baber/WOPTO huggingface dataset:
Patent GB-150231-A (GB)
Title: Improvements in or relating to protective arrangements for alternating current electric circuits
IPC: H02H3/08
Filed: 1920-02-09
Abstract: 150,231. Siemens Bros. Dynamo Works, Ltd., and Bolton, R. A. R. Feb. 9. 1920. Protective arrangements.-Polyphase alternating-current circuits are protected against excess current and power reversal by relays, one for each phase, operated on overload or reverse by current transformers in the respective phases and serving to connect the single trip coil of the main circuitbreaker to the current transformer of the faulty phase, whereupon the circuit-breaker is operated ; in order to deal with balanced overloads, one of the relays is provided with auxiliary contacts which, when the relay operates, short-circuits the operating-coils of the other relays so that one current transformer, only, supplies the tripping-current. As shown applied to the protection of a three-phase feeder against overload, each relay 13, 14, 15 is energized from its respective current transformer 6, 7, 8 through the contacts 16, 16<a> &c. of each relay. With excess current in any phase, its particular relay is operated to remove the bridge from the contacts 16, 16<a>. This removes a short-circuit from the single trip coil 5, the circuit in the case of the relay 13 being through the leads 19, 20 and 21. The current from the transformer in the faulty line thereupon operates the circuit-breaker. In the case of a balanced overload on each phase, all three relays operate, and the resulting current in the trip coil is zero. In order to ensure operation under these conditions, one of the relays is provided with additional fixed contacts 22, 23, 24, which are bridged when this relay is operated and serve to shortcircuit or open-circuit the coils 14, 15 of the other relays, leaving the trip coil energized by the transformer 6 only. Measuring or indicating instruments 10, 11, 12 may be placed in series with the current transformers. As applied to reversepower protection, a reverse-power relay in each phase is provided with contacts which normally bridge a further series connexion from the current winding of the relay through the common trip coil, and one relay is provided with additional contacts adapted on operation to render ineffective the current windings of the remaining relays.
Patent GB-894827-A (GB)
Title: Improvements relating to liquid proof containers
IPC: B65D5/56
Filed: 1957-02-05
Abstract: A liquid proof liner of polystyrene, polyethylene, polyvinyl chloride or cellulose acetate is formed inside a bag or carton by heating the liner and sucking it into the bag or carton which acts as a mould. The liner may be blown into the bag or carton, or a plug conforming approximately to the internal shape of the bag or carton may deform the liner.  Alternatively, the liner may be formed by drape moulding.
Patent GB-729847-A (GB)
Title: A new diamidine salt and process for its preparation
IPC: C07C309/51
Filed: 1953-02-12
Abstract: The invention comprises the salt of the symmetrical urea of m-aminobenzoyl-p-methyl-m - aminobenzoyl - 1 - aminonaphthalene-4 : 6 : 8-trisulphonic acid (suramin) and 1 : 5-di - (41 - amidinophenoxy) pentane uncontaminated with either the acid or the base from which it may be formed or another salt of said base or said acid.  It can be produced by reacting in aqueous medium a water-soluble salt of the suramin (e.g. the sodium salt) with a water-soluble salt, such as the isethionate or methane sulphonate, of the 1 : 5-di-(41-amidinophenoxy) pentane and isolating from the reaction medium the diamidine salt thus formed.  An example illustrates this process.
Patent GB-1058524-A (GB)
Title: Electrical connector lock mechanism
IPC: H01R13/635
Filed: 1965-01-29
Abstract: 1,058,524. Disengaging two-part couplings. INTERNATIONAL STANDARD ELECTRIC CORPORATION. Jan. 29, 1965 [Feb. 3, 1964], No. 4033/65. Heading H2E. A two-part multi-contact connector having pin-and-socket contacts 14, 20 (Fig. 2, not shown) has its two parts locked in the engaged position against the pressure of springs 46 by lock mechanism including a catch 124 on the socket part co-operating with main locking tangs 116 (Fig. 7), held in releasable locking position by the end 144 of a movable shaft 138. On energization of a solenoid 90 an armature 108 (Fig. 7) is drawn forward moving the edge of a secondary locking sleeve 182 from beneath a second set of locking tangs 176 and thereby allowing the compressed spring washers 180 to move end 144 of shaft 138 backwards out of the main tangs 116 which can then be sprung inwards and are no longer locked in catch 124. The springs 46 then force the plug member backwards withdrawing the pin contacts from the sockets. The movable shaft 138 is biased towards its locking position by springs 150, 152 having different resonant frequencies, spring 188 having a different frequency from either of these springs. Sealing against moisture is effected by bellows 158, rings 156, 82 and a resilient sleeve 59 (Fig. 2, not shown). Reengagement of the coupling halves and resetting of the locking mechanism is effected by suitable rotations of hand wheel 74.
Patent GB-305814-A (GB)
Title: Improvements relating to fire bars
IPC: F23H17/12
Filed: 1928-02-10
Abstract: 305,814. Whittaker, W. Feb. 10, 1928. Firebars are provided with projections B at each side of a central longitudinal web and inclined thereto at an angle of 45‹. The spaces between the projections are wider at the centre than at the ends of the bar. The projections on one side are opposite the spaces on the other side, and the centre web and side projections may be deeper at the rear than at the front.
Patent GB-830951-A (GB)
Title: Diet supplements containing dextran
Inventor: NOVAK LEO J
IPC: A23L29/269
Filed: 1958-02-08
Abstract: A diet supplement comprises native, water-soluble, unhydrolysed, substantially linear dextran of which 94 to 97% of the linkages joining the anhydroglucose units are 1,6-linkages. This is produced by the action of dextran-producing strains of Leuconestoc on sucrose present in an aqueous nutrient medium. Specified strains are Leuconestoc mesenteroides B-1146, B-1064, B-1119, B-512, B-1066 and B-1414 (NRRL designations).  It may be compounded in admixture with essentially sugar-free food elements which may be dispersed in an essentially sugar free, potable liquid or it may be compounded in capsules or be used as a water-soluble coating for chewable pellets or it may be admixed with special dietetic foods or condiments, e.g. table salt. Other dieting factors, e.g. vitamins and minerals may also be included.
Patent GB-592028-A (GB)
Title: Improvements in centrifugal castings
IPC: B22D13/02
Filed: 1942-03-30
Abstract: 592,028. Centrifugal moulding machines. SOC. ANON. DES HAUTS-FOURNEAUX ET FONDERIES DE PONT-A-MOUSSON. March 30, 1942, Nos. 4223 and 4224. Convention dates, March 15, 1941. [Class 87 (ii)] [Also in Group XXII] In the casting of long and thin tubes and the like by pouring steel, other metal or alloy, or other material 16 into the end of a cool centrifugal mould 5, the flow of material along the mould is so slow that solidificaton begins as soon as it enters the mould and material 22 successively flowing into the mould flows over the already solidified material S until it contacts the mould wall and solidifies. The flow of hot material 22 prevents the already solid material from increasing in thickness. This thickness is less as the mould is hotter or thinner or has a lower specific heat or conductivity or as the poured material is hotter, or more fluid or has a higher specific heat. More rapid pouring or increasing the longitudinal flow by tilting the mould or using a conical mould 30, Fig. 6, also tends to reduce the thickness of the casting. Thus to obtain at every point along the casting any desired thickness, the flow of poured material is continuously controlled, e.g. by varying the inclination of the mould or the level of the metal in the pot 15, and the conductivity of the mould is predetermined at every point. Increased initial longitudinal velocity may be obtained by using a rotating distributor 48, Fig. 7 secured to the mould, as shown, or separate and driven at any desired speed. It may be of metal or refractory, be rough or grooved &c. internally and have a conical or parabolic form. Local variations in the rate of cooling the mould may be induced by external ribs 56, Fig. 9, or by varying the thickness of the lining 59. The ends of the mould may be closed by lined members 11, 110, Fig. 4 the member 11 having a hole to pass the stream of material or the nozzle 14 of the pourer 15, Fig. 7. In a modification the member 11 is attached to the nozzle 14 instead of to the mould and in this case the nozzle may be eccentric to the mould. The mould may be formed wholly or in part with recesses, with formations to produce members for assembling and fitting the tubes, or may have any desired cross section or longitudinal section. The mould may also have a core in known manner to form a pipe socket. The Specification as open to inspection under Sect. 91 comprises also the casting of any liquid or pasty material which will pass to the solid form for any other physical or chemical reason. This subject-matter does not appear in the Specification as accepted.
Patent GB-456832-A (GB)
Title: Improvements in or relating to cellulose organic derivative sheeting
IPC: G03C1/795
Filed: 1935-02-11
Abstract: A film of a cellulose organic ester, such as the propionate, butyrate, stearate, acetate-propionate, acetate-butyrate, or acetate stearate, is rendered substantially non-curling by superficial hydrolysis of at least one surface.  The preferred application is in the manufacture of photographic film comprising one of the following: (1) a base of cellulose organic ester having a coating of gelatine emulsion on one side and superficially hydrolyzed on the other; (2) a base of an organic ester of cellulose having on one side a thin layer of nitrocellulose on which is superimposed a gelatine emulsion, and superficially saponified on the other side.  The saponification may be effected by floating the film on the surface of the saponifying liquid, by applying the liquid to the sheet by means of rollers, or by brushing or spraying the liquid on to the film. Suitable saponifying liquids are (1) caustic soda and water; (2) caustic soda, water, and alcohol; (3) sodium methylate and methyl alcohol; (4) sodium ethylate and ethyl alcohol; (5) sodium ethylate, ethyl alcohol, and dioxane, (6) sodium ethylate, sodium hydroxide, ethyl alcohol, and ethylene chloride; (7) ethylamine and alcohol; (8) tetra-ethyl ammonium hydroxide and acetone.
Patent GB-724939-A (GB)
Title: Improvements in tubulous vapour generating and superheating units
IPC: F22B21/34
Filed: 1953-02-16
Abstract: 724,939. Steam superheaters; water-tube steam boilers. BABCOCK & WILCOX, Ltd. Feb. 16, 1953 [Feb. 19, 1952], No. 4286/53. Classes 123 (2) and 123 (3). A water-tube steam boiler comprises a vertical furnace 11 fired by a spreader stoker 13 and lined with steam generating tubes which extend between lower headers 16, 25 and 26 and upper headers such as 17, the furnace gases discharging laterally from the upper part of the furnace through a pass locating a pendant, convection superheater 10 and then flowing through banks 12 of convection generating tubes to the stack. The tubes of banks 12 'extend between a lower water drum 20 and an upper steam and water drum 22 which also receives the steam-water mixture from the upper headers such as 17. Steam from drum 22 passes via pipe 38 through superheater 10 to the final outlet headers 37. As shown in Fig. 2, spaces 40, 40<SP>1</SP> are left between the outermost tubes 50 of superheater 10 and the walls of the lateral pass which are lined with steam generating tubes 14, the spaces each forming a gas by-pass for the superheater. To control the degree of superheat, the quantity of heating gas flowing through the superheater is regulated by adjusting the height of closure members 41 and 41<SP>1</SP> positioned in spaces 40 and 40<SP>1</SP> respectively, each closure member consisting of a tier of blocks 42, 44 supported on the furnace arch 30 and held in alignment bv the superheater and wall lining tubes, the blocks being inserted or removed through . openings 47 in the walls of the lateral pass.
Patent GB-470406-A (GB)
Title: Improvements in or relating to the manufacture of hydrocyanic acid
IPC: B01J23/34
Filed: 1936-02-13
Abstract: In obtaining hydrocyanic acid by the catalytic dehydration of formamide, the catalyst employed is a manganese oxide in massive or granular form, preferably a fused or sintered manganese oxide. The catalyst may be in the form of natural or fused pyrolusite; or may be obtained by fusing organic salts such as manganous acetate or oxalate or a flocculent manganese oxide in an oxyhydrogen flame, the fusion being cooled, crushed and screened.  The formamide may be vaporized by allowing the liquid to fall on a heated surface of particles of an inert material, e.g. silica, the vapour then being brought into contact with the catalyst at 400--700 DEG  C., say 550 DEG  C.  The Provisional Specification describes also the employment of the catalyst supported on kieselguhr or silica gel.
Patent GB-248359-A (GB)
Title: Improvements in dyeing apparatus
IPC: A42C1/08
Filed: 1926-02-16
Abstract: 248,359. B÷hm Br³der. Feb. 25, 1925, [Convention date]. Circulating or pass ing fluids through ma terials. - In apparatus for dyeing hat bodies the bath is introduced tangentially at the bot tom so as to pass through the container with an ascending rotary motion. The bodies a are supported on a perforated shape 1 within the container 2 to which the liquid is admitted by the tangential pipe 3 from a circulating pump, a pipe 6 returning the liquid passing through the bodies to the reservoir. Air escapes by a vent 4, to which a pipe 5 is connected to lead escaping liquid back to the reservoir. A number of containers may be served by one pump.
Patent GB-1126029-A (GB)
Title: Production of synthetic magnesia
Inventor: RASTRELLI JOEL E
IPC: C01F5/14
Filed: 1967-01-30
Abstract: 1,126,029. Boron containing magnesia; magnesium hydroxide. NORTHWEST MAGNESITE CO. 30 Jan., 1967 [1 March, 1966], No. 4465/67. Heading C1A. Two types of magnesia containing differing amounts of boron are obtained from an aqueous solution, e.g. sea water, containing magnesium values with boron as a minor contaminating constituent by precipitating the magnesium values from a first stream of the aqueous solution when boron values are carried down adsorbed on to the precipitate, thickening the precipitate by removing water from it, treating the thickened precipitate with a second stream of the aqueous solution when further amounts of boron are adsorbed on to the precipitate, thickening the resulting slurry to recover a solid comprising magnesium values containing boron, recovering the liquid phase also produced and precipitating the magnesium values contained therein to recover a magnesium slurry of lower boron content than that first recovered. The two forms of magnesia mentioned above are obtained in conventional fashion from the two thickened slurries. The preferred precipitating agents are lime, CaO, dolime, i.e. calcined dolomitic material and calcined dolomite. The magnesia grain obtained by dead-burning said solid phases may be used in the production of magnesia bricks.
Patent GB-1042441-A (GB)
Title: Improvements in or relating to jacks
IPC: B66F3/18
Filed: 1965-02-02
Abstract: 1,042,441. Screw jacks. DUFF-NORTON CO. Feb. 2, 1965 [March 6, 1964], No. 4466/65. Heading B8J. A heavy duty screw jack comprises a housing 14, with a base platform 24, in which is rotatably mounted a composite operating member composed of a worm gear 16 and a recirculating ball nut 18 driven by a worm-shaft 20 to actuate linearly a jack screw 22. The worm gear 16 is supported on a ball bearing ring 44 and has an inner, annular, screw guiding surface 50, Fig. 3 (not shown), which rotates with the worm gear 16 to provide uniform wear by side loading. The upper end of the ball nut 18 is supported in a housing cap portion 34 by an annular taper bearing 62. The cap portion 34 has an inner, annular, screw guiding surface 88 which cooperates with the similar surface 50 to present little or no side loading of ball bearing elements 66 of the ball nut 18.
Patent GB-1389527-A (GB)
Title: Pressure control valve
IPC: F15B1/027
Filed: 1973-01-29
Abstract: 1389527 Valves ROBERT BOSCH GmbH 29 Jan 1973 [9 Feb 1972] 4482/73 Heading F2V Fluid from a pump (not shown) is supplied through a bore 12 and a non-return valve 25 to an accumulator 21 until the pressure in a passage 22 is sufficient to displace a valve 6 to the right against a spring load and connect the pump to a return line 9 until the pressure in the accumulator falls to a lower value, the spring load being produced by the combination of a diaphragm spring 32 and a helical spring 36 to provide a snap-action. The springs are prestressed in the limiting position in which the pump supplies the accumulator. In a second embodiment, the valve is mounted in the same casing as a radial piston pump.
Patent GB-524954-A (GB)
Title: Improvements in resilient transmission joints
IPC: F16D3/76
Filed: 1939-02-10
Abstract: 524,954. Universal joints. JULIEN, M. F. A. Feb. 10, 1939, No. 4488. Convention date, Feb. 19, 1938. [Class 80 (ii)] A universal joint comprises a mass of resilient material 3 such as rubber arranged between and bonded to the surfaces of inner and outer spherical or cup-shaped members 2, 1 connected to driving and driven members. The inner member 2 has a substantially spherical part with centre C2 and radius r and with a cylindrical or slightly conical extension 22 which terminates outwardly in a flange 23, thus enabling it to be easily centred, e.g., at 27 and fixed by bolts 26 to a disc 6 rigid with a shaft 7. The outer member 1 has a centre C1 and radius R and is limited at one end by the plane Z, Z' and at the other end by an inwardly bent flange 11 which can be centred on a shaft, e.g., at 14. In Fig. 6, the outer member 1 instead of having an inner flange is formed with a sleeve or tube 11a which may have a force fit with a tubular shaft 5a or may be riveted or welded thereto. In a further modification, the outer member comprises an outwardly extending fixing plate or flange the diameter of which is less than the maximum diametral space occupied by the joint. In all forms of the joint, the inner member extends beyond the adjacent end of the outer member to provide a surface for attachment of the elastic material; further, the thickness of the elastic material diminishes towards the axis of the members and the surface thereof adhering to the inner member is equal to or greater than that adhering to the outer member.
Patent GB-468801-A (GB)
Title: Improvements in or relating to trawl nets
IPC: A01K75/06
Filed: 1936-02-15
Abstract: 468,801. Fishing. ROSS, F. C. Feb. 15, 1936, No. 4635. [Class 48] Ground rope rollers or bobbins for trawl nets consist of two or more dissimilar dished metal parts of circular transverse section welded to form an hermetically sealed shell of varying radius and asymmetric about the central plane, the line or lines of welding being disposed outside the tread. The parts 10, 11, Fig. 1, have overlapping edges 14, 15 welded at 16, 17 and are connected by welding to a tube 13 and end bushes 20. The edges 14, 15 may form a butt joint and be strengthened by an internal welded hoop. The tread 18 may be stiffened by an internal or external welded hoop, and in the latter case, Fig. 4, the part 10 may be shouldered at 29 to house the hoop 30 which may taper so as to merge into the wall of part 10. The tread may be cylindrical, conical, or curved, and the shell may be made in more parts than the two parts 10, 11. The internal hoops may be of channel, T-, H-, or L-section and may be used as ballast. A plug may be provided for additional internal ballast. The Provisional Specification refers to Specification 309,471, [Class 48].
Patent GB-470423-A (GB)
Title: Improvements in and relating to the assembler mechanism of typographical composing machines
IPC: B41B11/18
Filed: 1936-02-15
Abstract: 470,423. Type-bar-making machines. LINOTYPE & MACHINERY Ltd., and HAYWARD, A. S. Feb. 15, 1936, No. 4652. [Class 100 (iii)] Magazines; keyboards.-Mechanism for adjusting the assembler-entrance into operative relation with different magazines comprises a power-driven member and a key-controlled member adapted for frictional engagement therewith to actuate a power-transmission system whereby the entrance is adjusted. The mechanism, which is similar to the known keyboard cam-mechanism, comprises a rotating roller 1 and a cam 2 eccentrically mounted in a yoke 3, which is pivoted at one end and is normally held by a trip-dog 4 with the cam out of contact with the roller. The trip-dog is actuated by a finger-key 5 to release the yoke, so that the cam falls upon the roller and is rotated thereby. The yoke 3 raises a rod 8, which acts through ratchet-mechanism to turn a cam-disc 14 having a cam-groove 13 in one face. The cam acts through a lever 16 to adjust the entrance upwards and downwards alternately. The mechanism may be carried in a casing pivoted as a unit on the machine frame at one side of the keyboard, so that it can be swung outwards to give access to the unit and to permit swinging of the keyboard itself. The mechanism may be duplicated for machines having main and auxiliary machines, and the casing is then located between the two sets of magazines. To leave a path for the movement of the casing, the escapementreeds of the auxiliary magazines are mounted in a frame supported on a horizontal pivot, and are rocked into an inclined position by a lug on the auxiliary keyboard as it is swung outwards.
Patent GB-305996-A (GB)
Title: New system of wick for stearine candles and the like composed of a twist or plait or otherwise of viscous artificial silk
IPC: C11C5/00
Filed: 1929-02-12
Abstract: 305,996. Madrigali, O. Feb. 13, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts], Candles, night-lights, and tapers.-Wicks for candles, night-lights, tapers, wax-matches, torches, &c, are made wholly or in part of artificial silk.
Patent GB-311721-A (GB)
Title: Improvements in the mounting of vehicle wheels
IPC: B60G5/053
Filed: 1928-02-15
Abstract: 311,721. Jonkhoff, H. W. Feb. 15, 1928. Springs, arrangement of; equalizing load on wheels; wheels, arrangement of.-Wheels 4, 7 arranged on each side of the vehicle in front of and behind a common supporting member 1 are connected by arms 2 to pivots 2a spaced apart longitudinally. The weight of the vehicle is transmitted to the wheels through an equalizing spring 5 pivoted to the member 1. Each arm 2 may be connected to two wheels 7 through a pivoted equalizing axle 8.
Patent GB-239778-A (GB)
Title: Improvements relating to roll grinding machines
IPC: B24B5/16
Filed: 1925-02-20
Abstract: 239,778. Churchill Machine Tool Co., Ltd., and Asbridge, H. H. Feb. 20, 1925. Rollers, treating.-A cambered surface on a roll c is produced by tilting a grinding-wheel y by means of an inclined straight-edged bar and link motion about a shaft e as the wheel is fed axially. The grinding-wheel is mounted on a head x slidable in a base d pivoted on the shaft e to a slide b traversing a bed a. On the slide b are mounted cheek plates m carrying levers j, k connected by a lever i adjustably carrying at its lower end a bowl h contacting with the underside of an adjustable straight-edged inclined bar f mounted on the bed a. The lever i has a vertically grooved extension p straddling a roller g on an arm r pivoted to the cheek plates. The arm carries adjustable stops t, u coacting with the base d. An extension v of the lever indicates the position of the slide b. For parallel grinding both stops are withdrawn, and for concave and convex grinding respectively the stops a and t are set to contact with the bed d when the slide b is in mid-position. Movement of the slide to either side of the mid-position causes an arcuate movement of the extension p and the stop carrying arm r.