baber/WOPTO huggingface dataset:
Patent GB-337072-A (GB)
Title: An instrument for ascertaining the aspect which will be produced by the repetition of a design
IPC: G02B27/08
Filed: 1929-07-30
Abstract: 337,072. Hunton, W. G. July 30, 1929. Viewing-apparatus. -Apparatus for viewing a design by which it is apparently repeated comprises a number of image - forming devices, e.g. concave lenses 12, so that when the design is viewed at an appropriate distance the aspect produced by its repetition may be readily ascertained. The lenses 12 are mounted in an oval-shaped flat. frame 10 and are cut with rectangular edges, being retained in place by a metal frame 13. In a modification four lenses are fitted in the frame 10 and may be arranged so that two are one above the other, the remaining two being disposed at the sides and adapted to slide in the frame, being mounted in carriers for this purpose.
Patent GB-1478930-A (GB)
Title: Flexographic inking devices
IPC: B41F31/18
Filed: 1975-05-29
Abstract: 1478930 Inking SVENSKA ELOPAK AB 29 May 1975 [5 June 1974] 23498/75 Heading B6C An inking device comprises ductor and distributor rollers 11, 12 with recesses 20 dividing each roller 11, 12 into parts and preventing the mixing of different colour inks. A partition ring 21 is positioned in each recess and in one embodiment the two rings 21 engage one another Reservoirs 15 are provided for each part of the ductor roller 11 and may have overflow pipes To prevent ink reaching the bearings 14 annular collars may be provided on shafts 13.
Patent GB-974934-A (GB)
Title: Improvements in or relating to x-ray image intensifiers
IPC: G01N23/225
Filed: 1961-06-29
Abstract: 974,934. Image converter tubes. H. A. L. VENNER (Carl Zeiss Jena Veb.). June 29, 1961, No. 23603/61. Heading HID. An X-ray image intensifier tube particularly for fine-structure analysis has the image entrance window 3 consisting of a material having only a low absorption for soft X-rays, e.g. beryllium or Lindemann glass, and shaped to be convex towards the interior of the tube. The screen 4 is mounted on a thin glass foil support bearing on its other surface the photocathode 7. The side of the screen 4 facing the window may carry a thin reflecting layer of a material which only slightly absorbs X-rays, e.g. beryllium or aluminium.
Patent GB-1284447-A (GB)
Title: Improvements in or relating to torque transmission devices
Inventor: WHITELEY ALAN
IPC: F16H13/08
Filed: 1969-05-09
Abstract: 1284447 Friction gearing HIGHFIELD GEARS Ltd 29 Oct 1969 [9 May 1969] 23689/69 Heading F2Q A planetary friction drive for a fan 10 comprises a standard ball or roller bearing 19 having a fixed inner race 18 and an outer race 28 rigid with the fan 10, the bearing cage 25 being drivingly connected to a driving shaft 10. As shown, a ring 21 keyed to the shaft 11 is urged towards the bearing 19 by a spring 26 and has an axially projecting pin 24 engaging a bore in the cage 25. The spring 26 provides an end load on the bearing 19 to produce the necessary frictional grip between the balls and the races.
Patent GB-335324-A (GB)
Title: Improvements relating to apparatus, specially wireless apparatus, having a single control for several rotating parts
IPC: H03H5/00
Filed: 1929-08-02
Abstract: 335,324. Savoye, F. Aug. 2, 1929. Addition to 310,050. Condensers.-Relates to methods for carrying out the invention described in the parent Specification according to which the capacity of a condenser is given continuous variation in one direction on which is superposed a more rapid periodic variation. In the arrangement shown in Figs. 1 and 2, the movable plates of two condensers 2, 3 are mounted on a sleeve 1 surrounding a shaft 19 and connected therewith by reduction gearing 15 - - 18. The shaft 19 carries a cam 30 actuating a rocking lever 32 which is connected to the other plates 7 of the condenser 2, which are pivoted on a rod 34. The sleeve 2 can also be rotated directly by a knob 12, a friction clutch being interposed between the sleeve and the reduction gearing. In another form, two condensers, adjustable with respect to each other, are mounted on a sleeve rotated by reduction gearing from a concentric shaft which carries an ordinary condenser, so that the latter passes through its maximum and minimum positions several times while the former are still moving in the same direction. In another form, condenser blades are mounted on a sleeve surrounding a rotating shaft and oscillating thereon. In the arrangement shown in Fig. 9, the varying element is provided by means of a condenser, one plate 115<1> or set of plates is caused to approach consisting of a sliding piece 111 with an oblique end engaging with a corresponding piece 110 on the sleeve 102. Key arrangements allow of the piece 111 to move longitudinally without rotating and the plate 115<1> and 115<2> may also be shaped as shown in Figs. 13 and 12 to give several maxima and minima in a revolution.
Patent GB-775425-A (GB)
Title: Improvements in or relating to fuel-injection systems
Inventor: SMITH CYRIL REVILL BELLAMY
IPC: F02M69/00
Filed: 1953-08-28
Abstract: 775,425. Carburetters. AMAL, Ltd. Aug. 27, 1954 [Aug. 28 1953], No. 23800/53. Class 7 (3). A continuous fuel injection carburetter particularly for racing motor-cycle engines comprises a sliding throttle valve 21 adapted to control the amount of air passing through the induction passage and to control a pressure regulating valve 9 in the fuel supply line to a spray nozzle 29 so that a substantially constant air-to-fuel ratio is maintained for all valves of throttle opening. The fuel pump 1 conveniently is such as to supply a maximum fuel pressure of about 35 lbs./sq. in. The nozzle pressure varies between zero and about 30 lbs./sq. in. The spray nozzle 29 projects at an angle into the mixing chamber.
Patent GB-393242-A (GB)
Title: Process for the production of nitrogenous acylated carbohydrates
IPC: C08B15/06
Filed: 1931-08-24
Abstract: Nitrogen-containing acylated carbohydrates are obtained by the treatment of a carbohydrate such as cellulose or starch with acetic anhydride, acetic acid, sulphuric acid, nitric acid and an amino compound, e.g. urea, biuret, aniline, phenyl glycine, amino phenolene, methyl aniline or glycocoll.  The nitrogen is present partly as the nitrate radicle and partly as the amino group bound directly with carbon of the carbohydrate, the relative proportions being at least 1 per cent of amino-nitrogen and less than 1 per cent of nitrate-nitrogen.  Undersirable side reactions and acetolysis are avoided by selecting amino compounds for the reaction which give off ammonia, e.g. urea, or by adding ammonium compounds such as the sulphite, formate, or acetate.  The products may be combined with albumens, peptides and amines to form glyco proteids.  In examples, (1) cotton linters are steeped in a mixture of acetic acid, sulphuric acid, and urea, and after a while esterified in a bath containing acetic anhydride and nitric acid; (2) cotton linters are first steeped in aniline, and then esterfied as in (1); (3) cellulose is immersed in a mixture containing acetic acid, ammonium nitrate, urea and sulphuric acid. The nitrogen-containing acylated carbohydrates may be employed in the production of filaments or films, and as insulating materials.
Patent GB-1437073-A (GB)
IPC: H02P9/48
Filed: 1972-05-20
Abstract: 1437073 Battery charging systems for vehicles LUCAS ELECTRICAL Ltd 7 May 1973 [20 May 1972] 23833/72 Heading H2H A system for charging the battery 16 of a vehicle comprises a permanent magnet alternator having three separate single phase windings 11, 12, 13 which are connected to positive and negative supply lines 14, 15 by an assembly of diodes and thyristors forming a rectifier, the arrangement being such that each end of each of the windings is connected to both the positive and negative supply lines by a thyristor and a diode respectively the system further including a voltage sensitive device 21 connected between the positive and negative supply lines such that the device 21 provides gating signals for the thyristors only when the voltage between the supply lines is below a predetermined value. The specification states that the system is operationally better than one using three thyristors and three diodes only.
Patent GB-461687-A (GB)
Title: Improvements in or relating to oil stoves or heaters
IPC: F24C5/06
Filed: 1935-08-26
Abstract: 461,687. Oil stoves. IMBER, J. Aug. 26, 1935, No. 23898. [Classes 75 (i) and 126] An oil burning lamp, stove or heater having an annular wick comprises a burner cone 9 and chimney 10 mounted as a floating unit in a ring 17 which is hinged to a ring 13 carried by arms 24 on the reservoir 3, the burner cone being formed with a flared flange 21 so that as the chimney is moved to its closed position the unit will be centred by engagement with an annular shoulder 14 on the burner basket 7. In the closed position the rings 17, 13 are secured together by a spring fastening 19. The burner cone is composed of two parts 9<a>, 9<c>, having inturned lips 9<b>, 9<d>, the upper cone being extended to form an annular disc 11 having a flange 16 adapted to rest on the ring 17 and carrying clips 10<a> engaging in slots in the lower part of the chimney 10. The ring 17 carries a frame consisting of vertical members 22 connected by rings 23 and an annular disc 28 carrying lugs 20 limiting the upward displacement of the chimney unit.
Patent GB-839242-A (GB)
Title: Improvements in or relating to electronic digital calculating equipment
Inventor: BIRD RAYMOND
IPC: G06F5/01
Filed: 1955-08-19
Abstract: 839,242. Electronic dividing apparatus. INTERNATIONAL COMPUTERS & TABULATORS Ltd. Aug. 17, 1956 [Aug. 19, 1955], No. 23949/55. Class 106 (1). A binary electronic calculating-apparatus includes a plurality of shifting register type stores each of forty stages, means for applying a standard train of forty shift pulses to shift the values contained therein in a predetermined direction in all the stores, means for reducing to, say, thirty-nine the pulse content of the pulse train as it is applied to one or more of the stores relative to that of the train as it is applied to another of the stores, whereby to produce in the one or more stores a shift of one step in the direction opposite to the shift direction relative to the value in the other stores. The invention is described with reference to a machine for performing division by repeated subtraction (see Specification 939,241) in which values are read from a magnetic drum 2, Fig. 1, and are entered into the shifting registers 17, 18, 19 and 20, through input trigger 11 and gates 13, 14, 15. Shift pulses are applied to the registers on lines P33, P3, P13 and P23 respectively. At the beginning of a dividing operation the dividend is entered in register 18, the divisor is entered in register 20 and the quotient is entered digit by digit, as the operation proceeds, into register 19. Further, the dividend on the last positive partial remainder is transferred from register 18 to the register 17 with a shift of one place upwards in denomination. At each subtraction the partial remainder in register 18 is shifted one place upwards relative to the divisor in register 20 before the next subtraction. This is effected by opening gate 76 and applying forty shift pulses to register 20 to circulate the contents forty steps back to the original position and opening gate 108 and applying thirty-nine pulses to register 18 to move the contents thirty-nine steps to the right. This is equivalent to a left shift of one place. The shift pulses are derived from a head 5 which reads a track on the drum 2 having words of forty pulses. Such a train of forty pulses is reduced by means of a gating circuit responsive to the first pulse to open and pass the second and subsequent pulses, thereby suppressing the first pulse. The gate is reclosed after the applied pulse train. The gate is controlled by a monostable trigger having a delay time greater than the period between pulses. The thirty-nine shift pulses are also applied to register 19 to move the contents one step on each subtraction and to register 17 when it is necessary to make a subtraction from the value therein with a shift of one place upwards. Specification 738,269 also is referred to.
Patent GB-1366862-A (GB)
Title: Ventilators
IPC: E04D13/03
Filed: 1971-08-19
Abstract: 1366862 Ventilators MOTO PLASTICS Ltd 19 Aug 1971 [19 May 1970] 24036/70 Heading F4V A ventilator adapted to act also as a support for a roof light or other closure 16 of an opening 22 in a roof 20 comprises a base structure 10 including a first skirt 12 which has a horizontal surface and at least one further skirt 12 adapted to have secured to it a light or other closure 16, successive skirts being separated by spacers 14. As shown there are three skirts separated by two sets of spacers, each skirt having, besides a horizontal part, an outwardly and downwardly extending part. There may be provided pivoted louvres 42 between the spacers 14 adapted to open and close the ventilator. They may be linked or geared together and controlled manually or by power-operated means. In the closed position the louvres bear against a weather strip 50. A screen 52 may be provided to keep out insects and wind-borne rubbish. If there are no louvres the screen may lie at an angle across the ventilator gap (Fig. 2, not shown). The spacers may be secured to the skirts by adhesive or rivets or, if it is required to have ready roof access, by threaded studs and knurled nuts. Specifications 1,319,613, 1,319,612, 1,301,392 and 1,287,763 are referred to.
Patent GB-891830-A (GB)
Title: Improvements in hose brushes
Inventor: LISTER CHARLES
IPC: A46B11/06
Filed: 1960-07-09
Abstract: 891,830. Self-feeding brushes. LISTER EQUIPMENT Ltd. April 10, 1961 [July 9, 1960], No. 24039/60. Class 19. A hose brush is formed with a tubular handle a<SP>2</SP> screwed into a nozzle a on the brush back A, a resilient hanging tab and drip deflector B being disposed on the handle adjacent the connection thereof to the brush back, and with or without a resilient buffer C arranged around the periphery of the brush. As shown in Fig. 4, the drip deflector is formed with a central flanged bore b to engage over the handle and the periphery is provided with a flange b<SP>1</SP> terminating adjacent the end b<SP>2</SP>. A hole b<SP>4</SP> may be used to suspend the brush when not in use. The nozzle may be formed at one side of the brush back and a detergent dispenser may be introduced between the handle and the brush.
Patent GB-925045-A (GB)
Title: Fabric covered cellular cushioning article and manufacture thereof
IPC: D06M23/14
Filed: 1960-07-11
Abstract: 925,045. Foam coatings. GOODYEARTIRE & RUBBER CO. July 11, 1960 [July 15, 1959], No. 24078/60. Class 140. A cushioning element having a body of foamed elastomeric material and a porous covering material bonded thereto, is produced by applying to the surface of the covering material a polymer having a skeletal chain containing fluorocarbon acrylate ester units indicated by the formula wherein R f  is a perfluoroalkyl group containing 4 to 12 carbon atoms, R is an alkylene bridging group containing 1 to 12 carbon atoms, R<SP>1</SP> is an alkyl group containing 1 to 6 carbon atoms, and R<SP>11</SP> is hydrogen or methyl, forming a foamed elastomeric material on the thus treated covering material and curing the foamed material. The treated covering material may be conformed to the contours of a mould, e.g. by applying heat thereto for shaping the cushioning element, the foamed elastomeric material, e.g. polyurethane or vinyl foam, rubber latex sponge, formed on the treated material, and cured. The porous covering material may be thermoplastic and may be a fabric or knit textile of cotton, wool, nylon, polyester, " Orlon" " (Registered Trade Mark), Acrilan, Vinyon, or an acrylonitrilevinyl chloride copolymer which may contain 60 parts by weight acrylonitrile and 40 parts by weight vinyl chloride. Homopolymers of the fluorocarbon acrylate ester, e.g. the homopolymer of the acrylate ester of N-propyl, N-ethanol, perfluoro-octane sulphonamide, or copolymors thereof with, for example, acrylonitrile, vinyl chloride, styrene, methyl acrylate, ethylene, isoprene, butadiene, and maleic anhydride, may be used. Specification 857,689 is referred to.
Patent GB-840592-A (GB)
Title: A rotary end brush construction
IPC: A46B7/08
Filed: 1957-07-30
Abstract: 840,592. Brushes. OSBORN MANUFACTURING CO. July 30, 1957 [May 22, 1957], No. 24141/57. Class 19. Various shapes of divider are described for non-rotatably inserting diametrially of the cup of a rotary end brush to cause outward compression of the butt ends of the bristles when inserted into the bonding resin contained within the cup. One type of divider extends right across the cup and is a force fit within the cup. Other forms extend only part way across the cup and are secured therein by an axial press stud fitting between the divider and the base of the cup, tangs alongs the base of the divider biting into the base of the cup. Outwardly directed bullet-shaped spigots may be press fitted onto the centre of the divider, which may have a knife edge-leading edge. The spigot may be replaced by a centring pin projecting beyond the bristles.
Patent GB-953098-A (GB)
Title: Improvements relating to fluorine-containing polymers
IPC: C07C51/62
Filed: 1962-06-22
Abstract: Copolymers of 10 to 85% mol. of vinylidene fluoride, 2 to 50% mol. of a perfluoroalkyl perfluorovinyl ether in which the perfluoroalkyl group contains 1 to 3 carbon atoms and 3 to 80% mol. of units of formula -CFX-CFY- in which X and Y are fluorine or a perfluoroalkyl group having 1 to 3 carbon atoms, or together form a perfluoroalkylene radical having 2 to 5 carbon atoms, or X is fluorine or a perfluoroalkyl group having 1 to 3 carbon atoms and Y is chlorine, may be prepared by copolymerizing vinylidene fluoride, the perfluoroalkyl perfluorovinyl ether and a compound of formula CFX=CFY with the aid of a free radical polymerization initiator in the absence of oxygen. The polymerization may be effected in bulk or in the presence of a liquid medium, e.g. water which may contain emulsifying agents, or perfluorinated solvents.  Specified initiators are hydrogen peroxide, benzoyl peroxide, cumene hydroperoxide, salts of persulphuric acid, nitrogen fluorides and azodiisobutyronitrile. Polymerization may be effected in the presence of chain transfer agents, e.g. n-hexane, carbon tetrachloride, acetone and ethyl acetate.  The products may be elastomers or flexible plastics, and may be compounded and cured with conventional ingredients and agents, e.g. carbon black, silica, pigments, zinc oxide, magnesium oxide, hexamethylenediamine carbamate, benzoyl peroxide, N,N1-bis(arylalkylidene) alkylene diamines, aliphatic and cycloaliphatic diamines, organic dimercaptans in conjunction with aliphatic tertiary amines and high energy radiation. The products may be used in making O-rings, packings, seals, diaphragms, hose, electrical insulation and protective coatings. Low molecular weight copolymers may be used as heat-resistant plasticizers for solid fluorocarbon elastomers. Specified compounds of formula CFX=CFY are tetrafluoroethylene, chlorotrifluoroethylene, hexafluoropropene, perfluoro-2-butene, perfluoro-4-octene, perfluorocyclopentene and perfluorocycloheptene. Examples describe the copolymerization in aqueous emulsion in the presence of ammonium persulphate and ammonium perfluorocaprylate of (I to V, XII, XIII and together with n-heptane XIV) vinylidene fluoride, perfluoromethyl perfluorovinyl ether and tetrafluoroethylene; of vinylidene fluoride and perfluoromethyl perfluorovinyl ether with (VI) chlorotrifluoroethylene, (VII) hexafluoropropene, (X) perfluoro-2-butene and (XI) perfluorocyclobutene; and of vinylidene fluoride and perfluoropropyl perfluorovinyl ether with (VIII) tetrafluoroethylene and (IX) hexafluoropropene.
Patent GB-244857-A (GB)
Title: Improvements in stereoscopic kinematography
IPC: G03B35/00
Filed: 1924-10-13
Abstract: 244,857. Cairns, A. Oct. 13, 1924. Stereoscopic kinematography - Pairs of stereoscopic images are projected into adjacent positions on a large screen or on adjacent screens, and each spectator is provided with a viewing apparatus of prismatic mirror or lens type enabling the images to be seen in superposition. The viewing apparatus may be binocular or monocular, and may be of the general construction de scribed in Specification 2118/95. Specifications 3477/98, 7897/08, 23163/10, 107,795 and 237,349 are referred to.
Patent GB-1501586-A (GB)
Title: Producing optical fibre precursor
IPC: C03B37/018
Filed: 1976-06-11
Abstract: 1501586 Optical fibre precursor HITACHI Ltd 11 June 1975] 24217/76 Heading C1M An optical fibre precursor is made by sealingly closing a glass tube 2 at one end a, and then progressively locally heating the tube towards the open tube end b while the tube rotates (4) so as progressively to close the tube bore, a gas under pressure being introduced (10) into the open end b of the tube bore during said progressive heating. The gas may comprise oxidizing and/or inert components (e.g. O 2 , Ar), and may optionally include components to form a film on the bore of the tube or to modify the core-forming layer 5 (e.g. to form GeO 2 , TiO 2  or P 2 O 5 ). The tube is preferably heated by gas burner device 3, and the pressure within the tube bore preferably is less than the external burner gas pressure but more than the hoop stress in the tube wall derived from the rotation of the heat-softened glass.