baber/WOPTO huggingface dataset:
Patent GB-397435-A (GB)
Title: Process for the preparation of monochromates and dichromates
IPC: C01G37/14
Filed: 1933-04-27
Abstract: In the manufacture of chromates or dichromates by oxidizing chromium oxide or hydroxide or chromium ores in an aqueous medium at temperatures above 100 DEG  C. under pressure any other substances capable of yielding alkali or alkaline-earth during the reaction are used in place of or together with the alkali or alkaline-earth hydroxides, carbonates, or bicarbonates previously used.  In the manufacture of dichromates, the alkali &c. yielding substance may also replace the monochromate previously used.  The alkali &c. yielding substance may act also as oxidizing agent during the reaction, and mixtures of substances which yield alkali only and which both yield alkali and act as oxidizing agents may be employed. Specified substances which may be used are alkali or alkaline-earth sulphates, chlorides, phosphates, acetates, silicates, aluminates, nitrates, chlorates, persalts, manganates, and permanganates.  In examples relating to the production of dichromates at 280-290 DEG  C. in the presence of oxygen, anhydrous sodium sulphate with or without calcium carbonate, trisodium phosphate, sodium silicate, and potassium nitrate with calcium carbonate, are used.  Monosodium phosphate and calcium nitrate respectively are also obtained when sodium phosphate and potassium nitrate with calcium carbonate are employed.  When using potassium chlorate with calcium carbonate and with or without caustic potash, no external supply of oxygen is needed.  In examples relating to the production of monochromates at 150-350 DEG  C. in the presence of oxygen, anhydrous sodium sulphate with calcium carbonate or lime, or trisodium phosphate may be used, disodium phosphate being obtained also in the latter case.  When using potassium chlorate with magnesium oxide at a temperature of 290-300 DEG  C. no external supply of oxygen is needed.
Patent GB-1370765-A (GB)
Title: Filter
IPC: A24F13/06
Filed: 1973-03-14
Abstract: 1370765 Cigarette holder AQUAFILTER CORP 14 March 1973 [21 April 1972] 12339/73 Heading A2M A holder of the kind disclosed in Specification 930253, containing a water impregnated fibrous filter mass 21, is provided with a removable cap 22 at its socket end and with a removable covering 32 at its mouthpiece end comprising a film of tearable plastics material having a minute hole 34 formed therein in communication with the interior of the holder. The hole 34 permits the escape of air while water is being introduced into the holder through the socket end.
Patent GB-102908-A (GB)
Title: Artificial Legs.
Inventor: DUNSTAN GEORGE EDWIN
IPC: A61F2/50
Filed: 1916-08-31
Abstract: 102,908. Dunstan, G. E., and Babcock, E. W. Aug. 31, 1916. Limbs, artificial.-An artificial foot comprises inner and outer members pivoted together at the forward end, resiliently supported at the heel, and provided with a resilient toe-piece. The inner member 2, formed integrally with the leg portion 1, is pivoted at 12 to the outer member 5, around which is pivoted the toe-piece 11 kept in normal position by a spring 16. The outer member is formed, near the heel, with a boss 21 into which is screwed a tubular plug 22 enclosing a spring 18, the upper end of which presses against a bar 19 connecting the front and rear of the inper member. Adjustment is effected by screwing the plug 22 in or out, and the inclination and upward movement of the inner member with relation to the outer member is controlled by a set-screw 25.
Patent GB-548688-A (GB)
Title: Improvements in or relating to strip-feeding mechanism for controller or record-strip preparing or composing machines
IPC: B41B25/00
Filed: 1941-09-24
Abstract: 548,688. Printers' composing-machines. MONOTYPE CORPORATION, Ltd. (Lanston Monotype Machine Co.). Sept. 24, 1941. No. 12346. [Classes 100 (i) and 100 (iii)] Strip-perforating machines. Relates to feeding and guiding means for the paper strip. The shaft A, Fig. 2, of the paper roll B is guided in slots in the paper-tower frame, and the roll rests on an antifriction roller A<SP>1</SP>. The strip is drawn from the roll over a sprinpressed tension-bar C and passes around a punch-die cylinder D to a winding-spool F. The strip is guided around the cylinder D by a curved tension-plate E, Fig. 5, which is pivoted at its lower end and is held in either the operative position shown, or in an inoperative position, by a spring E<SP>1</SP>. The plate E carries a spring-pressed roller E<SP>4</SP>, which presses the strip against the cylinder. A filler-plate E<SP>9</SP>, Fig. 6, pivoted to the tensionplate E, projects into the space between the diecylinder D and the punch-guiding frame G<SP>1</SP>. The plate E<SP>9</SP> is formed at the edge with teeth E<SP>10</SP>, between which the punches pass. The strip is fed over the die-cylinder D by pinwheels on a shaft D<SP>1</SP>, Fig. 4, which is rotated by ratchet-mechanism from a driving-rod D'. The feeding and holding pawls D<SP>8</SP>, D<SP>10</SP> can be disengaged by a rotatable cam-plate D<SP>15</SP>, which is operated against the pull of a spring D<SP>23</SP> by a fincer-lever D<SP>16</SP>. The cam-plate is latched in active position, and is released by the next operation of the rod D<SP>4</SP>. An adjustable stop is provided for the holding-pawl D<SP>10</SP>. The ratchet feed-mechanism for the winding-spool F is operated by a rod F<SP>6</SP> from the driving-rod D'. The feeding and holding pawls of the spool F can be disengaged by a hand-operated plate F<SP>12</SP>. The shaft D<SP>1</SP> and the shaft F<SP>1</SP> of the winding-spool are mounted in spaced bearings located near the end of the shafts, so as to leave the winding- spool and the die-cylinder unobstructed at one end. The punchings are removed from the die-cylinder by vanes H, Fig. 5, on the feed-shaft, which propel them towards the end of the cylinder. The punchings fall down a vertical tube into a receptacle. The tube can be cleared by a pusher worked by the operator.
Patent GB-568742-A (GB)
Title: Improvements in or relating to homogenising or emulsifying apparatus
IPC: B01F5/00
Filed: 1943-07-30
Abstract: 568,742. Shaft couplings. DUSSEK BITUMEN & TAROLEUM, Ltd., HATT, E. R., and NORTON, C. W. July 30, 1943, No. 12380. [Class 80 (ii)] [Also in Group III] In homogenising or emulsifying apparatus wherein a casing contains a rotor comprising two similar axially adjustable parts, one or each rotor part is mounted on a sleeve adapted to rotate with the driving shaft and extending outside the casing, the outer end of each sleeve being mounted in an axially adjustable bearing, so that adjustment may be made without dismantling the apparatus. In Fig. 1, both halves of the rotor 2 are connected to sleeves 3 which are keyed to the driving shaft 4 and have their outer ends mounted in thrust and journal bearings 9, carried in housings 11. Axial movement of the sleeves is effected bv rotating adjustment rings 12, which are locked in position by members 13 and may be calibrated. The driving pulley 14, or a prime mover such as an electric motor, is mounted on the shaft between the adjustable bearing and the end support for the shaft. Fig. 3 shows the construction with only one sleeve. The rotor half 2a is directly keyed to the shaft and is adjustable through housing 11a. The other rotor half 2b is keyed to the sleeve 3a and is adjusted at 11. In this modification, the inner face of the rotor part 2a carries projecting dowel pins 16 which engage in sockets 17 in part 2b, but permit relative axial movement of the two halves of the rotor.
Patent GB-1472021-A (GB)
Title: Dyeing of polyester fabric
IPC: C09B31/043
Filed: 1975-03-25
Abstract: 1472021 Disazo dyes CASSELLA FARBWERKE MAINKUR AG 25 March 1975 [26 March 1974 21 Dec 1974] 12409/75 Heading C4P [Also in Division D1] Dis-azo dyes of formula in which R<SP>1</SP>, R<SP>3</SP> and R<SP>4</SP> which may be the same or different are lower alkyl up to 4 carbon atoms or lower alkenyl group, R<SP>2</SP> is hydrogen, halogen, lower alkyl, lower alkoxy or lower alkenoxy group, X is hydrogen, chlorine, bromine, nitrile or nitro, and Y is hydrogen, chlorine or bromine are prepared by diazotization of a compound of formula and coupling with an amine of formula The dyes give blue shades on polyester materials.
Patent GB-1117045-A (GB)
Title: Improvements in remote indicating systems
Inventor: SHORROCK STANLEY
IPC: G01F23/36
Filed: 1966-03-22
Abstract: 1,117,045. Liquid level indicating. SHORROCKS DEVELOPMENTS Ltd. 31 Oct., 1966 [22, March, 1966], No. 12433/66. Heading G4H. [Also in Division H4] A calling subscriber is connected via the exchange network to an unattended measuring instrument -and receives a spoken message of the reading or condition of the instrument at the time. The instrument controls according to the reading or -condition the selection for connection to the exchange line of one of a number of pick-up heads each co-operating with a track on a magnetic or optical recording medium, each track containing a pre-recorded message relating to one possible reading or condition of the instrument. Upon receiving a call the line is looped, the appropriate pick-up connected and the record medium driven to deliver the message one or more times. The monitoring by the instrument of water levels, voltages and motorway conditions is mentioned.
Patent GB-1089016-A (GB)
Title: Electro-optical digital system
IPC: H03K3/42
Filed: 1965-03-24
Abstract: 1,089,016. Laser circuits. RADIO CORPORATION OF AMERICA. March 24, 1965 [April 8, 1964], No. 12522/65. Heading H1C, [Also in Divisions G1 and H3] An electro-optical logic device includes a circuit having two current states, a laser connected to receive an amount of current determined by the state of the circuit, and means for changing the circuit from one state to the other. A tunnel diode 10 is connected in parallel with laser diode 14 so that when the tunnel diode 10 is in its low voltage, high current state, laser diode 14 receives a current below its laser threshold, but when tunnel diode 10 is switched to its high voltage, low current state, laser diode 14 emits laser radiation 21 which is amplified by a laser diode 20 and transmitted to a beam splitter 25. The state of tunnel diode 10 is controlled by back-biased photodiodes 18. In an OR-gate, illumination of any photodiode 18 increases the current flowing through tunnel diode 10 sufficiently to switch it. In an AND- gate illumination of all the photo diodes is necessary to cause switching. Inductor 12 determines the time constant of the monostable circuit. In an inverter, the laser diode is connected in series with the tunnel diode, and an ordinary back-biased diode is connected across the series arrangement. A bi-stable circuit, Fig. 6 (not shown) includes both a series-connected and a parallel connected laser diode, and set and reset back-biased photodiodes conrected respectively to positive and negative bias sources, and in common to the anode of the tunnel diode. The inductor is replaced by a resistor, and a further bias source and the resistor constitute a constant current source.
Patent GB-111864-A (GB)
Title: Improvements in or relating to the Production of Liquid Fuel suitable for use in Internal Combustion Engines.
Inventor: O'BRIEN JOHN MACKENZIE
IPC: C10G17/06
Filed: 1916-09-05
Abstract: 111,864. O'Brien, J. M. Sept. 5, 1916. Oils and spirits for burning.-A liquid fuel is prepared by treating paraffin oil with strong sulphuric acid, bleaching-powder, and petroleum ether. The mixture is agitated and allowed to stand, and the oil is then run off and filtered. The fuel may be refined by mixing it with dry precipitated silicic acid till a creamy emulsion is formed and a product is obtained, which, after filtration, can be burnt in the open air on a metal pan without leaving any residue. The liquid fuel can be used in admixture with motor spirit or petrol as a fuel for internal-combustion engines.
Patent GB-1496444-A (GB)
Title: Shelf support joints
IPC: A47B57/40
Filed: 1975-03-26
Abstract: 1496444 Shelving DULA-WERKE DUSTMANN & CO 26 March 1975 [29 March 1974] 12594/75 Heading A4B [Also in Division F2] A shelving construction comprises spaced posts 1 inter-connected by cross-members 4 serving as shelf bearers, each post 1 having slits 2 selectively engaged by hooks 3 carried by a U-shaped fitting 5 slideable axially in an end of a cross-member 4, the construction including a wedge 8 which is engaged between the base 6 of the fitting 5 and a facing surface 7 of a bar 15 fixed to the crossmember 4 such that, when the wedge 8 is driven in, the fitting 5 is drawn into the cross-member 4 to clamp the cross-member 4 to the post 1. The wedge 8 has a guide slot 9 engaged by a fixed pin 10 extending across the fitting 5. A hole 11 in the wedge 8 facilitates its withdrawal. An auxiliary wedge 12, Fig. 6, may be engaged through slots 13, 14 in the cross-member to bear on the side of the fitting 5 remote from the hooks 3.
Patent GB-367634-A (GB)
Title: Improvements in hat presses
IPC: A42C1/04
Filed: 1931-04-29
Abstract: 367,634. Blocking hats. DEMNITZ, A., 4, Liehrstrasse, Laubegast, Dresden, Germany. April 29, 1931, No. 12638. Convention date, June 7, 1930. [Class 63.] In a hat-blocking press of the kind in which a rising and falling cover c carrying a pressing bag d of resilient material co-operates with a hat mould b, the locking of the parts in operative position, and the unlocking them at the conclusion of the pressing operation is automatically performed by members pivoted to the cover and actuated by levers i pivoted to the cover and the support l for the cover. The support l is carried by a beam m secured to the piston rods n of cylinders o supplied with compressed air from a valve p, also supplying the interior of the cover c. When the pressing operation is complete, the valve p is turned to release the pressure cover and to supply the cylinders o. As the plate l begins to rise, the members g are swung so that adjusting screws h at their ends disengage the mould. Further rise of the beam m raises the cover to allow the workpiece to be changed. Reversing the valve p lowers the cover and locks it. The mould is heated by gas burners t. In a modification, a number of presses are carried by a rotary frame. The central column of the frame may carry an air-distributing valve for opening and closing the presses in turn as they approach and leave the operator's position. The rubber bag d may be partly filled with water.
Patent GB-738688-A (GB)
Title: Improvements in or relating to processes for the production of a mass of hardening structural material for the manufacture of tubes, plates or the like
IPC: C04B28/02
Filed: 1953-05-06
Abstract: Hardening shaped members are produced by adding dry cement to a suspension of one part of short-fibred chrysotile asbestos having a maximum fibre length of 0.5 mm. in at least 20 parts of water and added material, the proportion of the short-fibred asbestos being between 1.5 and 6.0 per cent by weight of the remaining dry ingredients.  Long-fibred asbestos, mineral wool, slag wool, glass wool and cellulose may be added separately or in admixture.  The suspension may be obtained by grinding chrysotile asbestos with 20-50 parts of water in ball mills or hollanders until a slimy mass is obtained, alternatively a heater may be used.  The asbestos in the suspension preferably amounts to 2 to 6 per cent by weight of the dry mixture.  In examples 90 Kgs. of cement are mixed with either 8 Kgs. long fibred, or medium fibred asbestos or slag wool, and 2 grams of finely ground asbestos added in 50 or 55 litres.  In a further example 48.5 Kgs. of cement and 48.5 Kgs. of sand are mixed with 70 litres of suspension containing 1.5 Kgs. of very finely ground asbestos.)
Patent GB-678763-A (GB)
Title: Improvements relating to racks for cooling bread
IPC: A21C9/08
Filed: 1950-05-22
Abstract: 678,763. Racks; sliding shelves. SEVILLE, J. R. April 27, 1951. [May 22, 1950] No. 12739/50. Classes 52 (i) and 52 (iii). [Also in Group VI] A rack for holding loaves while cooling has sliding shelves a the underside of which carry separators e for the loaves on the next lower shelf The rear parts of the runners g are removed so that on withdrawal the shelf can tilt downwardly about trunnions h clear of the depending separators to facilitate removal of the loaves.
Patent GB-880858-A (GB)
Title: Bis azo dyes
IPC: C09B31/043
Filed: 1960-04-11
Abstract: The invention comprises dyes of formula <FORM:0880858/IV (c)/1> where R is H, Cl or CF3, R1 is Cl or Me and R2 is H or NO2 but R and R2 are not both H.  The dyes are made by conventional methods and are used for the direct dyeing of polyolefinic materials.  Preferred dyes are (1) R is CF3, R2 is H and R1 is Me, (2) R is Cl, R2 is H and R1 is Cl and (3) R is H, R2 is NO2 and R1 is Me.  Examples are provide of the preparation of the preferred dyes.
Patent GB-636042-A (GB)
Title: Improved method of, and means for, grinding lenses or other articles having surfacesof compound curvature
IPC: B24B13/04
Filed: 1947-05-12
Abstract: 636,042. Grinding and polishing. ABBEY, A. (American Optical Co.). May 12, 1947, No. 12798. [Class 60] In a method of, and apparatus for, generating compound surfaces such as those of a toric lens, the lens 6 is rotated about a first fixed axis in contact with a rotating cup-like tool 31 and the tool is tilted about a second fixed axis normal to and intersecting the axis of rotation of the lens, the tilting movement and the lens rotation being synchronized so that the tool assumes a given angle of tilt in one major axis of the lens and assumes another given angle of tilt in the other major axis of the lens. The lens 6 is secured by an adhesive to a holder 5 on a shaft 4 splined to a gear 17, and cutting feed is applied by a weighted lever 11 engaging an adjustable stop 10 which reads against a scale 9. A motor 16 drives the gear 17 through reduction gearing and, through a belt drive 38 maintained taut by a jockey pulley 57, also rotates the shaft 32 carrying the tool 31. The shaft 32 is journalled in a bracket 35 pivoted on the machine frame, the pivot 36 being co-axial with the centre of the semicircular abrading surface of the tool and intersecting the axis of the lens shaft 4. The bracket 35 is tilted by a swash-plate 21 which is pivotable on a shaft 20 driven from the gear 17 and is engaged by a slide 52 loaded by a spring 53 and connected to a lever 41 having a link 40 joining it to the bracket. As shown in Fig. 1, the shaft 32 is vertical in one major axis of the lens and a flat surface is formed on that axis, but rotation of the swash-plate will tilt the shaft 32 to the right in the direction of arrow.56 to produce a concave surface, Fig. 8C, on the other major axis at right angles to the first axis. If the angle of the swash-plate to its shaft 20 is increased by re-setting a collar 25 against a scale 30, the shaft will tilt to the left beyond the vertical in the direction of arrow 55 and will produce a convex surface, Fig. 8B, on the first axis of the lens. By using a smaller swash-plate, the whole of the tilting movement may be made to take place to the left of the vertical position so that the surfaces in both axes are convex. The swash-plate may be circular or may be elliptical or other shape in order to vary the rate of change between the two curves. The initial tilt of the tool for any setting of the swash-plate can be adjusted to give the required basic curve by variation of the lever arm of the lever 40 through adjustment of a sliding pivot 48<SP>1</SP> against a scale 47.
Patent GB-1495596-A (GB)
Title: Lifting hooks
IPC: B66C1/36
Filed: 1975-03-27
Abstract: 1495596 Hooks J-F ARCHER 27 March 1975 [29 March 1974 17 March 1975] 12811/75 Heading E2A A hook has; a mousing piece 2 pivotally mounted on its body for movement between an operative position, Fig. 1 and an inoperative position, Fig. 2; an eye 16 rigid with the body; a projection 15 on the eye, which prevents the introduction of a member larger than distance between the tip 13 of the hook and the mousing piece in its inoperative position. The mousing piece 2 is U-shaped to conform to the shape of the adjacent hook body which is recessed to accommodate the mousing piece. The mousing piece is biassed to close the hook by a spring 8. The tip 13  is enlarged in the direction normal to the plane of the hook and has bosses 12 to protect the mousing piece in use.
Patent GB-1498113-A (GB)
Title: Data reader
IPC: G06K7/016
Filed: 1975-03-27
Abstract: 1498113 Data reader J HENGSTLER KG 27 March 1975 [30 March 1974] 12821/75 Heading G4M A reader for a punched card 1 such as an identity card has a line of optical sensors 5 responsive to data holes 4 on the card and a line of sensors 8 responsive to the leading edge of the card. When the first edge sensor 8 detects the card edge the first data line is sensed by the data sensors 5. Edge sensor 1 sets a respective flipflop which produces a signal Q# feeding an exclusive OR gate 11 supplying a timing circut t which produces a single short pulse W. The flip-flops set by respective clock sensors feed a decoder producing a binary address signal CBA supplied to a memory 12 so that the first line of data is read into an addressed memory at pulse W. The next clock sensor sets a further flip-flop which addresses a further memory location and causes a further pulse W to be produced. When the last flip-flop is set an end of record signal F is produced. Data can then be read from memory 12. A circuit formed of cascaded exclusive OR gates is described for determining parity (Fig. 4, not shown) and for checking validity, i.e. detecting a predetermined word.
Patent GB-611354-A (GB)
Title: Improvements in and relating to internal combustion engines of the compression ignition type
IPC: F02M67/00
Filed: 1946-04-29
Abstract: 611,354. Diaphragm pumps. CHAPMAN, C. W. April 29, 1946, No. 12873. Drawings to Specification. [Class 102 (i)] [Also in Group XXVII] In a compression-ignition engine, liquid fuelis supplied by a spring-pressed diaphragm pump, operated by the air inlet-valve rocker, a collar being provided on an extension of the operating rod to stop fuel flow if the engine stops with the fuel valve open.
Patent GB-1457963-A (GB)
Title: Wheels
IPC: B60B33/00
Filed: 1974-03-22
Abstract: 1457963 Moulding wheels PEMCO-KALAMAZOO Inc 22 March 1974 [16 April 1973] 12895/74 Heading B5A [Also in Division B7] A tyred wheel has a hollow body 13 of moulded synthetic resin material, e.g. A.B.S., comprising a central cylindrical sleeve portion 18-18A, a cylindrical outer peripheral portion 21-21A, and generally radial side wall portions 19 connecting corresponding ends of the portions 18- 18A and 21-21A, the ends of the peripheral portion 21-21A being provided with grooves 24, 24A opening axially and radially of the body to receive flanges 32, 33 of a channel-section solid tyre 31 of synthetic resin material, e.g. polyurethane, which has been moulded around the body so as to be bonded thereto. The body 13 may be provided with circumferentially spaced stiffening webs extending radially between the sleeve 18-18A and peripheral 21-21A portions, and a tubular metal axle 11 may be fitted in the bore of the sleeve portion. The body may be formed from identical halves 16, 17 in mirror-image relationship, which may be held together merely by the action of the tyre 31 moulded to the body, or alternatively may be secured together by adhesive or by spinwelding. Moulding of the tyre 31 on to the body 13 may be effected by placing the abutting joined or unjoined body halves 16, 17 in a two part mould which together with the body defines an annular cavity around the periphery of the body, and then injecting the synthetic resin material for the tyre into the cavity.