baber/WOPTO huggingface dataset:
Patent GB-996619-A (GB)
Title: Improvements in protective helmets
Inventor: DENNETT ANTHONY
IPC: A42B3/12
Filed: 1961-05-18
Abstract: 996,619. Protective helmets. STADIUM Ltd. Aug. 20, 1962 [May 18, 1961], No. 18177/61. Heading A3V. A protective helmet, Figs 1 and 2, comprises an outer moulded shell 2 of resinimpregnated fibres and an inner lining 4 of pliable material, such as cork, spaced from the outer shell by spacing members 6, which may be strips of cork secured to the inner surface of the shell to form an X-shape with its arms meeting at the top of the helmet. The lining 4 may be formed by bending an oval piece of cork, having tapered slits 10 around its circumference, in a cup shape. The lining 4 may be held in position by a band 12 of foamed plastic material secured to the shell around its inner periphery and by three looped concussion tapes 14 riveted to the shell and drawn together by a cord 16 and sewn to a stiff strip 18 adjacent the inner surface of the band 12. An annular fabric flap 20 is sewn to the strip 18 and turned upwardly inside the latter to hold a further band of foamed plastic material against the strip 18. The band 12, the strip 18, the annular flap 20 and the said further band constitute a headband. Ear flaps 8 are also sewn to the strip 18.
Patent GB-1065226-A (GB)
Title: Length measuring instrument
IPC: G01B9/02
Filed: 1965-04-29
Abstract: 1,065,226. Measuring length photoelectrically. KEARNEY & TRECKER CORPORATION. April 29, 1965 [June 1, 1964], No. 18186/65, Heading G1A.  In an arrangement for measuring the distance away of a movable reflector (43) Fig. 1 (not shown), light from a source (49) such as a laser, is split into two beams which are ultimately recombined for monitoring in respect of fringes by a photoelectric device, one part having been reflected at the source end for use as a reference and the other part having been reflected by the movable reflector. The pulses detected are applied to a bi-directional counter to indicate the length digitally, and phase differentiating means may be introduced into one of the paths to produce two sub-beams which are 90 degrees out of phase at the point of recombination so that separate signals developed by two monitoring devices can indicate jointly whether the distance is increasing or diminishing. The beam is split by a half silvered layer (57) between two triangular prism elements (55) and the reference beam is totally internally reflected by a layer (66) on the outside of one element which layer serves also to reflect back to the movable reflector a beam from the movable reflector. The reflected beam returned toward the prism from the movable reflector is combined with the reference beam at the half silvered face so that a part of it proceeds with the reference beam to the photo-electric monitor (68). The laser may be a continuous helium neon gas laser and the detector may comprise high resistance silicon units. The movable reflector may be mounted on a carriage driven from a motor through a clutch and a lead screw, and may comprise a trihedral prism, a plane mirror, or a triangular prism. The measurement of distance may be used to determine angular rotation when the movable reflector is mounted on the end of a rotatable arm or the optical arrangement may be built into a telescopic internal feeler device described with reference to Fig.21 (not shown). The sub-beam of different phase may be produced by a transparent layer terminating at the centre of the reflected beam or may comprise a stepped layer with the step at the centre. The movable reflector may be brought into contact with the prism face for calibration purposes.
Patent GB-182788-A (GB)
Title: Improvements in or relating to enamelling metal & other objects
IPC: C23D5/04
Filed: 1922-07-03
Abstract: 182,788. Soissan, L. de RaphÚlis-. July 5, 1921, [Convention date]. Enamelling, vitreous; plates.-To support and fix the enamel powder on metal plates, wires, cooking utensils, &c., the articles are coated with a porous non-carbonizing substance such as asbestos, mica, pumice stone, or infusorial earth, in powder, fibre, or sheet form, and the enamel is painted thereon or may be previously incorporated therewith. The articles are then finally shaped and fired.
Patent GB-459832-A (GB)
Title: Improvements relating to apparatus for securing ships' hatch covers
IPC: B63B19/24
Filed: 1936-07-01
Abstract: 459,832. Hatches. YOUNGER, A. S., 26, Dalkeith Avenue, Dumbreck, Glasgow. July 1, 1936, No. 18223. [Class 113 (i)] A device for securing the locking-bars e laid over the tarpaulin in position comprises a lever f hinged at e or otherwise engaged with the locking-bar and with its tail taking through a hole c<1> in the angle bars c or other abutment on the hatch coaming a. Intermediate its length the lever is provided with a screw g having an adjustable head h which co-operates with a wedge-shaped abutment on the hatch coaming to draw down and secure the locking bar.
Patent GB-562340-A (GB)
Title: Improvements in or relating to thermionic valve circuits
IPC: G01R19/22
Filed: 1942-12-23
Abstract: 562,340. Valve amplifying circuits. STANDARD TELEPHONES & CABLES, Ltd., and EWEN, A. W. Dec. 23, 1942, No. 18228. [Class 40 (v)] [Also in Group XXXVI] A rectifying arrangement associated with a negative feed-back amplifier, as in a measuring system, comprises an amplifier adapted to maintain a constant current in the output load despite impedance variations therein for a given signal input and a load comprising oppositely poled rectifiers connected in parallel and separate means for utilizing the current passing each of the rectifiers, or for utilizing the current passing one only. Fig. 4 shows a two-stage amplifier with a negative feed-back resistance RC and a load comprising a pair of diode rectifiers D1, D2 and an associated meter M, the product of the feed-back resistance and the voltage transfer ratio of the amplifier being large compared with the load impedance. The meter may have a single winding arranged in series with one of the rectifiers, Fig. 2, or have a pair of windings, Fig. 3, so poled as to produce deflection in the same direction. Alternatively, the rectifiers may be of the copper oxide or selenium type. Specification 545,535 is referred to.
Patent GB-1502435-A (GB)
Title: Electrode assembly for an electrolytic cell
IPC: C25B11/02
Filed: 1975-05-01
Abstract: 1502435 Electrolysis electrode assembly OLIN CORP 1 May 1975 [24 June 1974] 18237/75 Heading C7B The assembly (anode or cathode) comprises two spaced parallel (mesh) surfaces 14, 16 and at least two conductive supports 18, 20 between them, at least one support being separately attached to each surface. The supports are mounted adjustably in openings in a support plate 10 and extend perpendicular thereto. A plurality of alternating or opposed pairs of support conductors may be used, in the latter case using conductor-pairs of different diameters whereby to effect electrolyte flow control. The plate 10 may be conductive or not and may be plastics coated or of a passivating material (Ti). A plurality of electrodes may be mounted on a single support. A diaphragm (permselective) may cover the electrode. Chloralkali and oxychlorine compounds are produced from brine.
Patent GB-678169-A (GB)
Title: Improvements relating to machines for slitting and coiling sheet material such as metal
Inventor: PICTON JOHN BURLEY
IPC: B21C47/00
Filed: 1949-07-11
Abstract: 678,169. Winding and reeling. BIGWOOD & SON, Ltd., J. July 11, 1950 [July 11, 1949], No. 18277/49. Class 83 (iv). [Also in Group XVI] In a device for removing coiled strip from a winding drum a carriage is moved to straddle the coiled strip and clamps thereon actuated to prevent unwinding after which the carriage is moved to strip the coil from the drum and the coil is bound with wire and removed from the carriage. A C-shaped carriage 17 on wheels 11 carries three radial fluid cylinders 23 operating rams 31 terminating in pressure shoes 43 subtending an angle of more than 180 degrees. The strip 20 is slit and coiled on a mandrel 16 and the carriage 17 is moved axially to straddle the coil. Actuation of the pressure shoes 43 clamps the coil and the carriage is then moved axially by a pusher to withdraw the coil from the drum to leave it free for dealing with the next coil. The coils are then bound with wire and removed from the carriage. The pressure shoes may be spaced apart to allow of the use of spacing rings on the drum.
Patent GB-1456429-A (GB)
Title: Desulphurising mixtures
IPC: C21C1/02
Filed: 1974-04-26
Abstract: 1456429 Desulphurizing mixtures SUDDEUTSCHE KALKSTICKSTOFF-WERKE AG 26 April 1974 [24 May 1973] 18322/74 Heading C7D  A storage-stable desulphurization mixture based on calcium carbide, preferably 60-90 wt. per cent is produced by grinding the carbide hot from its manufacture in a tube mill at 50-250C flushed with an inert gas (N 2 , flue gas) together with a water-containing material i.e. hydrated lime, colemanite, paiderite, or other compounds containing water of crystallization. The volume of flushing gas is 2-10 times the mill volume. Further additions to vary the slag consistency produced by desulpherization of molten iron, such as carbon, limestone, dolomite, magnesite, or diamide lime may be made. Hydrogen containing additives i.e. organic polymers, polyolefins, polyamides &c. as well as urea, dicyandiamide rulamine may be added to the mixture after cooling to improve the mixture effectiveness. The mixtures must be stored out of contact with atmospheric moisture.
Patent GB-799602-A (GB)
Title: Improvements relating to the measurement of liquid levels in wells
IPC: E21B47/04
Filed: 1953-07-02
Abstract: 799,602. Echo-sounding and distance-measuring apparatus. BRITISH PETROLEUM CO., Ltd., BOOTH, S. E., and WARD, E. H. May 26, 1954 [July 2, 1953], No. 18376/53. Class 118 (2). Apparatus for measuring and recording the level of liquid in a well comprises a resilient diaphragm made, for example, of rubber and secured across a resonant chamber which is adapted to communicate with the well in such manner that when the diaphragm is made to vibrate a low-frequency sound wave is sent down the well, and a sound detector comprising a microphone connected to amplifying and recording means. The main feature of the invention is a generator of low-frequency sound waves, e.g. less than 50 c/s., since higher frequencies are greatly attenuated in wells, e.g. oil wells, especially those containing obstacles such as tubing and insulators. Any conventional amplifier and recording means may be used but the microphone must be sensitive to low frequencies and hot-wire microphone is therefore preferred. This is combined with the generator in the embodiment of Fig. 1, wherein a circular, domed rubber diaphragm 10 is secured over the open end of a cylindrical chamber 12 by means of a beading 11 compressed between ring 14 and flange 15. The chamber 12 is about 8 inches in diameter and 3 inches deep and has a central aperture 17 about 1¢ inches diameter, in the base. This connects with a tube 18 carrying a hot-wire microphone element 23 and having at its lower end an adapter 19 which plugs into a socket in the well head. A cylindrical tube closed at its upper end and having holes in its side wall is welded. to a bush 22 which connects the adapter 19 to the tube 18 and forms a damping filter 21. A wing union 28 provides easy access to the microphone 23. The circuit of a suitable amplifier having filter networks to selectively reduce the top cut-off frequency is disclosed (Figs. 2 and 3, not shown). A push-button switch is provided to materially reduce the gain of the amplifier while the diaphragm 10 is struck by the hand so that the initial signal may be attenuated and the amplifier returned to full gain in time to receive the echo. Typical recorder traces obtained from oil wells and a water well are reproduced in Fig. 4 (not shown). The embodiment shown can only be used on wells producing little or no gas pressure at the surface. For wells producing a high gas pressure a modified construction (Fig. 5, not shown) is used. In this a further chamber is provided above the rubber diaphragm, the latter having a small hole to equalize the quiescent pressures on the two sides. A rod connected to the diaphragm and passing through sealed glands in both chambers has a domed head to serve as a striking means.
Patent GB-679548-A (GB)
Title: Improvements in or relating to illuminant enclosures
IPC: F21S8/04
Filed: 1949-07-13
Abstract: 679,548. Ceiling lighting fittings. ADIE, K. S. July 11, 1950 [July 13, 1949], No. 18440/49. Class 75(iv) In a ceiling lamp comprising a member 3 supporting a translucent member 9 and detachably secured to a back plate 1 fixed to the ceiling, the support member 3 is formed from a single sheet metal blank and has an annular groove 19 embracing the translucent member and comprising two inturned flanges one of which 21 is formed by an inward followed by an outward abutting working of the metal blank. The other flange 25 of the groove is formed whilst the edge of the translucent member is held against the first flange 21. The support member 3 is connected to the back plate 1 by a pin and bayonet slot connection 29 having a spring 31 tending to retain the pin at the closed end of the slot. A lampholder 5 is secured to the back plate.
Patent GB-274279-A (GB)
Title: Improved safety-razor blade sharpener
IPC: B24D15/08
Filed: 1926-07-24
Abstract: 274,279. Sneddon, (nÚe Devlin), T. July 24,1926. Stropping - apparatus. A sharpener for safety razor blades consists of a base 1 carrying a honing ring 2 of oilstone, leather, &c., and a spindle 6 rotatable on a central pin 5 and rotatably carrying a sleeve 10 and a sleeve 9 having thereon a pinion 8, which engages teeth formed on the periphery of a plate 4 supported within the ring 2. Mounted on the sleeves 9, 10 by means of lugs 13<a>, 14a, are the jaws 13, 14 of a blade-holder the lugs being held friction tight on the sleeves by clips 15, and the jaws being opened by projections 13<c>, 14<c>. In operation, the spindle 6 is rotated on the pin 5 by a handle whereby the pinion 8 is rotated, the first movement causing the blade-holder to swing over on the spindle until the blade contacts with the hone; further movement of the handle moves the blade round in contact with the hone, the holder slipping on the sleeves 9, 10. The other side of the edge is treated by reversal of the movement of the handle.
Patent GB-421735-A (GB)
Title: Improvements in and connected with semi-elliptical axle springs of motor-cars and like road vehicles
IPC: B60G11/00
Filed: 1933-06-30
Abstract: 421,735. Axle connections for laminated springs. STARLEY, W. A., Albourne, Effingham Road, Surbiton, Surrey, and TONG, G. W., Appleby, near Scunthorpe, Lincolnshire. June 30, 1933, No. 18573. [Classes 108 (ii) and 108 (iii)] A semi-elliptical axle spring for road vehicles, including trailers, is in two halves, the outer ends of which are rigidly secured to the vehicle chassis while, in order to prevent twisting of the springs on tilting of the axle 13, the inner adjacent ends each carry a peg 16 engaging an aperture 15 in a bracket 14 secured to the axle, the aperture being at right-angles to the axle. Each peg 16 is threaded into a lug 9 having bottom and side abutments 19 for seating the end of the half-spring which is bolted thereto, projections 17, one on each lug, being drawn together by a coupling-bolt 18. Each halfspring comprises superimposed sinuous strips 3, the outer ends of which are formed as shown and bolted to the chassis 7. Fabric or other material may separate the strips along the whole length of the spring or at intervals, e.g. at the portions 22. Fig. 3 shows a modified outer end of spring having a reinforcing stay 23, distance pieces 24, and a supporting member 25.
Patent GB-340976-A (GB)
Title: Improvements relating to gramophone and like sound records
IPC: G11B3/70
Filed: 1929-06-17
Abstract: 340,976. Gramophone &c. records. DIEUX, J., 2, Quai des Celestins, Paris. June 17, 1929, No. 18597. Convention date, March 27. Void [Published under Sect. 91 of the Acts]. [Class 40 (ii).] Printed matter is indelibly applied to the surface of gramophone and like records by means of " a process for direct inking and colouring, in which the printed matter dries quickly and strongly adheres to the surface by molecular attraction." The printed matter, which may relate to the subjectmatter of the record, or may include portraits, advertisements &c., may extend over any part or the whole of the record surface.
Patent GB-313885-A (GB)
Title: Improvements in or relating to the manufacture of artificial filaments and other products from organic derivatives of cellulose
IPC: D01F2/28
Filed: 1929-06-17
Abstract: 313,885. British Celanese, Ltd., (Assignees of Whitehead, W., and Dreyfus, C.). June 16, 1928, [Convention date]. Cellulose esters and ethers, processes for making filaments from. - Artificial filaments, yarns, threads, ribbons, straw, &c. that can be readily wetted and can be woven, knitted &c. without the addition of a lubricant, are obtained by spinning a solution of cellulose, ester or ether containing a glycol or other polyhydric alcohol or a derivative thereof containing one or more alcoholic groups under such conditions that a substantial proportion is retained in the product. The process is applicable to products made by either dry spinning or wet spinning processes. Materials containing these additions can be readily scoured, dyed, &c. As examples of glycols &c. the following are mentioned :- ethylene glycol, diethylene glycol, glycerine, monoacetin, and ethylene glycol monoethylether. The invention is exemplified by a solution of cellulose acetate in a mixture of 1-5 per cent diethylene glycol and 99-95 per cent acetone which is spun in a dry-spinning plant wherein the solvent is evaporated off at a temperature of 55-65‹ C. Specification 312,203 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) includes spinning solutions comprising cellulose ester or ether dissolved in a mixture containing a volatile solvent and a relatively non-volatile, water-soluble alcohol or a relatively non-volatile ester or ether thereof; and includes an example comprising cellulose acetate dissolved in a mixture of acetone and diacetone alcohol. This subject-matter does not appear in the Specification as accepted.
Patent GB-618460-A (GB)
Title: Improvements in or relating to radar aircraft navigational systems
IPC: G01S13/91
Filed: 1946-06-21
Abstract: 618,460. Radio-navigation. PATRIARCHE, V. H. June 21, 1946, No. 18654. [Class 40 (vii)] In order to assist aircraft to land or take off, a runway 1 is outlined by reflectors 2 for short radio waves and at least two further reflectors, 3 and 5, are arranged along an approach path to the runway at such distances from the end of the runway and at such heights that a line passing through them is at an angle not less than the safe approach angle for the runway; the aircraft carries radar equipment including a two-dimensional scanning arrangement and images of the reflectors are displayed on the screen of the equipment in positions simulating the lay-out of reflectors about the runway as viewed from the craft. Preferably, three reflectors 3, 4 and 5 (Fig. 2) are used to determine the approach path 6, the two outer reflectors 4 and 5 being arranged at equal distances on opposite sides of the path so that by maintaining the image of the inner reflector 3 between that of the outer ones 4 and 5 on the screen, the pilot may direct his craft directly at the runway. Approach path markers may be arranged at each end of the runway and responders may be used instead of reflectors as markers.
Patent GB-613629-A (GB)
Title: Improvements in or relating to signalling devices
IPC: G10K1/062
Filed: 1946-06-21
Abstract: 613,629. Electric bells. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and SMITH, S. R. June 21, 1946, No. 18658. [Class 13] An alternating current ringer for use in a telephone set comprises a bell-hammer rigidly carrying a permanent magnet. The hammer 28 is pivoted at 30 to a bridge connecting two bells 32, 33 and carries at about its centre of gravity a magnet 29 arranged laterally between a pair of electromagnets 10, 11, the free ends 20, 22, 21, 23 of the pole-pieces being of reduced section and close to the permanent magnet when in normal position. The windings are so arranged that an alternating current causes the permanent magnet 29 and hammer 28 to vibrate. In a modification, a single electromagnet is used with a plain ferrous metal return, the magnet then assuming a non-symmetrical position. The hammer may be spring-biassed.
Patent GB-1490878-A (GB)
Title: Conveyance systems
IPC: B65G35/08
Filed: 1975-05-05
Abstract: 1490878 Conveyer VIGES SpA 5 May 1975 18670/75 Heading B8A A conveyer comprises rows of dollies 11 advanceable along respective sides of, e.g. a rectangle by means of rams 17, 18 which engage the trailing dolly of a row to advance the leading dolly into a space at the rear of the preceding row. Shock absorbers 23 and brakes 24 are provided. The dollies run on rollers 12 and on balls 16 at the corner of the rectangle.
Patent GB-868575-A (GB)
Title: New thiophosphoric acid esters
Inventor: VEGTER GEERT CASPER
IPC: C07F9/165
Filed: 1959-06-02
Abstract: The invention comprises compounds having the general formula: <FORM:0868575/IV (b)/1> in which R1 and R2 may be the same or different and each represents a hydrocarbon or halohydrocarbon group, R3 is an alkylene chain of two or more carbon atoms, R4 is an alkylene group containing one or two carbon atoms, R5 is an alkyl or chlorinated alkyl group or a substituted or unsubstituted aryl group e.g. a p-nitrophenyl group and X is an oxygen or sulphur atom.  They may be obtained by reacting a dihydrocarbyl (or dihalohydrocarbyl) phosphorothionochloridate with an (acyloxyalkylthio) alkanol where X is to be O or with a corresponding (acyloxyalkylthio) thioalkanol where X is to be a sulphur atom.  The reaction is preferably carried out in the presence of a basic substance e.g. pyridine or lutidine, and in an inert solvent under anhydrous conditions.  Specified solvents are ether, liquid halogenated hydrocarbons, benzene and light petroleum fractions.  Examples are given for the production of compounds of the above formula in which R1 and R2 are ethyl, R3 is -CH2-CH2-, R4 is -CH2-, and R5CO.O- is n-butyryloxy, acetoxy, n-propionyloxy and isobutyryloxy respectively.  The products have insecticidal properties (see Group VI) and are also useful as lubricating oil additives.  Substituted alkanols of the formula H.X.R3SR4O.COR5 used as starting materials may be obtained by reacting a compound of the formula Cl.R4O.CO.R5 with a sodium derivative of the mercapto alkanol or dithioglycol of the formula H.X.R3SH and examples are given for the production of 2-hydroxyethyl thio methyl n-butyrate and the corresonding acetate, n-propionate, and iso-butyrate.ALSO:An insecticidal composition comprises a thiophosphoric acid ester of the formula <FORM:0868575/VI/1> in which R1 and R2 may be the same or different and each represents a hydrocarbon or halohydrocarbon group, R3 is an alkylene chain of 2 or more carbon atoms, R4 is an alkylene group of one or two carbon atoms, R5 is an alkyl or chlorinated alkyl group or an unsubstituted or substituted aryl group, e.g. a p-nitrophenyl group, and X is an oxygen or sulphur atom (see Group IV (b)) and a wetting or dispersing agent or a solid inert diluent.  Specified products are those in which R1 and R2 in the formula are ethyl, R3 is -CH2-CH2-, R4 is -CH2- and R5 CO.O is n-butyryloxy, acetoxy, n-propionyloxy and isobutyryloxy, respectively.