baber/WOPTO huggingface dataset:
Patent GB-338202-A (GB)
Title: Improvements in or relating to the manufacture of cellulose esters
IPC: C08B3/16
Filed: 1929-08-16
Abstract: 338,202. Kodak, Ltd., (Assignees of Staud C. J., and Webber, C. S.). Feb. 25, 1929, [Convention date]. Cellulose carboxylates.-Mixed cellulose esters are obtained by digesting an acyl ester of cellulose with a carboxylic acid containing a ketonic group in the alpha or gamma position. Suitable acids mentioned are pyruvic, a-keto-butyric, aketo-valeric, a-keto-caproic, and levulinic acids. The reaction is preferably carried out by digesting a solution of the acyl ester of cellulose in the desired keto-acid in a flask fitted with a reflux condenser, at a temperature of about 100‹ C. and at atmospheric pressure. The use of higher pressures is referred to. The composition of the mixed ester obtained depends on the extent of the digestion and the amount of water present, the longer the digestion the more does the solubility of the product pass over from solubility in acetone, to solubility in alcohol-water mixtures, and finally to solubility in water. The initial acyl ester may or may not be partially hydrolyzed to the acetone soluble stage. In examples : (1) Cellulose triacetate is dissolved in pyruvic acid and heated to 100‹ C.; the product is soluble in acetone and in 75 per cent aqueous ethyl alcohol. If the mixture is heated for a longer period, the product obtained is soluble in 50 per cent aqueous alcohol at 20-30‹ C. (2) Cellulose acetate with a 33 per cent acyl content is dissolved in pyruvic acid and heated to 100‹ C. The product is soluble in 50-75 per cent aqueous alcohol and in a chloroform-alcohol mixture. (3) Cellulose acetate containing 37.6 per cent acetyl is dissolved in pyruvic acid and heated to 100‹ C., giving a mixed ester soluble in acetone and in a chloroform-ethyl alcohol mixture. (4) Cellulose acetate having a 33 per cent acetyl content is dissolved in commercial pyruvic acid and heated to 100‹ C. The product is soluble in cold water, in 50-75 per cent aqueous alcohol, and in a chloroform-alcohol mixture. If the time of heating is extended, the product is soluble in 50 per cent aqueous alcohol and also in water, but insoluble in 95 per cent and in 75 per cent aqueous alcohol, and also in acetone, chloroform, and a chloroform-alcohol mixture. (5) Cellulose acetate (34 per cent acetyl) dissolved in levulinic acid is heated by steam to 100‹ C.; a cellulose aceto-levulinate is obtained, soluble in 50 per cent aqueous alcohol.
Patent GB-259601-A (GB)
Title: Improvements in and relating to apparatus for the production of hollow articles fromplastic and viscous substances
IPC: C03B9/20
Filed: 1926-10-08
Abstract: 259,601. Bartos, F. Oct. 8, 1925, [Convention date]. Moulding-machines.- Apparatus for producing hollow articles from plastic or viscous masses comprises a work holder carried by a beam adapted to swing in a vertical plane and equippcu with a tool or tools adapted to operate upon the work during or at the end of such swinging movement, the beam and tools being actuated by a driving shaft parallel with the beam. As shown, a frame 19, carried by links 18 and balanced by a weight 20 is worked by cams 7<1> through racks and levers. The cams are mounted upon a shaft 5 supporting cams 6, 7 which are adapted, through parallelogram linkages or chain gear, to actuate fluid supply &c. valves, and tools carried, tor example, on a head 35; a work table 39 is controlled by a face cam 8 so as to co-operate with the head 35 and to discharge completed articles on to a delivery shoot 44. Moulds &c. 37, 38 are arranged on the table 39 in appropriate positions. As applied specifically to glass, the work holder may carry a mould &c. adapted to be dipped into a bath and filled by suction, the charge being severed automatically by a suitable tool and the holder then rocking to transfer the work to a finishing-mould 39 where it is discharged by fluid pressure. The apparatus is carried by a stationary or portable frame 1. The invention is stated to be applicable to ceramics, celluloid and vulcanite. The Specification as open to inspection under Sect. 91 (3) (a) refers to the treatment of solid articles or blanks and states that the operation may comprise cutting, shaping, moulding, pressing, packing &c., and the appliances for picking up the work may comprise grippers, grabs, magnets, scoops &c. This subject-matter does not appear in the Specification as accepted.
Patent GB-171227-A (GB)
Title: Improved chassis for motor cycle side cars
IPC: B62K27/06
Filed: 1920-08-31
Abstract: 171,227. Gordon, T. Aug. 31, 1920. Springs, arrangement of and mounting bodies on.-A side-car chassis is provided with one or more upwardly-curved leaf springs b the extremities of which are each provided with a roller c adapted to be engaged by the bottom of the body c<1> when the load is sufficient to overcome the main suspension springs d<1>, d<2>. One or more additional springs d have their free ends - connected as by a strap d<4> with the body to control rebound, and the springs d may be extensions of the front springs d<1>.
Patent GB-996974-A (GB)
Title: A device for controlling the motor of a hydro-electric set
IPC: F03C1/40
Filed: 1961-07-11
Abstract: 996, 974. Automatic control of voltage and temperature. A. CITROEN S.A. July 11,1961 [July 19,1960; Jan. 19, 1961], No. 25097/61. Heading G3R. A hydraulic motor 1 driving generator 2 is controlled by distributer 7 connecting cylinder 4, regulating the inclination of driving-plate 3, either to a source of high pressure 18 or to exhaust 19. When the voltage of the generator exceeds a predetermined value, coil 8 actuates slide-valve 20 so that cylinder 4 is connected to the exhaust. As a result, the driving-plate 3 is returned to its neutral position by spring 5, so reducing the motor power and re-establishing the generator voltage to the desired value. The temperature of battery 24, which is charged by the generator, is measured by probe 10 connected to bellows 9 assisting in the displacement of armature 22. In another arrangement, core 21 is excited by two coils, one responsive to the generator voltage, whilst the other is connected to the battery through a temperatureresponsive switch, Fig. 3 (not shown). Alternatively, a bi-metallic strip is thermally associated with the battery and acts mechanically upon the core of the electromagnet, Fig. 4 (not shown). In a further embodiment, a thermistor is connected in series with the coil 8 and increases the current supplied thereto when the temperature of the battery increases, so reducing the generator voltage. The action is reversed when the temperature of the battery decreases, Fig. 5 (not shown).
Patent GB-163628-A (GB)
Title: A new or improved food for animal consumption
IPC: A23K1/14
Filed: 1920-09-01
Abstract: 163,628. Hardcastle, H. M. Sept. 1, 1920. Food for animals.-A food for animals consists of hop meal and saccharine matter, preferably molasses, mixed with one or more of the following ingredients-barley meal, wheat meal, oat meal, rice meal, bean meal, pea meal, cotton cake meal, wheat sharps, wheat bran, maize meal, starch meal, ground cakes such as palm nut cakes, linseed cakes, and salt. Specifications 14124/03 and 120,166 are referred to.
Patent GB-608300-A (GB)
Title: Folding service waggon
IPC: A47B31/04
Filed: 1946-08-23
Abstract: 608,300. Dinner wagons. COLLINS, W. C. Aug. 23, 1946, No. 25201. [Class 52(iii)] Side frames B are hinged to fold against a back frame A after the trays C have been unhooked and swung down about hinges on the back frame rails. The top tray may be invertible. Reference has been directed by the Comptroller to Specifications 334,472, [Class 52(iii)], and 441,645.
Patent GB-727069-A (GB)
Title: Process for effecting reactions in rotary or oscillatory furnaces
Inventor: SCHMIDT KARL
IPC: C22B9/00
Filed: 1952-10-08
Abstract: 727,069. Rotary furnaces. SCHMIDT METALLSCHMELZWERK, GES., K. Oct. 8, 1952, No. 25248/52. Class 51 (2). A process for effecting a reaction between a metal and a slag or other material is characterized by.the use of a rotary furnace having a lining in the form of a polygon, the furnace being rotated at a speed of between 2 and 8 revolutions per minute. Specification 689,223 is referred to.
Patent GB-420881-A (GB)
Title: Improvements in and relating to television arrangements with cathode ray tubes
IPC: H01J29/52
Filed: 1933-04-03
Abstract: 420,881. Television; cathode - ray tubes. RADIOAKT.-GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, and SCHLESINGER, K., 39, Friedrichstrasse, Friedrichshagen, both in Berlin. April 3, 1933, No. 25279/34. Convention date, Jan. 12, 1933. Divided out of 420,667, under which a Specification was laid open to inspection under Sect. 91 of the Acts, Oct. 5, 1933. [Classes 39 (i) and 40 (iii)] The cathode-ray tube of a television arrangement has its cathode 1 surrounded by an open-ended auxiliary electrode 2 having a constant potential different from that of the cathode, and the control voltage for modulating the ray is applied to a Wehnelt cylinder 5 surrounding the electrodes 1, 2. An electron-optical system 7, 8 as described in Specification 420,667 reproduces on the picture screen the cathode or the aperture in the electrode 6. The electrode 2 determines by its potential the curvature of the zero equipotential surface in front of the cathode and prevents changes in the shape of the surface when the ray increases to saturation current. If the electrode 2 is negatively biassed, the surface is concave and the arrangement acts as if the emissive surface of the cathode were concavely shaped. With the electrode 2 positively biassed, the arrangement acts as a convex cathode. The Specification as open to inspection under Sect. 91 comprises also the variation of the voltage of the electrode 2 with the control voltage. This subject-matter does not appear in the Specification as accepted.
Patent GB-634646-A (GB)
Title: A process for the preparation of 2:4-dichloro-1-aminoanthraquinone
IPC: B02C2/04
Filed: 1946-08-26
Abstract: 2.4-Dichloro-1-aminoanthraquinone is prepared by directly chlorinating 1-aminoanthraquinone suspended in glacial acetic acid with dry chlorine at 90-100 DEG  C.  An example is given. Specification 19531/99, [Class 2], is referred to.ALSO:2.4 - Dichloro - 1 - aminoanthraquinone is prepared by directly chlorinating 1-amino-anthraquinone suspended in glacial acetic acid with dry chlorine at 90-100 DEG  C.  An example is given. Specification 19531/99, [Class 2], is referred to.
Patent GB-187805-A (GB)
Title: Process for the recovery of material for the manufacture of paper
IPC: D21C5/02
Filed: 1921-09-26
Abstract: 187,805. Kumagae, S., and Chiba, T. Sept. 26, 1921. Pulp, preparation of.-Waste printed paper is boiled in a solution containing soap, hyposulphite of soda, and a waste fluid known as "tofu whey," which remains after preparing a food of Japan and China known as " tofu " from the soya bean. The printing ink is thus loosened, and is removed by beating and washing.
Patent GB-1433793-A (GB)
Title: Photosensitive materials
IPC: G03F7/004
Filed: 1973-05-29
Abstract: 1433793 Difurfurylidene pentaerithritol FUJI PHOTO FILM CO Ltd 29 May 1973 [26 May 1972 8 June 1972] 25512/73 Heading C2C [Also in Division G2] Difurfurylidene pentaerythritol is produced by refluxing furfural, pentaerythritol and ptoluene sulphonic acid until mixture became black whereupon it was filtered and the filtrate poured into ligroin.
Patent GB-445676-A (GB)
Title: Improvements in cathode-ray oscillographs and other electric discharge tubes
IPC: H01J29/87
Filed: 1935-09-14
Abstract: 445,676. Discharge apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. Sept. 14, 1935, No. 25576. Convention date, Nov. 12, 1934. [Class 39 (i)] To prevent the pinch-stem of a television cathode-ray tube &c. from being projected through the tube by inrush of air on cracking of the stem and so to avoid danger to operators or observers, a wire or other metal member, additional to the lead-in conductors, is sealed into the stem and secured to the wall of the tube or to a part outside the tube such as its cap or housing and holds the stem against the force of the air. The member has no weld inside the pinch and may be of ferrochromium to permit intimate contact with the glass. One or more of the conductors sealed into the pinch may also be used for protection.
Patent GB-239392-A (GB)
Title: Improvements in and relating to adjusting devices for ploughs
IPC: A01B3/46
Filed: 1924-06-06
Abstract: 239,392. Jensen, C. A., (Oliver Chilled Plow Works). June 6, 1924. Multiple-furrow ploughs; lifting devices, power. - A plough fitted with lifting-means deriving operation from land wheels is provided with depth-adjusting mechanism comprising an adjustable lever 15 loosely mounted on one of the cranked axles and furnished with a stop arm 16 extending over the crank of the axle. The lever 15 is shown mounted on the land-wheel axle 8 with the arm 16 projecting forwardly. The lever is adjusted by means of a screw device 17 supported by a standard 19.
Patent GB-768272-A (GB)
Title: Improvements in or relating to smokers' ash-trays
IPC: A24F19/04
Filed: 1954-09-03
Abstract: 768,272. Smokers' ash-trays. ERHARD & SOHNE GES. Sept. 3, 1954 [Sept. 3, 1953], No. 25620/54. Class 130 Braking means, such as a counteracting spring 6 or equivalent lost-motion weight device, prevents noisy impact of a spring- loaded lid 11 on an ash-tray rim 2<SP>1</SP>. A nut 8 fixed to the rim 2<SP>1</SP> by a bridge piece having cigar rests 4 engages a screw 10 depressible by a handle 9 to open the lid 11, which has a ball free-wheel connection with the screw 10 so as to spin on opening and deposit refuse thereon centrifugally into the ash-tray. The spring 6 optionally works in a telescopic holder 5 fixed to the nut 8 and limiting the braking action to the final closure of the lid 11, when it contacts the lower end of the holder. Alternatively, the spring 6 or holder 5 may be fixed to the lid 11 or loosely mounted on the screw 10. In modified forms, the spring 6 is replaced (a) by a sleeve having inwardly or outwardly bent spring tongues, (b) by a weight having limited axial motion on a smoothed end portion of the screw 10 and co-acting with the lid 11, as via spring fingers on the lid and/or a cushioning surface on the weight.
Patent GB-1338347-A (GB)
Title: Turbo-machines
IPC: F01D5/02
Filed: 1972-06-01
Abstract: 1338347 Gas turbine: jet propulsion engines SOC NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION 1 June 1972 [2 June 1971] 25670/72 Headings F1J, F1G and FIT A two-tier blade assembly comprises , Fig. 1, radially inner and outer compressor and turbine blades 3, 4, respectively, separated by a hollow box 5, defined by walls 9, 10, 11, the circumferentially adjacent boxes forming an annular passage 8, which receives cooling air from the compressor through gaps 12 between adjacent walls 9. The cooling air thence flows through drillings 14 in walls 10 and into passages 13 in turbine blades 4 before escaping through tip openings 15. The boxes 5, 5a of axially adjacent blade rings interfit at 16 to reduce leakage. The machine may be of contra-rotating type or may have fixed stators. Each box 5 and its associated blades 3, 4, may be made as a single casting, as two parts welded together at (17), Fig.4 (not shown)), or incorporating a dovetail root fixing (18), Fig.5 (not shown). The blade assembly may form part of a gas turbine jet propulsion by-pass engine, Fig.8, in which the rotor discs 20, 20a respectively have further sets of compressor blades 19, 19a inwardly of blades 3, 3a. The blades 19, 19a may be in the same plane as discs 20, 20a or offset therefrom, as shown, and supply air via centrifugal compressor 22 to blades 3, 3a. The latter feed a reverse flow combustion chamber 28 which directs gases to drive blades 4, 4a and further turbine blades 23.
Patent GB-894995-A (GB)
Title: Improvements in or relating to hydraulic roof supports for mining operations
IPC: E21D23/08
Filed: 1958-08-11
Abstract: 894,995. Hydraulic pit props. GEWERKSCHAFT EISENHUTTE WESTFALIA. Aug. 11, 1958 [Aug. 10, 1957], No. 25770/58. Class 20(2) A row of mine roof support frames each comprising two hydraulic props 1, 2 connected by a shifting jack cylinder 3 have the front and rear props connected alternately by pvioted links 6 to maintain the frames in the same planes.
Patent GB-372211-A (GB)
Title: Improvements relating to scrapers for ice-cream freezers
IPC: A23G9/10
Filed: 1931-09-15
Abstract: 372,211. Ice-cream freezers. NEILSON, R. J., 209, Crossloan Road, Govan, Glasgow. Sept. 15, 1931, No. 25797. [Class 29.] A rotary ice cream freezer can 1, Fig. 3, is provided with scraper blades 2 integral with rods 5 supported at their lower ends in the base of a stationary U-shaped blade holder and at their upper ends in lugs formed on the vertical limbs of the holder. The removal of the blades is effected, as shown in Fig. 2, by rotating the rods until the blades are in alignment with slots 8 formed in the lugs and then moving them vertically. If desired, the rods may be formed with slotted portions 9 adapted to be aligned with and passed through the slots in the lugs to facilitate removal of the blades.
Patent GB-479149-A (GB)
Title: Arrangement for adjusting the image when the cathode ray is deflected statically andfor stabilising the same, especially for television purposes
IPC: H04N3/223
Filed: 1936-09-23
Abstract: 479,149. Television. MICHAELIS, E. Sept. 23, 1936, No. 25822. [Class 40 (iii)] The deflecting plates E, F, of a cathode-ray tube are connected to the deflecting oscillation generator A, over resistances B, C, which are variable to adjust the size and position of the scanned area. If only one resistance is used, it should occupy the position B. The resistances are preferably of the order of 0À5 megohm. The resistances may be coupled together, so that one increases when the other decreases, to vary the position on the screen. The resistances in the leads to the line deflecting plates may also be coupled with those in the leads to the frame deflecting plates so that the length and width of the scanned area hear a constant ratio to each other.
Patent GB-156928-A (GB)
Title: Improvements in spigot taps
IPC: F16K5/10
Filed: 1919-10-21
Abstract: 156,928. Muntz, W. E. Oct. 21, 1919. Plug cocks; closure members.-A valve device for deflecting the discharge of liquids and selecting the size and shape of the issuing jet comprises a hollow coned plug 8 fitted with a coned selector plug 14 having through passages 15 varying in shape, size, and position. The plugs are held to their seatings by enclosed springs and are actuated by separate handles at opposite ends. The arrangement is used in conjunction with a plug cock 1 in which the plug 5 has a tapered slot 4 co-operating with one or more long tapering ports 3 in the valve casing whereby single liquids, or a mixture of liquids in variable proportions, may be controlled.
Patent GB-143466-A (GB)
Title: Improvements in tongs
IPC: F24B15/10
Filed: 1919-10-22
Abstract: 143,466. Carver, J. D. Oct. 22, 1919. Tongs.-In coal or other tongs of the kind in which the gripping-jaws are pivoted to the arms, the jaws are pivoted so as to turn in planes at an angle to each other, the jaws being preferably arranged to cross each other when closed. As shown, the jaws 4 are pivoted between pairs cf lugs 3 en the arms 1 so as to move in planes at right-angles and, when closed, cross each other diagonally. The jaws may be of any shape but are preferably flat plates formed at their extremities with teeth 5. Instead of pivoting the jaws between pairs of lugs 3, each arm 1 may be provided with a single lug entering a recess in the jaw.
Patent GB-734164-A (GB)
Title: Improvements in or relating to high-frequency multi-layer conductors
IPC: H04B3/52
Filed: 1953-09-18
Abstract: 734,164. Conductors. SIEMENS & HALSKE AKT.-GES. Sept. 18, 1953 [Sept. 18, 1952], No. 25868/53. Class 36. [Also in Group XXXIX] In a high-frequency multi-layer conductor comprising alternate thin layers of metal and insulation, the conductor 12 lying outside the zero current layer 10 is interchanged at intervals with the conductor 11 lying within the zero current layer. The conductors may be interchanged symmetrically at regular intervals such as at the junction points of manufactured lengths. Annular coupling discs consisting of an inner conducting ring 11<1> separated from an outer conducting ring 121 by insulation 101 may be soldered to the conductor ends, conductive bridges 17, 18 being used to effect the interchange of the inner and outer conductors. The conductors may be subdivided into an equal number of component multi-layer conductors 23, 24, 25, 26 and 27, 28, 29, 30, the component conductors of one layer being led over into the other layer at predetermined intervals while the cross-sections are modified accordingly. Specifications 734,160 and 734,163 are referred to.
Patent GB-501259-A (GB)
Title: Improved device for the mechanical recording of sound and like oscillations
IPC: G11B3/00
Filed: 1938-09-05
Abstract: 501,259. Recording sound &c. mechanically on films. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Sept. 5, 1938, No. 25940. Convention date, Sept. 8, 1937. [Class 40 (ii)] Relates to apparatus for recording sound and like vibrations on a film by means of a recorder comprising an armature having a high resonance frequency, the film passing over a stationary support at the recording point. According to the invention, in order to minimize the disturbing effect of shocks, the supporting means for the armature is directly connected to the stationary film support. As shown applied to apparatus for making a record by means of a V-shaped chisel for optical repro. duction, the film 1 passes at the recording point over a hard steel inset 4 in a block 10, and the member 10 is directly connected to the housing 11 of the recorder by means of an ear 14 on the latter. The connection at 16 is adjustable, so that the depth of out may be varied. The recording-device is constructed as described in Specification 441,747, [Group XXXIX].