baber/WOPTO huggingface dataset:
Patent GB-405900-A (GB)
Title: A process for the recovery of indene
IPC: C07C7/14
Filed: 1933-08-11
Abstract: Tar oils containing indene are fractionally distilled to produce a fraction containing about 80 per cent. of indene, and this fraction is cooled to about - 25 DEG  C. to effect crystallization of indene, which is separated from the mother liquor in a centrifuge, suction filter or like apparatus cooled to about the same temperature.  The fraction obtained containing less than about 80 per cent of indene, and having a freezing point below about - 14 DEG  C., may be cooled to a lower temperature, e.g. to - 35 DEG  C., to recover an impure solid indene, which is separated, fused, and treated to recover indene as described above; if necessary, the impure indene may first be concentrated by repeated freezing and/or by fractional distillation.  The Specification refers to prior methods of recovering indene from tar oils by converting the indene into its sodium compound or into insoluble double compounds with picric acid, 1 : 3 : 5-trinitrobenzene, or basic mercuric sulphate. Specifications 208,691 and 221,773, [both in Class 32, Distilling &c.], are referred to.
Patent GB-471956-A (GB)
Title: A new or improved form of collapsible table
IPC: A47B5/02
Filed: 1936-08-15
Abstract: 471,956. Bracket tables. OPENSHAW, E. B. Aug. 15, 1936, No. 22513. [Class 52 (v)] A collapsable table 6 for use upon the back 10 of a motor car seat has pivoted to the sides close to the edge which makes contact with the seat back curved hanging brackets 9 formed of spring metal to embrace the top of the back, stop means being provided to maintain the table in the horizontal position. Each bracket has a half twist at 11 and is pivoted on a pin 14, the ends of the bracket engaging stops 15, 16 on metal strips 12 secured to the sides of the table to limit its movement. The brackets are covered with rubber and have buffers 18 to prevent damage to the upholstery, further buffers 19 are provided on the table, and the edge which contacts with the seat back is curved and provided with a rubber strip. A rim is provided around the table.
Patent GB-281783-A (GB)
Title: Improvements in or relating to paper or like sheet folding machines
IPC: B65H45/14
Filed: 1926-09-13
Abstract: 281,783. Canadian-American Machinery Co., Ltd., (Toronto Type Foundry Co., Ltd.). Sept. 13, 1926. Delivery apparatus.-A sheet-folding machine having parallel and cross-folding sets either of the budding or knife type or both, is adapted to deliver the sheets from any particular folder direct to a single delivery device which is fixed in one position relatively to the machine. As shown in Figs. 1, 4 and 5, the sheets pass from a feed-table 2 through buckling folders 5 ,6, 7 to a pivoted feed unit; comprising a guide 13, Fig. 4, and feed rolls 14, 15, which according to its position feeds the sheet either to a delivery belt 1 or to a cross-feeder 11 directing the sheet to a cross-feeder 16. From the folder 16, the sheet enters a feed unit, Fig. 5, comprising rolls 23, 24 and guides 21, 22, which is pivoted at 26 so as to direct the sheets either to the delivery belt 1 or to a cross-feeder 20, and can be secured in either postion by a bolt entering holes 28, 29 in the unit and framing respectively. The sheet is directed upwardly from the feeder 20 by guides 39 to the last cross-folder 36 from which the sheet issues through guides 40 on to the belt 1. In a modified arrangement, Fig. 9, the belt 1 is arranged parallel to and extends beneath the feed-table 2, in contrast to the previous arrangement in which the belt is at right angles to the feed-table. By this means, if a sheet has to receive one fold only, it may be delivered to the belt 1 through the stop plate 7 by removing the stop 7 as described in Specification 234,126. If the sheets pass through the folders 5, 6, 7 they may be directed to the cross feeder 11 by a guide 40 or the guide may be removed and the sheets allowed to pass between rolls 14<11>, 15<11> on to the belt 1. The guide 40 may be replaced by a pivoted two-way deflector. In the application of the invention to a machine employing both buckling and knife. foldlers, Figs. 10 and 11, the folders 5, 6, 7 and belt 1 are arranged as in Fig. 9, and the sheet after having received its parallel folds, proceeds on to the table 43 where it is cross-folded by the knife 44. After this fold, the sheet passes between rolls 45, 46 and can be directed either into a buckling folder 56 by means of a fixed guide 58 and pivoted guide 57, or into a blade folder 49 by pivoting away the guide 57 and moving a pivoted guide 47 into position as shown in Fig. 11, or it can be allowed to fall on to the belt 1 by moving both pivoted guides 47, 57 to their inoperative positions. The folded sheet passes direct to the belt 1 from either of the folders 49, 56. Any buckling folder may be rendered inoperative, if desired, by means of a deflector in the usual way.
Patent GB-449942-A (GB)
Title: Improvements in and relating to optical indicating devices
IPC: H03J1/04
Filed: 1935-08-12
Abstract: 449,942. Adjusting wireless apparatus. IDEAL WERKE AKT.-GES. FUR DRAHTLOSE TELEPHONIE, 9, Forckenbeckstrasse, Wilmersdorf, Berlin. Aug. 12, 1935, No. 22729. Convention date, Aug. 16, 1934. [Class 37] In order to provide a sharp indication of the tuning in radio receivers, an optical indicator of the kind in which energy received varies the length of a column of light has the luminous source provided with a frontal screen having a narrow slit therein, so that only a portion of the luminous column width is visible. The indicator 13 may be a discharge lamp, the screen being provided with walls 5, 6, and side projections 7, 8 for defining the position of the lamp with regard to the screen. The width of the slot 4 is less than one millimetre.
Patent GB-443954-A (GB)
Title: Improvements in or relating to electric discharge devices
IPC: H01J19/30
Filed: 1934-08-07
Abstract: 443,954. Discharge devices. M-O VALVE CO., Ltd., Electra House, Victoria Embankment, and JESSOP, G. R., c/o M-O Valve Co., Ltd., Brook Green, Hammersmith, both in London. Aug. 7, 1934, No. 22868. [Class 39 (i)] A discharge device is provided with a thermionic cathode and with an anode which, including that part exposed to the electrons, has an outer coating of copper or silver. A nickel anode may be coated by electroplating. The coating may be applied to the anodes of the diodes of a valve, e.g. a double-diodetriode, or to the inner grid-like member of an anode which may be used in power rectifiers and consists of an inner member, spirally wound, and an outer member connected together.
Patent GB-171146-A (GB)
Title: Improvements in fluid pressure operated percussive tools
IPC: B25D9/14
Filed: 1920-08-03
Abstract: 171,146. Vacuum Tool Co., Ltd., and Gawley, G. J. Aug. 3, 1920. Percussive hand tools.-The power piston a of a percussive tool is reciprocated by a vacuum and atmospheric pressure controlled by sleeve valves u, t arranged between the cylinder and an outer . casing divided into vacuum and atmospheric compartments n, m. The valves are actuated by tappets w, w<1>, v, v<1> and have ports u<1>, u<2>, t<1>, t<2> which register respectively with vacuum and atmospheric ports s, s', r, r'. At the end of the percussive tool is arranged a spring buffer x. The rising of the hammer block x<1> under suction is prevented by the ring x<2>.
Patent GB-652813-A (GB)
Title: Needles
IPC: D05B85/02
Filed: 1948-08-31
Abstract: 652,813. Sewing. BROWN, C. E. and SMITH, H. M. Aug. 31, 1948, No. 22937. Convention date, July 23 [Class 112] Needles. In order to facilitate threading, the eye of a sewing-needle is formed with laterally-spaced walls 4, 5, of which the former is continued to form a loop 6 lying against the latter; the thread T is introduced between the loop and the wall 5, the latter being sprung away as the thread enters the eye. In the form shown the end of the loop 6 lies against the wall 4, providing another resilient passage through which the thread is passed into the eye proper to prevent any disengagement. The Specification as open to inspection under Sect. 91 describes also an alternative form, the end of the loop 6 is spaced from the wall 4, but it is still made to point away from the needle point so that it cannot catch in the work. This subject-matter does not appear in the Specification as accepted.
Patent GB-536328-A (GB)
Title: A method of recovering oil from whale bones
IPC: C11B1/00
Filed: 1939-08-09
Abstract: 536,328. Extracting oils. AKTIEBOLAGET SEPARATOR, LEVER BROS. & UNILEVER, Ltd., and BOSTOCK, B. R. Aug. 9, 1939, Nos. 22971 and 22972. Convention dates, Aug. 16, 1938, and May 20, 1939. [Class 91] Oil is extracted from whale bones by a process which comprises boiling cut up raw material in rotary digestors, discharging the whole of the boiled mass from the digestor, subjecting the mass to one or more purifying operations to remove the majority of the coarse and fine solids, and centrifuging the purified product for recovery of the oil. If desired the boiled product may be subjected to a gravity separation before the purifying operations in order to remove the majority of the oil at an early stage. It is preferred to dilute the boiled material with hot water before filtering in order to break the emulsion and to liberate the oil. Purifying processes mentioned include a revolving or vibrating strainer having rather large holes, to remove the coarse particles of bone, and to remove the fine particles a centrifuge having an imperforate drum wall so arranged that the solids deposited thereon can be removed without stopping the centrifuge. The oil is removed from the glue water by means of a special oil centrifuge.
Patent GB-807773-A (GB)
Title: Improvements relating to scooters for children
Inventor: LINES WALTER
IPC: B21D39/02
Filed: 1956-07-25
Abstract: 807,773. Making scooters; bending; jointing by stamping. LINES BROS. Ltd. July 15, 1957 [July 25, 1956], No. 23019/56. Classes 83 (2) and 83 (4). [Also in Group XXXI] A method of securing a sheet-metal footplate 1 for a scooter to fore-and-aft tubular members 2 comprises wrapping the side edges of the footplate round the tubular members by a pressing operation. The edges are first bent at right angles to the remainder of the footplate and inwardly curved at the edges 4. The U-shaped footplate is placed in a die 3 with the tubular members arranged adjacent the upturned edges (Fig. 4). A die 5 having part-circular working surfaces 8, 9 is brought into engagement with the footplate to bend the edges around the tubular members and also to deform the members as shown in Fig. 5. Projections 11 on the die 5 indent the edges and the tubular members to prevent relative longitudinal movement.
Patent GB-587961-A (GB)
Title: Improvements in and relating to bobbins, formers and the like
IPC: H01F5/02
Filed: 1944-11-20
Abstract: 587,961. Bobbins. ASSOCIATED ELECTRONIC ENGINEERS, Ltd., and WESTCOTT, H. C. Nov. 20, 1944, No. 23040. [Class 120 (iii)] A bobbin for electric coils, &c. of polygonal, circular or other section, comprises a sleeve built up of a plurality of longitudinal sections. Some sections are outwardly grooved from edge to edge to engage the edges of the cheek apertures the width of the grooves being equal to the cheek thickness, and the remaining sections are slid into position, the joints between adjacent sections being of suitable form, e.g., stepped or bevelled, to prevent any inward radial movement of sections when assembled. In one form with rectangular cheeks and core, Figs. 1 and 2, the end cheeks 7 engage grooves 11 on the outer surfaces of two rectangular core sections 9, and the remaining two core sections 10 are slid into position between the steps 12 formed along the inner edges of sections 9. In another form with circular cheeks and core, Figs. 5 and 6, the core sections 18, 19 are arcuate, each covering an angle of 90 degrees, and the surfaces of contact between adjacent sections are in radial planes. All contacting surfaces may be treated with adhesive. Intermediate cheeks may be mounted similarly to the end cheeks, or may be merely a sliding fit on the core. The bobbin may be made of any suitable rigid sheet material, for example synthetic resin, wood or vulcanised fibre.
Patent GB-1423686-A (GB)
Title: System for generating orthogonal control signals to produce  curvilinear motion
IPC: G05B11/06
Filed: 1973-05-15
Abstract: 1423686 Interpolators HUGHES AIRCRAFT CO 15 May 1973 [16 May 1972] 23138/73 Heading G4A Orthogonal components of curves, to be displayed for computer aided design, or for guidance of a laser beam cutting textiles, are developed on the basis of digital elliptical interpolation using a pre-chosen one of a set of possible given initial data defining the interpolation. Facility is provided to rotate by a quarter turn and reflect the interpolated curve, to rotate it through a general angle, scale it, or offset it. A set of parameters JKLM are derived from initial conditions and multiplied by sine and cosine functions of time to form the digital interpolation in the form Digital converter 14 derives the parameters JKLM from initial data in one or other of the forms, I: beginning and end points and corresponding slopes (P 0 , P 1 , S 0 , S 1 ) converter 14 having the logical configuration of Fig. 3 (not shown) performing disclosed algebraic analysis to derive values for JKLM; II: Points (P 0 , P 1 , P 3 ) and slope (S 1 ), Fig. 4 (not shown); III: Points (P 0 , P 1 , P 3 ), slope (S1) (Fig. 5); IV: Points (P 0 , P 1 , P 3 ) slope S 3  (Fig. 6); V: Points (P 0 , P 1 , P 2 ), point (P 2 ) being that farthest from a line joining (P 0 ) and (P 1 ) (Fig. 7). Unit 16 processes the signals JKLM, X 0 , Y 0  to provide the interpolated values X(t), Y(t) Fig. 8 (not shown). There may be control of velocity and acceleration, Fig. 9 (not shown). Stepping motor drives are used when a process is controlled by X(t), Y(t). Transformation, and storage, of interpolations, Fig. 10.-The particular initial conditions having been selected by control 364, the JKLM data is fed to unit 366, where one of the possible transformations is selected by control 382 to produce transformed parameters J<SP>1</SP>K<SP>1</SP>L<SP>1</SP>M<SP>1</SP>. Figs. 11-14 (not shown) illustrate the transformation circuitry for the above stated transformations. Facility is provided to clip the display at maximum and minimum values, so that X, Y values outside these limits are not displayed. Non-displayed trajectories are followed at a maximum velocity to save time. To avoid re-calculating interpolations, they may be stored with a corresponding address in unit 400, for recall as needed. Software embodiments.-A computer program, Fig. 18 (not shown) may be provided for computer (552), Fig. 17 (not shown), and transformation unit (554) supplying transformed parameters to generator (568) of the interpolation. Facility is provided to match a set of interpolations for slope at end points, to provide a complete curve. Interpolation may be in two dimensions, or in three, Fig. 19 (not shown), facility being provided to rotate the data about predetermined X, Y and Z angles (#, #, #) in a given sequence, the system working in multiplex. Signals X(t), Y(t) may be used by CRT devices, digital plotters or a numerically controlled tool system.
Patent GB-299143-A (GB)
Title: Improvements in table utensils
IPC: A47G19/26
Filed: 1927-09-03
Abstract: 299,143. Nicholson, H. Sept. 3, 1927. Cruets and condiment receptacles; sugar basins; salad bowls.- -Table utensils such as sugar bowls, butter dishes, or utensils for holding jams, jellies or other preserves, salads, fruits or confections, are provided with covers supported from the periphery of the bowl by uprights so as to provide openings around the vessel between the dish and cover through which the contents may be extracted. The cover 4 may, as shown, be supported, detachably or otherwise, by uprights 6 on a frame 8 which may be fixedly or removably attached to the dish 3. The uprights of the frame supporting the cover may be hinged or telescoped so that the cover may be) lowered on to the dish.
Patent GB-824887-A (GB)
Title: Improvements in flasher units for motor vehicles
IPC: B60Q1/38
Filed: 1957-07-23
Abstract: 824,887. Flashing direction indicators. DIRKS, F. July 23, 1957 [July 23, 1956; Aug. 28, 1956], No. 23241/57. Class 118 (2). A flasher unit for motor vehicles with a built-in clock, wherein the flash contacts are operated by a wheel of the mechanism of the clock. The make-and-break contacts may be used to flash direction indicating lights at the front and rear of the vehicle, the head lamps both left and right operating together for warning purposes, and the brake lamps, and in addition the horn to give warning, e.g. if the car is parked on a main road due to a breakdown. As shown, Fig. 1, the contacts 6 are opened by the rotation of wheel 4 of the clock. Current from the battery 7 flows via make-andbreak contacts 6 to wire 13 and thence to direction indicator switch 8 which can make contact with left turn indicators 9 and 10 or right turn indicators 11 and 12. Switch 14 connects the flashing current to brake lights 15 and 16 while switch 18 is for the brake pedal operated stop warning light. The head lamps are supplied from the battery via switch 23 which when connected to conductor 21 operates the dipped beam filaments 19a and 20a and when connected to the right-hand conductor 22 operates the normal beam filaments 19b and 20b. If the head-lamps are operating, the closure of switch 24 breaks contact 26, 27 and makes contact 26, 28, thereby ensuring the continuous flow of current to the dipped beam filaments 19a and 20a while current from make-and-break contacts 6 through switch 24 flows to conductor 22 and thence flashes the normal beam filaments 19b and 20b.
Patent GB-316976-A (GB)
Title: Means for supplying a number of cigarette making machines with tobacco
IPC: A24C5/39
Filed: 1929-07-30
Abstract: 316,976. Universelle Cigarettenmaschinen-Fabrik J. C. M³ller & Co. Aug. 7, 1928, [Convention date]. Cigarette-making machines. - Tobacco pneumatically conveyed through the manifold a is diverted as required to any of the machines A, B, C. A blower b supplies the air for carrying the tobacco introduced at the hopper c. Pipes e branch from the manifold a to dust-separators d and hoppers h, the dust-laden air passing to an exhaust pipe f. Flapvalves i close the hoppers h and when opened complete electric circuits r, s, to an indicator, in conjunction with which there is a switch t controlling electromagnets q, Fig. 3. The armature p when a magnet is energized moves a flap valve to move the main conduit a and to divert the tobacco stream into the branch e and appropriate hopper h. A spring n opposes the magnet q and closes the passage e unless the material is to be passed therethrough.
Patent GB-424211-A (GB)
Title: Improvements in or relating to electric discharge lamps
IPC: H01J17/00
Filed: 1933-08-22
Abstract: 424,211. Discharge lamps. STEVENS, A. H., 5, Quality Court, Chancery Lane, London.-(National Television Corporation; 100, West 10th Street, Wilmington, Delaware, U.S.A.) Aug. 22, 1933, No. 23364. [Class 39 (i)] A lamp for television &c., has a filling of gas and metal vapour and a restricted and elongated discharge path 61 between the electrodes, one of which consists of an openwork structure and encloses across-sectional area greater than that of the discharge path. For continuous-current working, the anode 66 consists of a cap of pressed nickel and the cathode 72 consists of a strip of wire mesh wound on the support 70 ; the internal diameter of the cathode may be greater than that of the support. For alternating - current working, a wire-mesh anode may be used. Dimensions of the electrodes and of the glass or quartz bulb, and values of current and voltage are given in the Specification. The electrodes may be formed of molybdenum, iron, tantalum, tungsten, and the material known under the Registered Trade Mark " Monel." The filling may comprise gases such as neon, argon, helium, krypton, xenon and a vapour such as mercury, rubidium, caesium or sodium; it may consist of neon at 10 mm. and mercury. For starting, the electrodes are connected through a spark gap 80 to a source of high-frequency currents which comprises an interrupter 82, a switch 84 and a battery 83.
Patent GB-937338-A (GB)
Title: Asphaltic bitumen compositions having improved weatherability and a process for the preparation of such compositions
IPC: C10C3/02
Filed: 1962-06-18
Abstract: A product for use in a bituminous composition and having a C/H ratio of 0,72-0,89 and a molecular weight of 3,500-15,000 is produced by reacting naphthenic asphaltene and paraffinic malthene in the presence of a peroxide at 110 DEG -160 DEG C. for 2-8 hours.  The peroxide may be hydrogen peroxide; tert-butyl and n-hexyl hydroperoxide; and di-isopropyl, di-n-butyl, di-tert-butyl, and di-octyl peroxide. 3-7,5% of peroxide may be employed.  The ratio of naphthenic asphaltene to paraffinic malthene may be 1:4 to 3:2.  The naphthenic asphaltene may be in the form of naphthenic asphalt or may be an isopentane-insoluble fraction having a C/H ratio of 0,88-0,93 and an average molecular weight of 1,500-2,000.  The paraffinic malthene may be in the form of a paraffinic asphalt or an isopentane-soluble fraction having a C/H of 0,6-0,7.  The asphalt may be straight run, cracked, or blown.  Only the isopentane-insoluble fraction of the reaction may be used, the isopentane-soluble fraction being subjected a second time to the peroxide treatment.ALSO:An asphaltic composition comprises lubricating oil cutter stock and the reaction product of naphthenic asphaltene and paraffinic malthene (see Group III).  The composition may also comprise straight run, blown, or cracked asphalt.  The proportion of the reaction product may be 35-70%.  The cutter stock may comprise 0-60% of aromatic extract and 40-100% of raffinate.
Patent GB-847654-A (GB)
Title: Improvements in or relating to the smelting of ores
IPC: C21B13/10
Filed: 1956-07-30
Abstract: 847,654. Iron manufacture. GENDERS, R., and KEMMISH, W.B. July 30, 1957 [July 30, 1956], No. 23450/56. Class 72 [Also in Group XII] Ore is reduced by passing air horizontally through a bed of coke and the reducing gas so formed below and in contact with an adjacent charge of ore, carbonaceous material and flux. From hoppers 22 and 24 which are normally sealed to prevent the escape of gas, are supplied coke adjacent to air blast inlet 14 and a mixture of ore, carbonaceous fuel and flux adjacent to gas outlet 16. Slag and metal are tapped at 18 and 20. A dividing wall 26 extends into the furnace chamber to keep the coke and ore mixture to their respective sides of the furnace, and water cooling pipes protect outlet 16. The air blast may be preheated by recuperation or regeneration of heat from the waste gases and it may also be oxygen enriched. This type of furnace may be used for the production of ferro alloys or for the smelting of phosphate ores.