baber/WOPTO huggingface dataset:
Patent GB-605475-A (GB)
Title: Improvements in or relating to thread brakes
IPC: D03D47/00
Filed: 1945-10-22
Abstract: 605,475. Tensioning yarns. SULZER FRERES SOC. ANON. Oct. 22, 1945, No. 27733. Convention date, Nov. 22, 1944. [Classes 120(ii) and 142(ii)] A thread is braked by pressing it against a yieldable material (such as rubber, leather, or fabric) held taut. As shown, the thread passes transversely across two endless belts 17 in succession and is pressed against each in turn by fingers A, B operated by cams 12. The belts are tensioned by springs 22 (which may be set to different tensions for braking the weft in gripper looms) and are moved to distribute wear by ratchet mechanism 29. In another embodiment, the thread passes between two endless belts, arranged at an angle to each other and to the thread. In a further embodiment, the thread is intermittently pressed against a membrane by a camoperated plunger; the membrane is loaded by air pressure and is rotated by worm gearing.
Patent GB-1013904-A (GB)
Title: Piperazinium salts and compositions containing them
Inventor: CALDWELL ALBERT GORDON
IPC: C07D219/12
Filed: 1962-07-19
Abstract: The invention comprises pharmaceutically acceptable salts of piperazinium cations of the formula <FORM:1013904/C2/1> or a pharmaceutically acceptable acid addition salt thereof, wherein A represents a straight or branched saturated alkylene chain of 2 to 6 carbon atoms; B represents a group of the formula <FORM:1013904/C2/2> or <FORM:1013904/C2/3> or <FORM:1013904/C2/4> wherein R1 and R2 are the same or different (except that R1 and R2 may not both represent thienyl, naphthyl, phenyl or phenoxyethyl groups) and each represents an alkyl group of 1 to 10 carbon atoms, or a thienyl, naphthyl, phenyl or phenoxyethyl group, optionally attached to the nitrogen atom via a straight or branched saturated alkylene chain of 1 to 5 carbon atoms and optionally carrying in the phenyl ring one or more halogen, methoxy, acetamido or amino substituents; and R3 represents a methyl, ethyl, propyl or benzyl group, and the preparation thereof by reaction of a 9-substituted acridine, wherein the substituent is a reactive hydrogen-accepting atom or group, with a salt of a cation of the formula H2N.A.B; by reaction of a 9-(o -X-alkylamino) acridine or a 9 - (o  - X - alkylacylamino) acridine, wherein X is a proton accepting group or atom with a compound of the formula <FORM:1013904/C2/5> or <FORM:1013904/C2/6> and hydrolysing the product to the desired piperazinium cation where a 9-(o -X-alkylocylamino) acridine is used as starting material or by reaction of a 9-[o -(4-R1-piperazin-1-yl)-alkylamino] acridine, a salt of a 4-[o -(acridin- 9 - ylamino) alkyl] - 1 - R1 - 1 - R2 - piperazinium cation or a 4-[o -acridin-9-ylamino)-alkyl]-4-R3-1-R1-piperazinium cation with a quaternizing derivative of the remaining group. When the quaternizing group contains an amino group, said group may be protected by converting it into an acyl derivative, followed by hydrolysing to give the free amino group.  N-Substituted-N-aminoalktlpiperazines may be prepared by reacting an N-substituted piperazine with a phthalimido alkyl halide followed by hydrolysis of the phthalimido alkyl piperazine so formed.  Compounds of the formula H2N.A.B may be prepared by hydrolysing the corresponding phthalimidoalkylpiperazinium salts which may be prepared by the reaction of a phthalimidoalkyl halide with the corresponding piperazine or by reaction of the corresponding phthalimidoalkyl-piperazine with the appropriate quaternizing agent. 9 - (2 - Chloroethylamino) acridine may be prepared by treating the corresponding hydroxy compound with thionyl chloride.  Therapeutic compositions with activity against trypanosomiasis, in the form of solutions, suspensions, tablets, granules or powders for parenteral or oral administration, comprises salts of cations of the Formula I and pharmaceutically acceptable acid addition salts thereof with a suitable pharmaceutical carrier.
Patent GB-160213-A (GB)
Title: Improvements in or relating to envelope making machines
IPC: B31B19/00
Filed: 1919-11-11
Abstract: 160,213. Salter, W. J. Nov. 11, 1919. Envelopes, making.- Relates to the folding devices of envelope making machines, such as are described in Specification 1043/03, [Class 146, Writing instruments &c.], in which an intermediate segment is provided, coacting between the folding-flap and its supporting-bar, to prevent the envelope blank from being nipped between the back edge of the folder and the supporting-bar. The invention consists in pivoting the segment, shown integral with the folding flap a<1>, at c to the folder d which is secured to the rocking shaft e, and in inserting a coil spring g between the parts a, d. Thus the back edge of the flag a<1> is kept in contact with the face k of the supporting-bar f as the flap oscillates and the paper is prevented from being nipped between the flap and the supporting-bar. In a modification, the spring may be housed horizontally in the part d and exert its pressure against a vertical extension of the flap. The spring may also be arranged between the part d and extensions of the pivot arms of the flap a<1>.
Patent GB-483380-A (GB)
Title: An improved means for producing metal ingots
IPC: B22D18/06
Filed: 1936-10-14
Abstract: 483,380. Casting ingots. EVERSDEN, J. A. Oct. 14, 1936, No. 27922. [Class 83 (i)] Apparatus for casting metal ingots under reduced pressure or in the presence of an inert or reducing gas comprises an airtight chamber with an exterior teeming head from which metal passes through a valve to a teeming gland connected to one or more moulds mounted in a removable carriage within the chamber. The chamber 1, exhaustible by pipes 8, is built up of cast iron plates and has its front closed by a vertically sliding flanged door 14 and plastic refractory sealing material 16. The door is lifted by a gear 17 and has rollers 19 running in channel guides 18 so that a wedging action is obtained which secures an airtight joint. The chamber has rails to accommodate the rollers 26 of the ingot mould assembly which comprises a bed plate 22 beneath which is secured a distributing box 23 which has channels 29 conveying metal from a central passage 38 to the bases of any required number of moulds 25. At the top of the chamber a removable gland 27 fits in the conical upper end of the central teem 24 and to the top of this gland is bolted a valve box 11 including a slidable gate valve lined with pipe clay and operated from a hand lever 53 and rod 48. A pouring head 28 is secured above the valve box. By releasing the bolts 34 the valve box my be swung aside about a pivot 33 which is helically grooved and coacts with a ramp 9 to lift the valve box as it is swung to the dotted line position in Fig. 1. The gland 27 may then be removed to allow the mould assembly to be run in or out. During the pouring the required vacuum is maintained in the chamber by a pump, or inert or reducing gas may be introduced. The structure may be modified to provide for top filling of the moulds.
Patent GB-607939-A (GB)
Title: Improvements relating to the measurement of screw-threads
IPC: G01B5/20
Filed: 1944-12-08
Abstract: 607,939. Screw-thread gauges. BOOTH, C. H., and BRIDGE, J. F. Dec. 8, 1944, No. 28005/47. Divided out of 595,262. [Class 106 (ii)] Apparatus for measuring the crest and effective diameters of external screw-threads comprises a base or frame 7, a micrometer head 10 and a slidable member or plunger 11 mounted coaxially on the frame for movement towards and away from one another so as to define a measuring gap between them, a measuring device (e.g. dial gauge 13) associated with the plunger 11 for indicating its axial movement, a thread-engaging member 17 attached to the plunger and provided with thread-flank engaging surfaces inclined to each other at the standard angle of the thread to be measured, a normally fixed abutment surface 9 arranged, during measurement, to support the crests of the threads of the work-piece 12 on the side opposite to that engaged by the micrometer 10, whereby a direct measurement of the crest diameter of the threads may be obtained by a micrometer reading of the work-piece while supported against the abutment 9 and the effective thread diameters may be computed from the readings of the micrometer and the plunger-operated measuring device 13. An adjustable supporting table 15 and a lamp 16 may be provided.
Patent GB-677450-A (GB)
Title: Improvements in and relating to wired broadcasting systems
IPC: H04H20/79
Filed: 1949-11-01
Abstract: 677,450. Distributing music &c. COMMUNICATIONS PATENTS, Ltd., and EASTON, K. J. Feb. 1, 1951 [Nov. 1, 1949], No. 28005/49. Class 40 (iv). Television transmission over a wired broadcasting system is restricted to certain selected sections so that undue attenuation of the highfrequency transmission is avoided, each selected section 12, 22 affording both services being isolated from the rest of the system by highfrequency chokes or tuned rejector circuits 4, 14 and terminated by characteristic impedances 16, 26. As shown in Fig. 1, audio frequency or low frequency carrier signals providing one or more sound programmes are fed into a distribution system over an amplifier 1. High-frequency television signals from a receiver 10 are applied to the selected line section 12, 22 over a transformer-condenser circuit 11, 13 having a high impedance to the broadcasting signals. Television receivers 17 are transformer-coupled to the selected section over condensers and resistors 19, 20 which reject the broadcasting signals, while loudspeakers 28 are connected in the selected section over resistances 30 or chokes 32 so the insertion loss at television signal frequencies is low. In an embodiment comprising two line circuits 35, 38, Fig. 2, in which each circuit carries a different audio frequency signal, a branch circuit 41, 43 is coupled over condensers 42 so that television signals on line 35 are available on both wires of the branch and also on line 39. Chokes or rejector circuits 37, 40 restrict the lines 36, 38 to the sound broadcast facilities only.
Patent GB-405402-A (GB)
Title: Improvements in plaster-like compounds and articles made therefrom
IPC: C04B28/14
Filed: 1932-10-10
Abstract: Bicarbonate of soda is used as the aerating agent alone or in combination with the use of pressure in moulding to produce porous products from the composition described in Specification 389,663 which comprises asbestos or other binding fibres mixed with a calcined mass of plaster of paris and peat fibre.
Patent GB-846776-A (GB)
Title: Improvements in or relating to means for automatically regulating the steam packing of the glands of steam turbine installations
Inventor: ERSKINE DAVID
IPC: F01D11/06
Filed: 1957-09-06
Abstract: 846,776. Stuffing-box substitutes. CAMMELL LAIRD & CO. (SHIPBUILDERS & ENGINEERS) Ltd. Aug. 8, 1958 [Sept. 6, 1957], No. 28146/57. Class 122 (5). [Also in Group XXIX] The flow of steam to the glands 29 of a steam turbine 28 is controlled by a regulator 31 (see Group XXIX) having a spring- or weightloaded valve associated with a dashpot, the valve being responsive to pressure variations in a gland steam reservoir 30. In operation, steam is fed into the regulator through an inlet 11 and passes through an outlet 13 into a water separator 33 associated with a trap 34 and into the reservoir 30 which is connected by a drain 35 to the main condenser 36 ; a leak-off port 12 in the regulator may be connected to the main condenser or to a gland vapour condenser, as shown.
Patent GB-1004197-A (GB)
Title: Improvements in and relating to moulds for the manufacture of tires
IPC: B29C33/42
Filed: 1963-07-16
Abstract: <PICT:1004197/C6-C7/1> A method of forming a partially finished tyre mould component comprises forging to form a shaped component from an aluminium alloy consisting by weight of .Cu.2.11-2.5% .Fe.0.9-1.3% .Mg.1.4-1.8% .Ni.0.9-1.2% .Ti.0.04-0.1% .Si.<0.25% .Al.balance, and subsequently solution heat-treating and partially artificially ageing said shaped component. In the embodiment described the heat-treatment comprises heating at a temperature of 850-895  DEG F. for at least 6 hours, rapidly quenching and then ageing for 1-3 hours at 350-460 DEG F.  The shaped component may then be finished by machining to form a tread pattern in the interior surface thereof, or by forming a tread pattern which is at least partially made up of elements of a second metal embedded in the interior surface of the mould. Vulcanizing of the tyre is carried out within The mould at 300-380 DEG F., resulting in continued age-hardening of the tyre mould during use.
Patent GB-953037-A (GB)
Title: Improvements in or relating to an apparatus for continuous casting of metal
Inventor: MEIER WALTER
IPC: B22D11/128
Filed: 1962-07-23
Abstract: 953,037. Continuous casting-machines. CONCAST A.G. July 23, 1962, No. 28192/62. Addition to 924,986. Heading B3F. In a continuous casting-machine as described in the parent Specification the casting guiding means is divided into two or more successive sections and at least the first section immediately following the mould is withdrawable together with the associated supporting means in a direction transverse to the longitudinal axis of the casting. The first section 7 is withdrawable on a truck 4 and the next section 5 may be either withdrawable or fixed. Each section comprises guide rollers such as 32, 52, Fig. 3, whose spacing may be varied as by spur gearing to accommodate different sizes of castings. The section 7 also supports an exchangeable guiding section 19, whose rolls are non-adjustable as to spacing.
Patent GB-265682-A (GB)
Title: Improved means for producing traffic control and other indications on a road or likesurface
IPC: E01F9/06
Filed: 1925-11-10
Abstract: 265,682. Nater, R., and Brice, W. Nov. 10, 1925. Surface markings and signs. - Road-surface guide lines and signs for traffic control are formed of a plurality of slightlydomed discs or polygonal plates a each secured to the paving material by a central spike or screw) and by a number of short integral anti-shear pins d. The discs are preferably cut away on one side g so as to interlock with an adjacent disc, or polygonal plates may have their straight sides abutting. The plates may be formed of non-rusting white metal or stainless steel.
Patent GB-740861-A (GB)
Title: Improvements in or relating to tile floor covering for stables
Inventor: WAGNER KARL SCHWARZWAELDER ART
IPC: A01K1/015
Filed: 1953-10-14
Abstract: Fibro-cement compositions for floor tiles comprise sawdust treated with calcium chloride and a nitrite, volcanic stone, quartz sand or gravel, and Portland or blast furnace slag cement.
Patent GB-1415011-A (GB)
Title: Halopheols
IPC: C07C69/96
Filed: 1972-06-16
Abstract: 1415011 Halophenols IMPERIAL CHEMICAL INDUSTRIES Ltd 23 May 1973 [16 June 1972 27 June 1972] 28297/72 and 30049/72 Heading C2C [Also in Division C3] The invention comprises halophenols of the Formula (I) in which Y is F, Cl or Br. They may be prepared by hydrolysing a carbonate of Formula with a base and recovering the halophenol. The carbonate used as starting material may be prepared by reacting under Friedal Crafts conditions, a carbonate of the Formula (III) in which X is Cl or Br with a 4-(4-halobenzoyl) diphenyl ester in which the halogen is F, Cl or Br. The halophenols may be converted to alkali metal salts.
Patent GB-1181018-A (GB)
Title: A Device for Variable Optical Reduction or Enlargement
Inventor: LINDE HANS
IPC: G02B15/02
Filed: 1967-06-20
Abstract: 1,181,018. Photographic type-composing. H. BERTHOLD MESSINGLINIENFABRIK UND SCHRIFTGIESSEREI A.G. 20 June, 1967, No. 28402/67. Heading B6W. An optical system for variable magnification of the image in photographic type composing apparatus is adapted to operate with the object plane o, the image plane b and the objective lens I fixed, the magnification being varied by movement of reflecting prisms p1, p2 in such a way that the image remains in focus. The prisms p1, p2 are moved parallel to the optical axis of the objective I by pins st1, st2, each connected to one of the prisms, and being movable along a guide line F by a cam w pivoted at d1 and having two perpendicular surfaces each of which contacts one of the pins st1, st2. In an alternative embodiment, Figs. 4-6 (not shown), pins (d3, d4) are connected by rods (h1, h2) to a freely moving pivot (d5) which is connected by a rod (h3) to a fixed pivot (d2), whereby the pin may be moved by pivoting the rod (h3). In type composing apparatus, a character matrix is located at the object plane o and a photographic plate at the image plane b.
Patent GB-809044-A (GB)
Title: Improvements in or relating to fuel injectors for diesel engines
IPC: F02M61/10
Filed: 1956-09-17
Abstract: 809,044. Fuel injectors. LICENCIA TALALMANYOKAT ERTEKESITO VALLALAT. Sept. 17, 1956 [Sept. 19, 1955], No. 28404/56. Class 7(3) [ALso in Group XIX] A fuel injector comprises a valve 3 surrounded by inner and outer cylinders 2, 1, between which are formed fuel channels 4 leading to an annular space 7 below a disc 5 on which the valve 3 seats, the fuel flowing from the space 7 through bores 8, Fig. 4, in the disc 5 to the pressure space 9 adjacent the valve seat. The channels 4 are formed by ribs on the outer surface of the cylinder 2 and the fuel in flowing therethrough cools the injector and is itself heated. The disc 5 may be provided with projecting pins which engage in corresponding bores in the cylinder 2 and permit turning of the disc, by turning the cylinder 2, to grind it on to its seat. The upper edge of the inner cylinder 2 initially projects a small distance H above the outer cylinder so that when the nozzle is positioned in the engine and the inner cylinder pressed into the outer cylinder by the fastening means acting on the projecting portion, the parts 1, 2, remain under tension and compression respectively. In a modification, Fig. 7, the ribs 4a on the cylinder 2 are arranged so that the fuel is filtered in flowing from the inlet passages 12 to the outlet passages 13 and in Fig. 8, the disc 5 is provided with grooves 19 in its upper surface which lead part of the fuel directly from the passages 4 tangentially into the chamber 9 so as to produce rotation of the fuel therein.
Patent GB-717109-A (GB)
Title: Improvements in or relating to panels and articles which include inorganic filamentsand cementitious compositions
Inventor: BIEFELD LAWRENCE PAUL
IPC: C04B28/14
Filed: 1952-11-11
Abstract: <PICT:0717109/IV (a)/1> Moulded boards &c. are made from glass filaments &c. more than 1/4 -inch long and, e.g. up to 10 per cent. of the product, together with a cement powder, e.g. Portland, gypsum, or magnesium oxychloride or-oxysulphate, and a synthetic resin, e.g. in proportions 30 to 95 parts of cement to 5 to 70 of resin.  The resin may be an amide-aldehyde, e.g. urea-, or melamine-aldehyde, condensate and some of the water of condensation may aid in setting the cement.  Hydrolyzed keratin may be included as a retarder for gypsum cement, and hydrochloric or sulphuric acid, or ammonium-, tin-, zinc-, iron-, or aluminium chloride as a resinification catalyst, and sodium bisulphate, -chloride, -sulphate, or-acetate as a seeding agent for the gypsum, and zinc stearate as a lubricant. The mixture may be compressed between dies at 500 to 5,000 lbs. per sq. in. pressure and at 220-300 DEG F. to cure the resin &c. and hydration may be completed by immersion in water for 8 to 24 hours. The composition may be foamed, e.g. using sodium, potassium or ammonium salts of alkyl sulphonic acids to produce a highly porous product.
Patent GB-898446-A (GB)
Title: Fluid operated servo steering mechanisms
IPC: B62D5/06
Filed: 1958-09-05
Abstract: 898,446. Fluid-pressure servomotor-control systems. JACOTTET, J.-L. Sept. 5, 1958, No. 28546/58. Class 135. [Also in Group XXXI] A fluid-operated servo-steering mechanism comprises a jack 1, valves 13, 14 for controlling the jack, a lever 25 to transmit the output movement to the steered wheels, and a lever 23 to transmit the input movement from the steering column to the valve and to the lever 25, both levers being subjected in operation to turning moments acting in the same direction of rotation. The lever 23 is mounted on a shaft 27 coupled to the steering column and is connected by an axle 28 to the lever 25 and by a joint 22 to a rod 8 and a cam 5 for actuating the valves 13, 14. The joint 22 has a play of about 15 millimetres inside a joint 24 connecting the jack 1 to the lever 25 which is also coupled at 29 to the steered wheels. When the lever 23 is rotated it rotates the lever 25 about the joint 24 to turn the steered wheels and provide " feel " until the jack 1 begins to rotate the lever 25 about the axle 28, the jack being actuated after the lever 23 has displaced the cam 5 to open one of the valves 13 or 14. When the valve 13 is opened the space 15 is connected to exhaust through passages 16, 18, the valve 13, and passages 11, 12, fluid entering the space 21 to move the piston 4 to the right while when the valve 14 is opened fluid is admitted to space 15 through the passages 20, 16 to move the piston to the left. The system may be operated manually if the hydraulic pressure fails.
Patent GB-1222320-A (GB)
Title: Load carrying additives to lubricants
IPC: C10N30/06
Filed: 1969-06-05
Abstract: 1,222,320. Lubricants. MOBIL OIL CORP. 5 June, 1969 [22 July, 1968], No. 28558/69. Heading C5P. Lubricants comprise a mineral or synthetic lubricating oil base, 0À05-10 wt. per cent of dioctadecyl or dioleyl phosphonate and 0À05-10 wt. per cent of an organic sulphur containing compound. A sulphurized mineral oil can be used as both the lubricating base and as the sulphur compound: other suitable sulphur compounds are sulphurized sperm oil, lard oil and palm oil; and polysulphides of ethylene, propylene, butylene and amylene, e.g. sulphurized isobutylene containing 30-65 wt. per cent sulphur, t-butyl trisulphide and di tbutyl disulphide. Suitable synthetic lubricating bases are long chain alkanes, olefin polymers, esters of polyhydric alcohols and monocarboxylic acids, esters of monohydric alcohols and dicarboxylic acids, polyglycol ethers, polyphenyl ethers and polysiloxane fluids.