baber/WOPTO huggingface dataset:
Patent GB-358387-A (GB)
Title: Improvements in or relating to anti-vibration devices for vehicles
IPC: B62K25/16
Filed: 1931-01-14
Abstract: 358,387. Cycle spring frames. DRAPER, A. D. and BENTLEY & DRAPER, Ltd., Fenchurch Avenue, London, and WEBB & CO., Ltd., H. C., Tame Road, Witton, Birmingham. Jan. 14, 1931, No. 1260. [Class 136 (iii).] In motor - cycle suspension -systems in which sprung and unsprung portions are connected by links or shackles and in which friction-disc or surface shock absorbers are operated by relative movements of the parts, the shockabsorber includes a friction surface 1 moving with a link 2 and coacting with a second friction element 8 formed with an extension arm 9 engaging spring means 10, 11 attached to the fork 13 whereby the spring means is caused to supplement the action of the main suspension spring. A wing nut 14 presses on a star spring 15 to facilitate adjustment. In a modification, rubber blocks replace the springs 10, 11 and in a further modification, the arm 9 and springs 10, 11 are replaced by radial fins which rotate in a casing and compress rubber blocks. More than two friction surfaces may be used and means may be provided for adjusting the resistance offered by the spring means. The shock absorber may be of the brake-band type.
Patent GB-120154-A (GB)
Title: Improvements in Pocket Fronts for Blouses and other Garments.
Inventor: RADFORD WILLIAM ERNEST
IPC: A41D27/20
Filed: 1918-01-23
Abstract: 120,154. Radford, W. E. Jan. 23, 1918. Pockets. - Pocket fronts for blouses or other garments are made on a twist lace machine, and have a close-mesh band at the top and an openwork part or panel below of the same or a different colour. Fig. 1 shows a series of such fronts connected by lacing threads J. The close-mesh part A forms a band extending across the top of the pocket, and is of the same colour as or a different colour from the lower open mesh part B. A pattern C of gimp threads of the same or a different colour may be superimposed upon it, and buttonholes D made therein. The mesh part has a plain or a fancy border F and a design G in the centre.
Patent GB-873563-A (GB)
Title: Improvements relating to photometric apparatus
IPC: G01N21/47
Filed: 1960-01-13
Abstract: 873,563. Photo-electric measurement of reflectance. COMPAGNIE FRANCAISE THOMSON-HOUSTON. Jan. 13, 1960 [Jan. 13, 1959], No. 1324/60. Class 40(3) Measuring and reference beams of light from a source 1 (an incandescent lamp with a metallic filament) are reflected respectively from a specimen 5 and a standard 6 and impinge alternately on a photo-electric cell through the single aperture 11 of a rotating or otherwise moving shutter 10, the light path from the specimen including an adjustable Goldberg double-wedge assembly 9 and the path from the standard including a similar but preset wedge assembly 13. The electric impulses from the photo-electric cell may be displayed as vertical deflections on a cathode-ray oscilloscope with a horizontal deflection synchronized with the shutter rotation and the wedge assembly 9 adjusted until equal vertical deflections are obtained. The apparatus is stated to be of use in determining the efficiency of domestic washing machines from reflectance measurements made on artificially pre-soiled fabrics. If desired the standard 6 may be dispensed with so that the level of reference light is determined solely by wedge assembly 13. A Goldberg wedge assembly is described with reference to Fig. 2 (not shown) and comprises a first long optical wedge adjustable in a frame to position any desired portion in the light path together with a stationary wedge of opposite inclination. The two wedges are cut from translucent glass. At least one of the wedges is tinted.
Patent GB-679213-A (GB)
Title: Improvements in and relating to the production of cellulose acetate threads
Inventor: CLUNN LESLIE
IPC: C07C51/43
Filed: 1950-01-19
Abstract: An aqueous acetic acid solution of cellulose acetate is extruded into an aqueous bath containing both potassium acetate and acetic acid so as to obtain artificial filaments, and the composition of the bath is maintained substantially constant by continuously or intermittently withdrawing part of the coagulant bath liquor, passing the withdrawn liquor to a heater chamber maintained at a temperature above 297 DEG C. (the melting point of potassium acetate) so that the liquor is converted into a liquid phase consisting mainly of molten potassium acetate and a vapour phase consisting of a mixture of acetic acid and water, and returning the potassium acetate thus separated to the bath.  The temperature of the high-temperature evaporator should preferably not exceed 350 DEG  C.  If desired 5-10 per cent of sodium acetate based on the weight of the <PICT:0679213/IV (a)/1> potassium acetate may be present in the spinning bath liquor and in this case the temperature of the high-temperature evaporator may be as low as 277 DEG  C. owing to the lower melting point of the mixture of potassium and sodium acetates.  Preferably the withdrawn bath liquor is partially evaporated in a low-temperature evaporator at 80-130 DEG C. before it is passed to the high-temperature evaporator.  In an example, a ripened cellulose acetate esterification solution containing aqueous acetic acid as the solvent medium is extruded into a solution containing 15 per cent of acetic acid, 40 per cent of potassium acetate, and 45 per cent of water.  A portion of the coagulant liquor is withdrawn from bath 1 and passed through a preheater 2.  The liquor now at 57 DEG  C. is passed through the low-temperature evaporator 3 at 88 DEG  C. and under a reduced pressure.  The distillate, consisting of acetic acid and water, is passed through a condenser 4 and collected in tank 5.  The concentrated liquor from the evaporator 3 is passed into the high-temperature evaporator 6 maintained at 310 DEG  C. by a heat transfer fluid.  The distillate, consisting of acetic acid and water, is used to heat the evaporator 3 as it passes to storage tank 5.  The solution of acetic acid thus collected may be treated for the recovery of glacial acetic acid. The molten material consisting of potassium acetate with a little acetic acid is fed to mixer 7 where it is dissolved in a portion of the spinning bath liquor.  The mixture at 107 DEG  C. is used to heat the liquor in preheater 2 and it is then fed back to the spinning bath together with an addition of water.  Specifications 281,827, [Class 2 (iii)], and 652,844, are referred to.
Patent GB-1412252-A (GB)
Title: Membranous articles and methods for their manufacture
IPC: B01D67/00
Filed: 1972-01-12
Abstract: 1412252 Semipermeable membranes IMPERIAL CHEMICAL INDUSTRIES Ltd 8 Jan 1973 [12 Jan 1972] 1436/72 Heading B5B [Also in Division C3] Semipermeable membranes are prepared from a polymer of at least ethylenically unsaturated monomer, the membranes having a liquid water permeability coefficient (as defined) of 10<SP>-16</SP> cm.<SP>2</SP> to 10<SP>-9</SP> cm.<SP>2</SP>. The exemplified membrane is made from a copolymer of hydroxyethyl methacrylate and ethylene glycol dimethacrylate and is obtained by casting a solution of the monomers on to a surface so cold that the solution freezes, irradiating it with a mercury vapour lamp and then immersing it in water to remove the solvent.
Patent GB-904399-A (GB)
Title: Hair curling device
IPC: A45D2/06
Filed: 1961-01-16
Abstract: 904,399. Hair-curling appliances. GILLETTE CO. Jan. 16, 1961 [Jan. 28, 1960], No. 1709/61. Class 131. A metal, rubber or plastic device for forming pin curls comprises a base-plate 12, apertured at 16 for passage of a tress of hair and having a centre post 14 around which the tress is wound by a member 30 which consists of an annular flange 34, with a rim 36 and a ring hair-engaging teeth 38, and a hollow handle 32 slidably and rotatably receiving the post, the coiled tress being clamped between the plate and the member 33. Drying apertures 18 and 40 are provided and the handle has friction-reducing ribs 33, the post being hollow to reduce weight. If desired, the coiled tress is retained by a hairpin on the base-plate, the member 30 being removed for use with another tress. In a modification, the base-plate has hair-engaging teeth which lie within the teeth 38 in the closed position of the device.
Patent GB-104005-A (GB)
Title: Improvements in and relating to Railway Vehicles.
Inventor: MALLET ARCADE
IPC: B61D47/00
Filed: 1917-02-06
Abstract: 104,005. Mallet, A. Feb. 8, 1916, [Convention date]. Landing-gangways.-A box for carrying loading and unloading apparatus, more particularly for use in embarking or disembarking troops, animals, or material, is attached to, or combined with, the vehicle underframe. In an existing vehicle, the box is strapped beneath the underframe. In a new vehicle, the longitudinal frame members 1 are formed cenfrally beneath the door 8, of increased depth as shown at 2. with openings to receive the ends 3 of the box 4. The loading-device which is house in the box may be a folding slope or gangway as shown in Fig. 3.
Patent GB-1497764-A (GB)
Title: Furniture buffer
IPC: A47B95/04
Filed: 1976-10-25
Abstract: 1497764 Buffers HOMA CASTORS Ltd 25 Oct 1976 [17 Jan 1976] 01871/76 Heading A4U A buffer for furniture comprises an annular core component 10 mountable upon a support member 26, e.g. a trolley frame, and a wheel 12 rotatably retained upon the core component 10 by interengagement of the wheel in a groove 16 in the core component, the wheel being axially fixed with respect to the core component by a segmented annular rim 20 and a flange 24 on the core component. The wheel has a tyre 14, and the core component 10 is moulded from resilient material whereby the segmented rim 20 can be snapengaged with the wheel 12 and a second segmented rim 22 can be resiliently engaged with the support member 26. The bore in the buffer may be other than cylindrical, e.g. square, rectangular elliptical or triangular, and the outer profile of the wheel and tyre may be other than round. The tyre 14 may be replaced by a part integral with the wheel 12.
Patent GB-1500192-A (GB)
Title: Compression or expansion of audio frequency signals
IPC: H04B1/64
Filed: 1975-01-16
Abstract: 1500192 Companders LICENTIA PATENTVERWALTUNGS GmbH 16 Jan 1975 [26 Jan 1974 9 Feb 1974] 1881/75 Heading H4R In an audio frequency compander system an amplitude compressor, Fig. 1, includes a first gain controlled amplifier 3 in the signal path from 1 to 2, and a second gain controlled amplifier 7, of similar control characteristics to the first amplifier 3, is connected to the output of amplifier 3 and supplies a control voltage generator 5. The control generator has a threshold below which it produces no output and above which it produces an output which controls the gains of amplifiers 3 and 7 to maintain its input substantially at the threshold level, so that above the threshold the output of amplifier 7 is constant, and therefore, the output of amplifier 3 rises at half rate at which the input signal rises, i.e. a 2dB change of input signal gives rise to a 1dB change of output signal. In the complementary expander, Fig. 2, the gain of the main signal path amplifier 8 is controlled to rise with increasing signal level, the control signal amplifier gain falls with increasing input signal level, and the control amplifier derives its input from the input to amplifier 8, the control circuit again providing, above a threshold level, a control voltage to maintain its input constant. As described the gain control amplifiers have their gains controlled by use of dual FET's, one FET in the feedback path of each amplifier. In a modification an additional gain controlled amplifier can be provided in either the main signal or the control signal path to provide a different compression or expansion ratio, Figs. 4, 5 or 6 (not shown). The signal frequency band can be split and different frequency bands subject to individual compression, or expansion by using different control circuits for each frequency band controlling frequency selective negative feedback circuits on a common signal amplifier. The control circuit is formed by a switch 43, Fig. 10, such as a transistor, which is switched on when the signal at the output of the control exceeds the threshold level and causes rapid charging, or discharging, Fig. 11 (not shown), of a capacitor 44 from the power supply U B . The voltage across the capacitor provides the gain control signal which will be maintained at such a value as to keep the control amplifier output signal just exceeding the switching threshold. The switching may comprise a pair of transistors one operated on positive going signal peaks and the other, via an inverter, on negative going signal peaks, Fig. 13 (not shown).
Patent GB-601435-A (GB)
Title: Improvements in or relating to tone heads for use in sound recording or sound reproducing mechanism
IPC: H04R11/08
Filed: 1946-01-19
Abstract: 601,435. Gramophone pick-ups. OSMAN, D. E. Jan. 19, 1946, No. 1888. [Class 40 (iv)] In electrical sound recording or reproducing apparatus the tone head includes an armature having an axial bore to accommodate a stylus and located within a coil, and two pivots each having a hardened point engaging the armature and both lying along a common axis transverse to the axis of the armature and passing through its point of balance, the end of the armature remote from the stylus being located between the poles of a permanent magnet. In the example shown, the armature 27 is held by screw pivots 30 and the coil 33 is held to soft iron pole pieces 22 secured to a magnet 31. A rubber block surrounds the armature to render it self-centering. The former of coil 33 may be of brass and provided with slits which may be filled to varying degrees with solder to adjust its resistance to suppress electrical resonance. The bore in the armature may be D-shaped and the stylus is then of similar cross section.
Patent GB-589499-A (GB)
Title: Rubber-like products
IPC: C08K3/00
Filed: 1945-01-24
Abstract: Rubber-like products are made by heat-curing, with or without pressure, a mixture of an interpolymer of ethylene and a vinyl organic ester which has been hydrolysed at a temperature below 400 DEG  C., sulphur or a material capable of liberating sulphur, a Group II metal oxide and, if desired, a rubber vulcanization accelerator. Pyrolysis and curing may be carried out simultaneously. Interpolymers specified are those with vinyl acetate, propionate, butyrate, acrylate and methacrylate. Pyrolysis, resulting in removal of acyloxy groups, is preferably conducted in an inert gas, e.g. nitrogen, a solvent, e.g. benzene, chlorbenzene or toluene. Vulcanization accelerators specified are 2-mercaptothiazoline, diphenylguanidine, piperidinium pentamethylenethiocarbamate, benzothiazyl disulphide, mercaptobenzothiazole, tetramethylthiuram mono- and disulphides, tetraethylthiuram disulphide, tetramethyl-, tetraethyl-, dipentamethylene-, di-(phenylmethyl) and di-(phenylethyl)-thiuram tetrasulphide.  The thiuram tetrasulphide accelerators liberate sulphur during the curing process.  The metal oxide may be zinc, magnesium, calcium or barium oxides.  Optical additions are fillers, e.g. carbon black, lubricants, e.g. stearic or abietic acid, antioxidants, stabilizers, e.g. benzoyl peroxide and blowing agents.  Specifications 497,643 and 578,584 are referred to.
Patent GB-1522190-A (GB)
Title: Flotation apparatus
IPC: B03D1/14
Filed: 1975-12-29
Abstract: 1522190 Flotation apparatus SAINT-GOBAIN TECHNIQUES NOUVELLES 29 Dec 1975 [30 Dec 1974] 01892/78 Divided out of 1522189 Heading C1C Flotation apparatus for removing suspended pollutants from liquids (e.g. surface water) comprises a vessel for containing a volume of liquid having an annular upper liquid surface, the vessel being provided with a plurality of orifices for admission of liquid, means for introducing or for producing bubbles of gas in the liquid and a raking device for removing floating solid matter comprising an arm mounted to rotate about the axis of symmetry of said annular surface and drivable in rotation about that axis to sweep the surface, the arm being provided with means for radially removing said solid matter from and over the surface, the apparatus including an overflow, preceded by a baffle, through which overflow the liquid passes prior to its removal from the vessel.
Patent GB-359823-A (GB)
Title: Improved manufacture of gas cell fabric
IPC: D06M15/11
Filed: 1931-01-20
Abstract: Polyglycerol is prepared by heating glycerol, with or without a catalyst such as sodium hydroxide, at 280 DEG  C. for a period of 30 minutes.  The resulting material is then distilled by dry heat until the temperature reaches 300 DEG  C.
Patent GB-213709-A (GB)
Title: Improvements relating to paper and paper making
IPC: D06N7/00
Filed: 1923-01-22
Abstract: 213,709. Jackson, P. T. Jan. 22, 1923. Compound paper; strengthening paper with fibres. - In the manufacture of paper reinforced with filaments of unspun long fibres such as flax, sisal, ramie, and similar long staple fibres, the filaments are secured to the paper by adhesive while under lengthwise tension. The filaments, scutched and freed from woody matter, are fed by rolls 2, either direct or by an apron 7 to gripping rolls 15, 9, and from these to a drawing or hackling apron comprising slats or rods 17 connected at their ends to chains 18. The slats 17 are provided with pins. The chains are driven at a slightly greater speed than that of the filament, so that the filaments are under tension and drawn into parallel relation. In this condition, they pass between rolls 20, 21, which rotate at a slightly greater speed, thus maintaining the tension, and the filaments are delivered to a paper web c coated at 27 with waterproof adhesive. The rolls 20 may be heated. A cooling blast of air may be projected on to the web by means of a pipe 31. A second paper web may be applied, the filaments being thus enclosed between two paper webs.
Patent GB-433751-A (GB)
Title: Method of processing vegetable fibrous materials, using ammoniacal cupric oxide solution
IPC: D06M11/62
Filed: 1935-01-21
Abstract: Vegetable fibrous material which still retains its natural incrustations is treated with an ammoniacal cupric oxide solution, and then mercerized with caustic lye whilst stretched.  The ammoniacal cupric oxide solution preferably contains free alkali and wetting out agents such as sulpholeate.  In an example, raw cotton voile fabric after singeing is passed through a solution containing 18 gms. of copper as cupric oxide, 10 gms. caustic soda and 3 gms. of sulpholeate per litre, followed immediately by mercerizing under tension with caustic soda, the fabric finally being bleached. Specifications 276,352, [Class 15 (ii)], 301,392, [Class 42 (i)], and 403,255 are referred to.
Patent GB-606155-A (GB)
Title: Improvements in or relating to articles for assisting disabled or partially disabledpersons to dress and undress
IPC: A47G25/82
Filed: 1946-01-21
Abstract: 606,155. Appliances for facilitating putting on clothing. LIKEMAN, W.C. Jan. 21. 1946. No. 1981. [Classes 17(iii) and 141] A device oi this kind comprises a long stem in two or more sections, b, d, adapted to be joined together, as by screwing, one of the sections b having integrally formed with or rigidly attached at one end a rigid member a which may engage with an article of wearing apparel such as a shoe to apply an upward pull or a lateral easing force. The opposite end of the stem has a gripping handle axially in' line with the stem or bent over into loop form. The rigid member a may take the form of a shoe horn, as shown, or a hook for engaging socks. A set of devices for use by a disabled person may be accommodated in a common case.
Patent GB-1205732-A (GB)
Title: Ship's steering device
IPC: B63H25/46
Filed: 1969-01-13
Abstract: 1,205,732. Bow thrusters. J. M. VOITH G.m.b.H. 13 Jan., 1969 [15 Jan., 1968], No. 1991/69. Heading B7V. A bow steering device comprises a duct 5 extending through the fore part of a bow bulge 2 and forking to the sides of the bulge, propulsion means 6 being positioned in the duct forward of the fork. The propulsion means 6 is supported by a spider 7 and by the hull 4 and is driven by motor 9. Rotary closure valves 10, 11 are provided in the branch ducts 5a, 5b. The bulge may be mounted as a unit on the hull 4.
Patent GB-392287-A (GB)
Title: A sleeve joint for tubes and pipes
IPC: F16L21/04
Filed: 1932-01-22
Abstract: 392,287. Pipe joints. JOHNSON, P. G., 41, South View, Letchworth, Hertfordshire. Jan. 22, 1932, No. 2003. [Class 99 (i).] A central sleeve a, for a joint for pipes &c. in which packing elements e are clamped between the ends of the sleeve and flanged end rings 3 by bolts d passing through the rings, is formed from a rolled metal strip bent or rolled to circular form and having the abutting ends thereof welded together. The flanged end rings 3 may be formed similarly or be castings and the packing elements, which hold the sleeve out of contact with the pipes, may be reinforced by metal or hard rubber cornerings. If a recessed packing element as shown in Fig. IX is used, the joint becomes a fluid sealed one. A rib on the sleeve, which projects between the pipes, may be integral with the sleeve or be formed by a series of flat headed rivets.
Patent GB-555222-A (GB)
Title: Improvements relating to lids and bottoms of containers capable of being carried in the hand
IPC: B65D6/02
Filed: 1942-02-14
Abstract: 555,222 Portable containers. CLOTWORTHY, H. R. Feb. 14, 1942, No. 2006. [Class 18] A container 1 for rivets or the like is constructed of non-metallic material, or of metal formed without joints by pressing, or from a shaped metal sheet with edges riveted, welded or otherwise secured together and is provided with a lid consituted by two leaves 2, 2a biassed towards the horizontal position by springs 3, the free edges 2d, 2c being rolled to facilitate insertion of the hand; and stops 6 limiting the upward movement of the leaves. A false bottom 5 is shaped as shown to direct the contents towards the middle to facilitate removal.
Patent GB-937950-A (GB)
Title: Improvements in or relating to shut-off valves
IPC: F16K7/12
Filed: 1960-01-20
Abstract: 937,950. Valves. H. SCHULTE-MATTLER, and F. SCHMITZ, [trading as HOCHDRUCKDICHLUNGS - FABRIK SCHMITZ & SCHULTE]. Jan. 20, 1960, No. 2159/60. Class 135. A valve comprises a housing having a flow passage 31 transverse to a spindle 23. The spindle 23 carries a movable valve member comprising a closing member 25 which is covered by a diaphragm 27 which also seals the spindle from the flow path. The valve member is tapered to engage tapered sides 29 on the valve housing. The diaphragm is provided with enlargements 28 to provide a surface 28a parallel to the spindle such that on opening and closing the valve the surface is adjacent the edge of the tapered sides 29 to prevent tilting of the valve member. In a modification, the enlargements are formed on the closing member 25 and the valve member is of hexagonal shape in cross-section.