baber/WOPTO huggingface dataset:
Patent GB-565281-A (GB)
Title: Improvements relating to lifting jacks
IPC: B66F13/00
Filed: 1943-02-23
Abstract: 565,281. Jacks. ROTHERY, J. S. Feb. 23, 1943, No. 2958. [Class 78 (iii)] A lifting jack comprises oppositely disposed legs 6 located co-planar with the axis of the body 1 of the jack and two legs 7, 8 arranged one on each side of the plane containing the legs 6. All the legs are removably pivoted to the body 1 at the points 9 of fins 3, and are coupled thereto at the bottom by removable links 11. Each leg is fitted with a ball-jointed foot 10, which can adapt itself to irregular ground and can fold on the leg when the latter is brought up to the body 1 for storage. The legs 7, 8 are furnished with screw and nut adjustment at 21, 22, and the leg 8 can further be telescoped into itself to permit of folding against the body 1 without removal of the link 11. A pin 20 holds the leg in extended position and a bolt 29 retains it against the body when folded thereto. Other pivot holes 5 are provided in the upper fins 3 to permit of the jack body 1 being supported at a higher level, an extension pillar being provided to take under the body and provide the lower pivot holes 12 necessary for the links 11. The fins 3 for the leg 8 may be made removable. The support is particularly applicable to hydraulic jacks, the release valve of which is shown at 27.
Patent GB-310106-A (GB)
Title: Improvements in or relating to apparatus for playing games
IPC: A63F7/00
Filed: 1928-01-31
Abstract: 310,106. Jaggar, H. Jan. 31, 1928. Table games.-An apparatus for playing games consists of rotary discs, wheels or drums which have their motions temporarily arrested by obstructions manipulated so as to come into their paths. A disc with peripheral projections 2 and situated near an inclined platform 8 is mounted freely on a shaft 3 between collars 4 secured to the shaft. A spring-pressed ball 6 in a recess in the hub of the wheel engages a depression in one of the collars, thus allowing the shaft to continue its rotation when the wheel is arrested by a ball 10 in a runway 9 in the adjacent portions 8x of the platform 8. The platform is hinged to permit the ball 10 or other obstruction to be removed from the path of the disc. Several wheels may be mounted on one shaft, and the openings between the projections may be suitably marked for scoring purposes. Reference has been directed by the Comptroller to Specifications 9056/89, 5316/90, 24898/93, 12851/01, 258,415, 272,707, 273,426, 277,145, 290,794 and 293,509.
Patent GB-977684-A (GB)
Title: Centrifugal thickener for paper pulp
IPC: D21D5/02
Filed: 1963-01-24
Abstract: 977,684. Centrifugal strainer separators; de-liquefying presses. CANADIAN INGERSOLLRAND CO. Ltd. Jan. 24, 1963 [Jan. 24, 1962], No. 2995/63. Heading B1D. A centrifugal strainer separator for dewatering dilute paper stock has co-rotating pressure rollers 15, 16 and a counter-rotating stripping roller 19 inside the drum. Washing sprays 23, 24 may be provided. A stock inlet 11, Fig. 4, communicates with a distributer 12, Figs. 3 and 4, ending in an opening 13, Fig. 3, extending the full length of the drum. A conveyer 21 discharges residue at 10. In a second embodiment the stock is fed to the inner (closed) end only of the drum, and provision is made for re-feeding partially-dewatered material to the drum several times. Also, provision is made for maintaining the outside of the drum clean. Specification 977,685 is referred to.
Patent GB-454532-A (GB)
Title: Improvements in or relating to pianofortes
IPC: G10C1/00
Filed: 1936-01-31
Abstract: 454,532. Pianofortes. MORLEY & CO., Ltd., R., and MORLEY, F. D., 123, High Street, Lewisham, London. Jan. 31, 1936, No. 3005. [Class 88 (ii)] A pianoforte having as usual two or more simultaneously struck strings per note arranged in a plane parallel to the soundboard has the soundboard bridge arranged at the striking end of the strings. As shown for an ordinary vertical strung instrument in Fig. 1, the soundboard bridge a is continuous, substantially rectilinear, and substantially parallel to the strike line. The strings pass over a rigid bridge or bridges f, integral with or secured to the iron frame, direct to the hitch-pins. The bridge or bridges f may be uniformly curved, or stepped to make the strings of each note of the same length. The soundboard is carried up under the wrest-plank. Fig. 5 shows an overstrung arrangement intended for use with an action below the level of the keyboard.
Patent GB-659178-A (GB)
Title: Improvements in the manufacture of pre-stressed, reinforced concrete railway sleepers, beams and other articles
Inventor: W JOHN HEYWOOD LUDLO
IPC: B28B11/24
Filed: 1949-02-04
Abstract: 659,178. Moulds for pre-stressed reinforced concrete sleepers &c. METROPOLITANVICKERS ELECTRICAL CO., Ltd. Feb. 4, 1949, No. 3166. [Class 87 (ii)] A metallic mould for use in a method involving the passage of electric current through the reinforcing wires (the wire being thereby heated to cure the concrete) comprises two or more trough-like sections 1, 2, 3 which are electrically insulated from each other and of which at least one is insulated also from earth. The sections are secured together by bolts 6 passing through flanges 4 welded at 5 to the sections. Sheet insulation 7 is clamped between the flanges, an insulating tube 9 surrounds each bolt, and insulating washers 8 are interposed between the bolt head and nut and the flanges. To the bottom of the section 1 a runner 10 is clamped by screws 12, and insulation 11, 13, 15 is disposed as shown. Specifications 641,827 and 641,829 are referred to.
Patent GB-213062-A (GB)
Title: Improvements in and relating to windows and the like
IPC: E05F11/38
Filed: 1923-02-03
Abstract: 213,062. Lance, J. Feb. 3, 1923. Holders for sliding windows.-Sliding sashes are over - balanced by weights 11 so as to close automatically when retaining pawls 6 spring- pressed into engagement with the racks 5 are released therefrom by means of the handle 10 and spindle 7.
Patent GB-675240-A (GB)
Title: Non-fogging rubber hydrochloride film
IPC: C09K3/18
Filed: 1950-02-08
Abstract: 675,240. Rubber hydrochloride films. WINGFOOT CORPORATION. Feb. 8, 1950 [July 13, 1949], No. 3281/50. Addition to 635,740. Class 70 A non-fogging film of rubber hydrochlordie is produced by adding 1 to 10 per cent, preferably 3 per cent, of a polyethylene glycol ester of an aliphatic acid of 12-20 carbon atoms to a solution of rubber hydrochloride in benzene, casting the solution as a film and evaporating the benzene to produce film which is substantially 0.0008 to 0.002 inch thick. Preferred esters are the di- and tri-glycol esters of oleic acid, lauric acid and stearic acid; and specified esters are triethylene glycol dioleate, tetraethylene glycol dioleate, polyethylene glycol mono-oleate, polyethylene glycol dilaurate and polyethylene glycol monostearate.
Patent GB-1011564-A (GB)
Title: Process for the manufacture of linear polyesters
IPC: C08G63/84
Filed: 1962-08-28
Abstract: In the manufacture of linear fibre-forming polyesters by reacting dicarboxylic acids or their functional derivatives with glycol and polycondensing the resulting product, there is used as a catalyst for the polycondensation a complex of (a) an aromatic compound containing at least two functional groups which permit the formation of complex compounds with metals, (b) a bivalent cationically bound metal and an anionically bound metal.  If the functional derivative of the dicarboxylic acid is an ester, the catalyst may also be used as a catalyst for the transesterification reaction. Specified catalysts are complexes of (a) pyrocatechol, salicylic acid, 1:2-dihydroxynaphthalene, 2 - hydroxy - 1 - naphthoic acid, a :a 1 - dihydroxydiphenyl or a :a 1-dihydroxyfluorene, (b) Mg, Cu, Sr, Ba, Zn, Cd, Pb, Mn or Co and (c) Ti, Sn, B, Bi or Sb.  Specified polyesters are those derived from (i) terephthalic, imphthalic, 4:4-diphenyldicarboxylic, 4:41-sulphonylidibenzoic, adipic or sebacic acids and (ii) ethylene-, trimethylene-, tetramethylene- or 1:4 - cyclohexylenedimethylene - glycol. Examples describe the manufacture of polyethylene terephthalate. Specification 824,321 is referred to.
Patent GB-760499-A (GB)
Title: Improvements in or relating to heating element composition
IPC: H05B3/26
Filed: 1954-02-04
Abstract: A heating element composition comprises a mixture of finely-divided electrically-conductive metal particles and a thermosetting binder composed of a urea- or melamine-formaldehyde resin together with an epoxy resin derived from a polyhydric phenol and an epihalohydrin or its equivalent, which is free from functional groups other than epoxide and hydroxyl groups.  The metal particles are preferably in flake form and are predominantly under 40, preferably under 10, microns.  Suitable metals are silver, aluminium, chromium, copper and nickel, and they may be in the range of about 3 to 80 parts to between 20 to 50 parts of the resins.  Other less conductive particles are also generally included, these being of graphite and metal oxides such as antimony oxide.  The proportions of resins may be from 6 to 9 of epoxy resin to from 2 to 4 of formaldehyde resin. The mixture is deposited by spraying the composition thinned with a solvent such as dioxane, toluene, xylene, methyl isobutyl carbinol and methyl isobutyl ketone.  After spraying, the coating is heated to about 350 DEG  F. so that the resins become completely polymerized. In the production of the element, a base layer may be applied to the surface of the body which is to carry the heating film, and this layer comprises a mixture of an epoxy resin as described above which has been esterified with a long-chain fatty acid, e.g. coconut or dehydrated castor fatty acid, together with a urea-formaldehyde, phenol-formaldehyde or melamine-modified urea-formresin, and, if desired, pigments such as vermiculite, mica and antimony oxide.  This composition is applied in the same way as the heating film composition.  A final coating may also be applied consisting of a mixture of an esterified epoxy resin and a urea-formaldehyde resin. Specification 718,161 is referred to.
Patent GB-307727-A (GB)
Title: The manufacture of 6-alkoxy-8-amino-quinolines
IPC: C07D215/40
Filed: 1927-12-12
Abstract: 307,727. I. G. Farbenindustrie Akt.- Ges., and Carpmael, A. Dec. 12, 1927. Addition to 267,457. 6-Alkoxy-8-aminoquinolines are prepared by subjecting 6-alkoxyquinoline-8-carboxylic acid amides to the Hoffmann decomposition. In an example 6-methoxy-8-aminoquinoline is obtained by stirring 6-methoxyquinoline-8-carboxylic acid amide into a solution of bromine and caustic potash in water and heating, caustic soda being added gradually. 6-Methoxyquinoline-8-carboxylic acid amide is prepared by coupling rn-hydroxybenzoic acid with diazotized aniline and metllylating with methyl iodide. The azo compound is reduced and the resulting amino compound is transformed by Skraup's synthesis into 6-methoxyquinoline-8- carboxylic acid methyl ester, which by heating with ammonia forms the amide. Specification 275,277 is referred to.
Patent GB-594474-A (GB)
Title: Improvements in and relating to the production of magnestisable materials and to thefabrication of magnets therefrom
IPC: H01F1/11
Filed: 1945-02-09
Abstract: Magnetisable material is produced by chemically co-precipitating without heat, a double salt of iron and cobalt and decomposing it to a double oxide by heating in two stages, first in a closed container at, e.g., 350-500 DEG  C., and second to at least 600 DEG C.  The oxide is cooled in air, if desired with an aligning magnetic field, and may be moulded, with or without a binder, e.g., wax or synthetic resin, either with low pressure in a heated mould or with high pressure followed by heating to polymerise the resin if present.  It may be aligned in a field before pressing.  The oxide may also be admixed and cast with or sprayed upon a carrier, e.g., steel or cellulose acetate to form a flexible magnetisable strip.  In an example, ferrous and cobalt sulphates are precipitated with ammonium oxalate, the double salt heated to 450 DEG  C. and 600 DEG  C. and then pressed at 180 DEG  C. with 20 tons per sq. inch pressure.  The ferrous sulphate to cobalt sulphate ratio may be from 1 to 6 while 1-20 per cent. of binder may be used.ALSO:Magnetizable material produced by heating in two stages a coprecipitated double salt, e.g. oxalate of iron and cobalt to form double oxide, may be moulded with or without a binder, or admixed and cast with or sprayed upon a carrier, e.g. steel or cellulose acetate to form a flexible magnetizable strip for recording and reproducing waveforms.  The oxide may be cooled in an aligning field in air.
Patent GB-489860-A (GB)
Title: Filters
IPC: B01D46/24
Filed: 1937-02-04
Abstract: 489,860. Filters. I. G. FARBENINDUSTRIE AKT.-GES. Feb. 4, 1937, No. 3346. Convention date, Feb. 4, 1936. [Class 46] [Also in Group XXVIII] A filter comprises perforated axial and peripheral inlet and outlet frames 1, 2 between which sheets 3 of filtering material are loosely inserted, the whole being held together by end plates removably secured by bolts 7 and nuts 8. The filter surfaces may be held distended by porous fillings or ribbed plates inserted on the low-pressure side. Specifications 155,371 and 227,550, [both in Class 46], are referred to.
Patent GB-380704-A (GB)
Title: Improved method of timbering underground-workings
IPC: E21D11/15
Filed: 1932-02-05
Abstract: 380,704. Mine linings. SCHNEIDER, M., 94, Hafenstrasse, Ruhrort, Duisburg, Germany. Feb. 5, 1932, No. 3447. Convention date, April 17, 1931. [Class 86.] Underground workings are lined with a continuous surface formed of interlocking metal units 3 supported by transverse frames. The units, Fig. 5, may be of two separate patterns, one provided with pressed up beads near the longitudinal edges, while the other is provided with recessed edges 9 to interlock. Alternatively, the units may be formed similar with a bead 7, Fig. 6, near one edge and a recess 9 at the other edge. The units may be of curved cross section and the meeting edges formed of dovetail section. Adjacent units are arranged in staggered fashion with their ends resting on the cross supports 2 to which they are clamped by bolts 13 and clamps 12, Fig. 4. Angle-shaped units 15 are used at the angles to join the roof and wall series of lining members.
Patent GB-763595-A (GB)
Title: Improvements in processes for spinning cuprammonium rayon by the funnel stretch spinning process
IPC: D01D5/14
Filed: 1953-02-06
Abstract: In the spinning of cuprammonium rayon by the funnel stretch-spinning process, the mean linear velocity of the precipitation liquid in the spinning funnel, in the region of the mean maximum velocity gradient of the filaments, is at the most 30 metres per minute lower than the mean speed of the filaments in this region.  The mean maximum velocity gradient of the filaments is defined as the mean of the maximum velocity gradients of the individual filaments.  The velocity gradient of a filament at any point along its path from the spinneret is defined as the slope at that point of a curve obtained by plotting the linear speed of the filament against the path travelled, this slope being expressed as the increase in filament speed per centimetre of filament path travelled.  The mean linear velocity of the precipitation liquid in the spinning funnel through a cross-section of the funnel at any given point is defined as the volume of flow per unit time divided by the cross-sectional area of the funnel at that point. In an example, the draw-off velocity of the filaments is 150 metres per minute, the spinning bath temperature is 40 DEG  C., the individual filament titre is 1.4 denier, the distance of the mean maximum velocity gradient of the filaments from the spinneret is 36 cm., the mean maximum velocity gradient of the filaments is 6.5 metres per minute per centimetre, the mean filament speed at the point of mean maximum velocity gradient is 75 metres per minute, the linear velocity of the precipitation liquid at this point is 60 metres per minute, and the volumetric rate of flow of precipitation liquid through the funnel is 4,200 c.c. per minute. The method enables higher spinning speeds to be used without increase in the frequency of filament breakage.
Patent GB-137147-A (GB)
Title: Improvements in electromagnetic relays
IPC: H01H50/34
Filed: 1919-02-13
Abstract: 137,147. British L. M. Ericsson Manufacturing Co., Blades, N., and Sutherland, A. E. Feb. 13, 1919. Electro-magnetic relays.-In an electro-magnetic relay, the tags T and contacts S are mounted on the iron yoke Y with suitable insulation. They are coated with insulating-material, and the middle set is covered with an insulating-screen D, Fig. 4. The whole is arranged to fill the opening in the plate P completely. The ends of the tags T project downwards through a hole O in the yoke Y. The armature A pivots on a knife-edge formed on the yoke Y. The armature itself has an aperture B cut so as to leave a knife-edge, the two knife-edges enabling the armature to function in any position. The movement of the armature is limited by an eccentric-headed screw X which is adjustably held in lugs L', L" mounted on the yoke.
Patent GB-990022-A (GB)
Title: Improvements in alloys with a nickel-chromium base
Inventor: BRADBURY ERNEST JAMES
IPC: C22C19/05
Filed: 1961-01-30
Abstract: A creep-resistant alloy contains in percentage by weight <FORM:0990022/C6-C7/1> the Ti and Al contents being such that Ti:Al lies within the range of 0.7:1, and (Ti+Al) is between the limits defined by Mo (0.15 Cr-2.7) + (25.6-0.9 Cr) and Mo (0.15 Cr-2.7) + (23.5-0.9 Cr), the Ti and Al contents being furthermore so controlled that Mo+2Al+4Ti is not less than 22.  The molten alloy may be refined by holding under high vacuum for at least 5 minutes; exemplified is treatment for 90 minutes at 1500  DEG C. under a pressure not exceeding 200 microns.  A heat treatment sequence referred to consists of 1 1/2 hours at 1200  DEG C. air cooling, 6 hours at 1050 DEG C. and again air cooling.  The alloy may be used for turbine parts.
Patent GB-283003-A (GB)
Title: New or improved protector for the cursors of slide rules
IPC: G06G1/06
Filed: 1927-02-08
Abstract: 283,003. Eyre & Spottiswoode (Bible Warehouse), Ltd., and Cosans, T. D. Feb. 8, 1927. Slide - rules. - The glass c of a cursor is protected when not in use by a metal or other cover d of channel section and adapted to be sprung into position. The side walls of the cover mav be coterminous with those of the cursor or they may be extended as at e<1> so as to grip the bodv of the rule. One or both of the side walls may be turned outwardly as at f or f<1> to facilitate handling.
Patent GB-860233-A (GB)
Title: Improvements in photographic color processes and products
IPC: G03C8/08
Filed: 1958-02-04
Abstract: 860,233. Photographic coloured transfer images. INTERNATIONAL POLAROID PRODUCTS. Feb,. 4, 1958 [Feb: 18, 1957], No. 3593/58. Class 98(2) An exposed silver halide emulsion layer is; permeated with a processing- composition to develop the latent: image: and to provide a uniform -distribution of alkali in quantity to be fully reacted in fully exposed areas, as by neutralisation of released hydrogen halide, and leave unexhausted alkali in other areas to render a colour providing substance, which may have been initially contained in the processing composition, or in the emulsion itself incorporated in particles of a water-impermeable alkali permeable material, available for transfer in imagewise distribution to a superposed receiving element. The latter may form part of a photographic product for the purpose having, as in Fig. 1, support 10 for receiving element or layer 12 next to which is a water-impermeable layer 14 followed by a rupturable container 16 as of Specification 684,592 but containing the colour providing substance as well as processing materials, and then the photosensitive layers 18 and its support 20: use of this product involves action of the unexhausted alkali on layer 14  with permeation of the colour providing substance .therethrough to the iimage receiving layer 12 and sepuration of this. Fig. 2 shows an embodiment operable by permeation of the colour providing substance through the ,photosensitive layer 32 to the image-receiving layer 30, layer 38 acting only as a spreading sheet; and Fig. 3 one in which the colour providing substance in particles is-contained in the emulsion layer itself. Eight examples illustrate the single colour transfer features of the invention, thus in Example 1 Rhodamine B emulsified into aqueous gelatin solution is 'mixed with a silver iodobromide emulsion and a layer of this on a gelatin-coated cellulose acetate film base is exposed and processed with an aqueous composition comprising sodium carboxymethyl cellulose 4À5% sodium hydroxide 0.7%, potassium bromide 0À2%, 1-phenyl-3-pyrazolidone 0À2% and hydroquiftorfe[0. 5% while superposed on an imagereceiving element similar to that of Example 1 of Specification 860,234 to show a positive magenta image on such element after separation. Examples 2-7 are similar, specifying various dyes for images of various colours, but Example 8 shows a decided variation, in this a silver image produced] by diffusion transfer on a cellulose acetate coated baryta paper is soaked with water and then treated with green printing ink to show a positive image. Multicolour procedure is indicated briefly with suggestion of use of a photo sensitive screen prepared as described in Specification 804,976. Specifications 684,591, 706,921 and 811,579 also are referred to.
Patent GB-450821-A (GB)
Title: Improvements in and relating to forced oil lubrication for the cylinders of piston machines
IPC: F01M1/04
Filed: 1936-02-06
Abstract: 450,821. Lubricating passages in cylinders and pistons. SIEMENS APPARATE UND MASCHINEN GES., 4, Askanischer Platz, Berlin. Feb. 6, 1936, No. 3661. Convention date, Feb. 22, 1935. [Class 122 (i)] Oil circulated by the pump 3 enters the cylinder walls through holes 7 and is collected in an annular groove 8 on the piston skirt. It passes to a second annular groove 10 through grooves 9 and is removed through ports 11 in the cylinder walls to return to a collecting chamber 4. The upper end of this is connected to the engine sump by a passage 14, the non-return valve 16 in which allows the reduced pressure in the sump to assist in the circulation of the oil.
Patent GB-478912-A (GB)
Title: Improvements in or relating to continuous-feed kinematograph projectors
IPC: G03B41/10
Filed: 1937-02-08
Abstract: 478,912. Kinematograph projectors. MEYER, L. W. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken) Feb. 8, 1937, No. 3726. [Class 97 (i)] In continuous-feed apparatus comprising a reflector rocked for optical compensation by a lever arm and cam, the bearing of the reflector is fixed with respect to the gate, and the average angular velocity of the mirror is adjusted by movement of the bearing of the mirror, or of the cam, in the direction of the lever arm. As shown, a gate 3, light source 4, condenser 5, rocking mirror 6, and projection lens 7 are mounted on a plate 8 movable by a rack 11 and pinion 10 in the direction of a lever arm 12 engaged with a cam 14 by a spring 13. Film centring may be effected by a roller 18 on a rocking lever 17. In a modification, the cam spindle is carried by a lever rotatable about the centre of a driving gear meshing with a gear on the cam spindle, and the rack and pinion are omitted.