baber/WOPTO huggingface dataset:
Patent GB-1473466-A (GB)
Title: Magnetic transducer head suspension assembly
IPC: G11B5/60
Filed: 1975-05-13
Abstract: 1473466 Magnetic head mountings INTERNATIONAL BUSINESS MACHINES CORP 13 May 1975 [1 July 1974] 20013/75 Heading G5R A head suspension assembly comprises magnetic transducer head 48 carried by an arm 102 resiliently urged against a stop 101, pneumatic means 110, 111 for separating the arm 102 from the stop 101 by the application of gas under pressure, damping means acting to damp the rate of movement of the arm 102 upon changes of force applied to the head 48, and means 52 for mounting the assembly, the stop 101 being fixed in relation to the mounting means. The assembly may be used in a multiple flexible disc magnetic data storage device of the type disclosed in Specifications 1,440,697 and 1,440,698. A rigid arm 101, forming the stop is secured to an arm 52 of a head carriage and flying head 48 is carried at one end of the arm 102 which is hinged at its-other end to arm 101 by a spring hinge plate 103 urging the arms together so that a chamber 110 in arm 101 is closed off by arm 102. To bring head 48 into transducing correlation with a selected disc, gas, e.g. air, under pressure is supplied to chamber 110 via inlet 111 whereby arm 102 moves away from arm 101 until the disc/head and chamber 110/head forces balance. The head then follows disc wobble with a movement damped by pressurized chamber 110 from which gas escapes at a constant rate, to maintain a constant transducing force, through a path (112), Fig. 3 (not shown), between facing edges of arms 101, 102. In modifications, the chamber 110 may be formed in arm 102 rather than in arm 101, or arm 102 may be a flat resilient member working in a channelshaped arm 101, or path (112) may be closed by frictionless seals or an expansible balloon-type chamber may be secured between arms 101, 102, with an orifice being provided in the input line in the last two modifications to form a constant gas escape resistance to damp movement of arm 102 and head 48.
Patent GB-358052-A (GB)
Title: Improvements in or relating to travelling ladders for use in telephone exchanges and the like
IPC: E06C1/397
Filed: 1930-07-02
Abstract: 358,052. Ladders. AUTOMATIC TELEPHONE MANUFACTURING CO., Ltd., Strowger Works, and WICKERSON, S. A., 21, Roskell Road, Hunts Cross, both in Liverpool. July 2, 1930, No. 20095. [Class 20 (ii).] A travelling ladder for use in telephone exchanges, libraries, and the like, has wheels 14 mounted on s t u b axles at both upper ends of the sides, to run on rails 31 which are supported from bearers 41 disposed at rightangles to the upper face portion of the rack along which the ladder moves, so that easy access to the whole face of the rack is provided, the rails being sufficiently far apart to allow passage of the body of the operator mounted on the ladder. The bases of the sides of the ladder are provided with rubbertyred wheels 23 which are adapted to be locked by hand-operated stops 28 engaging holes in the wheels. Safety pillars 20 are disposed on the ladder sides above and below each rail and the upper ones are provided with heads to engage the rail in the event of breakage of the supporting wheel or its spindle.
Patent GB-763025-A (GB)
Title: Automatic egg counter and recorder for poultry battery cages
IPC: A01K31/16
Filed: 1954-07-09
Abstract: 763,025. Egg counters. STUBBS, J. S. July 11, 1955 [July 9, 1954], No. 20101/54. Class. 5(2). [Also in Group XIX] An egg counting and recording unit for poultry cages wherein the floor slopes towards an egg rest comprises a revolvable member 4 supported below the floor 3 of the cage and coupled to the drive of a mechanical counter 1 (see Group XIX). As the egg rolls towards the egg rest 6 it contacts one of the pins 7 set at right angles to the axis of the member 4 causing the said member to rotate, thereby recording its presence on the counter.
Patent GB-662119-A (GB)
Title: Improvements in or relating to connectors for air pumps
IPC: B60S5/04
Filed: 1949-08-02
Abstract: 662,119. Inflating pump connectors. RAZ, J. Aug. 2, 1949 [June 30, 1949]. No. 20102/49. Class 99 (i). An inflating pump connector comprises a housing 1 into which a tyre-valve enters through the opening 8, having an apertured member 4 with a stem 5 for unseating the tyre-valve member, and a non-return valve in the form of a rubber disc 6 which rests on the inner side of the member 4 with its edge engaging the wall of the housing around the air inlet 9.
Patent GB-465699-A (GB)
Title: Improvements in or relating to electric lamp brackets
IPC: F21V21/26
Filed: 1936-07-22
Abstract: 465,699. Hinges. SCHRODER, H. July 22, 1936, No. 20269. Convention date, Oct. 19, 1935. [Class 65 (ii)] [Also in Group XI] An electric-lamp bracket comprises an arm a provided at the inner end of a hollow body b pivotally mounted on a clamping bolt h between the limbs i of a yoke member k pivoted to a wall plate p about an axis at right-angles to the bolt h. As shown, two lugs o on the member k are connected by bolts r to lugs q on the plate p. Either pair of lugs o or q may be replaced by a cylindrical eye and a single bolt employed. The body b may be made in halves clamped together by the limbs i.
Patent GB-459921-A (GB)
Title: Improvements relating to floor-polishing or -cleaning devices
IPC: A47L11/04
Filed: 1935-07-16
Abstract: 459,921. Floor - polishing pads. BAKER, R. F., Hatt Common, Newbury, Berkshire, and PREECE, H. A., 91, High Street, Thame, Oxfordshire. July 16, 1935, No. 20289. [Class 19] The floor polishing or cleaning device is of the type having a continuous strip of textile material removable in layers to expose successive clean surfaces and is characterized by a base 1, Fig. 2, freely and pivotally mounted so as to be completely reversible. Two rectangular blocks 1, Fig. 1, are pivotally mounted on a cross-shaft 2 and are connected by a pin 8 to prevent relative movement. Textile or other material 9 is wrapped completely round each block to form a number of superposed layers secured by nails 10, Fig. 3, or other suitable means such as adhesive at front and rear sides. Felt pads 11 serve as shock absorbers. Material 9 is removed by cutting adjacent the nails 10. When all the material is removed the blocks 1 may be replaced by newly covered blocks by releasing clips 8. Blocks 1 can be recovered. Layers 9 may be held in place by spring clips 13 as in Fig. 4.
Patent GB-352724-A (GB)
Title: Improvements in lamp reflectors
IPC: F21V5/00
Filed: 1930-07-04
Abstract: 352,724. Annular reflecting prisms. GRAL PRISMA GES., 3, Prinz Eugenstrasse, Vienna. July 4, 1930, No. 20295. Convention date, Nov. 18, 1929. [Classes 39 (ii) and 75 (ii).] In an annular reflecting prism made of glass or other light permeable material and comprising a cylindrical or slightly conical light-receiving face a at right-angles to a light-emitting face b, the lightreflecting face c is convex to rays from a source of light enclosed by the prism. The Specification as open to inspection under Sect. 91 (3) (a) states also that, in cross section, the light-emitting face may be curved and the light-reflecting face plane or concave, and that all three faces of the prism may be corrugated. It also refers to a " cone-shaped reflecting recess" mounted within the prism, the arrangement of the prism inside an electric lamp bulb, and the arrangement of a number of prisms around a tubular bulb. This subject-matter does not appear in the Specification as accepted.
Patent GB-928209-A (GB)
Title: Process for the purification of polymers
IPC: B08B3/12
Filed: 1960-06-09
Abstract: Removing catalyst residues from a synthetic polymeric material by a process which comprises continuously passing impure polymeric material with a liquid (1) upwards within a column provided with internal obstructions, and continuously passing a liquid (2), heavier than liquid (1) and at least not completely miscible with (1), downwards within the column, at such a rate that liquid (1) forms a continuous phase in the column, and imparting to the liquids in the column flow pulses at substantially regular time intervals, e.g. by a pump, and continuously withdrawing purified polymeric material together with liquid (1), from the top section of the column, and liquid substantially free of polymeric material from the bottom section of the column.  Liquid (1), may be the polymerization medium and it may contain the impure polymer as a dispersion, emulsion, or a solution.  Before the polymer and liquid (1) is supplied to the base of the column, it may be treated with an alcohol such as water-free methanol, ethanol, isopropyl alcohol, or butanol, to which a small amount of an acid, or base, may be added.  The liquid (2), may be water, water containing 96-70% by volume of methanol, or an alcohol thickened by a polar substance such as urea, sulphuric acid, sodium hydroxide, sodium acetate, acetic acid, ethylene glycol, or glycerol. A wetting agent may be present in liquids (1) or (2).  The process may be carried out using two columns in series.  In the examples the catalyst residues removed are of the Ziegler-type.  The polymers purified may be homo- and copolymers of ethylene, propylene, 1-butene, isobutene, styrene, butadiene, isoprene, or chloroprene.
Patent GB-1586655-A (GB)
Title: Pyrido-indole transquilising agents
IPC: A61P25/22
Filed: 1978-05-18
Abstract: 5-Phenyl-2,3,4,4a,5,9b-hexahydro-1H-pyrido[4,3-b]indoles, which are substituted in position 2, and their salts of formula I, the symbols of which are explained in Claim 1, are described. These compounds and their salts are therapeutically active and can be used as medicaments for controlling schizophrenic symptoms. The pharmaceutical compositions are also described. The new compounds and their salts can be obtained by processes which are especially distinguished from others by the formation of the substituent in position 2; the latter is obtained by processes which each contain a reduction stage, from compounds which already have the pyridoindole system. <IMAGE>
Patent GB-993492-A (GB)
Title: New antibiotic 9971r.p. and its process of preparation
IPC: A01N63/28
Filed: 1962-05-28
Abstract: The antibiotic 9971 R.P. is produced by aerobically cultivating Streptomyces Gascariensis NRRL 2955 or a 9971 R.P.-producing mutant thereof on an aqueous nutrient medium containing assimilable sources of carbon, nitrogen and inorganic substances and separating the antibiotic formed.  Cultivation is preferably carried out at pH 6.0-7.8 at a temperature of 23 DEG  to 35 DEG  C. for 2 to 5 days. The antibiotic is extracted from the culture filtrate with a water-immiscible organic solvent such as an aliphatic alcohol of four or five carbon atoms and from the filter cake with an aliphatic alcohol.  The antibiotic is isolated (a) by concentration or (b) by addition of water at pH 7 and a non-solvent for the antibiotic such as petroleum ether, cyclohexane or diisopropyl ether to the organic solvent extract. The crude product is purified by dissolving it in alkaline water pH not greater than 10; acidifying; extraction with a chlorinated organic solvent, e.g. chloroform, containing a water-immiscible aliphatic alcohol; concentration to remove the chlorinated organic solvent; crystallizing the product from the resulting alcoholic solution; dissolving the resulting crystals in a mixture of chlorinated organic solvent and phenol; adding a water-immiscible aliphatic alcohol; concentrating and crystallizing as before; suspending the resulting product in aqueous alkaline medium; neutralizing and separating the crystals obtained.  White crystalline antibiotic 9971 R.P. has a melting point of 265 DEG  C.; an optical rotation [a]20D = + 292 DEG  (c=1 pyridine); is soluble in pyridine, dimethyl formamide, acetic acid and methanol, very slightly soluble in butanol, acetone, benzene, chloroform and dioxan and practically insoluble in water; is amphoteric; has an elemental analysis c = 59.30 - 59.35%, H = 7.55 - 7.85%, O=29.30-29.55% and N=1.90-1.95%; has U.V. maxima at 244 mm  (E1 cm1%=94), 280 mm  (E1 cm1%=260 shoulder), 292.5 mm  (E1 cm1% 512), 306 mm  (E1 cm1%=790) and 321 mm  (E1 cm1% 695) as determined on a solution of 1 mg./c.c in dimethyl formamide diluted 1/100 in water; an I.R. spectrum as shown in Fig. 2; and gives negative biuret, sakaguchi, ferric chloride, Pechman, Tollens and Elson Morgan reactions; positive ninhydrin, Molisch, Millon, Fehling, Oische, Boreufreund and bromine in chloroform reactions and with conc. sulphuric or phosphoric acid gives a fugitive pink colour turning to yellow, green and brown black and with fuming hydrochloric acid gives a green colour which turns blue.  The antibiotic is topically active against fungi, against mouse tumours and mycoses in man and animals.
Patent GB-262495-A (GB)
Title: Improvements in gate valves, full way cocks and the like
IPC: F16K29/00
Filed: 1926-06-14
Abstract: 262,495. Goble, J. June 14, 1926. Actuating - mechanism.-In a screwoperated lift or plug lift valve of the type which is moved axially without rotation, the lateral projections for preventing rotation consist of screw - threaded pins 5, Figs. 1 and 2, and the plug or valve is formed with an unthreaded cavity 2 which receives the whole of the screwed part of the spindle 3 when the valve is fully open. This construction prevents straining of the screw threads. The plug 1, Fig. 1, is formed with the inner and outer surfaces sloping towards each other, as shown, thus providing a narrow or sharp lower edge 4 which cuts its way through any deposits accumulating at the bottom of the valve casing.
Patent GB-1341104-A (GB)
Title: Method for preparation of aminodalkane-sulphonic acids
IPC: C11D1/00
Filed: 1971-04-19
Abstract: 1341104 Amidoalkane - sulphonic acids LUBRIZOL CORP 19 April 1971 [3 Feb 1970 (2) 10 Dec 1970] 20453/71 Heading C2C An amidoalkane-sulphonic acid is prepared by reacting a nitrile and an olefine having less than 10 carbon atoms with sulphuric acid of at least 90% concentration (including oleum), these being the only reactive substances present, and recovering precipitated product. The products derived from RCN and R<SP>2</SP>R<SP>3</SP>C=CR<SP>4</SP>R<SP>5</SP> are of formula RCONHC(R<SP>2</SP>R<SP>2</SP>)C(R<SP>4</SP>R<SP>5</SP>)SO 3 H. Inert diluents may be present and the process may be continuous; the sulphuric acid may be concentrated in situ. Examples prepare 2-acetamido - 2 - methylpropane sulphonic acid, 2- benzamido - 2 - methylpropane sulphonic acid, 2 - decanamido - 2 - methylpropane sulphonic acid, N,N<SP>1</SP> - bis - 2 - [2 - methyl - 1 - sulphopropyl] - hexanediamide, 2 - acrylamidopropane sulphonic acid, 2 - acrylamidobutane sulphonic acid, 2 - acrylamido - 3 - methylbutane sulphonic acid, 2 - acrylamido - 2,4,4 - trimethylpentane sulphonic acid, 2-acrylamidocyclohexane sulphonic acid, 2-acrylamido-2-methylpropane sulphonic acid, 2 - acrylamido-2- phenylethane sulphonic acid, 2-acrylamido-2- (methylphenyl) ethane sulphonic acid, and 2- acrylamido-2-(chlorophenyl) ethane sulphonic acid. Other products and suitable reactants are listed.
Patent GB-221226-A (GB)
IPC: C07C37/045
Filed: 1924-08-30
Abstract: Thymol is prepared by coupling 2-cymidine with an aromatic diazo compound, isomerizing the diazoamino dye formed to the aminoazo form, eliminating the free amino group, reducing the product to obtain 5-cymidine and finally replacing its amino group with the hydroxyl group by diazotization and boiling.  The isomerization step may be rendered unnecessary by employing the acetyl derivative of 2-cymidine as the starting material, in which case the acetyl group must be removed by saponification after the formation of the dye.  According to the examples, (1) sulphanilic acid is diazotized and 2-cymidine added; the diazoamino dye is filtered off and heated in the dry state with aniline and its hydrochloride; the amino group of the aminoazo dye thus formed is eliminated by diazotization and reduction and a hot solution of the product then treated with sodium hydrosulphite, titanous chloride or stannous chloride; sulphanilic acid is precipitated on cooling, leaving 5-cymidine in solution; this latter is extracted with benzene, precipitated as the hydrochloride, diazotized and boiled to produce thymol; (2) naphthylaminesulphonic acid is diazotized, coupled with acetyl-2-cymidine to form an aminoazo dye, which is salted out, filtered off, diacetylated, the free amino group eliminated and finally treated as in the preceding example.  The Specification as open to inspection under Sect. 91 (3) (a) describes also the addition of the isomerizing agent to the mixture of 2-cymidine and aromatic diazo compound, and states that the latter may also be prepared from aminocarbonic acids or from 2-cymidine itself.  This subject-matter does not appear in the Specification as accepted.
Patent GB-441616-A (GB)
Title: Apparatus for the manufacture of pneumatic tyres
IPC: B29D30/14
Filed: 1934-07-13
Abstract: 441,616. Tyre -building machines. DUNLOP RUBBER CO., Ltd., 32, Osnaburgh Street, Euston Road, London, and WILLSHAW, H., and BLANCHARD, L. S. c/o Dunlop Rubber Co., Ltd., Fort Dunlop, Birmingham. July 13, 1934, No. 20558. [Class 144 (i)] In a machine comprising spring-pressed spinning discs 1 for consolidating tyre-components on a rotary building- drum, of the kind described in Specification 441,478 in which the spinner-arms 2 are pivoted on a spindle 13 carried by a saddle 4 and the loading- springs are connected to a slide 7, regulating-means are provided for controlling the speed of these devices during their operative traverse towards the axis of the drum. As shown, the saddle 4 is connected to a power - cylinder 40 movable over a fixed piston 43, the cylinder 40 being connected to, and its operative movement controlled by, the piston 48 of a fluid dashpot 49. The latter has terminal ports 52, 55 leading respectively to an adjustably-loaded leak-valve 50 and a tank 53. The load on the valve 50 is determined by the selective positioning of a series of tracks 58 on a rotary camspindle 56. At the end of the operative traverse, the spinners 1 are spread clear of the building- drum by means of a power-cylinder 60 and piston-rod 61 pivoted to the rear ends of the spinner-arms 2. Fig. 5 shows the layout of the fluid-pressure system in which a, main control-valve 66 directs the fluid to a branch 67 leading to the cylinder 40, or a branch 83 leading to the cylinder 60. An electromagnetic valve 68 is fitted in the branch 67 for automatically shutting-off supply to the cylinder 60 when the building-drum is stationary. In modifications (not shown), the fluid-pressure regulating-means may be replaced by mechanical or electrically-operated devices (or both) ; the movement of the spinners to or away from the drum may be effected, wholly or in part, by gravity, spring, or other mechanical devices ; and, the loading-springs for the spinner-arms may be replaced by, or combined with, fluidpressure means. The invention may be applied to tyre-building machines of the kind described in Specifications 438,741 and 440,994.
Patent GB-853581-A (GB)
Title: Improvements in or relating to constructional building or engineering elements
IPC: F16B37/04
Filed: 1957-06-29
Abstract: 853,581. Constructional metalwork. DENNIS, J. P. June 29, 1957, No. 20618/57. Addition to 782,428. Class 20(2) [Also in Group XXV] The parent Specification which comprises an angle section having inclined walls 2, 3 and inwardly directed flanges 7, 8 between which a nut 9 is adapted to be passed and turned to clamp under the flanges and to engage with the inclined walls when engaged with a bolt 12, is modified by providing springs 15 embracing each end of the nut and bearing on the inclined walls 2, 3 which hold the nut in position but allow it to slide. Teeth 10 are provided on the nut to engage the flanges 7, 8.
Patent GB-968653-A (GB)
Title: Maximum energy absorbing hydraulic cushion
IPC: B61D45/00
Filed: 1963-05-23
Abstract: 968,653. Hydraulic buffers. PULLMAN Inc. May 23, 1963 [Dec. 13, 1962], No. 20683/63. Heading F2S. An hydraulic cushion device for protecting lading carried in railway cars from impacts of 12 m.p.h. and up comprises a cylinder 11 in the open end of which is disposed telescopically a hollow piston rod 12 with its piston head 24 adjacent to which are ports 36 in the rod whereby the inside 54 of the cylinder 11 connects with a flexible fluid reservoir 13, a metering rod 16 fixed to the closed end 21 of the cylinder and extending through an orifice in the proton head 24, a cylinder head 14 intermediate of the closed and open ends through which the rod 12 extends to define an annular orifice and to which one end of the flexible reservoir 13 is attached whilst its reversely turned other end is fastened to the piston rod 12, and resilient means 17 in the form of a spring disposed between the piston assembly and the cylinder, the device being characterized in that the cylinder bore is the minimum that will satisfy its functional requirements and that the hollow proton rod has, remote from the piston end, a reduction in its outside radii equal to or exceeding the thickness of the flexible boot. The reservoir 13 is attached at the junction between the reduced and full-diameter portions of the rod and lies in contact with the rod along the reduced diameter portion. Fig. 1 shows the device fully extended and Fig. 2 shows it closed, after impact when the hydraulic fluid from the high-pressure side 54 has been driven by way of the orifice in the piston head, the ports 36 and the annular space between the head 14 and the piston rod into the flexible reservoir 13 where it is retained until returned at slow speed by action of the spring 17. The intermediate cylinder head 14 is fixed in position by snap-rings on either side which engage in grooves inside the cylinder bore and the ends of the reservoir 13 are clamped thereto and to the piston rod 12 by clamp rings (Fig. 4, not shown). Specification 897,293 is referred to.
Patent GB-1254553-A (GB)
Title: Motor vehicle wheel mountings
Inventor: WEBB ALLAN GEORGE
IPC: B60B27/00
Filed: 1968-05-02
Abstract: 1,254,553. Vehicle suspensions. BRITISH MOTOR CORP. Ltd. 25 April, 1969 [2 May, 1968], No. 20758/68. Headings B7D and B7H. A motor vehicle road wheel mounting, for use with a Macpherson type independent suspension, comprises a hub 2 formed of parts 3 and 4 bolted together at flanges 5 and 6 so as to axially locate between respective flanges 13, 14 a self contained bearing assembly 7 which supports a stub axle 8 of wheel 1. The wheel 1 is adapted to be bolted to the stub axle, and bolts 9 bolt the stub axle to a disc 23 of a disc brake. The inner end of the hub is rigidly connected with a strut 17 which is attached at its opposite end 18 to the vehicle body. A lug 19 of hub part 3 is connected by means of a ball-and-socket joint 20, 21 to a control arm 22.
Patent GB-819079-A (GB)
Title: Improvements in rotary drilling machines
IPC: E21B44/06
Filed: 1956-07-04
Abstract: 819,079. Portable drilling-machines. SEAWRIGHT, R. M. F. July 4, 1956 [July 7, 1955], No. 20781/56. Addition to 762,847. Class 83 (3). A drilling-machine comprises fluid-pressure motors 15, 16 for rotating and for feeding the drill, the power of one motor being controlled With reference to the power of the other motor. The motor 15 rotates the feed screw 10 and drill chuck 11 through gears 14, and is fed from a line 20 through a shut-off valve 21. The motor 16 rotates a feed nut 18 through gears 17 and is fed through a valve 22. The inlet and exhaust lines of the motor 15 are connected to opposite sides of a diaphragm 23, which controls the valve 22 through a link 25. As the power to the motor 15 increases, that to the motor 16 decreases, and if the motor 15 stalls, the motor 16 is shut off. In a modification, a centrifugal governor driven by the motor 15 controls the valve 22. In a further modification, a metering device 30, Fig. 2, is rotated by the motor 15 to control the air supply to the motor 16. In a final modification, the motor 15 rotates a plate 52, Fig. 4, connected to a plate 53 by way of a torsion spring 55. The plates have holes 57 allowing air to pass from a line 58 to the motor 16 to an extent determined by the torque exerted by the motor 15.