baber/WOPTO huggingface dataset:
Patent GB-491441-A (GB)
Title: Improvements in the manufacture of mixed ethers
Filed: 1937-02-27
Abstract: Mixed ethers are produced by heating an alcohol with water and sulphuric, phosphoric, arsenic, boric, or hydrochloric acid, and then slowly adding a mixture of this alcohol with another alcohol, the ether formed being distilled off and fractionated, any alcohol being returned to the reaction vessel.  The invention <PICT:0491441/IV/1> is described with reference to the use of sulphuric acid; the strength of the acid should be low when tertiary alkyl groups are present, for instance less than 40 per cent for mixed tertiary butyl ethers, while for ethers whose most reactive group is a secondary alkyl radicle the strength should be about 60 per cent, and for ethers containing only normal alkyl groups 80 per cent, all these strengths being for atmospheric pressure at boiling temperatures but stronger acids may be used at lower temperatures and weaker acids at higher pressures and temperatures.  For the production of tertiary butyl methyl ether there is charged into a reaction vessel 72 methyl alcohol, water, and sulphuric acid which is heated to 76 DEG  C. and a mixture of methyl and tertiary butyl alcohols is added slowly, the vapours being led to a packed fractionating column 77 above a still 78 from which alcohol and water are returned to the reaction vessel 72.  The ether is condensed at 84 and collects in a chamber 85 from which some is returned as reflux to the column 77.  The composition of initial charges, proportions of added alcohols, and temperatures, yields &c. for the production of tertiary butyl methyl and tertiary butyl ethyl ethers are stated, phosphoric acid being used in the first case.  The Specification as open to inspection under Sect. 91 includes particulars as above for the production of many other mixed ethers including normal, secondary and tertiary radicles.  In a number of these the acid used is 66 B<\>ae. sulphuric acid.  This subject-matter does not appear in the Specification as accepted.
Patent GB-657064-A (GB)
Title: Improvements in or relating to surgical trusses
IPC: A61F5/24
Filed: 1948-09-01
Abstract: In a truss of the type comprising a C-shaped spring band, having a pad at one end and an enlargement at the other end to engage the wearer's back, the band is made of flat strip and the p  enlargement is formed by a loop made by bending the band about an axis substantially perpendicular to the plane of the flat sides. Preferably the loop encircles the sciatic nerve and the band is covered with a suitable soft substance such as leather or rubber. A double truss may be formed by fitting two such trusses and joining their respective loops by a strap.  Specifications 657,066 and 657,067 are referred to.  Reference has been directed by the Comptroller to Specification 344,002.
Patent GB-158819-A (GB)
Title: Improvements in or relating to pistons for rotary compressors or engines
IPC: F02F3/00
Filed: 1919-11-05
Abstract: 158,819. Maina, J. Nov. 5, 1919. Pistons; guiding-means within cylinder; cooling.- In a trunk piston for a revolving-cylinder engine or compressor, a roller f is mounted on a pin d, which is secured in lugs on the piston by screws. The piston is formed with guiding-slots a to receive projections on the cylinder, and may be formed with cooling-ribs j.
Patent GB-961899-A (GB)
Title: Plasticised compositions
IPC: C08L27/06
Filed: 1962-06-15
Abstract: Vinyl chloride polymers are plasticized by hydroxypolyesters of sebacic acid and 1,4-butane-diol or 1,6-hexanediol which polyesters are solid at ambient temperatures and have mean molecular weights over 20,000.  Other plasticizers, stabilizers, fillers, lubricants and dyestuffs may also be incorporated, and the compositions used for making petrol hoses, packaging tubes and films, and laminates. Examples describe the compounding of compositions comprising polyvinyl chloride, barium and cadmium stearates, trinonylphenyl phosphite and stearic acid and (1) hydroxypoly 1,6-hexane diol sebacate of molecular weight 30,000 to 35,000; (2) hydroxypoly 1,4-butanediol sebacate of molecular weight 30,000; and (3) hydroxypoly 1,6-hexanediol sebacate of molecular weight 80,000.
Patent GB-638210-A (GB)
Title: Improved magnetic materials and devices
IPC: C22C19/03
Filed: 1947-08-22
Abstract: A method of producing high permeability magnetic material comprises melting together under non - oxidizing conditions the ingredients containing Ni 75-85 per cent, Mo 2-7 per cent, a small percentage, e.g. up to 1 per cent, of Mn, if desired, to improve the workability, the remainder being iron and incidental impurities containing not more than 0.2 per cent of silicon by weight of the alloy, heat-treating a solid body of this alloy in hydrogen at a temperature above 1100 DEG C but below its melting point, and finally maintaining the alloy within a temperature range of 600-300 DEG C for a period of time sufficient to develop the required magnetic properties, e.g. by cooling through this range at a uniform rate of 2 DEG C per minute. The alloy may, alternatively, be maintained at a temperature within the said range, e.g. 480 DEG C for a time period sufficient to develop the required properties and cooled rapidly to room temperature.  The alloy may be made by melting the ingredients in air under reduced pressure or in the presence of a non-oxidizing gas such as hydrogen, nitrogen or helium so that the initial partial pressure of oxygen does not exceed 2 1/2 inches of mercury.  Prior to heat treatment the alloy may be formed into tape, an insulating coating being applied to the tape which is then wound into a coil.
Patent GB-1107729-A (GB)
Title: Improved cap for closing the filling pipe of a radiator or like liquid container
IPC: F01P11/02
Filed: 1965-06-01
Abstract: 1,107,729. Radiator closures. SOC. ANON. DES USINES CHAUSSON. 1 June, 1965 [11 June, 1964], No. 23410/65. Heading B8T. [Also in Division F2] An over-pessure and under-pressure valve closure cap for a radiator comprises a plastics cover 1 having a peripheral flange 1a from which locking fingers 10, 11 extend inwardly, the lower face of the cover having a surface resting on the upper rim of a radiator filling tube 2 and an annular resilient lip 34 engaging the interior of the tube, a boss 20 supporting a double valve 23 forced against a button 21 by a spring 27. Diametrically opposed finger tabs 4, 5 are formed integrally with the cover 1 which is preferably a moulded superpolyamide. Notches 13, and stops are located on the edge 12 of the filling tube 2 for engagement with the locking fingers 10, 11 so that the cover 1 may be secured in position. The valve 23 has a radially extending slot which enables the valve to be assembled over the button 21. An edge 30a of a synthetic rubber lining 30 fits into-an annular groove 29 in the valve 23 which may also be made of superpolyamide. If an under-pressure exists in the radiator, the lining 30 is deflected downwards and a boss portion 31 of the lining no longer seals a hole 32 which connects with the radiator through holes 33. An over-pressure in the radiator causes the lining 30 to be lifted from its seat 2a on the filling tube 2 and the pressure is vented through an overflow pipe 36. A rounded portion 34a of the lip 34 remains in contact with the wall of the filling tube 2 when the cover 1 is removed until the lining 30 has been withrawn from the seat 2a, thereby ensuring that any fluid under pressure in the radiator is vented through the overflow pipe 36 and not up the filling tube towards the faces of the operator.
Patent GB-697622-A (GB)
Title: Improvements in or relating to garment supporting means
IPC: A41F9/02
Filed: 1950-09-25
Abstract: 697,622. Garment waistbands. WILSON, J. K. Aug. 27, 1951 [Sept. 25, 1950], No. 23437/50. Class 141. Waistband supporting means of the type comprising a strap or straps extending within the waistband from a point near the centre of the back around opposite sides and comprising inextensible terminal sections and elastic intermediate sections is characterised in that they are connected to the waistband at the back thereof so as to permit negligible circumferential movement and the terminal sections are so connected at each side of the front as to permit substantial circumferential movement and are connectable with each other. As shown, the means comprises a belt having inelastic sections F, L and elastic sections J. Buttons D and transverse buttonholes G anchor the section F to the waistband whilst buttons E and elongated slots O permit circumferential movement of the section L. The belt is fastened by a hook M and loop N. In an alternate construction, the belt is formed in two parts, the central section F being replaced by a buttonholed tab secured to each part.
Patent GB-160740-A (GB)
Title: Improvements in presses
IPC: B30B15/00
Filed: 1920-08-11
Abstract: 160,740. Schull, L. March 15, 1920, [Convention date]. Addition to 147,090. Metal-working presses.-Relates to eccentricactuated presses having stroke adjusting means of the character described in the parent Specification, and consists in raising and lowering the table, or adjusting the position of the ram, by a fast-pitched screw, and in providing means for locking the screw or its nut during the working stroke. In one arrangement the screw is rotated to adjust the position of the press head 33, Fig. 3, and is rotated by worm gear actuated by a hand-wheel 39, and is provided with a conical head 40 bearing on a conical surface in the head 33. In a modification the screw is applied to the bed block of the press, and the wormwheel that rotates the screw has a conical surface engaging a corresponding surface formed in the framing below the bed block. In a further modification the press head is in two parts similarly to the construction shown in Fig. 3, but the upper part is recessed to receive the nut and its conical bearing surface, and the screw is rigidly attached to the lower part. The nut is formed with a worm-wheel for actuation by a shaft located between the two parts of the head and carrying a hand-wheel. The Specification as open to inspection under Sect. 91 (3) (a.) described also a press in which the table is raised and lowered by a fast-pitched screw secured to it and passing through a toothed nut 6, Fig. 1 (Cancelled), which is rotated by a rack 9 actuated by a hand-wheel 10. The nut is provided with a large conical surface bearing on a conical surface 7 on the standard. The friction between the surfaces prevents the nut from rotating when the pressure of the ram 3 is borne by the table. An extension 11 of the screw is provided with collars 12, 13 to limit the movements of the table. In further modifications, the bearing surfaces are not conical, and mechanical power is substituted for the hand-actuation of the screw or nut. This subject-matter does not appear in the Specification as accepted.
Patent GB-316977-A (GB)
Title: Improvements in hauling or towing devices for vehicles and the like
IPC: B60D1/18
Filed: 1929-08-01
Abstract: 316,977. Henry, E. A. Aug. 7, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Couplings for tractors.-A tow rope 9 is kept taut by means of a grooved disc 5 having a hub 4 upon which a spiral spring 6 is secured. The disc is housed in a casing 1 which is mounted adjustably on one of the vehicles. Attachment may be by means of threaded rods carrying nuts, passing through holes in an annular plate and threaded into holes in a ring 17 attached to the casing 1, some framework part being gripped between the plate and ring. The cable-end which may be secured to the drum by welding, riveting or wedging may be housed in a spiral shaped groove. A spring and stirrup form the means of attachment of the other end of the rope.
Patent GB-1377600-A (GB)
Title: Movable platform arrangements
IPC: G03B27/56
Filed: 1973-05-18
Abstract: 1377600 Projection printing BERTHOLD FOTOTYPE GmbH 18 May 1973 [19 May 1972] 23730/73 Heading G2A A platform 1 for supporting photo-sensitive material and movable in first and second mutually perpendicular directions is capable of being driven in the first direction by friction wheels 9 and 10 which are part of a drive assembly capable of being driven in the second direction. Platform 1 comprises a tray 2 and base-plate 3 slideable in the first direction on a drive assembly plate 4 slideable in the second direction on a guide bar 27 of a stationary guide member 26. Drive assembly plate 4 has a guide bar 5, Fig. 1, situated in a groove 6 in platform base-plate 3 and slide blocks 22 and 23, Fig. 2, connected by a bolt 28 slideable in a longitudinal slot in stationary guide member 26. Friction wheels 9 and 10 (in driving contact with the lower surface of base-plate 3) are driven by an inner shaft 13 and the drive assembly is driven by an outer hollow externally threaded shaft 14 (capable of rotary but not longitudinal movement with respect to the assembly) mating with a nut 15 connected to a stationary frame member 16.
Patent GB-457061-A (GB)
Title: Improvements in or relating to trowels and the like hand tools
IPC: E04F21/165
Filed: 1935-08-24
Abstract: 457,061. Wall-poiating tools. BROWN, C. P., and BROWN, jun., C. P., 34, Brazenose Road, Bootle, Liverpool. Aug. 24, 1935, No. 23745. [Class 61 (ii)] A wall-pointing tool comprises a metal strip a curved in cross section to provide a channel or groove b throughout its length and terminating in an offset portion c fitted with a handle d ; the forward end may be rounded at a<1>.
Patent GB-223238-A (GB)
Title: Improvements in or relating to turnbuckles or strainers for wire and other tension members
IPC: F16G11/12
Filed: 1924-10-08
Abstract: 223,238. Streit, A. P. June 3, 1924, [Convention date]. No Patent granted (Scaling fee not paid). Wire strainers.-A turntable for aeroplane or other wires or tension members is provided with means for preventing accidental loosening, comprising a rigid yoke having polygonal guiding surfaces for the passage of similarly shaped sliding members, to the ends of which are connected the wires to be strained. In the form shown in Fig. 2 yokes d are provided with spring-pressed pins i engaging recesses b<11> in the head of the oppositely threaded members of the turnbuckle b. The screws work in sliders e which are polygonally shaped on the exterior tc coact with similarly shaped guides in the yoke. In the construction shown in Fig. 3, the yoke is replaced by a stout wire A which is bent at its ends B to polygonal shape, the centre portion of the wire engaging in the recesses of the milled head E of the turnbuckle.
Patent GB-1334755-A (GB)
Title: Substituted benzimidazoles
IPC: C07D235/32
Filed: 1971-04-19
Abstract: 1334755 Benzimidazole derivatives BA. DISCHE ANILIN- & SODA-FABRIK AG 19 April 1971 [14 March 1970] 23865/71 Heading C2C Novel benzimidazole derivatives of the formula wherein R is a (C 1 -C 6 ) alkyl radical optionally substituted by chlorine, or an allyl, methallyl or benzyl radical, and R<SP>1</SP> is a furfurylthioalkyl, phenylthioalkyl, benzylthioalkyl radical or an alkylthioalkyl radical which may optionally be unsaturated and/or optionally substituted by chlorine or hydroxyl, are prepared by reacting a compound of the formula with either (a) an isocyanate of the formula R<SP>1</SP>.NCO or (b) a urethane of the formula R<SP>2</SP>OCONHR<SP>1</SP> wherein R<SP>2</SP> is the radical of a hydroxyl compound suitable for urethane formation. The novel compounds may also be prepared by reacting a compound of the formula with an amine of the formula R<SP>1</SP>.NH 2  in the presence of a compound capable of binding hydrogen chloride. The novel compounds possess fungicidal activity.
Patent GB-249031-A (GB)
Title: Improvements in and relating to metal frames for windows, doors and other openings
IPC: E06B3/34
Filed: 1925-09-24
Abstract: 249,031. Stephens, A. J., (Establecimientos Kl÷ckner, Soc. Anon.). Sept. 24, 1925. Window frames; door jambs. - The supporting flanges 3, 4 of the metal frames of windows, doors, &c. are made of such depth that the web and hinge 5 are clear of the plaster when the flanges are fixed in the wall opening and the flanges contact with the brickwork 7. The depth of the flanges may be ircreased to leave space for the guides of window-operating devices and additional wall covering.
Patent GB-1344936-A (GB)
Title: Process for the proeduction of pad dyeings
IPC: D06P1/92
Filed: 1971-04-19
Abstract: 1344936 Solvent dyeing SANDOZ Ltd 19 April 1971 [2 Feb 1970 30 April 1970] 23946/ 71 Heading D1B Pad dyeings are produced on woven, non- woven and knitted fabrics of hydrophobic synthetic or semi-synthetic organic fibres of high molecular weight, e.g. polyamides and polyesters, by padding and then fixing on the substrate dispersions of organic dyestuffs prepared by grinding the organic dyestuff with alkyd resins and liquid organic compounds. Preferred dyestuffs include disperse and 2:1 chromium or cobalt complexes of azo dyes; anthraquinones and ion-metallised azo dyes. The liquid organic compounds includes hydrocarbons, halogenated hydrocarbons e.g. perchloroethylene and alcohols. The dispersions may also contain a thickener e.g. ethyl cellulose or pyrogenic finely divided silicic acid; an acid amide with 1 to 3 carbon atoms or phosphoric acid tri-(dimethylamide); a calcium alkarylsulphonate or water-soluble adduct of ethylene oxide with an optionally unsaturated fatty alcohol or a mono- or di-alkyl phenol. Fixation may be effected by steam, solvent vapour or dry air at 100‹-230‹C.
Patent GB-461755-A (GB)
Title: Improvements in or relating to regenerative control systems for electric traction motors
IPC: H02P3/16
Filed: 1935-08-27
Abstract: 461,755. Control of D.C. motors. GENERAL ELECTRIC CO., Ltd., and COLLETT, E. P. Aug. 27, 1935, No. 23982. [Class 38 (iii)] Regenerative braking.-A braking'controller effects regenerative braking of a traction motor, and when moved beyond the full regenerative braking position initiates mechanical braking, voltage and current relays, associated with the motor armature circuit, being provided to operate when the regenerated current or voltage is excessive to effect application of the mechanical brakes until the voltage or current is limited to a safe value. Upon operation of a brake pedal 4 to effect regenerative braking, the coil 1 of a voltage relay 2 is connected across the motor armature 3, and the coil 5 of a current relay 6 is connected in series with the molar armature. The contacts 7, 8 of these relays are connected in parallel, and in series with the coil of an electromagnet 9, the circuit including contacts closed when the controller is in a regenerative braking position. When either relay operates, the electromagnet 9 is energized to operate an air valve 17 to an extent determined by an adjustable stop 12, the mechanical brakes being partially applied. The end portion of the plunger of the electromagnet 9 passes through a hole in a lever 11 connected with the valve 17, and has an enlarged head 16. By depressing the pedal 4 beyond the full regenerative position the lever 11 is engaged by a projection 14 and the valve 16 operated to apply the mechanical brakes. Specification 417,502 is referred to.
Patent GB-779773-A (GB)
Title: A device for the spinning, twisting or doubling of textile fibres
IPC: D01H7/78
Filed: 1955-08-19
Abstract: 779,773. Devices for spinning textile fibres. PUJOL, C. Aug. 19, 1955 [Aug. 20, 1954], No. 23999/55. Class 120 (2). A device for spinning textile fibres comprises a container fitted with a vertical shaft which is mounted for rotation about its longitudinal axis, the inside walls of the container being of curved generatrix constituting a surface of revolution which gradually increases in diameter from its upper part which forms a continuation of an axial channel in the shaft, until it reaches the bottom of the container, where its diameter is a maximum, a streamline, central, vertical stem inside the container and extending from the bottom of the container, so that the upper end of the stem is opposite the lower mouth of the above mentioned channel, and a series of radial openings for the outlet of air which enters the container through the upper axial channel provided in the lower part of the lateral walls of the container. In the arrangement shown the container 10 is fixed to a vertical shaft 17 which has an axial channel 12 for the passage of textile material. Inside the container is a vertical stem 14 which rises from the bottom 13 and whose upper end 14<SP>1</SP> is disposed opposite the bell mouth opening 12<SP>1</SP> of the channel 12. The shaft and the container are mounted for rotation in bearings 20, 21 and 22 and are driven by an electric motor mounted around the shaft 17. In the lower part of the peripheral wall of the container is a series of radial openings 15<SP>1</SP> for the escape of air which enters the container 10 through the axial passage 12. It is stated that textile material is introduced by the suction effect generated by the air expelled by centrifugal force through the radial openings 151 and that the material falls in spirals of ever increasing diameter within the container 10, adhering by centrifugal force to the walls thereof and falling progressively until it reaches the lower part thereof. The extraction of the material is made through the same channel 12. In a second embodiment the shaft and container are driven by an air turbine wheel.
Patent GB-995084-A (GB)
Title: Improvements in or relating to rotary pumps
IPC: F04C23/00
Filed: 1960-07-09
Abstract: 995,084. Rotary exhausters. N. G. N. Ltd., and BRYMNER R. June 30, 1961 [July 9, 1960], No. 24027/60. Heading F1F. A two-stage vacuum pump comprises coaxial cylindrical casings 12, 15 each containing a piston 39 mounted on an eccentric 40 rotated by a common drive shaft 11 and a vane 44 sliding in a slot in the casing and hinged to the piston. The pistons of the two stages are 180 degrees out of phase, and the two vanes lie in the same plane and are inclined from the vertical. The transfer plate 18 which separates the two stages is formed with two oblique passages 52, 53 which connect the outlet side of the first stage (in the casing 12) to the inlet side of the second stage. The outlet from the second stage comprises several openings 46 arranged in the same longitudinal plane, covered by a sheet 49 of synthetic rubber formed with a split which serves as a non-return valve. The pump is immersed in an oil bath, and is lubricated by oil leaking into the second stage by way of the vane groove 43. The vane groove of the first stage is covered to prevent such leakage. A small amount of air is allowed to enter the second stage on the discharge side by passages 62. The pump may have more than two stages, adjacent stages being separated by transfer plates 18.
Patent GB-736652-A (GB)
Title: Improvements in and relating to buoys
IPC: B63B22/04
Filed: 1953-08-31
Abstract: 736,652. Moorings. WICKS, W., and WICKS, R. J. June 15, 1954 [Aug. 31, 1953], No. 24037/53. Class 113 (1). A buoy a is so secured at three or more points to the sea bed and at a vertical distance above the bed by chains e as to be, at all levels of the tide, partly submerged to a greater extent than if floating naturally. Bridle chains e<SP>1</SP> extend between the top of the buoy and the chains e secured to the base b of the buoy, and the electric power to operate a light and/or an audible warning device on the buoy is supplied from ashore by a cable i.