baber/WOPTO huggingface dataset:
Patent GB-640392-A (GB)
Title: Trolley conveyor bracket
IPC: B66C7/00
Filed: 1947-10-03
Abstract: 640,392. Elevated railways. TRIGGS, W. W., (Webb Co., J. B.). Oct. 3, 1947, No. 26639. [Class 104 (ii)] To facilitate the assembly of an overhead trolley of the type comprising a pair of identical brackets 10, Fig. 2, with trolley wheels 13 mounted at their upper ends to run on opposite sides of the lower flange 11 of an I-beam and their lower ends converging to pass through the centre opening of a link 22 of a driving chain wherein they are held in spaced relationship by flanges 20, Fig. 3, on their inner faces, the brackets are formed with an outwardly extending offset 32 in the central portion of their inner face below the seating for the chain link, whereby the upper end of one of a pair of brackets may be tilted outwardly, as shown in broken lines, for a distance sufficient to clear the flanges of the I-beam track while the lower end of the bracket is passing through the link. The inwardly projecting flange 20, down one edge of the lower portion of each bracket, engages the adjacent edge of the co-operating bracket, and in addition a rib 21 defines a margin extending along a length less than that of the flange 20. To hold the brackets rigidly in their assembled position a bolt 28 is passed through a hole in each bracket, the holes being laterally offset so that the tightening of the bolt urges the brackets through a relative lateral movement such that each flange 20 locks tightly against the adjacent rib 21. During assembly, however, and before the insertion of the bolt 28, the brackets are displaced relative to one another, as shown in Fig. 4, to enable them to be entered into the link. The trolley wheels 13 are journalled on cylindrical extensions 14 at the upper ends of the brackets, and a tapered recess 18 is formed in each of the latter to receive a lubricating gun which is applied to a nipple 19 formed as an integral part of the bracket. U.S.A. Specifications 2,250,167 and 2,398,062 are referred to.
Patent GB-186923-A (GB)
Title: Improvements in the manufacture of leavened bread
IPC: A21D8/04
Filed: 1922-10-03
Abstract: Relates to a bread-making process of the type described in Specification 156,635, the mould used in the present invention being Mucor Rouxii, which is preferably grown on cooked rice.  A seeding stock is used which is prepared by growing Mucor Rouxii, in a moist atmosphere, on cooked rice, slowly drying the rice and mycelium, whilst the mass assumes a dark colour due to the formation of spores, and grinding to a powder.  The mixed rice and seeding stock are spread on trays in layers.  The enzymes may be dissolved out of the cake-like mass before or after drying and the solution, with or without concentration, used in the dough batch or the cake-like mass may be used in powder form.
Patent GB-655916-A (GB)
Title: Method for preparing sugar and sugar syrup
IPC: C13B10/00
Filed: 1948-10-14
Abstract: In making sugar or syrups the raw juices obtained by diffusing beet or cane at temperatures below 50 DEG C, e.g. 35 to 38 DEG C, are acted on by ion-exchangers, e.g. a carbonaceous cation-exchanger which may be followed by a resinous anion-exchanger of the amino-formaldehyde type.  Sulphurous acid may be present during diffusion.  Colloidal impurities may be coagulated and/or precipitated (and so removed) before the juices meet the ion-exchanger by acidifying the raw juice, e.g. with sulphuric acid at 20 DEG C or with some of the effluent from the cation-exchange treatment.  U.S.A. Specification 2,403,177 is referred to.
Patent GB-152658-A (GB)
Title: Improvements in dynamo-electric machine commutators and similar electrical apparatus
IPC: H01R39/04
Filed: 1920-09-20
Abstract: 152,658. Volet, R. A. L. Oct. 13, 1919, [Convention date]. Commutators.-The segments of a commutator are each formed integrally with the riser from a single blank of copper. The blank is formed as shown in Fig. 3, the parts a<4> being tapered towards the outer edges. The segment is formed by folding the blank about its middle line around a mandrel so as to form an eye for the attachment of the wires c, the latter being firmly held in place by compressing and riveting the sides. In addition the wires and riser may be soldered together. The Specification as open to inspection under Sect. 91 (3) (a) states that the plates may be made by casting, and also that the risers may be hollowed out so as to act as the vanes of a fan. A modification is described in which the riser is provided with a tongue which is turned over a mandrel to form an eye for the wires. This subject-matter does not appear in the Specification as accepted.
Patent GB-861110-A (GB)
Title: Wick for an oil burner
IPC: F23D3/08
Filed: 1959-08-06
Abstract: 861,110. Wicks. KONINKLIJKE KAMPER EMAILLEFABRIEKEN N. V. Aug. 6, 1959 [Aug. 9, 1958], No. 26875/59. Class 75 (1). A wick 1 for an oil burner consists of a sleeve of oil-absorbing fabric, the sleeve being provided with at least two incisions 2 extending longitudinally from one end of the sleeve and over part of the length of the sleeve while the position of the sleeve not provided with incisions is provided on the inside with a lining 3 of fabric, at least the lower-edge 5 of the lining being fastened to the sleeve by means of a series of fastening elements 6 which extend obliquely across to the lower edge, and engage both the unlined and the lined portions of the sleeve, the distance between the fastening elements being smaller than or equal to the length of the elements. The series of fastening elements may comprise the stitches of zig-zag stitching, staples or rivets.
Patent GB-1278345-A (GB)
Title: Third order compensation in repeatered transmission lines
Inventor: NARAYANAN SUNDARAM
IPC: H04J1/12
Filed: 1970-06-04
Abstract: 1278345 Repeaters; transistor amplifying circuits WESTERN ELECTRIC CO Inc 4 June 1970 [9 June 1969] 26963/70 Headings H3T and H4R A transmission system for transmitting a plurality of signals in multiplex form includes a plurality of serially connected repeater amplifiers which inherently generate third order intermodulation signals wherein some of the repeater amplifiers are adapted to generate third order intermodulation products which at least partially cancel the products generated by the other amplifiers. Each of the repeater amplifiers includes at least a final transistor amplifying stage whose load resistance is varied to alter the phase angle of the third order intermodulation products. To change the phase angle by an angle of 120-240 degrees the load resistance must be at least doubled and use of repeater amplifiers giving the required conditions also reduces the power requirement. As shown the two types of repeater amplifiers A, B alternate consecutively along the line but it is possible to use a plurality of type A amplifiers followed by a plurality of type B amplifiers to give the required performance. An equivalent circuit for a repeater amplifier in a common emitter configuration is discussed, Fig. 4 (not shown). In Fig. 6 (not shown) an arrangement for investigating the change in third order product phase angle with changes in transistor bias voltage and load resistance is shown.
Patent GB-390159-A (GB)
Title: Improvements in or relating to electric motor controllers
IPC: B60L15/04
Filed: 1931-09-28
Abstract: 390,159. Master control of motors. WEST & CO., Ltd., A. and JOHNSON, C., Lewes Road, Brighton. Sept. 28, 1931, No. 26988. Drawings to Specification. [Class 38 (iii).] In a system employing sequentially operated contactors to complete a series circuit for two motors, and thereafter to exclude series resistance, rearrange the motors in parallel each with its series resistance and again exclude the resistance, two relays are used to control the sequential operation, each relay having a shunt winding and a series winding. Each series winding is in circuit with one of the motors, so that during parallel operation the series resistance is excluded in steps alternately from each motor with a pause between each step. The system includes a reversedcontroller and a drum with first series, full series, first parallel and full parallel positions. Sequential operation of the contactors is attained by energizing their windings through the shunt coil of one of the relays and normally closed contacts of the other. Upon operation of each contactor its winding is maintained by inclusion in a common series maintaining circuit, the circuit for the corresponding shunt coil is broken and a circuit prepared for the shunt coil of the other relay through the winding of the next contactor to be closed. This circuit is completed when the surge in the series winding of the relay, which was associated with the contactor just operated, subsides and allows the relay contacts to close
Patent GB-245245-A (GB)
Title: Improvements in or connected with conveyers of the jigging type
IPC: B65G27/00
Filed: 1924-11-13
Abstract: 245,245. Mavor & Coulson, Ltd., and Dey, G. Nov. 13, 1924. Jigging conveyers.-The bottom of the trough B is provided with isolated ratchet steps D which may be fixed by riveting, bolting, keying, welding, &c., or formed integrally with the trough by stamping, forging, casting &c. The steps may be on a bed plate placed in the bottom of the trough.
Patent GB-1386667-A (GB)
Title: Sintering hard metal alloys
IPC: B22F3/10
Filed: 1972-06-09
Abstract: 1386667 Sintering furnace WICKMAN WIMET Ltd 22 May 1973 [9 June 1972] 27121/72 Heading F4B [Also in Division C7] Cemented carbides are sintered under a pulsating non-oxidizing or reducing gas, e.g. H 2 ŒN 2  or inert gas optionally with methane in a furnace comprising a carbon susceptor 4, insulating material 5, silica sleeve 6 and induction coil 7. The furnace is connected to gas inlet 9, vacuum connection 12 and pressure sensors 13, 14 are connected to valves in inlet 9 and connection 12. The compacts are stacked on trays 15 and after evacuating, H 2  is introduced via 9, to a pressure of 700 torr. and the compacts are heated. At 700 torr. the valve in inlet 9 is automatically closed and the vacuum line 12 is opened to reduce the pressure to 100 torr. The cycling is continued for 12 cycles while heating up to 900‹ C. The H 2  is then evacuated and normal vacuum sintering is then effected.
Patent GB-839174-A (GB)
Title: Improvements relating to the mounting of electrical fixtures
Inventor: CARLSON ERNEST REINHOLD
IPC: H02B1/40
Filed: 1958-08-25
Abstract: 839,174. Switch cases. HARVEY HUBBELL Inc. Aug. 25, 1958, No. 27169/58. Class 38 (5). [Also in Group XXXVI] The body 11 of a fixture, such as a switch or duplex socket 10, which is mounted in a wall box by means of a U-shaped yoke 18 with lateral ears 20, has ribs 14 formed on the end walls thereof which are received in apertures 25 in the limbs 19 of the yoke whereby the body and yoke are retained together. Additional securing means, such as a rivet located in a central hole 29 in the body may be provided for the yoke which is initially sprung into position over the ribs 14, the bottom cover 16 of the body being cut-away at 27 for this purpose. The yoke rests in a groove in the body and cover.
Patent GB-953800-A (GB)
Title: Improvements in or relating to vacuum electric arc furnaces
IPC: H05B7/00
Filed: 1960-08-05
Abstract: 953,800. Magnetic deflection of arcs. W. C. HERAEUS G.m.b.H. Aug. 5, 1960 [Aug. 5, 1959], No. 27228/60. Drawings to Specification. Heading H5H. A vacuum electric arc furnace, having at least one magnetic coil mounted with its longitudinal axis substantially perpendicular to the longitudinal axis of the melting crucible of the furnace, is connected to apparatus for controlling the current supply to said at least one magnetic coil in order to reciprocate the electric arc and move it rapidly enough to cause substantially no rotary movement of the molten metal. A single fixed or vertically adjustable coil may be mounted so that its magnetic field extends over the whole of the crucible. Alternatively a plurality of fixed or adjustable coils or groups of coils may be mounted one above the other and switched in as required. The coils of a group may be connected together in pairs and may be secured to an iron ring forming a magnetic shunt.
Patent GB-144551-A (GB)
Title: Improvements relating to the preheating of air supplied to the furnaces of water tube boilers
IPC: F23M20/00
Filed: 1919-11-05
Abstract: 144,551. Yarrow, H. E. Nov. 5, 1919. Regenerators.-In connexion with a watertube boiler, means are provided for preheating the air supplied to the furnaces consisting of tubular regenerators F<1>, F<2> provided with tubes f<1>, f<2>, through which gases from the furnace pass into the uptake G. Cold air is drawn into pockets H at the sides of the boiler by mechanically-driven fans h, or by a fan arranged in the funnel, and thence passes through compartments at the ends of the boiler and passages Q<1>, Q<2> to passages J<1>, J<2> leading to the baffled space enclosing the regenerator tubes. The air passes from the regenerators into chambers N<1>, N<2> communicating with conduits O<1>, O<2> leading to the furnace. Specifications 138,050 and 144,167, [Class 122 (iii), Steam engines, Kinds &c.], are referred to.
Patent GB-670811-A (GB)
Title: Improvements in or relating to the transportation of granular material in bulk
IPC: B60P1/60
Filed: 1949-10-25
Abstract: 670,811. Unloading vehicles by suction nozzles. NATIONAL FITCH CORPORATION. Oct. 25, 1949. [June 24, 1949] No. 27378/49. Class 78 (iv). The electric motors on the cargo vehicle of Specification 598,727 are eliminated and the drive for reciprocating the suction nozzles derived from a motor at the unloading terminal. The chains 31 (Fig. 1) corresponding to the chains 35 of Specification 598,727 are driven by sprockets 38, 40 and a chain 39 from shafts 41, 42, each of which operates the nozzle in one of the two compartments into which the vehicle body is divided by a central bulkhead housing the two shafts. An idler sprocket 45 on the lower shaft 42 guides the chain 39 driven by the upper shaft. Either of the shafts 41, 42 may be coupled to a motor 49 at the unloading terminal by a splined and universally jointed shaft 47 shaped to engage squared ends 44 on the shafts 41, 42. To unload both compartments together the shafts 41, 42 may be joined by removable meshing gears 48. Both ends of the shafts 41, 42 are accessible from outside the vehicle : the ends may project as shown or may be disposed in recesses in the body provided with doors. Openings 43 in the bulkhead accommodate the chains 39 and provide access to the bearings of the shafts 41, 42. The motor 49 is preferably mounted on a pallet 45 so that it can be moved about on the unloading platform 46 by a lift truck. The suction nozzles are preferably as described in Specification 670,844.
Patent GB-603369-A (GB)
Title: Improvements in and relating to dolly tubs
IPC: B23K31/00
Filed: 1945-10-19
Abstract: 603,369. Making wash-tubs; curled edges of sheet metal. SIMS, R. S. C. Oct. 19, 1945, No. 27453. [Class 83 (ii)] [Also in Groups VIII and XVII] An edging-member in the form of a plain hoop 12 having an inwardly-rolled top edge 13 is fitted externally around the top of a wash-tub 10 having vertical corrugations or flutes 11, and the parts are then acted upon in such a way as simultaneously to remove the corrugations or flutes 11 in the tub in the region of the hoop, and form one or more horizontal swagings or corrugations 15, 15a in both the tub and the hoop. The swagings may be pressed either inwardly or outwardly of the tub, and, where more than one swaging is used, they may be both inwardly and outwardly formed. If desired the tub and hoop may be welded together as shown at 16, 17,
Patent GB-699189-A (GB)
Title: Liquid cleaning composition
IPC: C11D3/43
Filed: 1950-11-10
Abstract: A liquid cleansing composition comprises a dispersion of a potash soap of tall-oil and an organic solvent consisting of at least 50 per cent by weight of an aromatic hydrocarbon and possibly further ingredients in water, the proportions between the soap and organic solvent being such that the solvent is kept in stable collodial solution in the soap.  The saponification of the tall oil is preferably incomplete.  The organic solvents specified comprise benzene, toluene or xylene, which may contain a proportion of a chlorinated hydrocarbon such as carbon tetrachloride or trichlor-ethylene.  If desired, oxygenated organic solvents may be mixed with the solvent such as ketones or acetates, particularly butyl acetate.  Suitable proportions of the ingredients are specified.  The dispersions may also contain a basic substance compatible with their stability, such as sodium carbonate or triethanolamine; or a substance reducing the surface tension thereof such as sulphonates or amino-compounds thereof, particularly isopropyl naphthalene sulphonate; or a water-softening agent such as trisodium phosphate.  The dispersions are used diluted with water in a quantity from 10 to 50 times the quantity of dispersion.  The compositions may be used for scouring floors, dishes, textiles, hands &c. particularly for removing grease.
Patent GB-385684-A (GB)
Title: An improved apparatus for cleaning, polishing and like purposes
IPC: A47L11/38
Filed: 1931-10-03
Abstract: 385,684. Cleaning and polishing devices. TURNER, W. H., 23, Ellesmere Road South, Chorlton-cum- Hardy, Manchester. Oct. 3, 1931, No. 27551. [Class 19.] A portable apparatus for cleaning and polishing purposes comprises a rod a carrying at one end an electric motor i and at the other end a gear box b containing reduction gearing for transmitting rotation to a transverse shaft h provided with rotary polishing devices. The gear box contains a worm drive, the worm shaft f<2> being connected to a shaft j which is rotatably mounted in the rod a and is connected to the armature shaft of the motor i. The shaft h is provided with clutch portions adapted to engage corresponding portions s on the devices and with a groove adapted to be engaged by a spring-pressed plunger r. A bracket n provided with blocks o of polishing powder is adjustably mounted on the rod a. In place of the blocks a pad may be provided, the pad being saturated with liquid polishing medium from a reservoir. Change speed gearing may be provided in the gear box b or at the motor. The rod a is provided with handles x and may have an extension v. The polishing device comprises a core q, Figs. 4 and 5, formed on its periphery with longitudinal keyhole slots to receive doubled flaps z of felt, hair, fibre, rubber, leather, velvet, cotton fabric, or like material, the flaps being held in place by rods z<2>. The flaps may be slit as shown at z<1>. The core q is hollow to contain polishing liquid which passes out through holes u. Specification 385,924 is referred to.
Patent GB-891642-A (GB)
Title: Terpene containing polymers
IPC: C08F36/00
Filed: 1960-08-09
Abstract: A copolymer of an endo-diene bicyclohydrocarbon and a C10H16 terpene is prepared by reacting the mixture in the presence of a Friedel-Crafts catalyst. Bicyclo-(2.2.1)-2.5-heptadiene and alpha and beta-pinenes, turpentine and dipentene are specified monomers, while aluminium chloride, boron trifluoride, zinc chloride and tin tetrachloride are specified catalysts.  Solvents such as gasoline, petroleum ether, cyclohexane, heptane, benzene, toluene, methyl chloride, methylene chloride, chloroform, and tetrachloroethane may be present or absent and the polymerization may take place at -10 DEG C. to 70 DEG C.  Specification 891,643 is referred to.
Patent GB-723074-A (GB)
Title: Improvements in or relating to electric motor control systems
IPC: H02P7/06
Filed: 1952-11-03
Abstract: 723,074. Control of D.C. motors. GENERAL ELECTRIC CO., Ltd., and LOSTY, H. H. W. Nov. 3, 1953 [Nov. 3, 1952]', No. 27639/52. Class 38 (3) A motor having an armature 1 is operated at low speed by opening a switch 4 whilst the field winding 2 is fully excited, the armature being energized to an extent dependent upon the voltagedrop across resister 5B. Since the value of this resistance is low compared with the apparent resistance of the armature 1, there is substantially no change in this voltage when the armature current changes with varying motor load. For full speed operation, resistor 5A is by-passed by closing switch 4 and the armature is energized at full supply voltage. A rectifier 6 prevents current flowing through the switch 4 to the resistor 5B so that the switch carries only the armature current. The arrangement is such that there is very small change in the supply current when the switch 4 is closed to bring the motor to full speed. In a modification the rectifier is replaced by switch contacts which are normally closed and are opened after the switch 4 closes.
Patent GB-954212-A (GB)
Title: Production of calcium dichloroisocyanurate
Filed: 1960-08-10
Abstract: A hydrate of calcium di(dichloroisocyanurate) is produced by mixing in an aqueous medium either (a) dichloroisocyanuric acid and calcium oxide, hydroxide, or carbonate, or (b) chlorine and tricalcium diisocyanurate, the amount of aqueous medium being such that there is formed a slurry of the solid reactant or reactants in the medium, and the rate of addition to and admixture of the reactants is such as to provide and maintain a pH value of 4.5 to 7.5 in the reaction mixture. Where the reaction temperature is 10 DEG  to below 35 DEG C., the hexahydrate is formed, while the tetrahydrate is formed at 37 DEG  to 65 DEG  C., and a mixture of the two hydrates at 35 DEG  to 37 DEG  C. The hydrate may be dehydrated to the anhydrous salt by drying, e.g. at 110 DEG  C.  In (a) at least 15, e.g. 20-50, molecular proportions of water per mol. dichloroisocyanuric acid may be used as such or in admixture with either or both reactants, e.g. 50 to 85% dichloroisocyanuric acid or CaO, Ca(OH)2, or CaCO3 and the remainder water. In (b) an aqueous slurry of 5 to 45 parts tricalcium diisocyanurate in a 100 parts H2O is reacted with gaseous or liquid Cl2 introduced below the surface with agitation.  The reaction vessel may be initially charged with water, a solution of CaCl2, or a solution of the product which may be the mother liquor from a previous reaction. In a continuous process, aqueous slurry is removed at such a rate as to maintain the volume constant.  After separation of the chloroisocyanurate, the mother liquor may be concentrated at 45 DEG  to 65 DEG  C. under reduced pressure and cooled to 5 DEG  C. to recover further salt.  The tricalcium diisocyanurate may be prepared by mixing calcium hydroxide and isocyanuric acid or monocalcium diisocyanurate at 20 DEG  to 30 DEG  C. in an aqueous medium.  The product can be used directly as a water-wet solid.