baber/WOPTO huggingface dataset:
Patent GB-688925-A (GB)
Title: Improvements in travelling wave apparatus
IPC: H03F3/64
Filed: 1950-05-19
Abstract: 688,925. Travelling-wave tubes; magnetron amplifiers. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. May 19, 1950 [June 2, 1949], No. 12606/50. Class 39(i) In travelling wave apparatus two beams of primary electrons are emitted from opposite ends of the tube respectively, simultaneously or alternately. In one form, Fig. 1, electron guns 3, 4, 5; 6, 7, 8 generate annular beam 1 passing outside helix 2 and cylindrical beam 9 passing inside helix 2 in the opposite direction. The ends of the helix are coupled by dipoles 10, 11 to waveguides 12, 13 and a coil 14 focuses the beams. In one method of operation a signal is introduced by guide 12 and is amplified by beam 1 in the usual manner, the amplified output being taken off by guide 13. The dipole 11 and guide 13 are not perfectly matched so there is a reflected wave which is amplified by beam 9; dipole 10 and guide 12 are also not perfectly matched so that there is a further reflection in the direction of beam 1. By varying the potential or emissivity of cathode 6 and by adjusting the phase by known means the magnitude of the multiply reflected wave may be such as to reinforce the forward wave to a desired degree. In another method of operation for example in telephone line circuits, the tube will amplify in either direction or in both directions simultaneously; when amplifying in one specific direction the input and output guides are each provided with switching means to prevent simultaneous entry of two input waves travelling in opposite directions, or alternatively the reverse beam may be suppressed by impulses, synchronised with switching means, applied to the appropriate wehnelt electrode. In another embodiment, Fig. 2a, the device operates with crossed electric and magnetic fields. The helix 2 is flat, and electrodes 22, 23 negatively biased with reference to the helix set up the transverse electric fields for the respective beams which pass outside the helix on opposite sides thereof; the magnetic field is perpendicular to the plane of the paper. The input and output are led in and taken off by coaxial lines, Fig. 2b (not shown); the helix 2 may be replaced by a wire of sinuous form. The invention is also applicable to tubes of circular form. Specifications 663,728 and 677,536 are referred to.
Patent GB-1293922-A (GB)
Title: Electric welding
Inventor: LUCEY JOHN ANTHONY
IPC: B23K25/00
Filed: 1969-03-10
Abstract: 1293922 Welding by fusion BRITISH OXYGEN CO Ltd 25 Feb 1970 [10 March 1969] 12607/69 Heading B3R In an electroslag or electrogas welding process the rate of heat input to the weld zone is varied with distance along the weld path to produce a heat-affected zone 22 having non-linear boundaries. The heat input is preferably varied by cyclically varying the welding voltage while maintaining the welding current and wire feed speed constant. Alternatively the voltage and wire feed speed may be adjusted simultaneously in a predetermined relationship.
Patent GB-981904-A (GB)
Title: A method of and a filing device for filing sheets in overlapping relationship
Inventor: PORTER ROBERT WINEARLS
IPC: B42F5/00
Filed: 1962-04-01
Abstract: 981,904. Filing papers. J. GREEN PRESS Inc. April 2, 1962, No. 12620/62. Heading B6E. Record sheets and the like are secured in overlapping relationship in a folder 10 by means of a layer of pressure-sensitive adhesive normally covered by a protective sheet 13 of glazed paper wider than the layer of adhesive. The protective sheet is cut transversely to define separable strips 17, which may be removed one at a time to uncover a narrow strip of adhesive to be used in securing a record sheet in the folder.
Patent GB-853284-A (GB)
Title: Improved apparatus for controlling mist propagation of plants
IPC: A01G9/24
Filed: 1957-04-18
Abstract: 853,284. Mercury and other conducting- liquid switches. FRAMPTON, R. C., and LOWNDES, D. B., [trading as MACPENNY'S MIST PROPAGATION]. July 17, 1958 [April 18, 1957], No. 12632/57. Class 38 (5). [Also in Groups XX and XL (c)] A moisture control unit, such as for use in turning sprays on and off in a greenhouse, comprises a circuit with a moisture detector which, when the moisture is sufficient, conducts and the relay is de-energized, the sprays being turned off. The detector consists of two carbon or other non-corrosive electrodes 4, 5, embedded in an insulating body 6 so that one end of each rod lies substantially in the same plane as one surface 7 of body 6. A disc or cap of absorbent silk or other absorbent or porous material may be fitted over the surface 7 and dummy electrodes may be provided having a surface substantially level with surface 7.
Patent GB-1093452-A (GB)
Title: Laminated radiation resistant panels
IPC: G21F1/12
Filed: 1965-03-25
Abstract: 1,093,452. Laminates. M. B. VAN WAGONER, and G. TESTAGUZZA. March 25, 1965, No. 12674/65. Heading B5N. A radiation resistant panel comprises at least two layers, the first layer including in its composition a polyester or epoxy resin, sand and asbestos cement; and a second layer comprising or including in its composition lead, at least one of the layers containing a fibreglass fabric. Fig. 1 shows a mould in which 11 is a surface coat comprising a liquid polyester or epoxy resin, sand, asbestos cement and optionally lead powder and 12 is a fibreglass fabric impregnated with a liquid polyester or epoxy resin and containing sand, asbestos cement and powdered lead. Fig. 2 shows a mould in which layers 13 are of fibreglass fabric impregnated with a polyester or epoxy resin and containing sand. asbestos cement and optionally lead powder and layer 14 is a lead sheet. Fig. 4 shows a panel A as shown in the mould of Fig. 1 and panel B as made in the mould of Fig. 2, 15 either being an air space or containing an insulation material, e.g. rock wool or spun fibreglass or lead sheet, lead cloth or sand.
Patent GB-1304459-A (GB)
IPC: F15B13/04
Filed: 1970-03-17
Abstract: 1304459 Valves CATERPILLAR TRACTOR CO 17 March 1970 [14 April 1969] 12744/70 Heading F2V A spool valve controlling the direction of rotation of a fluid motor 22 includes a spool 28 having slots 56, 58, 60, 62 which prevent cavitation in the hydraulic system of which the valve is part. In the neutral position "N" (shown in Fig. 1) the spool directs fluid from a pump 12 to the reservoir tank 14 and to slots 58, 62 via passage 34 to urge the check valve 44 to the closed position. Restricted communication can occur between the two sides of the fluid motor via slots 60, 62. In the forward position "F", the reservoir tank is shut off from the pump at 38, 40, fluid pressure opening the valve 44 and passing to line 24, the motor and returning via line 34. In the reverse position "R", fluid flows from the pump to line 26 and returns via line 34.
Patent GB-197694-A (GB)
Title: A new or improved automatic cutting machine particularly for use in the manufacture of confectionery
IPC: A23G3/02
Filed: 1923-05-12
Abstract: 197,694. Balbiani, J. D. R. May 15. 1922, [Convention date]. Rolling-machines and sheet-cutting machines.- A machine for automatically moulding confectionery shapes &c. of the type in which paste is rolled or flattened on a sheet whilst on a moving web and is passed by the latter to a cutting device, comprises a swinging or reciprocating roller and a combined cutting and transfer mechanism. The latter consists of punches which when depressed to cut out the required shapes retain them in the cutting members and transfer them to a conveyer on which they are discharged automatically. The paste is smoothed between a roller 14 and a band 1 mounted on drums 2, 2<a> rotated intermittingly by ratchet and pawl gearing 3, 4, operated by a rod 7 and lever 6 from a cam 25a on a shaft 16. The throw of the pawl is adjusted by altering the position of the connecting rod 7 in the slotted lever 6. The roller 14 is reciprocated in curved slots 13 in supports 23 by levers 10 operated by a pin 58 on a cam 9 on the shaft 16. The punching and delivery mechanism comprises a rubber die 31, a series of punches 34 working through a grid 55 and mounted on a head 33, and a corresponding number of ejecting-pins 40 mounted on an arm 39. After each cutting operation the head 33 is reciprocated through an angle of 180‹ about a shaft 53, by means of rack and pinion gearing 35, 36, thus transferring the cut shapes to a conveyer on which they are ejected by the pin 40 rotated by the interrupted gearing 37, 38. Adhesion of the paste to the machine is prevented by dusting sugar &c. thereon from sieves 18, 18<a>, 22 agitated by cams 11 and a rod 21. A web 32 is rotated over the cutting table 31 on rollers 31<a>, 31<b> by means of pin and ratchet gearing 29, 28 operated through an adjustable lever 26 from a cam 25 on the shaft 16 which is so shaped that at the moment of cutting the web is stationary. In order to distribute the cut shapes on the conveyer in close proximity the cutting mechanism may be reciprocated laterally by a grooved pulley 66, Fig. 2 formed at one end of the shaft 53. A pendulum 65 pivoted on a bracket 63 carries at its other end two rollers 67, 68. The roller 67 engages between the flanges of the pulley 66, while the roller 68 runs in a slot formed in a lever 69. The latter is fixed on a slide 72 by bolts 70, 71. On release of the bolt 71 the lever 69 can be reciprocated by a roller 73 operated by a cam 74 revolving on the shaft 61 operating the rack 36.
Patent GB-179814-A (GB)
Title: Improvements in or relating to purses
IPC: A45C1/08
Filed: 1921-05-05
Abstract: 179,814. Pinfold, A. G. May 5, 1921. Purses.-A purse is provided with a sheet D of leather or other material adapted to hold notes and capable of being folded and fitted into one of the compartments. The sheet D has a longitudinal strip or loop D' for retaining the notes in position, and may be secured to the compartment C by a flexible or elastic strip D<2>, whilst at the rear side there may be attached to the sheet a tab to facilitate withdrawal. The strip D<1> may have an opening D' for exhibiting a card.
Patent GB-1322305-A (GB)
Title: Magnetic convergence device for use in an in-line type colour cathode ray tube
IPC: H01J29/70
Filed: 1972-03-20
Abstract: 1322305 Colour television tubes TOKYO SHIBAURA ELECTRIC CO Ltd 20 March 1972 [20 March 1971] 12875/72 Heading H1D An adjustable magnetic convergence device is formed by a pair of units 10, the non- magnetic frames 12 of which are mounted on a non- magnetic plate 3 by means of screws 11, Fig. 2, which pass through arcuate slits 8 in the plate and are secured at the other side to arcuate racks 9 which are movable along the slits by means of pinions 23 and wheels 26, to adjust the position of the units. Each convergence unit includes dynamic convergence coils 15 wound on an E-shaped core 14 together with discshaped permanent magnets 16, and plate 3 is secured, by a clamp 6, 7, engaged around split portions 5 of the plate, to the neck of an in-line colour television tube, the centre beam 19 of which is shielded from the convergence fields acting on the side beams 18 and 20 by magnetic shield plates 21 and 22.
Patent GB-629967-A (GB)
Title: Improvements in or relating to a pressure cooker
IPC: A47J27/09
Filed: 1947-05-13
Abstract: 629,967. Pressure cookers. EKCO PRODUCTS CO. May 13, 1947, No. 12880. Convention date, July 27, 1946. [Class 123(i)] Relates to a pressure cooker having an elliptical opening and cover, the latter 13 being supported from a bridge piece 20, the ends of which engage pockets 21 in, for example, opposed handles 22 on the cooker along the major axis of the opening thereof, and having a peripheral flange 14 adapted to mate with the underside of a flange 12 defining the cooker opening when the cover is tilted, inserted into said opening, and then rotated through about 90 degrees. As shown, the cover 13, Fig. 4, is provided with a stem 23 which extends upwardly through an aperture at the middle of the bridge 20 and is frictionally connected at its upper end to an operating member 26, in the form of an inverted cup, through pins 43 which project downwardly from a disc 40, secured to the member 26, to engage depressions 46 in a plate 45, the latter being keyed to, but slidable on, the stem 23 and being pressed upwardly by a spring 34 bearing on a cup-shaped member 30 rigid with the bridge. The spring is normally held compressed by the engagement of an internal lug 33 on the member 26 with a shoulder 32 on the cup 30, said shoulder subtending an angle of 90 degrees and terminating in a vertical channel 35, Fig. 6. The member 26 is also provided with a second lug 50, diametrically opposite the lug 33, and the cup 30 with a corresponding vertical channel 51, the bottom edge of the lug 50 being at the same level as that of the lug 33 and the two lugs being adapted to engage upwardly slanting cam surfaces 52 formed around the upper edge of the cup 30. In operation, and with the parts as shown in Fig. 4, the cover is inserted through the cooker opening and the ends of the bridge 20 engaged with its retaining pockets on the cooker handles. The member 26 is then rotated through 90 degrees to align the flanges 12, 14, also the lugs 33, 50 and channels 35, 51 respectively, whereupon the member 26 is released and the spring 34 is permitted to effect upward movement of the cover relatively to the bridge and bring the flanges 12, 14 into primary sealing engagement, further rotation of the member 26 releasing the frictional connection between the pins 43 and plate 45 and exerting, through the lugs 33, 50 and cam surfaces 52, an additional pressure between the said flanges. The cover is removed from the cooker in a reverse manner.
Patent GB-834304-A (GB)
Title: New monoazo dyestuffs containing triazine radicals
Inventor: ANDREW HERBERT FRANCIS
IPC: C09B62/085
Filed: 1957-04-23
Abstract: The invention comprises red mono azo dyestuffs which in their free acid form are represented by the formula <FORM:0834304/IV(c)/1> where A is a radical of the benzene series free from hydroxyl, amino or monoalkylamino groups, X is halogen, and either <FORM:0834304/IV(c)/2> stands for a piperidyl or morpholyl radical or R1 stands for hydrogen, or an alkyl, carboxyalkyl, hydroxyalkyl, cyclohexyl, benzyl, aryl, e.g. phenyl or naphthyl, or a substituted aryl radical free from metallizable systems, R2 stands for hydrogen, or an alkyl or hydroxyalkyl radical, A and R1 are different, being so chosen that one or both contain at least one sulphonic acid group, R3 stands for hydrogen or an alkyl radical and one Y stands for a sulphonic acid group and the other for hydrogen.  Values specified for A are phenyl and phenyl radicals substituted with, e.g., alkyl, halogen, alkoxy, carboxy or sulphonic acid groups.  The above substituents may also be present in R1.  The dyestuffs may be prepared by reacting a cyanuric halide with <FORM:0834304/IV(c)/3> <FORM:0834304/IV(c)/4> The starting materials may be reacted in any desired order.  Thus a diazonium compound obtained from an aromatic amine (V) may be coupled with the naphthol of formula (VI) and the cyanuric halide reacted in either order with about one molecular proportion of each of the amino-azo compound so obtained and of the amine of formula (IV).  Alternatively the cyanuric halide may be reacted in either order with a naphthol of formula (VI) and the amine of formula (IV) and the product so obtained coupled with a diazonium compound obtained from the amine of formula (V).  The cyanuric chloride may also be first reacted with the naphthol and the product so obtained coupled with the diazonium compound, the second halogen on the triazine then being reacted with the amine of formula (IV). The process may be carried out without isolation of the intermediate products.  Examples and tables are given. The dyestuffs may be used for printing cellulosic textile materials by applying thereto a printing paste containing the dyestuff together with an acid binding agent, a substance which on heating or steaming liberates an acid bending agent drying the materials and then subjecting them to heat or steam. Specifications 785,222 and 797,946 are referred to.
Patent GB-528522-A (GB)
Title: Improvements in fuze setting apparatus for artillery projectiles
IPC: F42C17/00
Filed: 1939-04-29
Abstract: 528,522. Setting projectile fuzes. SCHNEIDER & CIE. April 29, 1939, No. 12910. Convention date, June 16, 1938. [Class 9 (i)] Projectile time fuzes are set by apparatus comprising a fixed base or housing 1, Fig. 1, in which is mounted a rotatable drum 8 provided with a number of internally serrated collars 9, 10 ... which receive the fixed members of the fuzes on the projectiles, each projectile being introduced into its collar 9, 10 ... at a station a and carried by rotation of the drum 8 to a discharge position c, during which movement the fuze is set. Mounted within the drum 8 are bearings 13, 14. in which internally serrated sockets 17, 18 ... , coaxial with the internally serrated supports 9, 10 ... , are rotatably mounted, the sockets 17, 18 ... receiving the rotatable rings of the fuzes. The drum 8 is rotated by hand, step by step, by handles 24, 25 ... , and during this movement gear wheels 22 on the sockets 17, 18... engage in succession with a toothed sector 5 on a member 4 which is adjustable by worm gearing 2, 3 actuated by a crank so that the required partial rotation of the sockets relatively to the collars 9. 10 ... as the sockets travel to the discharge position c, and the fuze is set accordingly. The sockets have arms 23 with arcuate ends to engage a ring 6 on the member 4, in order to ensure correct registration of the serrations on the sockets and collars at the station a, and gaps 38, 40, Fig. 4, are provided in the ring 6 in proximity to the ends of the toothed sector 5, to accommodate the ends of the arms 23 as they rotate out of and into engagement with the ring 6. A spring-urged stop-pin 33 with a handle 35 is adapted to engage with apertures in the drum 8 to arrest the drum in the correct delivery position. According to a modification, the drum is automatically locked against rotation until the projectile whose fuze is set, has been removed, this being effected by plungers 47, Fig. 2, guided in members 49 in the drum 8, and bearing on a circular track 57 which is notched at 58 at the station c, in which position, provided a projectile is in the socket, the plunger 47 is pressed into the notch 58 by a spring 50. When the projectile with fuze set, is removed, a plunger 46 is lifted by a spring 48, and lifts the plunger 47 from the locked position by a bar 55 fixed in the plunger 46, and passing through a slot in the plunger 47. One or more teeth on the gear wheels 22 may be cut as at 43, Fig. 5, to facilitate the engagement of the gears with the teeth on the segment 5.
Patent GB-387883-A (GB)
Title: Improvements in or relating to loose-leaf binders
IPC: B42F13/16
Filed: 1932-05-05
Abstract: 387,883. Loose-leaf binders. LEVINSKY, G., 15, Rue de l'EpÚe de Bois, and MARSAL, C., 12, Avenue des Gobelins, both in Paris. May 5, 1932, No. 12956. Convention date, Nov. 19, 1931. [Class 146 (i).] A loose - leaf binder comprises a unitary member of sheet material having one or more portions adapted to be bent to form one or more closed or substantially closed loops, said member being formed with means for locating the free ends of the said bent portions whereby the loose leaves and/or covers carried by the loops are detachably held in bound position. As shown, blades 2 projecting laterally from a member 1 are passed through perforations 9 in covers 6, 7, and bent in a loop, the end of which is inserted in a notch formed in a turnedover edge 3 on the member 1. The edges 4, 5 of the member 1 are turned down on the lower cover.
Patent GB-115569-A (GB)
Title: Improvements in or relating to the Joining and Splicing of Driving and other Belts, Belting and the like.
Inventor: COWBURN SAMUEL EDWARD
IPC: F16G3/00
Filed: 1917-09-12
Abstract: 115,569. Cowburn, S. E. Sept. 12, 1917. Straps and bands.-A coupling for belts and the like has two or more flattened helices, such as a, b, Fig. 1, of different diameters threaded through the ends of the belt and connected by a raw-hide pin c, a cord, or the like. Belts are spliced, or joined together to form a wide belt, as shown in Fig. 4, by threading through them two or more helices, such as a, b, b<2>, differing in diameter. Several arrangements of helices are described.
Patent GB-854613-A (GB)
Title: Improvements in and relating to rubber compositions
Inventor: HICKSON ROY
IPC: C07C45/33
Filed: 1956-04-28
Abstract: In the preparation of a vulcanizable composition, carbon black, formaldehyde or a compound which releases formaldehyde on heating and a condensation catalyst are dispersed in natural or synthetic rubber, in the absence of extraneous formaldehyde-reactive materials, and the mixture is subjected to a heat treatment without vulcanizing it.  The synthetic rubber may consist of a polymer of a conjugated diene, e.g. polybutadiene, or a copolymer such as butadiene - acrylonitrile, butadienestyrene, or isobutylene - butadiene copolymers, or a polymer of a substituted conjugated diene containing the group CH2 : C.Cl, e.g. polychloroprene.  Vulcanizable reclaims of such rubbers and compositions of such rubbers containing extender oils may also be used.  The heat treatment may be effected at 100 DEG  to 200 DEG C. for a period of 2,5 to 40 minutes, preferably at 140 DEG  to 160 DEG C. for 10 to 25 minutes.  The mixture may comprise, in parts by weight, rubber 100, formaldehyde 0,1 to 10, preferably 1 to 2, carbon black 5 to 150, preferably 5 to 75, and condensation catalyst 0,1 to 0,5.  The compound which liberates formaldehyde on heating may comprise formaldehyde, metaformaldehyde, or hexamethylene tetramine. A separate condensation catalyst is not required when hexamethylene tetramine is used since the ammonia liberated by that compound on heating functions as a condensation catalyst.  When hexamethylene tetramine is not used the condensation catalyst may consist of aluminium chloride.  Examples are described illustrating that vulcanizates having high values of hardness and resilience are obtained by the vulcanization of compositions prepared by the process according to the invention from mixtures comprising natural rubber or butadiene styrene copolymer.
Patent GB-289859-A (GB)
Title: Process for bleaching and hardening resins
IPC: C09F1/00
Filed: 1928-05-04
Abstract: 289,859. Cordes Akt.-Ges., C., and Stuhlmann, P. May 4, 1927, [Convention. date]. Resins.-In a process for bleaching resin, the resins are dissolved in the cold dilute alkali, and treated, during continuous agitation, to the action of an aldehyde in the presence of a bleaching agent such as sodium bicarbonate, hydrogen, peroxide, silicates &c. The more or less finely divided resins are dissolved in cold dilute alkali, in open or evacuated vessels, and agitated by injected air, stirring &c. Bleaching agents and formaldehyde or other aldehydes &c. are added. Precipitation of the bleached resin is effected with aluminium sulphate. The resin solutions may be filtered to remove impurities. Substances such as casein, vegetable and animal glues &c. which improve or modify the properties of resin, may be added and are treated together with the resin. The Specification as open to inspection under Sect. 91 (3) (a) describes treatment of the resin solution with bleaching agents, of which aldehydes are cited as examples. Other bleaching agents mentioned are chlorates and per-salts. Sodium silicates is also referred as a bleaching agent and as a suitable addition to the resin. This subject-matter does not appear in the Specification as accepted.