baber/WOPTO huggingface dataset:
Patent GB-1300826-A (GB)
Title: Motion picture and like reels
Inventor: MCKEE EDWARD SHERMAN
IPC: G03B21/32
Filed: 1970-02-19
Abstract: 1300826 Tape reels EASTMAN KODAK CO 19 Feb 1970 [19 Feb 1969] 8064/70 Heading B8M [Also in Division G2] A cine film or other reel 10, having metal flanges 12, 14 carried on an insulating plastics hub 18 rotatable on a metal shaft 30, has a metallic conductive coating 22 provided on hub 18 to conduct electrostatic charge developed on the flanges to the earthed spindle.
Patent GB-447567-A (GB)
Title: Improvements in the manufacture of massive bodies of density greater than that of lead
IPC: C22C1/04
Filed: 1935-03-15
Abstract: Massive bodies having a density greater than that of lead, particularly for use as shields against penetrating radiation, are made by heating a mixture of fine tungsten powder and the fine powder of another metal which may be copper or nickel to a temperature not exceeding 1500 DEG  C.  A binder such as a solution of wax in benzene may be used, such binder being removed during the heating process. Part of the shaping may be effected before the heating is completed. Compositions consisting of tungsten with (1) 5 per cent of copper, (2) 5 per cent of nickel, and (3) 5 per cent of copper and 5 per cent of nickel, are described. Specifications 17438/08, [Class 82], and 5150/13, [Class 82 (i)], are referred to.
Patent GB-788632-A (GB)
Title: Air powered stapling machine
IPC: B27F7/34
Filed: 1956-03-15
Abstract: 788.632. Stapling machines. HORNE, R. F. (International Staple & Machine Co.). March 15, 1956, No. 8130/56. Class 89(3) The drive blade 60, Fig. 3 of a known stapling, machine is secured to the rod 54 of a single-stroke compressed air actuated piston 53 which is normally held against the cylinder head 52 by compressed air admitted through a line 72 in the handle 22 past a valve member 84 of a two-part main valve 83, 84 into ducts 75, 82 leading to the underside of the piston 53; the cylinder space above being vented to atmosphere through a duct 112, Fig. 2, an open valve member 116, Fig. 5, of a two-part poppet valve 115, 116 and an exhaust duct 78. The downward working stroke of the piston 53 and hence of the blade 60 is initiated by an upward pull on a trigger 130 whereupon a spring-biased cam 131 is rocked counterclockwise about a pin 134 and lifts the rod 86 of the main valve so as to force it to its other position. Simultaneously the poppet valve is switched by virtue of release of compressed air trapped below the piston 53 being vented to atmosphere. Initiation of the return stroke is effected by abutment of a screw 69 at the end of the piston rod 54 against a dog 142 of cam 131 resulting in sufficient clockwise rotation of cam 131 about its pin 134 to free the valve rod 86 irrespective of whether the trigger is being held up or not. In a modification the trigger comprises balls pressed by springs into a recess in the main valve rod and in a further modification the trigger is solenoid operated. The top of the driving blade 60 is connected by two pivoted links 62 to two anvils 63 rockable about fixed pins 64 and carrying clinching arms 65.
Patent GB-1122502-A (GB)
Title: Improvements in or relating to transistor switching circuits
Inventor: MANN ROBERT JOHN
IPC: H03K17/60
Filed: 1966-02-24
Abstract: 1,122,502. Transistor switching circuits; circuits employing bi-stable magnetic elements. STANDARD TELEPHONES & CABLES Ltd. 24 Feb., 1966, No. 8164/66. Headings H3B and H3T. In a bootstrap switching circuit using an NPN transistor VTB, the base current is limited by a PNP clamping transistor VT2 connected across the base/emitter circuit of VTB. Fig. 2 shows part of a circuit for energizing a load RL which may be a column of magnetic storage elements of a memory matrix. Transistor VTA may be one of seven similar transistors, each driving four loads while VTB is one of four similar transistors, each driving seven loads. Transistor VT2 is arranged to be normally conductive so as to short-circuit the input to VTB until a coincidence of pulses at terminals V1, V2, V3 turn off VT2 and turn on VTA and VTB so as to feed a pulse through the load RL. VT2 is arranged to be conductive at a predetermined value of the input pulse V2 so as to limit the base current of VTB. VTB may be a silicon transistor whilst VT2 can be silicon or germanium. In Fig. 3 (not shown), the pulse input V3 is replaced by a positive source and a reverse biased diode so as to enable a clamping transistor of lower reverse base/emitter voltage to be employed.
Patent GB-1294442-A (GB)
Title: Process for the preparation of isourea hydrogen sulphates
Inventor: TAYLOR GEORGE ROSS
IPC: C07C239/00
Filed: 1969-02-14
Abstract: 1294442 Isourea and guanidine derivatives GLAXO LABORATORIES Ltd 13 Feb 1970 [14 Feb 1969] 8255/69 Heading C2C O-alkyl or O-aralkyl isourea hydrogen sulphates are obtained by reacting cyanamide with appropriate alcohols in the presence of at least one mole of sulphuric acid relative to the cyanamide. The compounds may be converted to guanidines by reaction with amines, e.g. 1,17- diamino-9-aza heptadecane; at pH of 7 to 9.
Patent GB-888640-A (GB)
Title: Process for the preparation of glass-making batches
IPC: C03C1/02
Filed: 1960-03-09
Abstract: 888,640. Glass manufacture. SOLVAY ET CIE. March 9, 1960 [April 10, 1959], No. 8259/60. Class 56. To maintain a glass making batch based on sand and sodium carbonate in a sufficiently moist condition below 35‹C., there are added to the batch water and an alcohol that is capable of forming a liquid phase with the water and has a greater attraction for the water than have anhydrous sodium carbonate and sodium carbonate monohydrate, the liquid phase preferably being from 5 to 30 litres per metric ton of batch, the alcohol being chosen from ethylene, glycol, propylene glycol, polyglycols, glycerine, isopropyl, alcohol and monoethanolamine. Data of quantities suitable for different temperatures are given. Specification 888,638 is referred to.
Patent GB-742123-A (GB)
Title: Handloom
IPC: D03D29/00
Filed: 1953-03-26
Abstract: 742,123. Hand looms. SAKANO, T. March 26, 1953, No. 8414/53. Class 142 (2). In a hand loom in which the warp is supported by a hook 25 and the cloth A is held between frames 18, 19 which are tied to the weaver's body, the warp threads are passed through holes in plates 1, the plates being mounted on rods 9, 10. The warp is shed by oscillating the plates 1. A scale 23 is used for determining the width of the cloth, increasing the height of the shed to permit the passage of a shuttle 21, and for beating-up the weft. By forming each plate 1 with holes at different levels, or by using two series of plates at different heights, two-ply fabric may be woven.
Patent GB-782570-A (GB)
Title: Photographic objective
IPC: G02B13/00
Filed: 1954-03-23
Abstract: 782,570. Photographic objectives. AGFA CAMERA-WERKE AKT.-GES: March 23. 1954 [April 28, 1953], No. 8525/54. CIass 97(1)  In an objective consisting of a simple negative biconcave lens enclosed by two simpli positive lenses the overall length of the objective is between 0.25 and 0.45 times the focal length, the scan of the axial air-space is between 1.4 and 1.8 times the scan of the axial lens thickness the front surface of the negative lens has a radius of curvature between 0.5 and 0.8 times the focal length and greater than that of the rear surface of that lens, the refractive index of the negative lens is less than 1.70 while the mean of the refractive indices of the two positive lenses is greater than 1.70, and the ratio of the radius of the front surface of the front lens to the overall length, and the ratio of the radius of the rear surface of the negative lens to the overall length each lie between 1.05 and 1.25. Numerical data for three examples of the objective shown are given.
Patent GB-181822-A (GB)
Title: An improved device for holding safety razor blades during honing and stropping
IPC: B24D15/10
Filed: 1921-03-19
Abstract: 181,822. Bambridge, W. G., and Brown, G. E. March 19, 1921. Stropping-apparatus.-A device for holding safety razor blades during honing or stropping comprises two clamp-members 1, 2 united by an integral bent portion 3 which is cut away centrally to form an opening for a rotatable rear support 9 whereby the blade 5 is maintained at a definite angle to the sharpening-surface. The ends of the members 1, 2 are bevelled or thinned down and the blade is held in position between the members bv a screw 7 or a bolt. The rear support 9 may be a roller mounted on a spindle 10 pinned in the bend 3 of the clamp, or it may comprise a ball held in the opening in the clamp by claws. When a handle is employed with the device, the spindle is made hollow to receive the handle 17 which is prevented from turning and is retained in position by a spring-catch 19; or the shank of the handle and the interior of the spindle may be squared or flattened to prevent turning. The Provisional Specification describes also arrangements in which the blade is clamped by means of a cam, a clamp-lever, or a slidable stud; the clamp-members may normally be either close together or separated. Specification 151,205 is referred to.
Patent GB-494415-A (GB)
Title: Improvements in driving mechanism for independently sprung steering wheels for motor vehicles of any loading capacity
IPC: B60K17/30
Filed: 1937-03-24
Abstract: 494,415. Road-vehicle spring-suspensions. MONZEE, G., and JOSKIN, J. March 24, 1937, No. 8637. Convention date, March 24, 1936. [Class 108 (ii)] [Also in Group XXXI] The gear casing 19, is provided with a strap or stirrup 26 bolted or otherwise attached to the chassis frame, brackets 26a being formed on the strap for the attachment of pivoted links 32, 33 by which the driven steering wheels are connected to the casing and chassis. By disconnecting the casing from the frame the whole power unit and the driving wheels may be readily removed, one or more detachable castor wheels 100 being provided for ready manipulation. The suspension spring is bolted at its centre to the strap 26 and is connected at its ends by shackles 42 to the pivots 41 of the lower links 33. The inner pivots 27 of the upper suspension links 32 are widely spaced as shown in Fig. 3, and the pivots 28 of the lower links 33 are adjustable along brackets 35a by means of bolts 35 so as to vary the cant of the steering wheels. The outer ends of the links are pivoted at 39 and 41 to hemispherical members 37 to which the steering swivel 63a is connected by pivot pins 44.
Patent GB-1494186-A (GB)
Title: Solid state imaging device
IPC: H04N5/341
Filed: 1976-03-04
Abstract: 1494186 Solid state imaging device MATSUSHITA ELECTRONICS CORP 4 March 1976 [10 March 1975] 08704/76 Heading H4F The device comprises an M-row by N-column array of photosensors 1,1<SP>1</SP>, eg photodiodes, and a differential amplifier 11 so fed by the photosensors that spurious signals generated within the device cancel. Each photosensor is connected to a "vertical" switching device 2, 2<SP>1</SP>, e.g. a MOSFET. As shown the devices are connected to row wires 51-5M and to column wires 41a-4Na, 41b-4Nb. The row wires are energized sequentially by a " vertical" pulse generator 5. The column wires are connected as shown to "horizontal" switching devices 31a-3Na, 31b-3Nb, the devices being enabled sequentially in pairs by a "horizontal" pulse generator 4. The outputs of devices 31a-3Na are connected to input 8 of the amplifier 11 and those of 31b-3Nb to the input 9. When a photosensor is selected by enabling the corresponding pair of switching devices, e.g. 2, 31a, current flows from a source 6 to charge the photosensor by an amount corresponding to the amount of light incident on the cell during the frame scan period, resulting in a video signal on one input, 8, of the amplifier. In addition the input 8 receives spurious signals resulting from photoelectric action at the drain of the M/2 switching devices connected to column wire 41a, and from the gate-drain capacitance of switching device 31a. At the same time the input 9 of the amplifier receives substantially similar spurious signals from the switching devices connected to column wire 41 b, and so the amplifier output signal consists only of the video signal. Since only half the vertical switching devices in any one column are connected to the corresponding horizontal switching device the time constant of the circuit is less than in conventional arrays, allowing an increase in the maximum scanning speed.
Patent GB-118827-A (GB)
Title: Improvements relating to the Treatment of the Tow of Flax and like Fibres.
Inventor: HYNDMAN JAMES
IPC: D01B5/00
Filed: 1918-05-27
Abstract: 118,827. Hyndman, J. May, 27, 1918. Heckling-machines. -The tow of flax and like fibres is fed bv a belt a to a rotating cylindrical brush c, which delivers it to a pair of heckle sheets d<1>, d<2>. A pressing- roller k may be provided, and also a pair of drawing-rollers l<1>, l<2> on the delivery side of the brush c. The heckles of one sheet are given a lead in respect to those on the other sheet.
Patent GB-102695-A (GB)
Title: Improvements in or relating to Boots and Shoes.
Inventor: HOLDEN HIRAM
IPC: A43B9/06
Filed: 1916-06-22
Abstract: 102,695. Holden, H. June 22, 1916. Connecting uppers to insoles and soles; uppers. -To economize leather, a lasting-strip 4 of crimped or corrugated paper, sized cloth, or other thin flexible material is secured to the edge of the upper by a continuous row 6 of zigzag stitches, the outer edges of which pass over the edge of the strip and are engaged by a lock stitch 7; the stitches 6 may, however, pierce the strip near its outer edge.
Patent GB-344243-A (GB)
Title: Improvements relating to electric accumulators
IPC: H01M4/76
Filed: 1930-03-19
Abstract: 344,243. Galvanic batteries. CHLORIDE ELECTRICAL STORAGE CO., Ltd. and HEAP, B., Clifton Junction, near Manchester. March 19, 1930, No. 8814. [Class 53.] Electrodes.-In an accumulator plate of the type in which active material d surrounds cores or spines b extending between top and bottom bars of the plate, the active material being enclosed in slitted ebonite or like tubes a, each core b is formed integrally with an enlarged portion c at its lower end. The enlarged portion or plug c of each core is tapered at its lower extremity and is of smaller diameter than the enclosing tube a thus leaving a clearance to facilitate charging of the tube with active material namely lead oxide powder. The length of each enlarged portion or plug c is greater than the maximum extension of the core or spine due to possible growth in service, and after charging each tube with active material the cores are secured to the bottom bar e.
Patent GB-1410899-A (GB)
Title: Proteciton from corrosion of road vehicles
IPC: C23F13/02
Filed: 1973-02-22
Abstract: 1410899 Cathodic protection of road vehicles J LINDHOLM 22 Feb 1973 [24 Feb 1972] 8842/73 Heading C7E A sacrificial anode for protecting the steel of a road vehicle comprises a body formed with a plurality of external ribs 12 for collecting road dirt and having a permanent magnet (fitting in recess 11) by means of which the body is attached to the vehicle. The body is attached to a vehicle where dirt collection is maximum, e.g. under a motor-car wing, and when the dirt is wet and potentially corrosive it serves as an electrolyte between the steel and the anode, which corrodes - when the dirt dries and is not so potentially corrosive the electrolyte is absent and galvanic protection ceases.
Patent GB-351023-A (GB)
Title: Improvements in the treatment of tars
IPC: C10C1/00
Filed: 1930-03-19
Abstract: 351,023. Tar. THERMAL INDUSTRIAL & CHEMICAL (T.I.C.) RESEARCH CO., Ltd. and CONDRUP, C. 0., 136, Victoria Street, London. March 19, 1930, No. 8862. [Class 55 (ii).] Coal tar is treated for use on roads &c. by distillation in two separate operations so as to obtain (1) a dehydrated or lightly "topped" tar, and (2) a heavy residue tar or pitch, and the products are blended. The final product may contain a relatively high proportion of oils evaporable at a temperature of about 200‹ C., of free carbon, or of pitch, and has a high specific gravity. 918 gallons of crude vertical retort tar gave 720 gallons of dehydrated tar, and 2250 gallons of crude tar gave 1150 gallons of heavy residue. 1870 gallons of road tar were obtained by admixture, and had a viscosity value of 20 seconds at 30‹ C.
Patent GB-809371-A (GB)
Title: Improvements in or relating to twin contra-rotating parallel drive shaft assemblies
Inventor: NICHOLAS DONALD CAMERON
IPC: B29C48/03
Filed: 1956-03-23
Abstract: 809,371. Toothed gearing. B.X. PLASTICS Ltd. March 20, 1957 [March 23, 1956], No. 9196/56. Class 80 (1). The two geared shafts 8, 9 of a twin parallel drive shaft assembly particularly for use in a double-screw plastic extruding machine are supported in bearings 15, 16 and 20, 21 in a front end plate 1 and a bearing plate 3 respectively closely adjacent the pinions and spaced by a spacer plate 2. A rear end plate 5 carries a thrust bearing 24 for the shaft 9 while an intermediate plate 4 carries a thrust bearing 26 for the shaft 8. The rear bearings 20, 21 are of the needle roller type and run in direct contact with the shafts and plate 3 and the front bearings 15, 16 are preferably also of this type. The plates 1-5 are spigoted to each other and secured together as a unit by tie bolts 6 and may be clamped within a split housing 34. Passages for supplying lubricant to the gears and the bearings are provided.
Patent GB-1463876-A (GB)
Title: Polymerisable polymermonomer compositions
IPC: A61K6/083
Filed: 1974-03-01
Abstract: 1463876 Acrylic monomer/polymer compositions DENTSPLY INTERNATIONAL Inc 1 March 1974 [2 March 1973] 9295/74 Heading C3P A polymerizable mixture comprises (a) a polymerizable acrylic monomer, (b) 3 to 30% by wt. (based on (a)) of a polymer which is miscible in the monomer (a) and compatible with the polymerized monomer and (c) a pulverulent polymer dispersed in the monomer (a) which is compatible with and capable of being wetted by the monomer, the polymer containing 2-10% by wt. of particles of size up to 10 microns, 20-40% by wt. of particles of size 30-80 microns and at least 40% by wt. of particles of size 100-200 microns. In the examples particles of polymethylmethacrylate were suspended in a solution of methyl and optionally isobornyl together with benzoyl peroxide, pigments, acetate fibres, TiO 2 , ethylene glycol dimethacrylate, dimethyl paratoluidine, a substituted benzotriazole, hydroquinone, methyl methacrylate/ethyl acrylate copolymer, polyvinylidene fluoride, chlorotrifluoroethylene/acrylic copolymer, methyl/butyl methacrylate copolymer and/or vinyl chloride/ propylene copolymer; the mixtures were then polymerized to form dentures.
Patent GB-1011842-A (GB)
Title: 2ª‰-amino-3ª‡-hydroxysteroids of the androstane series and the production thereof
Inventor: SASAKI KANZO
IPC: C07J75/00
Filed: 1964-03-05
Abstract: The invention comprises 2b -azido-3a ,17b -dihydroxy - 5a  - androstane, 2b  - azido - 3a ,17B-diacetoxy - 5a  - androstane, 2b  - azido - 3a ,17b -di - p - toluenesulphonyloxy - 5a  - androstane, 2b - azido - 3a  - hydroxy - 17b  - p - toluene-sulphonyloxy - 5a  - androstane 2b  - azido - 3a -hydroxy - 17 - oxo - 5a  - androstane, 2b  - amino-3a ,17b  - dihydroxy - 5a  - androstane, 2b  - acetylamino-3a ,17b -dihydroxy-5a -androstane and 2b -acetylamino - 3a ,17b  - diacetoxy - 5a  - androstane, and a process for preparing a 2b -amino-3a -hydroxysteroid of the adrostane series which comprises reacting a 2a ,3a -epoxysteroid of the androstane series with hydrogen azide or an alkali metal azide and reducing the resulting 2b -azido-3a -hydroxysteroid of the androstane series with a metal hydride.  As alkali metal azide, there may be used sodium azide, and the reduction may be effected with lithium aluminium hydride in an inert organic solvent.
Patent GB-1359595-A (GB)
Title: Bearings for railway vehicle axles
IPC: F16C33/12
Filed: 1972-02-29
Abstract: 1359595 Bearing alloys; cleaning Al alloy; coating with metals VANDERVELL PRODUCTS Ltd 28 Feb 1973 [29 Feb 1972] 9399/72 Headings C7A C7E and C7F [Also in Divisions B3 and F2] A bearing block of cast aluminium alloy may be coated with a layer of bearing material. The block is degreased in trichloroethylene vapour and immersed for 3 minutes in a solution containing 10-15 g/l Na 2 CO 3  and 10-15 g/l Na 3 PO 4  at 90‹ C. After rinsing the block is immersed for about 1/2 minute in a solution of 3 parts nitricacid (SG 1À42) and 1 part hydrochloric acid (40%) at room temperature. After rinsing the block is masked except for the bearing surfaces by applying a lacquer to the parts which are not to be coated, dipping in molten wax, and stripping the wax from the bearing surfaces. The surfaces are coated with zinc by immersing the block in a solution containing 500 g/l NaOH, 100 g/l ZnO, 1 g/l FeCl 3 , 5 g/l Rochelle salt at room temperature. The block is rinsed, dipped in conc. nitric acid to remove the zinc coating, rinsed and reimmersed in the sodium zincate solution. The zinc surface may be coated with copper by electro-plating and the copper coated with tin. A layer of lead or tin based babbitt is then cast to form the bearing surface. Suitable alloys for casting as the bearing material comprise 1 to 10% Sn; 10 to 15% Sb; 0 to 1% As; 0 to 0À9% Cu; 0 to 0À5% Cd the balance being Pb. Alternatively the alloy may have 7À5% Sb; 3À25% Cu, the balance being Sn. In an alternative method of making the bearing block a mixture of alloys of aluminium and lead are cast together in such a way that the lead alloy tends to be concentrated at the bearing surface. Suitable lead alloys comprise 1 to 13% Sn; 10 to 15% Sb; 0 to 0À5% As; 0 to 0À9% Cu; 0 to 0À5% Cd the balance being lead. Alternatively the block may be made of an aluminium alloy having good bearing properties and a thermal conductivity greater than 0À2 cal. sec<SP>-1</SP>. em<SP>-3</SP>. ‹C<SP>-1</SP>. Such alloys comprise aluminium and 5À5 to 7À0% Sn; 0À7 to 1À3% each Cu and Ni; up to 0À7% each Si and Fe; up to 0À1% Mn and up to 0À2% Ti, or aluminium and 18 to 22% Sn; 1 to 1À5% Cu; up to 0À5% Fe; up to 0À3% Si; or aluminium and 4% Si and 1% Cd; or aluminium and 6 to 8% Si, 1À5 to 2À5% Cu, up to 0À3% Mg, up to 0À8% Fe, 0À2 to 0À6% Mn.
Patent GB-786973-A (GB)
Title: Preparation of improved malt products
IPC: C12C1/047
Filed: 1955-03-31
Abstract: Husks of ungerminated barley or other cereal grain are removed before malting the grain by treatment at atmospheric temperature with sulphuric acid of concentration 30 per cent or more by volume. According to an example, 20 g. barley was immersed for 3 hours in 40 ml. of 50 per cent sulphuric acid, the acid liquor filtered off and the treated grain washed well with water, stirred and rubbed, and then again washed with water or rinsed with a solution or suspension of alkali until free from acid; the so dehusked grain was capable of 98 per cent germination.  The malt product is suitable for incorporation in a chocolate, milk powder or egg powder; it may be treated with hot water to yield a sweet nutritious beverage.
Patent GB-560197-A (GB)
Title: Lubricants
Filed: 1942-07-07
Abstract: 560,197. Lubricating compositions. WITHERS, J. S. (Shutt, R. S., and Waitkins, G. R.). July 7, 1942, No. 9414. [Class 91] Lubricating compositions comprise a lubricating oil or grease base and a minor percentage of selenium dioxide or a seleno-cyanate. The latter may be an inorganic or an organic compound and the compounds specified comprise potassium or sodium seleno-cyanate and methyl, butyl, octyl, lauryl, dodecyl, oleyl, stearyl, phenyl, tolyl, benzyl, or naphthyl selenocyanates. The proportion of the addition compound is usually less than 1 per cent by weight and even as low, for example; as 0.07 per cent. The compounds may be added in solution ; specified solvents for selenium dioxide comprise dioxane, the aliphatic alcohols, glycols, glycerine, and other hydroxy-organic compounds ; and for the inorganic seleno-cyanates, acetone and other ketones, the organic compounds being preferably added directly. The addition agents improve the extreme pressure properties and the oxidation resistance of the oils andgreases.