baber/WOPTO huggingface dataset:
Patent GB-480590-A (GB)
Title: Method and apparatus for the cooking or gas treatment of flowing substances, particularly cereals such as maize
IPC: F26B17/14
Filed: 1936-07-23
Abstract: 480,590. Delivering material from hoppers. BARNSDALE, F. H. July 23, 1936, Nos. 20454/36 and 17035/37. [Class 78 (i)] [Also in Groups I and XIII] Apparatus for treating loose flowable material such as grain or granular minerals with steam, warm air, gases, insecticides or heat comprises a tower or bin 1 in which are arranged a number of inverted-V-section supporting members 7 sheltering gas pipes fed by supply pipes 9 and also at the bottom of the bin a sloping series of transverse members 3 through the openings between which the material under treatment can fall on to the upper reach of a conveyer chain 6 that moves continuously across the floor of the bin towards the raised end of the series of transverse members 3. The conveying apparatus is preferably of the type described in Specification 159,236, [Class 78 (iv)]. To ensure the flow of the material being regular the bin may increase in cross section towards its base or the transverse members 7 may diminish in width towards the bottom of the bin. The conveyer chain 6 is driven by a sprocket on a shaft 6B actuated from a shaft 11 of a gear box to which power is supplied from a motor 14 by a belt 13. The shaft 11 also drives a governor 15A controlling the supply of treating fluid to the bin, a feeding device 16A for the material to be treated and also, if necessary, a device 16B for supplying water to the material. To control the speed of the motor 14 in accordance with the demand the treated material is taken by an elevator 21 to a conveyer 22A of which the return stretch 22B is adapted to carry back excess or unconsumed material and to discharge it into a hopper 18 through which it falls. This hopper is suspended by a cable 17 and counter balanced by a weight 17C the movements of the cable due to fluctuation in the amount of material in the hopper at any instant actuating a control device 17A on the motor. In a modification the hopper carries a vane that is moved between a source of light and light sensitive cells the current output from which actuates means for controlling the speed of the motor.
Patent GB-697060-A (GB)
Title: Process for recovering vitamin b and vitamin b-like substances from a montmorillonite adsorbent
IPC: A61K31/00
Filed: 1951-08-30
Abstract: Vitamin B12 and vitamin B12-like substances are recovered from a montmorillonite adsorbent by eluting said vitamin and vitamin-like substances with an aqueous solution having a pH in excess of 6 and containing an anion of a nitrogen-containing acid having cyanide, thiocyanate or nitrite ions.  As the montmorillonite adsorbent there may be used bentonite or fuller's earth.  Preferably the adsorbate is intimately contacted with an aqueous solution having a pH of 7 to 9.
Patent GB-1461832-A (GB)
Title: Decomposition of an aldehyde to acetic acid and methacrolein
IPC: C07C45/67
Filed: 1974-05-09
Abstract: 1461832 Purifying acetoxybutyraldehydes GENERAL ELECTRIC CO 9 May 1974 [21 June 1973] 20492/74 Heading C2C 2 - Methyl - 3 - acetoxypropionaldehyde is eliminated from an isomeric mixture of 4- and 2-acetoxybutyraldehydes and 2-methyl-3-acetoxypropionaldehyde by heating the mixture in the presence of a catalyst which is a tertiary amine, a silica, an alumina, a mixture of silica and alumina or a zeolite, to decompose the 2- methyl-3-acetoxypropionaldehyde to acetic acid and methacrolein and removing these. The isomeric mixture may be obtained by hydroformylation of allyl acetate (Specification 1,461,831).
Patent GB-733118-A (GB)
Title: Emulsifiers for butadiene-acrylonitrile copolymerisation
IPC: C08F36/04
Filed: 1953-07-24
Abstract: In the emulsion copolymerization of butadiene and acrylonitrile at a temperature below 85 DEG  F. with a water-soluble persulphate catalyst, such as potassium persulphate, and a water-soluble ferrous promoter, such as ferrous sulphate, the emulsifier comprises a major proportion of a synthetic emulsifier which remains water-soluble on acidification and a minor proportion of potassium palmitate and/or stearate.  Synthetic emulsifiers specified are the sulphated or sulphonated fatty alcohol types such as alkylated naphthalene sulphonate condensed with formaldehyde.  In examples the reaction mixtures are made alkaline with potassium hydroxide and contain tertiary mercaptans as modifiers.  The reaction is stopped with hydroquinone.  On acidification of the latex the synthetic rubber obtained is substantially free from soap curds.  Specification 703,008 is referred to.
Patent GB-1146235-A (GB)
Title: Hydraulically actuated clutch with centrifugal ball valve means
IPC: F16D25/0638
Filed: 1967-05-04
Abstract: 1,146,235. Friction clutches. TWIN DISC CLUTCH CO. 4 May, 1967 [5 May, 1966], No. 20753/67. Heading F2C. In a friction clutch wherein hydraulic engaging pressure is supplied through a radial passage 1 to a clutch servo C, a centrifugally operated ball valve 4 is provided in the passage 1 and at least balances the centrifugal pressure head in the passage 1. The centrifugal force on the ball may exceed the centrifugal pressure head in the passage 1 to provide additional speed responsive control of the clutch.
Patent GB-275030-A (GB)
Title: A new or improved cultivator or like implement
IPC: A01B63/24
Filed: 1926-08-25
Abstract: 275,030. Coventry, A. H. S. Aug. 25, 1926. Expanding frame implements; adjusting parts; tools, mounting rigidly.-In a cultivating implement in which the distance between the tines, shares, or cutting-tools is adjustable, the longitudinal members h carrying the tools are connected to a collar b movable along the beam a and to double arms m pivotally connected to tht rear of the beam and movable on a circular guide n forming part of the frame. The adjustment is made by means of a hand-lever d connected to the collar b by a link c. The mechanism is locked by a spring-controlled notched bar e pivoted on the lever d and engaging a projection g on the link c. The bar e is operated by a rod f connected to a lever at the upper end of the lever d. The shares, tines, &c. are provided with sockets adapted to fit on the tapered ends of curved brackets j i adjustably mounted on the members h.
Patent GB-353668-A (GB)
Title: Improvements in steel pinned covering for carding and rag tearing machines, cotton waste openers and analagous machines
IPC: D01G15/90
Filed: 1930-07-11
Abstract: 353,668. Lags for jute-carding, and rag-tearing machines. LUCEY, W. F. and POUNCEY, W., Tower Works, Globe Road, Holbeck, Leeds. July 11, 1930, No. 20984. [Class 120 (i).] In metal-faced wooden lags for carding and ragtearing machines, cotton waste openers &c. the countersunk holes 5 for securing the metal facing 1, Fig. 1, and the countersunk holes 4, Fig. 2, through which pass the screws for securing the lags 2 to the cylinders are formed by pressing or punching the metal around the holes into the wood or into recesses therein.
Patent GB-300231-A (GB)
Title: Art of rolling thin sections and means therefor
IPC: B21H1/02
Filed: 1927-08-09
Abstract: 300,231. Withers, J. S., (Smith, J. W.). Aug. 9, 1927. Rolling wheels and discs.-In a rolling mill for rolling thin metal sections, particularly the .blanks required in the production of integral hub and disc type wheels for motor vehicles and the like, a rotary forming die 5 co-operates with radially-moving rolls 20, the surface speed of the forming die being maintained equal to the peripheral speed of the rolls throughout the operation. The die 5 is secured to a head 8 mounted in a housing 6 vertically adjustable at 7, the head being retained by a cappiece 9 and provided with a thrust bearing 10. 'The die is rotated by a variable-speed electric motor 11 supported over the housing 6 in a mounting 13. The blank 16, Fig. 2, is located by a pin 17 and held by a stud 18 mounted in ahead 19. The roll-shafts 21 are supported in bearings 22, 23 mounted in housings 24, 25 carried in trunnion supports A, the ends of the housings having cap pieces 27 fitted with electric motors 28, 29 for driving the rolls. The motors 28, 29 are compound wound, and are designed to run at constant speed with constant torque. The motor 11 driving the die 5 is shunt wound, the field being controlled by a rheostat 34, the arm 39 of which is connected by a rod 36 to the casing 25. Thus during operation, as the casing 25 moves about its trunnion while the rolls move outwardly over the blank, the rheostat arm operates to strengthen the field of the motor 11. The speed of this motor is thus progressively decreased and the torque increased so that the torque of the motor 11 always balances that of the motors 28, 29, while the surface speed of the die at the point of operation is maintained equal to the peripheral speed of the rolls. The curvature of the die 5 is so arranged that the finished blank is of taper section as shown in Fig. 1. The finished section may be converted by subsequent stamping operations to the form shown in Fig. 4 for use as an integral hub and brake drum unit for spokeless wheels.
Patent GB-460236-A (GB)
Title: Improvements in or relating to electron discharge devices and circuit arrangements incorporating the same
IPC: H01J19/02
Filed: 1935-07-24
Abstract: 460,236. Thermionic valves. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. July 24, 1935, No. 21063. Convention date, July 31, 1934. [Class 39 (i)] A valve has a cathode, a screen electrode surrounding the cathode, an anode inside the screen, an electrostatic shield between the anode and the cathode, this shield being so con. structed and arranged that the electron stream to the anode traverses the screen, a second anode outside the screen and a control electrode between the second anode and the screen electrode. As shown, an indirectly-heated cathode 15 is surrounded by a screen grid 19 which encloses a pair of flat anodes 20 connected together, and a pair of shields 22 having the same length as the cathode and so arranged that electrons from the cathode 15 cannot reach the anodes 20 without passing through the screen-grid 19. The screen-grid 19 is surrounded by a control-grid 18, optionally a screen-grid 17 connected to the grid 19, and an anode 16. The anodes 20 may be rod-like and may be surrounded by suppressor grids. The shields 22 may be curved and the screen-grid 19 may have curved portions adjacent them. The valve may be used in a push-pull circuit, the anodes 16, 20 being connected to opposite ends of the primary of an output transformer.
Patent GB-1451958-A (GB)
Title: Electrical switches
IPC: H01H1/54
Filed: 1973-05-03
Abstract: 1451958 Switch contacts; heavy current switches M T E COMPONENTS Ltd and N H OLLEY 21 Feb 1974 [3 May 1973] 21099/73 Heading H1N A switch, wherein electromagnetic force normally urging the contacts closed is removed as the contacts move to open, comprises conductive means 48, 44 supporting the fixed contact 42 such that current flowing therein when the contacts are closed, Fig. 3, generates an electromagnetic field  urging the fixed contact 42 against the moving contact 40, and when the contacts are broken the current path is mechanically altered, Fig. 4, in such a manner as to substantially remove the said electro magnetic field. As shown the contact-carrying member 44 is  hinged at 46 to the conductive member 48 which is mounted on insulation 51 A hole 60 is large enough to keep spring 56 insulated from member 48. A neck-like portion of member 44 passes through an aperture 52, and terminates in a crosspiece 54. When moving contact 40 engages contact 42 current flows as indicated in Fig. 3 and electrodynamic force acts on contact arm 44 to urge the contacts together. When contacts 40, 42 open, spring 56 urges the crosspiece 54 into contact with member 48, Fig. 4, thereby short-circuiting the current loop of Fig. 3 and avoiding deleterious effect of the electromagnetic field thereof on the arc between contacts 42 and 40. A plurality of moving contacts 40 may be mounted on a channelshaped member (10), Fig. 1 (not shown) arranged for linear movement upon rotation of a shaft (12) to open and close an isolator switch. Rotation of shaft (12) moves two bars (20, 22) in opposite directions to cam the member (10) by means of a pair of pins (28, 30) thereon which engage in slots (24, 24', 26, 26') in the bars (20, 22). Six sets of contacts as shown in Figs. 3 and 4 may be fitted to provide a double-break three-phase isolation switch. Each pair of movable contacts on member (10) may be connected directly or by respective fuse links to provide moving contact bridges.
Patent GB-1186595-A (GB)
Title: Improvements in Devices for Holding a Sample to be Irradiated in a Nuclear Reactor
IPC: G21C1/30
Filed: 1967-05-05
Abstract: 1,186,595. Reactors. COMMISSARIAT A L'ENERGIE ATOMIQUE. 5 May, 1967 [23 May, 1966], No. 21121/67. Heading G6C. In a water moderated nuclear reactor, the sample fuel rod 2 is irradiated by the reactor core 9. The intensity of the radiation incident upon the rod 2 is adjusted by lateral displacement of the rod relatively to the core, thereby increasing the amount of moderator between the two. The compartment 5, containing water and the element 2, is pivoted about the axis 6 by the arm 10. The rod 2 is freely mounted at the ball joint 3 and moved laterally away from the core 9 as the compartment 5 is turned anticlockwise about 6. The radioactivity at the rod is determined by argon gas flow in sleeve 37.
Patent GB-1052634-A (GB)
IPC: D06N3/00
Filed: 1962-06-01
Abstract: 1,052,634. Laminates and laminating. IMPERIAL CHEMICAL INDUSTRIES Ltd. May 31, 1963 [June 1, 1962], No. 21194/62. Heading B5N. A permeable laminate is made by passing a substrate 1, coated with a plastic composition containing a blowing agent, through a heater 1, 2 to activate the blowing agent and attaching a multiplicity of textile yarns to the coated substrate whilst it is hot by means of rollers 5, 6. Roller 5 may have a corrugated surface. Suitable plastic compositions are polyvinyl or polyvinylidene chloride and may contain plasticizers, pigments and may be compounded with nitrile rubber, polyethylene or butadiene styrene resins, and suitable substrates are knitted, woven or felted fabrics. The textile yarns may be of wool, cotton, regenerated cellulose, gimp, polyester or other textile fibres and may be in the form of a fabric or single threads arranged parallel or in a pattern. The laminate may be used for upholstery.
Patent GB-185604-A (GB)
Title: Improvements in or relating to self-levelling beds, tables, gun platforms, and the like
IPC: B63B29/12
Filed: 1921-08-10
Abstract: 185,604. Doman, J. P. Aug. 10, 1921. Self-levelling and suspension apparatus.-Relates to a self-levelling apparatus for beds, berths, tables, operating-tables, gun platforms, and similar articles adapted to be used in ships, of the type in which the article is supported at four or more points by members @ung from standards, opposite members being connected together by rods or like means. The standards are arranged on the deck in oppositelydisposed pairs as 2, and the shafts 3 from which the depending members 5, which carry the article 9 on rollers 7 on the upwardly inclined arms 6, are hung, have rollers 4 on which the adjacent curved ends 11 of the article 9, or a platform supporting the article, may rest. The rollers 7, 4 are transversely curved. In the case of a gun platform 15, a universal support or bearing 13, is provided under the normal centre of gravity and the supports are arranged radially. Locking-means such as a pivoted plate 12 may be employed to lock the depending members 5 in a desired position.
Patent GB-427377-A (GB)
Title: An improved fastening for slit openings in garments
IPC: A41B1/10
Filed: 1934-07-20
Abstract: 427,377. Sliding - clasp fastenings. ROBERTS, H. L., ROBERTS, R. G., and ROGERS, A. J., 5, Cork Street, Burlington Gardens, London. July 20, 1934, No. 21291. [Class 44] [See also Group VII] For the butting closure of slit openings, such as those below the knee of riding breeches, a sliding-clasp fastener has one stringer 3a together with a protective backing 5, attached at the edge of one side 1 of the slit, while the other stringer 3b is attached underneath the other side 2 of the slit and at such a distance from the edge that the fastener is overlapped and the free end of this other side of the slit can be fastened to the backing 5 by a press stud 9, 10, which also secures the slider 6 of the sliding-clasp fastening by passing through an aperture in a step-shaped pull-tab 8. The invention can be applied to fly and pocket openings, leggings, and cushion covers.
Patent GB-427721-A (GB)
Title: Improvements in electric power transmission systems
IPC: H02J3/18
Filed: 1933-07-29
Abstract: 427,721. Transmission line arrangements. TAYLOR, A. M., 53, Harborne Park Road, Birmingham. July 29, 1933, Nos. 21332 /33, 23806/33, 24877/33, 32824 /33, 3049 /34, and 21951/34. [Class 38 (iv)] Boosting by static transformers.- In a three phase electric transmission system the power factor of the load and the reactance drop in the line and in apparatus on the system are compensated by injecting a quadrature E.M.F. into the line by means of one or more quadrature booster transformers the E.M.F. of which is controlled in magnitude in accordance with the line current. The wattless currents demanded by the booster transformers are supplied by a separate wattless current generator at the generating station. In a comparatively short line there may be a single booster transformer situated at the generator end of the line whilst in a longer line a further booster transformer may be arranged at the substation end of the line. In the case of a long line booster transformers are arranged at intervals along the line. The booster transformer employed at the substation end of the line may comprise a primary 15 connected in series in the line on the H.T. side of the substation transformer 17, 18 and a secondary 16 in series on the secondary side of the substation transformer the ratios of the boosting and substation transformers being different and the magnetic circuit of the booster transformer being incomplete. In order to avoid the passage of wattless currents through the generating station transformer 1 the booster at the generating station comprises a delta connected primary 12 in parallel with the main transformer primary and a secondary comprising two coils, one on each phase, in series reversed connection connected in series with the H.T. side of the line and tap controlled in accordance with the line current. These connections are repeated for each phase of the system. The boosters employed at intervals along the line comprise transformers having star connected primaries connected to the line and tap controlled secondaries, two series connected opposed phase windings of which are connected in series in each line so as to inject the requisite quadrature E.M.F. The secondary taps are controlled in accordance with line current. Alternatively the tap controlled secondaries may feed into the untapped primary of a transformer the secondary of which is in series in the line. Where danger of phase "twist" due to abnormal load currents is likely to occur the quadrature booster transformers are provided with extra secondary turns which are thrown into circuit on emergency conditions or phase unbalance. " In phase " boost may also be provided by arranging in phase " boosting transformers so as to inject " in-phase " E.M.F's. proportional to the line current into the line. These transformers may have tap controlled secondaries controlled in accordance with line current. British Specifications 165,470 and 319,313, [both in Class 38 (iv)], and U.S.A. Specification 1,828,062 are referred to.
Patent GB-1148884-A (GB)
Title: Improvements in or relating to extrusion presses
Inventor: WALKER ARTHUR RAYMOND
IPC: B21C23/21
Filed: 1965-05-20
Abstract: 1,148,884. Extruding. DAVY & UNITED ENG. CO. Ltd. 16 May, 1966 [20 May, 1965], No. 21363/65. Heading B3P. A die-changing mechanism for an extrusion press having a die block 17 for moving a die assembly 24, 25 from the extrusion position to an inoperative position, comprises a pair of similar die-changing members 52 mounted on a common support 40 movable to position either of the members adjacent the die block, each member being adapted to hold and transfer a die assembly to and from the die block in a plane normal to the extrusion axis. After extrusion, the discard is first sheared off in front of the die 25 by a shear blade 27 carried by an arm 26 pivoted at 30 and actuated by a piston/cylinder assembly 31. Die block 17 is then moved along slides 18 by a piston rod 20 to position the die assembly adjacent the die-change mechanism. This comprises a pair of identical assemblies mounted in tandem on a common support 40 movable parallel with the extrusion axis for positioning the assemblies alternately into the die-changing position. Each assembly has an arm 52, Fig. 3 (not shown), keyed at (53) to a rocking shaft (43) and slidable along the shaft by a piston/cylinder unit (61), (58) to engage a tim 54 of the arm under the die holder 24. Arm 52 is then rocked by a rotary actuator 50 to place the die assembly into a support rim 66 on a back plate 41. The support 40 is then moved by piston/cylinder unit 70 to bring the other change assembly carrying a new die into position, adjacent the die block. A pair of projecting pins on the arm 52, adapted to enter holes in the die or die holder, may be used instead of the rim 54.
Patent GB-1088206-A (GB)
Title: Process for enhancing the third dimensional aspect of water colour paintings, sketches, drawings or designs
IPC: B44D2/00
Filed: 1964-05-23
Abstract: 1,088,206. Pictures. J. P. F. BOON. March 4, 1965 [May 23, 1964], No. 21406/64. Heading B6X. The third dimensional aspect of water colour paintings is enhanced by a process which includes the application of a silicone-containing wax to the surface of the paintings.
Patent GB-848967-A (GB)
Title: Improvements in the welding of thermoplastic materials
IPC: B29C65/42
Filed: 1958-07-04
Abstract: 848,967. Seaming non-metallic sheet materials. DU PONT DE NEMOURS & CO., E. I. July 4, 1958 [July 8, 1957], No. 21456/58. Class 42 (1). A method of welding thermoplastic materials comprises injecting molten thermoplastic material through a die fed by an extruder into a gap between surfaces of thermoplastic material to be joined together such that the molten material melts said surfaces, and thereafter permitting the whole to cool. As shown, apparatus for carrying out this method consists of a die 1 filled with molten thermoplastic material and having a nozzle 4 through which the molten material is extruded into the gap 5 between two pieces 6 and 7 of thermoplastic material to be welded together. The walls of the gap may serve as a guide for the nozzle and the outer surface of the die may be at a temperature above the softening-point of the thermoplastic material.