baber/WOPTO huggingface dataset:
Patent GB-1249502-A (GB)
Title: Automatic indexing tool block
IPC: B23Q16/10
Filed: 1969-02-05
Abstract: 1,249,502. Indexing. SFM CORP. 5 Feb., 1969 [12 Feb., 1968], No. 6184/69. Heading B3T. An automatic indexing tool block assembly comprises a housing 3, a clamping and index shaft 11 mounted for rectilinear reciprocal movement and pivotal movement between index positions, a tool block 7 mounted on the shaft 11, a first coupling member 9 also mounted on the shaft 11, a fixed second coupling member 12 engageable with the member 9 to hold shaft 11 against pivotal indexing movement when the shaft is in a retracted position, a first pneumatic motor 13 to move the shaft rectilinearly, a second pneumatic motor 22 to pivot the shaft between index positions, the first motor being arranged in controlling relation to the second motor whereby the latter is actuated only upon movement of the shaft out of a retracted position to thereby disengage the coupling members 9 and 12. To ensure correct indexing, member 9 has a finger 50 which fits into one of several recesses in member 12, the finger will stop the shaft 11 from being fully retracted if it has not been indexed correctly. The shaft 11 is moved rectilinearly via a rack 14, a gear 15 and a gear segment 16 which is mounted on a yoke 17 connected to links 20 which are pivoted to a thrust bearing 110. Motor 22 rotates the shaft by a rack 23 and pinions 24, 26. Correct sequence of operations is initiated by a switch which starts motor 13 so that shaft 11 is moved to disengage members 9 and 12. Opposite rack 14 is a rack 14<SP>1</SP> which drives a gear 32-which has a spring-biased finger 33 pivoted to the gear which drives a gear 34 in the manner of a ratchet. Gear 34 drives shaft 36 on which a cam 35 is mounted. The cam operates a spring-biased valve push-rod 37 so that pilot valve 39 is operated to start motor 22. This valve is not activated until after a certain movement of rack 14<SP>1</SP>, by which time members 9 and 12 have been disengaged. When shaft 11 is suitably indexed, one of the switches 47 and 48 is activated to cause motor 13 to reverse and retract shaft 11. The switch to be operated depends on which tool 5 or 6 is in an operative position. If indexing is not correct, finger 50 stops shaft 11 from being fully retracted so that a switch 57 is not operated, the switch being an interlock arranged in controlling relation to a machine drive, whereby the machine on which the assembly is mounted will not feed until the switch is closed.
Patent GB-1463775-A (GB)
Title: Apparatus for processing liquid-containing substance mixtures particularly cellulose pulp
IPC: D21C9/10
Filed: 1975-02-13
Abstract: 1463775 Washing or bleaching cellulose pulp SUNDS AB 13 Feb 1975 [14 March 1974] 6191/75 Heading D1L [Also in Division B1] Cellulose pulp is washed or bleached by passage upwardly through container 1 provided with perforated or slotted hollow screen bodies 9 extending radially from central body 5 to the wide upper periphery 3 of the container, the screen bodies 9 having cavities 12 therein (see Fig. 3) for collection of liquid separated from the pulp, the liquid then draining along the bottom 11 of the cavities to central body 5 from which the liquid is discharged via hollow supports 8. Washing liquid is supplied from apertures 16 in radially extending pipes 13 or wedge-shaped conduits (50) [Fig. 9 (not shown)] in between the screen bodies 9. Pressurized air is supplied intermittently via line 20 to each cavity 12 to prevent clogging of the perforations therein. Similarly pressurized liquid is supplied intermittently to pipe 13. During pressurization of the screen bodies by air, the liquid outlets 24 thereof are closed by valve 25 [see also Figs. 4 and 5 (not shown)] rotating on shaft 36.
Patent GB-922723-A (GB)
Title: Improvements in or relating to bedding equipment
IPC: A47G9/08
Filed: 1961-02-20
Abstract: 922,723. Sleeping bags. D. A. CARREZ. Feb. 20, 1961 [Feb. 19, 1960], No. 6199/61. Class 133. Bedding equipment which may be used either as a quilted sleeping bag or as a quilt for a normal bed, and which comprises an ordinary bed quilt 8 and a covering bag 1 having a slot 5 therein whose edges are secured by a zip fastener 6, the arrangement being such that the quilt can be inserted through the slot into the covering bag and the latter can then be folded upon itself as a Fig. 5 and secured in that position by the zip fastener 2 to form a sleeping bag. The covering bag has a pocket 4 to receive a pillow and may also have a damp-proof mattress or lining.
Patent GB-1164787-A (GB)
Title: Improvements in and relating to Printing Inks
Inventor: RIO JOAQUIN RUIZ DEL
IPC: C09D11/10
Filed: 1968-02-08
Abstract: 1,164,787. An ink concentrate. J. R. DEL RIO. 8 Feb., 1968 [27 May, 1967], No. 6360/68. Headings C3P and C3Q. A printing ink concentrate comprises an aqueous resin emulsion, a colouring agent and from 20 to 50% of a volatile organic solvent for the colouring agent. The resin is preferably polyvinyl acetate, an acrylic resin, acrylic/vinyl copolymer, natural or synthetic rubber. The solvent is preferably an aliphatic acetate. An ink may be formed by mixing the concentrate with 20-50% by weight of water.
Patent GB-953945-A (GB)
Title: Improvements relating to electrical connectors
IPC: H01R4/50
Filed: 1962-02-20
Abstract: 953,945. Cable and wire couplings. FRED GILBERT (CARDIFF) Ltd.,. and T. H. BLICK. Feb. 20, 1963 [Feb. 20, 1962], No. 6419/62. Heading H2E. An electrical connector comprises a body port 3 having a screw-threaded recess 4 therein, the lower end of said recess forming an abutment for the base of a cone member 5 which is adapted to be located adjacent to said abutment in the screw-threaded recess and a sleeve 6 which screws into the recess to lock the strands 8 of a cable 7 which are to be located between the end of said sleeve and the periphery of the wave member. The connector shown is doubleended but a single-ended connector is also referred to.
Patent GB-384637-A (GB)
Title: An electric control system
IPC: B60L3/00
Filed: 1931-03-02
Abstract: 384,637. Control of motors. ODA, K., 337, Kamitotsuka, Totsuka - machi, Toyotama-gun, Tokio-fu, Japan. March 2, 1931, No. 6450. Convention date, Feb. 28, 1930. Void [Published under Sect. 91 of the Acts]. [Class 38 (iii).] Travelling to predetermined limits. - The motor 1, or an electromagnetic device, is stationary when change-over switches 2, 4 connect both terminals to the same potential supply conductors. Movement of switch 2, to change the potential of one terminal of the motor, causes it to run until it moves the other switch 4 to a corresponding position. The switch 2 may be operated manually or automatically. The motor may be used for operating a railway station indicator, level crossing gates, a warning device at such crossings, or for winding a clock.
Patent GB-627491-A (GB)
Title: Improvements in liquid actuated clutches
IPC: F16D43/284
Filed: 1946-03-01
Abstract: 627,491. Clutches. MERCURY CLUTCH CORPORATION. March 1, 1946, No. 6453. Convention date, March 2, 1945. [Class 80 (ii)] In a liquid actuated clutch, the liquid preferably mercury in an annular flexible gland 29 housed in a driving member 21 secured to a shaft 2, is thrown centrifugally outward on rotation of the latter, and forces friction shoes 41 into frictional engagement with a driven member 6. The friction shoes 41 are housed in apertures in the side walls of the driving member. The clutch is held in the disengaged position by springs 40 between pressure plates 33 and the side faces of the driving member 21. In a modification, the flexible gland is rectangular in cross-section, and contains an annular filler ring, the clutch being engaged by the liquid under centrifugal force moving between the sides of the ring and the gland. Specifications 594,687, 626,046 and 627,487 are referred to.
Patent GB-854027-A (GB)
Title: Improvements in the treatment of scheelite ores
IPC: C01G41/00
Filed: 1959-02-25
Abstract: Scheelite ores are treated to obtain tungsten values free from molybdenum by digesting the ores with aqueous hydrochloric acid and extracting the molybdenum from the digestion mixture with methyl isobutyl ketone.  The methyl isobutyl ketone may be present during the digestion step or may be added subsequently.  In the latter case, for maximum removal of molybdenum the molarity of the digestion mixture should be reduced to 6-8, e.g. by the addition of water or a base, before addition to the methyl isobutyl ketone. At the end of the digestion period the organic phase is removed and the solid residue containing tungstic acid separated from the remainder by filtration, centrifuging &c.  The solid residue may then be treated with aqueous ammonium hydroxide to form ammonium paratungstate which is crystallized from the solution.ALSO:Scheelite ores are treated to obtain tungsten values free from molybdenum by digesting the ores with aqueous hydrochloric acid and extracting the molybdenum from the digestion mixture with methyl isobutyl ketone.  The methyl isobutyl ketone may be present during the digestion step or may be added subsequently. In the latter case, for maximum removal of molybdenum, the molarity of the digestion mixture should be reduced to 6-8, e.g. by the addition of water or a base, before addition of the methyl isobutyl ketone.
Patent GB-1001141-A (GB)
Title: Improvements in or relating to a process for manufacturing active materials and electrodes for alkaline storage cells and active materials and electrodes obtained thereby
IPC: H01M4/62
Filed: 1962-02-20
Abstract: 1,001,141. Batteries. SOC. DES ACCUMULATEURS FIXES ET DE TRACTION. Feb. 20, 1962 [March 10, 1961], No. 6532/62. Heading H1B. The active material, e.g. nickel hydroxide, of storage battery electrodes is mixed with a metal powder having interlaced, threadlike clusters of particles, e.g. nickel carbonyl, and then passed through a three rollers device where it is compressed and subject to a further mixing process. The spacing of the rollers is adjusted so that the thread-like clusters of particles are not destroyed. A wetting agent and solid lubricant may be used.
Patent GB-1280663-A (GB)
Title: Improvements in or relating to d.c. restoration circuits
Inventor: LETHEREN HUGH ADRIAN
IPC: H04N5/16
Filed: 1969-02-06
Abstract: 1280663 DC restoration MARCONI CO Ltd 5 Nov 1969 [6 Feb 1969] 6541/69 Heading H4F A D.C. restoration circuit comprises a capacitor 2 connected between inupt and output terminals 1 and 16, an amplitude discriminator circuit including transistors 3, 4 and 9, an integrator 11, 12, and a potential divider 13, 14, 15. In operation when a signal exceeds (negatively) the level set by potentiometer 7 current flow occurs in transistor 3 increasing the voltage across resistor 17 which cuts off transistor 4. The resulting increase in current in transistor 3 causes the voltage across tunnel diode 5 to jump so that this voltage when added to that across germanium diode 6 is sufficient to turn transistor 9 on. This transistor acts as a switch to give constant amplitude pulses which are integrated 11, 12 and applied to the base of transistor 13 to control the resistance between the collector and emitter thereof and hence determine the resistance value ratio of the potentiometer 14 and 13 to resistance 15. Thus variations at 16 will cause the current in transistor 13 to alter and cancel the variation. Even single large amplitude negative pulses do not seriously effect the mean level of the output, which level is set by potentiometer 7, since they only cause single pulses to reach the integrator which is arranged to have a long time constant.
Patent GB-284878-A (GB)
Title: Improvements in the manufacture of hollow cylinders or other hollow bodies
IPC: H01B3/54
Filed: 1927-03-09
Abstract: 284,878. Schroeder, R. March 9, 1927. Drawings to Specification. Fibrous tubes.-In making hollow cylinders or other hollow prisms-e.g., insulating cylinders used in electrical work-by winding upon a metallic mandrel with simultaneously employment of pressure and heat layers of flexible, fibrous or textile material, which in some cases is treated with natural or artificial resin or gum, the mandrel is made adjustable for different sizes of hollow bodies by employing one or more removable sleeves made of metal or other durable material'such as wound sheets of fibrous or textile material and resin or artificial resin, subjected to drying and baking, the sleeves being slit longitudinally or substantially longitudinally. Where more than one sleeve is used the slits are arranged in staggered relation.
Patent GB-1041180-A (GB)
Title: Apparatus for heat treatment of synthetic fibre yarns
IPC: D01D10/04
Filed: 1963-09-18
Abstract: Yarns of synthetic fibres are uniformly heat-treated e.g. to set crimping, in a vessel 15 comprising minor vessels 11 (each having external narrow channels 12 accommodating running yarns 18) interconnected by tubes 13 and 14 and containing a heater 17 immersed in heat transfer liquid 16 the vapour of which fills the vessels.
Patent GB-1451593-A (GB)
Title: Method of producing sulphur hexafluoride
IPC: C01B17/45
Filed: 1975-02-17
Abstract: 1451593 Sulphur hexafluoride KALICHEMIE AG 17 Feb 1975 [16 Feb 1974] 6688/75 Heading C1A Sulphur hexafluoride is produced by reaction of sulphur and fluorine in a reactor. the higher boiling secondary products formed in the reaction are separated off and either subjected to a heat treatment at from 400‹ to 800‹ C. for a residence time of from 0À1 to 100 seconds to decompose at least some of these unwanted products or evaporated and introduced in the gaseous state into the sulphur-fluorine reactor. The products from the heat treatment step may be introduced into the reactor, as may the evaporated products, via a feed pipe supplying the fluorine to the reactor.
Patent GB-714952-A (GB)
Title: Improvements relating to ventilating arrangements for vehicles
IPC: B60H1/30
Filed: 1952-03-14
Abstract: 714,952. Ventilating vehicles. DAIMLERBENZ AKT.-GES. March 14, 1952 [March 14, 1951], No. 6692/S2. Class 137 In addition to a ventilating duct 11 leading to the interior of a vehicle from an air-catching funnel 10 a passage 16 leads to the outside and flaps 13, 15, respectively closing the entrance to these passages are so connected by linkage 17 operable by a rod 20 and lever 19 that when the ventilating duct is open the outlet passage is closed and vice versa. Dust &c. is thus prevented from collecting in the funnel when the duct is closed. Duct 11 may accommodate a heater.
Patent GB-272583-A (GB)
Title: Improvements relating to magneto electric machines
IPC: H02K21/18
Filed: 1926-03-11
Abstract: 272,583. M-L Magneto Syndicate, Ltd., and Laird, J. A. March 11, 1926. Magneto - electric machines.-For securing effective operation over a wide range of advance and retard, magnetic flux is supplied to the generating winding of an ignition magneto from two or more independent rotary magnets, or two or more connected stationary windings on separate cores are supplied with flux from a single rotary magnet. Figs. 1 and 3 show two sets of rotary magnets a, b acting on a single stationary armature h, the polar axes of the magnets being inclined to each other. The magnets, which may be of different axial widths, are separated by non-magnetic discs f. Specifi. cation 4339/08 is referred to.
Patent GB-235839-A (GB)
Title: Improvements in and connected with conveyor chains and attachments therefor
IPC: B65G17/38
Filed: 1925-03-12
Abstract: 235,839. Jeffrey Manufacturing Co., (Assignees of Levin, N. D.). June 23, 1924, [Convention date]. Carriers attaching to chains.-Each scraper 15 is pivotally mounted on a pin 14 carried in lugs 13 on a link 1. The attaching end 18 is curved round the pin to protect it. Push-plates and scrapers, construction of.- Each scraper is hollow and has an inclined upper surface 17 on each side of the centre.
Patent GB-213898-A (GB)
Title: Memorandum clocks
IPC: G04C10/00
Filed: 1924-03-17
Abstract: 213,898. Kõppler, F. April 3, 1923, [Convention date]. Cases, clock.-In an alarm clock in which an electrically-operated bell is sounded or other signal given at predetermined times by the insertion in the dial of a metal pin having a memorandum card attached, the base b of the clock is made to contain the battery e and bell f and the clock key g. The cup-shaped case a has an inclined front face for the dial and is hinged to the base at c to give easy access to the battery &c.
Patent GB-776485-A (GB)
Title: Improvements relating to hoisting apparatus
IPC: B66D5/12
Filed: 1955-03-08
Abstract: 776,485. Hoists. PUTZER, H. March 8, 1955 [May 11, 1954], No. 6814/55. Class 78 (5). Hoisting apparatus comprises a shaft 2 having a brake disc or ratchet 5 freely rotatable thereon, a brake plate 3 fixed to said shaft, a driving member 4 threaded on the shaft and adapted when rotated in one direction to advance along the shaft to trap the brake disc between the member and the plate and thus lock the plate to the shaft, stop means 9 limiting rotation of member 4 relatively to said shaft in the opposite direction, and means 12 for releasably holding the member relative to said shaft. As shown, the hoisting drum or pulley is geared to shaft 2, and handle (or hand wheel) 7 has a pawl 8 reversible to allow for the ascent or descent of the load cable operated by said drum or pulley. Oscillation of the handle drives member 4, which drives the shaft to raise the load and conversely, allows the shaft to turn to lower the load. When there is no load on the cable a sharp pull on the rope causes dog 12 to lodge in notch 15 to bind together the member 4 and shaft 2 so that ratchet 5 is free and a further pull on the rope unwinds it.
Patent GB-131076-A (GB)
Title: Improvements in Sparking Plugs for Explosion Motors.
Inventor: LEDANOIS JULIEN FERDINAND
IPC: H01T13/16
Filed: 1918-04-23
Abstract: 131,076. Ledanois, J. F. April 23, 1918. Sparking-plugs. - Wide, thin - walled, perforated cups d, b, are provided at the outer ends of the central conductor and insulator respectively to promote cooling. The central conductor may be hollow for the greater part of its length. The plug body may be in two parts. A ring e<1> screwed into the inner end of the casing constitutes the second electrode. The high - tension head h may be connected directly to the cup d, or to a grooved ring i thereon, or by means of a clamping-ring and nut or a spring plug.
Patent GB-700376-A (GB)
Title: Reconstruction of glyceride oils
IPC: C11C3/08
Filed: 1951-03-22
Abstract: Glyceride oils of the coconut oil group, e.g. coconut oil, palm kernel oil and babassu oil, are reconstructed by heating them with an amount of higher fatty acid (i.e. a fatty acid with 12-18 carbon atoms) in excess of that required to displace the major proportion of combined lower fatty acids (i.e. fatty acids with 6-10 carbon atoms), removing the displaced lower fatty acids from the reaction zone and heating the product with sufficient glycerine to esterify the free fatty acids present and give a neutral or slightly acid product.  The displacement may be carried out at temperatures between 250 and 270 DEG C., and also under reduced pressure.  A fractionating column may be used to return the higher fatty acids to the reaction zone while allowing the lower fatty acids to vaporize off.  An oxide catalyst such as zinc oxide or boric acid may be used in the displacement reaction.  The esterification of excess fatty acids with glycerine may be carried out at temperatures between 250 and 270 DEG C. and also under reduced pressure.  Initially a stream of carbon dioxide may be used at atmospheric pressure, and then the pressure may be reduced, or the glycerine may be added in two stages.  Examples are given. Specification 571,209 and U.S.A. Specification 2,182,332 are referred to
Patent GB-993245-A (GB)
Title: Improvements in apparatus for wetting sheets of photographic foil material
IPC: G03D5/06
Filed: 1962-02-22
Abstract: 993, 245. Web coating apparatus. PHOTOENTWICKLUNGSGERATE A.G. Feb. 22, 1962 [Feb. 23, 1961; Oct. 12, 1961]; No. 6903/62. Heading D1L. [Also in Division G2] Processing solution is applied to a film sheet by a wetted roller, the roller forming either with an adjacent ledge or counter-roller a narrow gap into which a small amount of solution is fed from a closed container, where it maintains itself by capillary action. In the form shown, the photographic paper 5 to be treated is fed into the apparatus by rollers 6, and passes over the treating roller 7. Above this is supported a storage container 9 having a rubber top 10 and a discharge tube 11. Before the paper is inserted finger pressure on the top 10 causes some of the liquid in the container to be discharged on to treating roller 7. Adjacent roller 7 is a right-angle bracket 12, whose horizontal leg 12<SP>1</SP> is spaced about 1 mm. below the roller. The limited amount of liquid discharged on to the roller is carried round and fills the space 19 between roller and leg by capillary action, so that as the roller rotates, its whole surface becomes wetted. As paper 5 is passed through the apparatus, the liquid is applied by roller 7 to its under side. Since only a small limited amount of liquid 19 is present, it is soon exhausted, and need be replenished only as required, thus avoiding the wastage involved in having a bath of liquid, some of which eventually becomes unusable through oxidation. The speed of rotation of roller 7 is higher than the speed of advance of the paper, and the vertical bracket leg 12<SP>11</SP>, spaced close to the paper, prevents the other side of the paper being wetted as its back edge leaves the roller. A double system is shown in Fig. 1, the first container 9 holding a developing solution and the second a stabilizing solution. In the modification of Fig. 2, a counter-roller 20 rotates in contact with roller 7. The nip 21 between them forms the space holding the small limited supply of processing liquid. Figs. (not shown) 3 and 4 are further modifications in which a small amount of liquid is held against the application roller.
Patent GB-119631-A (GB)
Title: Improvements in or relating to Pneumatic Hammers.
Inventor: CHOPIN ALBERIC LOUIS
IPC: B25D17/08
Filed: 1917-10-16
Abstract: 119,631. Chopin, A. L. Oct. 16, 1917. Percussive drills.-In a percussive drill, the tool has a shoulder 8 with a peripheral concavity in which fits a split and elastic collar 11 carrying the conduit 13 through which scavenging fluid is supplied to the passage 9. The ends of the collar are connected by a cotter 12.
Patent GB-840814-A (GB)
Title: Improvements in or relating to activated alkali metal compounds
IPC: B01J16/00
Filed: 1957-03-01
Abstract: Addition compounds containing alkali metals in a reactive form are prepared by treating unsaturated hydrocarbons possessing ethylenic double bonds that either include at least a pair of conjugated double bonds or at least one double bond activated by an adjacent aromatic ring with an alkali metal, more than two atom equivalents of alkali metal being used per mol. of hydrocarbon. The addition preferably takes place in an inert solvent such as toluene, xylene, paraffin oil, in the absence of air and moisture and preferably at elevated temperature.  Advantageously the reagents may be stirred for one or two hours at room temperature and then heated to a temperature above the melting point of the alkali metal.  A small quantity of the desired compound from a previous batch may be added.  Specified hydrocarbons include anthracene, phenanthrene, stilbene, assym-diphenyl ethylene, tetraphenyl paraquinodimethane, 1,4-diphenyl-butadiene and fulvene.  The excess alkali metal atoms over two per molecule are very reactive and the compounds may be used in place of free alkali metal in organic chemistry.