use in a mechanical garage raise a wheel or wheels 16 of a vehicle by a squeezing action at opposite ends of a horizontal cord of the wheel. In the form illustrated the arms 23 are swung by rack and pinion engagement 26, 30 (Fig. 3) with hydraulic rams 28 acting against springs 31. The rams are mounted independently in pairs in common cylinders 27 so that the arms 23 can swing independently. A pair of rollers 47 are carried by arms 50, 50<SP>1</SP> so that they can be swung upwardly to straighten the steering wheels of the vehicle under the action of a ram 61 connected by a cable 62 to a spring-biased yoke 60 connected through links 56 to the arms 50. Each roller 47 may be replaced by several short rollers. The dolly is towed by cables 28.
Patent GB-490280-A (GB)
Title: Improvements in the construction of metal windows
IPC: E06B3/30
Filed: 1936-11-10
Abstract: 490,280. Window frames. PEREMI, E., and TOTH, L. Nov. 10, 1936, No. 14740/38. Divided out of 486,950. [Class 20 (iii)] A window frame comprises a rigid outer reinforcing frame of ferrous metal adapted for mounting as a unit in the wall of a building, the surfaces of the frame which are exposed when so mounted being covered by inner frame members of non-corrosive metal, which are provided with seats for mounting the sashes. In the construction shown, the outer frame is formed of steel angle-bars 46 secured together at their ends and located within channel portions 46a of the inner members 42, 43, of extruded non-corrosive metal. The flanges of the inner frame members parallel to the plane of the window, serve as seatings for hinge sashes 13 or fixed lights 12, as desired. The inner frame members are'provided with short flanges 16, 17, which serve for the reception of weather-sealing strips 19 or glass-securing clips 20, as described in Specification 486,950. The transom or mullion bars 44 may be reinforced by steel or like bars 47, the exposed faces of the latter being covered by members 49 of non-corrosive metal.
Patent GB-122150-A (GB)
Title: Improvements in Seat Sticks.
IPC: A45B5/00
Filed: 1918-09-11
Abstract: 122,150. Wilmot, S. M., and Wilmot & Co., S. M. Sept. 11, 1918. Folding and collapsible seats. -A walking-stick seat is provided with a T-shaped fitting having sockets 4, 5 into which may be screwed the stem 2 of a frame 1 which serves as a seat or handle to the stick according to its position.
Patent GB-1105766-A (GB)
Title: A sounding device for toys
Inventor: PUI CHAN
IPC: A63H5/00
Filed: 1966-04-04
Abstract: A sounding device for a toy, comprises a diaphragm, an abutment in contact with the diaphragm, a rotary striker to coact with the abutment and actuating means for rotating the striker.  In an embodiment, the device is incorporated into a toy tiger, the diaphragm is of a stiff thermoplastics material and the abutment a resilient steel blade seated against the diaphragm, so that the sound emitted simulates the roar of a tiger.  The rotary striker consists of a striker pin radially attached to a pinion at the speed-increased end of a train of pinions, the slow speed end being coupled to a hand actuating member, which may be a two-arm lever, and include a toothed sector, meshing with the end pinion of the train, as one arm, and a handle as the other, longer, arm. An escapement action may be provided between the striker and its actuating means, and a flywheel may be coupled to the rotary striker.
Patent GB-811735-A (GB)
Title: A finishing process for polyamide textile materials
Inventor: DAWSON TIMOTHY LESLIE
IPC: D06M13/148
Filed: 1956-05-14
Abstract: Polyamide textile materials are stiffened by treatment with an aqueous solution containing the ammonium salt of an acrylic acid polymer, a polyhydric alcohol, and optionally an acid catalyst, followed by heating at 150 DEG  C. or above.  The ammonium salt may be derived from a product obtained by polymerizing acrylic acid or by hydrolysing polyacrylonitrile or a polyacrylic acid ester. Specified polyhydric alcohols are diethylene glycol, glycerol, pentaerithritol, mannitol and polyvinyl alcohol.  Substances which become more acidic on heating, e.g. ammonium salts such as ammonium dihydrogen phosphate, diammonium hydrogen phosphate, ammonium chloride and ammonium thiocyanate and mineral acid salts of certain amines and amides such as pyridine hydrochloride and urea nitrate, may be used as catalysts.  Suitable polyamide materials are polyhexamethylene adipamide and polymers from caprolactam.  Examples are given.
Patent GB-499252-A (GB)
Title: An improved method of manufacturing tubes or like hollow bodies
IPC: B28B21/92
Filed: 1938-05-19
Abstract: In moulding reinforced tubes or other hollow bodies from cement, concrete or like material, the material is compressed or rammed as by a core and pressing-screw in a mould lined with a wire netting reinforcement and the preliminary workpiece so formed is removed from the mould and an outer layer is applied to cover and embed the reinforcement.  The material may contain fibrous material such as asbestos.  The outer layer may be of the same material or of bitumen or tar or strips of jute saturated therewith and may be applied by winding or by immersion.  The reinforcement may be of the same or slightly smaller diameter than the mould.
Patent GB-872367-A (GB)
Title: Improvements in or relating to magnetic tape machines
Inventor: MARSDEN BERNARD
IPC: G11B15/44
Filed: 1959-05-01
Abstract: 872,367. Driving magnetic tapes. ASSOCIATED TELEVISION Ltd. May 2, 1960 [May 1, 1959], No. 14969/59. Class 40 (2). In a magnetic tape machine a mechanism for changing the direction of tape drive is operated by tension in the tape, obtained either by securing the ends of the tape firmly to the spools, or by providing a protuberance at a short distance from the ends of the tape. Tape, anchored to the spools, passes guide pillars 4a, 4b which are on bell-crank levers, pivoted and linked to a bar 10 so as to operate a switch 11a. The tape is in contact only with one or other of the replay heads 7a, 7b. A ratchet and pawl arrangement 12, 13 can either operate a stop switch after a given number of operations or work a counter. Where the tape has a protuberance it passes through stop-guides 114a, 114b and the tension produced in the tape when the guides stop the protuberance operates the bell-crank levers 108a, 108b and linkage 110 to operate a switch 111. A similar pawl-andratchet arrangement is fitted.
Patent GB-544356-A (GB)
Title: Improvements in and connected with a rotary drum or receptacle for a mixing machine
IPC: B28C5/18
Filed: 1940-10-07
Abstract: 544,356. Mixing-drums. WINGET, Ltd., and STANCLIFFE, C. W. Oct. 7, 1940, No. 14977. [Class 86] In a conical mixing drum the base of which is provided with one or more inclined tracks, as in Specification 268,658, [Class 86], ridges 8 are provided to connect the high and low ends of the tracks, the peaks 8b of the ridges extending above the level of the high ends 7a of the tracks the two sides of the ridges extending downwardly and merging into the high and low levels of the tracks. Helical blades 10 are provided which are parallel with the deeper sides of the ridges.