baber/WOPTO huggingface dataset:
Patent GB-342746-A (GB)
Title: Improvements in selective sound-reproducing machines
Filed: 1929-10-02
Abstract: 342,746. Coin-freed gramophones. BRENNER, J. G. and BRENNER, B. W., Alma Rio, Sandy Lane, Cobham, Surrey. Oct. 2, 1929, No. 29783. [Class 27.] Coin action, weight.-In a gramophone comprising a rotary record magazine, which can be set to enable any selected record to be played, mechanism is provided whereby insertion of a coin enables a spring motor to be wound up and the apparatus to be set in motion. In the construction shown, one end of the spring is fixed, and the other is attached to a shaft 103. This has a pawl and ratchet connection to a wheel 26 thereon, so that as the spring unwinds the wheel 26 is driven, power being transmitted from this wheel to the various working parts of the machine. A wheel 102a, loose on the main motor-shaft 103, is geared to a winding-handle 3a, and carries a pawl 104, which is normally held out of engagement with a 'ratchet-wheel 105 fast on the shaft. This disengagement is effected by a lever 101 when it is in the position shown in dotted lines in Fig. 22. When a coin is inserted in a shoot 99, it acts by its weight to tilt a detent lever 96, thereby allowing a lever 100 to rock and to move the lever 101 into the position shown in full lines in Fig. 22. The pawl 104 then engages the ratchet-wheel 105, so that the motor spring can be wound. During the winding, a wheel 88 is rotated by gearing from the motor shaft, until a pin 110 thereon bears against an arm 111 fixed on a shaft 12. A slight rotation of the shaft 12 is thus caused, and one effect of this is to move a rod 113 endwise; this rod through toggle mechanism rotates a spindle 114, and thereupon an arm on this spindle, which by pressing against a spring blade 120, normally applies a brake to the turntable, releases the brake. Simultaneously, a pin on the spindle 114 moves the lever 100, and so causes the lever 101 again to shift the pawl 104 out of action. By this means, overwinding is prevented, and the machine is automatically started when the spring is sufficiently wound. After the partial rotation of the shaft 12 has occurred as described, it is held in the position in which it causes the brake to be held off the turntable, by a catch engaging an arm 18. This catch is automatically tripped when a played record is returned to the magazine, so that all the parts of the mechanism associated with the shaft 12 are restored, by spring action, to their normal position, the brake being then re-applied. In a modification (Fig. 23, not shown), the winding- mechanism comprises sun-and-planet gearing. A set of planet-wheels rotatable directly by the winding-handle, gear with a central wheel on the winding spindle and also with internal teeth on a ratchet-wheel which is normally free to turn. The insertion of a coin causes a pawl to fall and lock the ratchet-wheel, whereupon the planet-wheels, when rotated by the handle, drive the central wheel and cause the spring to be wound.
Patent GB-850337-A (GB)
Title: Improvements in and relating to the manufacture of alkali metal hydroxides
IPC: C01D1/42
Filed: 1958-09-19
Abstract: The water content of solid alkali metal hydroxides is reduced to below 0.6% wt. while such alkali metal hydroxide is molten, and at a temperature of 610 DEG F. to 635 DEG F. the molten hydroxide is poured into a container which is then sealed.  Reduction of the water content to below 0.6% wt. may be effected by vacuum dehydrating aqueous solutions of alkali metal hydroxides e.g. sodium hydroxide solution produced as cell liquor during the electrolysis of brine, to yield melts of alkali metal hydroxide containing say 0.8-2.0% wt. of water and thereafter passing an inert gas e.g. air, neon or nitrogen through the molten pool of alkali metal hydroxide which is generally at 610-700 DEG F. whereupon most of the residual water is removed. The resulting melt containing less than 0.6% wt. and preferably less than 0.3% wt. of water is transferred at a temperature of 610-635 DEG preferably 615-625 DEG F. to steel drums for packaging and storage. Reference is also made to the use of nickel lined drums.
Patent GB-1462908-A (GB)
Title: Cable shoe
IPC: B66C1/12
Filed: 1974-07-08
Abstract: 1462908 Cable shoes EISEN-UND DRAHTWERK ERLAU AG 8 July 1974 [7 July 1973] 30107/74 Heading E2A A cable shoe for guiding a cable during hauling by a traction member comprises a body with a guide opening for the cable and a retaining member for the traction member. The body is U shaped, each leg has a circular opening 10 which openings 10 are defined to provide the channel 3 for a cable. A narrow slot opening 13 extends from one opening 10 and provide a retaining opening for a chain traction member. The opening 10 may extend to bottom of the shoe or may extend to other opening 10. The guide opening may be provided by a tube 1b, Fig. 4, welded to the body and projecting beyond the ends of the body which is of more compact construction as shown in Fig. 5. The body may be cylindrical, Fig. 8, with tube guide supported within it. The ends of the guide tube may be frusto-conical.
Patent GB-998291-A (GB)
Title: Improvements in or relating to crystalline polyolefines
IPC: C08F4/68
Filed: 1963-07-30
Abstract: Alpha-olefines are polymerized to crystalline polyolefines using a catalyst system comprising (1) an organometallic compound of a Group I to III metal, (2) a halide of a transition metal of Group IV to VI, in which the valency of the transition metal is below its maximum, and (3) an organosulphur compound selected from (a) benzothiazole compounds having the formula <FORM:0998291/C3/1> (b) benzimidazole compounds having the formula <FORM:0998291/C3/2> (c) phenothiazine and its derivatives; (d) compounds having the general formula Z[(CH2)mY]2 and (e) compounds having the general formula <FORM:0998291/C3/3> where "M" is a metal, an ammonium radical, a hydrogen atom or an organic residue; "n" is an integer from 1 to 4; "Z" is S, S2, SO or SO2; "Y" is COOR, COR or OR; "R" is hydrogen or a hydrocarbon residue; "m" is an integer from 1 to 10; "X" is S or O; "R1" and "R2" each represent hydrogen or hydrocarbon residues; "A" is XnMe, XHR3, XnR4 or Xp, where "Me" is a metal or an ammonium radical; "R3" is an amine or a substituted amine; "R4" is a hydrocarbon residue and "p" is an integer from 1 to 4.  Lists of catalysts components are given.  Organo-sulphur compounds used in the examples are mercaptobenzimidazole; mercaptobenzthiazole; dibenzimidazolyl disulphide; zinc salt of mercaptobenzimidazole; phenothiazine; N-cyclohexyl - 2 - benzothiazolyl - sulfenamide; N,N - di - isopropyl - 2 - benzothiazolysulphenamide; thiodipropionic acid dilauryl ester; dithiodipropionic acid dilauryl ester; sulphone dipropionic acid dilauryl ester; zinc dimethyldithiocarbamate; tetramethylthiuran monosulphide and the nickel salt of mercaptobenzothiazole.
Patent GB-1332620-A (GB)
Title: Aircraft having horizontal stabilizers
IPC: B64C27/26
Filed: 1972-06-28
Abstract: 1332620 Aircraft stabilizing surfaces UNITED AIRCRAFT CORP 28 June 1972 [14 Sept 1971] 30158/72 Headings B7W and B7G A horizontal stabilizing surface on an aircraft, in the embodiment a helicopter, comprises an aerofoil 30, 32 positioned on opposite sides of a fuselage tail portion 24, the aerofoils being connected by a pair of concentric tubes 46, 48 pivotally mounted within the fuselage tail portion. The tubes which are sleeved with tube 46 inside and extending beyond the ends of tube 48 are both connected by a control arm 80 and pivotally mounted in bearings 38, 40 respectively carried by fuselage frames 34, 36. Each aerofoil 30, 32 has a pair of ribs connected to a tube-mounting fitting 42, 44 respectively to which tube 46 is connected by bolts 58 and tube 48 by bolts 60. To accommodate the tubes of different diameters each fitting 42, 44 is larger over one portion of its length than the other and has an octagonal exterior profile to provide seatings for the heads and nuts of the bolts 58, 60. Flanges 62, 64 are forged on the ends for attachment to the aerofoil ribs and longitudinally extending flanges 66, 68 are provided for attachment to span members 74, 76, in place of the spar web, over the length of the fitting. By this means a redundant connection is provided between the aerofoils.
Patent GB-451741-A (GB)
Title: Saddles for motor-cycles and the like
IPC: B62J1/00
Filed: 1935-11-02
Abstract: 451,741. Saddles. WAGNER, K., (trading as KAUEMANN & CO. HANDEL MIT AUTOMOBILBESTANDTEILEN), 17, Zollamtsstrasse, Vienna. Nov. 2, 1935, No. 30287. Convention date, Dec. 5, 1934. [Class 136 (iii)] In a saddle for motorcycles &c. of the type in which elastic material, such as sponge rubber, rests upon a base-plate without being connected thereto, the base-plate 1 (saddle shown inverted) is provided with one or more openings 6, through which local parts of the elastic material when subjected to shocks can be displaced, the openings also permitting ventilation of the elastic material. The openings 6 may be covered by wire netting 7, which may be resilient. A single large opening may be provided. The base-plate 1 is fitted with bolts 5 for the attachment of saddle springs, &c.
Patent GB-1029466-A (GB)
Title: Paper coating clay and method for treating the same
Inventor: HEMSTOCK GLEN ALTON
IPC: C04B33/04
Filed: 1964-07-31
Abstract: Kaolin clay is treated to alter and improve the rheological properties of aqueous slips of the clay by pugging uncalcined kaolinite with water while employing a work input of at least 10 h.p. hours per ton of dry clay, and subsequently subjecting the pugged clay to the action of hot water at a temperature of from 300 DEG  to 550 DEG  F. under at least autogenous pressure.  The clay may be a primary or secondary kaolin clay and may comprise the whole clay, for example of particle size between 0.8 and 2 microns (particle size being given as the average equivalent spherical diameter), or a classified fraction, for example a fine fraction of particle size between 0.5 and 0.8 micron or a coarse fraction of particle size 5 microns; calcined clay is specifically excluded from treatment by this process.  Preferably, during the pugging or mechanical working step the mixture of kaolinite and water has a pH of between 3 and 7 and is free from clay dispersants other than alkali metal hydroxide used for pH adjustment.  The work input of the pugging step may vary from 10 to 175 h.p. hours per ton of dry clay, between 30 and 75 h.p. hours per ton being normally sufficient but between 150 and 175 h.p. hours per ton being preferred for pugging coarse fractions.  The working step may be carried out batchwise or continuously in suitable mills which give a kneading action to the clay, and for a time which may be between a few seconds and a few minutes for closed mills and between 1/2 and 12 hours for open mills.  In the working step, the clay-water mixture preferably contains between 69% and 80% by weight of dry clay. The pugged clay, or any size fraction thereof, is preferably diluted with water, for example to form an aqueous slip containing from 25% to 33% by weight of clay, before being subjected to hydrothermal treatment, which treatment may take place in an autoclave under autogenous pressure or above for a time of between one second and 12 hours, the actual time being dependent on the existing pressure and temperature conditions. After hydrothermal treatment, the clay slip may be concentrated, deflocculated by the usual clay dispersants and spray dried to give a product of use as a papercoating colour when made into a composition with adhesives such as, for example, starch, latex and casein.  Numerous examples are given of the treatment of different clays and size fractions thereof, various conditions being chosen in the mechanical working and hydrothermal treatment steps.
Patent GB-971256-A (GB)
Title: Improvements in liquid fuel homogeneous nuclear reactors
Inventor: FRIEDL JOHANN
IPC: G21C1/00
Filed: 1960-09-02
Abstract: 971,256. Homogeneous nuclear reactors. BABCOCK & WILCOX Ltd. Aug. 31,1961 [Sept. 2, 1960], No. 30319/60. Heading G6C. A liquid fuel homogeneous nuclear reactor comprises a lower reactor chamber and an upper heat exchanger, having a valved connection between the top of the chamber ana the exchanger for the passage of vapours and a connection for the passage of condensed vapours between the exchanger and the bottom of the chamber, which connection also serves as an inlet for liquid fuel to the chamber. The reactor chamber has a super-critical volume with respect to the fuel; the remaining fuel carrying spaces being of sub-critical volume. A particular embodiment is shown in Fig. 1 where the pressure vessel contains in its lower portion, an open ended bell-like hood 2, which is spaced above the bottom of 1 and thus the interior wall of 1 and the exterior wall of 2 define an annular passage 3 which communicates between the inside of the hood and the upper part of vessel 1 which contains the heat exchanger 6. The pipe 4 joins the top of 2 with the upper part of 1, and contains valve 5 which controls the flow of vapour through 4 and therefore regulates the pressure difference between the interior of hood 2 and the upper part of 1. Valve 5 is preferably arranged to open automatically to increase the flow of vapour when the pressure in the heat exchanger falls below a certain value and to close automatically and decrease the flow of vapour when the pressure in the heat exchanger is above a certain value. The apparatus operates as follows:- the vessel 1 is filled with nuclear fuel above the level of 2, and since 2 has a supercritical volume with respect to the fuel a nuclear reaction is initiated, the liquid vapourises and pressure begins to increase in vessel 2. As it does so the fuel is forced out of 2 into the annular space 3, and the fuel in 2 becomes sub-critical and the reaction ceases unless valve 5 is opened when vapour passes through 4 and tends to equalise the pressures when the nuclear reaction starts again. Thus the valve 5 can be used as a means of controlling the rate of reaction in the nuclear core and since to some extent the vapour pressure in vessel 1 depends on the amount of condensing done in exchanger 6, the reaction rate also reflects the heat requirements of the exchanger. The hood 2 may also be lined with coolant tubes, which are preferably in series with the coolant tubes of heat exchanger 6. Figs. 2 and 3 (not shown) illustrate respectively, embodiments of the invention where the heat exchange coil is packed with a moderator material to ensure all spaces are sub-critical with respect to the fuel, and wnere the reactor chamber and the heat exchanger occupy separate vessels.
Patent GB-1479772-A (GB)
Title: Drainage sheet material
IPC: E02B11/00
Filed: 1974-07-09
Abstract: 1479772 Laminates OHBAYASHI-GUMI Ltd and JAPAN VILENE CO Ltd 9 July 1974 30323/74 Heading B5N [Also in Divisions El and Al] A drain sheet material 1 to be used for draining an excessive pore water from a soil comprises a non-woven fabric layer 2 in which the fibres are randomly interconnected at at least some of their cross points, and two further non-woven fabric layers 3, 3(a) which are formed of man-made fibres and are denser and thinner than the layer 2, and a flexible member 4 embedded in the layer 2 and having openings 5 which communicate with a continuous passage 6 in the member 4 whereby muddy water is filtered by the layers 3, 3(a) and then by the layer 2 to enter the openings 5 to be drained along the passage 6. The layers 3, 3(a) may be made out of an ordinary dense non-woven fabric, another type of non-woven fabric in the form of net film formed by cross lamination of split film or perforated film. The layers 3, 3(a), filter the water from the soil in order that the layer 2 may not be clogged. 70% of nylon of 70 denier and 76 mm. length and 30% of acrylonitrile of 43 denier and 76 mm. length are mixed to form a web on both sides of which is sprayed a cross-linking agent of SBR latex to make the fabric 2. The surface layer 3 is made by forming a web containing 35% of polyester of 3 denier and 64 mm. length and 65% of rayon of 3 denier and 51 mm. length, and then applying a latex of acrylic ester. The layer 3(a) is made of plain fabrics of polypropylene slit yarn. The drain sheet material 1 is used for consolidating soil and stabilizing embankments. The sheets are mounted on drain pipes (13) covered by filter mats (12) to drain water efficiently, Fig. 3 (not shown) and the assembly is placed underneath the soil. In order to stabilize the slope of an embankment one end of the member 4 projects out of the slope (see Fig. 5) to water the slope so that plants can be grown on the slope thereby stabilizing it.
Patent GB-602961-A (GB)
Title: Improvements relating to cathode ray tubes
IPC: H01J29/74
Filed: 1945-11-13
Abstract: 602,961. Cathode-ray tubes. COSSOR, Ltd., A. C., and MOSS, H. Nov. 13, 1945, No. 30343. [Class 39 (i)] A cathode-ray tube particularly one for use at very high frequencies, has interposed between the two sets of deflector plates a conducting shield 3 which extends out through the wall of the tube and which may be continued by a conducting annulus 4 so that only a small disc need be used in the sealing operation. Because of this arrangement the forward set of plates 6, 7 is mounted on two pairs of parallel wires 8, 9 and 10, 11 sealed through the wall of the tube. These wires are spaced to form a transmission line of suitable characteristic resistance such as 90 ohms, so that when a 90 ohm resistance is connected across the outer end of wires 8, 9 the system is non-reflecting to high-frequency voltages transmitted from the ends of 10, 11. The slot 5 along the X-X axis of the disc 3 accommodates the deflection of the beam by the X-plates, not shown.
Patent GB-333101-A (GB)
Title: Improvements in steam driven vehicles
IPC: F01B17/04
Filed: 1929-10-08
Abstract: 333,101. Foden, E. R., and Fodens, Ltd. Oct. 8, 1929. Addition to 227,611. Steam wagons.-The Cardan shaft d is placed in line with the crank shaft c and a direct drive obtained by engaging pinions e, f. A low gear drive by way of pinion e and lay shaft h is obtained by sliding pinion e.
Patent GB-796493-A (GB)
Title: Production of tetracycline by fermentation
Filed: 1954-10-22
Abstract: Tetracycline is produced by growing Streptomyces sp.  ATCC 11,834 under aerobic conditions in contact with a fermentation medium containing an assimilable source of carbon, a source of nitrogen and growth-promotors.  Submerged culture is preferred using an initial pH of 7 in its aqueous medium, a buffer such as calcium carbonate, a temperature of 20 DEG  to 35 DEG  C., especially 25 DEG  C. and a duration of cultivation of 70-130 hours.  The carbon source may be a carbohydrate, e.g. glucose, maltose, sucrose, starch and dextrin; glycerol; fats, e.g. lard, soybean, linseed, cottonseed, peanut, coconut, corn, castor, sesame, palm, sperm and olive oils, mutton tallow, tristearin, triolein, trilaurin and tripalmitin; fatty acids, e.g. stearic, palmitic, oleic, linoleic and myristic acids.  The nitrogen source may be hydrolysed casein, wheat gluten, lactalbumin, soybean meal, yeast extract, distiller's solubles, urea, nitrates, amino acids and ammonium compounds.  Other components of the medium are mineral salts, e.g. phosphates and trace metals, e.g. potassium, calcium, magnesium and iron.  Chloride ions should be kept at a minimum. Tetracycline is recovered from the fermentation broth by acidifying to e.g. pH 2, removing the mycelium and extracting the clarified broth with a water-immiscible organic solvent for tetracycline such as n-butanol, amyl alcohol, methyl isobutyl keton, amyl acetate and/or ethyl acetate.  Extraction is improved by the addition to the clarified broth of (a) a water-soluble inorganic salt, e.g. ammonium sulphate or sodium sulphate; (b) a fatty acid, e.g. lauric or stearic acid; or (c) a detergent, e.g. sodium lauryl sulphate.  Alternatively, the solids from the untreated broth are extracted with an acidified organic solvent for tetracycline, e.g. methanol, isopropanol, n-butanol, acetone or methyl-isobutyl-ketone. Further purification is by (a) counter current distribution (Craig) using, e.g. n-butanol and a phosphate buffer at pH 3; or (b) fractional solution and crystallization from solvents, e.g. digesting with methanol and adding a non-polar organic solvent such as benzene, ether, acetone and hexane.  Tetracyline base has mpt 170-175 DEG  C., hydrochloride melts at 200 DEG  C.; ultraviolet spectrum, max. 268 mm , E1 per cent1 cm.=375; max. 355 mp, E1 per cent1 cm.=278. Specifications 610,570 and 747,779 are referred to.
Patent GB-655354-A (GB)
Title: Improvements in or relating to the production of photographic records of the profiles of solid objects
IPC: G03F7/00
Filed: 1947-11-18
Abstract: 655,354. Reproducing solid objects photographically. PARSONS & CO., Ltd., C. A., and SISSON, G. M. Nov. 18, 1947, No. 30546. Drawings to Specification. [Class 98 (ii)] In the production of a substantially uniformly exposed photographic record of the profile of an object illuminated by a narrow rectangular beam of light from a projector, a filter imposing different predetermined degrees of light absorption throughout its surface is introduced in the light path between the projector and object or between the object and camera so as to cause either the intensity of illumination along the height of the narrow beam or the intensity of light reaching the camera from different parts of the field to vary according to the reflectivity of the correspohding part of the object illuminated. Profile records so obtained may be projected on to a blank which is then cut in accordance with the indications of the profile records. The correct filter may be determined by employing a number in succession and selecting the filter giving the best photograph.
Patent GB-201476-A (GB)
Title: Improvements in and relating to electric motor control apparatus
IPC: B60L15/20
Filed: 1922-11-08
Abstract: 201,476. British Thomson-Houston Co., Ltd., Tuppen, E. B., and Watson, G. O. Nov. 8, 1922. Intermittent toothed gearing; worms.-For actuating electric controllers intermittently, a worm 2 disposed with a varying lead round a shaft 1 engages a worm wheel 4 having equally spaced teeth. The idle portion of the thread A preferably joins the driving portion B through a gradual curve. Instead of a worm, a snail cam may be employed in a similar manner.
Patent GB-1080040-A (GB)
Title: Decking for improvised tracks
IPC: E01C9/08
Filed: 1966-07-07
Abstract: 1,080,040. Temporary roadways. THEO DOR WUPPERMANN G.m.b.H. July 7, 1966 [July 30, 1965], No. 30584/66. Heading E1G. A temporary roadway comprises a number of rectangular metal units made of several light steel sections a, b, c, d, one long side having an inwardly flanged U-section d<SP>1</SP> for articulation with a U-section on its side a<SP>1</SP> on an adjacent long side, the ends of the units having complementary U sections for vertical engagement. The roadway may be formed by alternate two's and three's of the units in a bond pattern.