baber/WOPTO huggingface dataset:
Patent GB-906354-A (GB)
Title: Improvements in or relating to travelling-wave tubes
IPC: H01J23/09
Filed: 1960-09-09
Abstract: 906,354. Travelling-wave tubes. SIEMENS & HALSKE A.G. Sept. 9, 1960 [Sept. 10, 1959], No. 31128/60. Class 39 (1). A travelling-wave tube of the type in which the beam is caused to follow a helical path about the tube axis comprises a longitudinally extending electrode 2 disposed along the tube axis, and having coaxial therewith a helically wound electrode 3 and a larger diameter helically wound slow wave structure 1, having a pitch equal to the electrode 3 and disposed so that adjacent convolutions of the electrode 3 have therebetween one convolution of the slow wave structure 1. Convolutions of the slow wave structure 1 may be equidistant from the convolutions of the helical electrode 3. Structure 1 is negative with respect to the electrode 2 to establish the radial field balancing the centrifugal and space charge forces, while electrode 3 is more negative than 1 so as to prevent the beam from spreading outside the field of the structure 1.
Patent GB-1165351-A (GB)
Title: Improvements in or relating to Data Processing Systems
Inventor: THREADGOLD RONALD
IPC: G06F3/033
Filed: 1966-07-12
Abstract: 1,165,351. Computer input means. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. 29 June, 1967 [12 July, 1966], No. 31200/66. Heading G4A. [Also in Division H4] In a data processing system, a selected table of information on a film strip is projected on to a television camera whose output controls a cathode-ray tube to display the selected table, detection of an operator's finger on one of a matrix of contacts superimposed on the C.R.T. face producing a code representing the position of the finger. This code, together with a code representing the identity of the table, is sent via a buffer store to a computer, passage to the computer from the buffer being dependent on a manual key. The position code also causes the item of information selected by the operator's finger in the table to be underlined on the C.R.T. display, for operator verification before pressing the manual key. In this way a quantity surveyor can enter the names of building materials into the computer. He can also enter quantities on a keyboard, and the computer will calculate the total quantities of the various constituents of the materials. A graticule unique to the selected table may be displayed on the C.R.T. under computer control to give the operator some assurance of absence of computer fault. Presence of the operator's finger referred to is detected by capacitive change causing imbalance in A.C. bridges.
Patent GB-312585-A (GB)
Abstract: 312,585. Dreyfus, H. Jan. 28, 1928. Grant of Patent opposed. Acetic and other aliphatic anhydrides are produced by heating a mixture of the acid vapour with carbon dioxide, preferably in large proportion such as 1 part of acid vapour to 1-10 or more parts of carbon dioxide. The temperature may be 250-700‹ C. and the reaction may be effected in presence of known catalysts such as those described in Specifications 257,968 and 280,972. The catalysts may be carried on pumice, carborundum &c. The apparatus may be a fireclay or fused silica tube. The mixture may be effected by passing carbon dioxide through the hot or boiling acid, and the reaction may be effected at atmospheric, reduced, or increased pressure, such as 3-100 atmospheres or more. The anhydride may be separated in any suitable way, preferably after releasing the pressure (if pressure is used), for instance by fractional condensation in a column; or the gases may be passed through one or more solvents for the anhydride such as chlorbenzene. p-dichlorbenzene, paraffin oil, triacetin, phenetole, anisole, one or more cresols, and p-cresyl acetate; or the gases may be mixed with the vapour of an entraining liquid such as benzene, carbon tetrachloride, petrol, mixtures of these substances, or mixtures of ether with petroleum ether as described in Specification 303,772, the water vapour being carried away by the vapour of the entraining liquid, while the anhydride condenses; or the gases may be led under the surface of an extracting liquid such as benzene, chloroform or mixtures of ether or chloroform with hydrocarbons such as light paraffins, gasoline, kerosene or benzene and its homologues, as described in Specification 298,667; or the gases may be passed over water-binding substances such as bisulphat.e.s, pyrosulphates, zinc chloride, calcium chloride, or a phosphoric acid, as described in Specification 289,972. The initial material may be dilute or concentrated, and dilute acetic acid from the acetylation of cellulose may be used. In an example, a mixture of 1 part of acetic acid vapour with 1-5 parts of carbon dioxide is passed through a copper tube filled with sodium bisulphate or pyrosulphate or pumice and heated to 500-600‹ C., the products being separated by fractional condensation in a column. Specification 312,586 also is referred to.
Patent GB-264804-A (GB)
Title: Process for the manufacture of ureides of dialkyl- or arylalkyl-acetic acids
IPC: C07C273/18
Filed: 1926-12-11
Abstract: 264,804. Hoffmann- La Roche & Co., Akt.-Ges., F. Jan. 20, 1926, [Convention date]. Ureides of dialkyl- or arylalkyl-acetic acids are prepared by the prolonged heating of dialkyl- or axylalkyl-barbituric acids with dilute alkali solutions. The products possess hypnotic properties. According to the examples, (1) the ureide of allylisopropylacetic acid is obtained by heating allylisopropylbarbituric acid with dilute aqueous solutions of ammonia, ammonium carbonate, or sodium hydroxide to which sodium and potassium phosphates may be added, or with lime water saturated with carbon dioxide; (2) diallylacetylurea results when diallylbarbituric acid is boiled with weak aqueous ammonia; (3) phenylethylacetylurea is obtained by long heating of phenylethylbarbituric acid in slightly ammoniacal solution.
Patent GB-631958-A (GB)
Title: Improvements in or relating to bonded granular articles e.g. abrasive wheels and the production thereof
IPC: B24D5/04
Filed: 1946-10-23
Abstract: 631,958. Moulding abrasive wheels &c. ABBEY, A. (Carborundum Co.). Oct. 23, 1946, No. 31514. [Class 87 (ii)] [Also in Group XXIII] In order to prevent the sticking of the raw moulded article (made of resinous bonding agent and granular material) to the mould or support in or on which it rests during curing, a layer of thermoplastic material is interposed between the raw article and the mould or support. The layer may be applied to the raw moulded article, either as a preformed sheet or by spraying or painting it in a suitable vehicle, or may be sprayed or painted on to the mould or support. The layer may be removed from the cured article or left thereon. The curing may be effected in the mould or on a curing batt. Fig. 2 shows two preformed sheets 14, 16 applied to the upper and lower faces of a wheel 15 during moulding, and Fig. 3 shows the wheel resting on a curing batt 19 during curing. The moulding may be done cold or, as shown, hot. The sheets may be partly decomposed during curing. The layer or layers may be made of ethyl cellulose or other cellulose derivative, polystyrene, polyvinyl resins or acrylic polymers. Specification 225,436, [Class 87 (ii)], is referred to.
Patent GB-306587-A (GB)
Title: Improvements in or relating to controlling-means for internal-combustion engines
IPC: F02D9/00
Filed: 1927-11-23
Abstract: 306,587. Fedden, A. H. R., and Bristol Aeroplane Co., Ltd. Nov. 23, 1927. Regulating.-The throttle valve or regulating-member is controlled by a servomotor which is brought into action by a barometric device. A diaphragm 10, which is acted on at the side side 11 by air at groundlevel pressure and at the other side 14 bv inductionpipe pressure, is connected to a valve 18 which admits oil from the lubricating-system to one side or the other of a piston 23 connected by rods 24, 28 to the regulating- device, for example to the toggle linkage operating the throttle described in Specification 291,152. A continuous small leak of oil is provided for maintaining the oil supply to the engine. Compresed air or gas may be used instead of the oil pressure.
Patent GB-1365279-A (GB)
Title: 1365280kansai paint co ltd and wako pure chemical industries ltd azo valeronitriles
IPC: G01D4/00
Filed: 1973-07-03
Abstract: 1365279 Electrical balance controls METTLER INSTRUMENTE A G 3 July 1973 [6 March 1973] 31613/73 Heading G1N An electrical balance has a control lever which may be used by an operator either to switch the balance on or off or to effect a taring operation. The lever, shown at 16 in Fig. 1, operates on-off switch 32, Fig. 2, and a micro-switch 38 connected to a taring circuit in the balance 34. The lever is attached to arm 20 which pivots about axis 22, and is normally held between stops 26 by springs 24. The balance is switched on by pressing lever 16 downwards, taring is also performed every time the lever is pressed down. The balance is switched off by moving the lever upwards. The on-off switch controls the supply to the balance 34 and also an indicator lamp 40 which may be part of the readout display such as the decimal point. In another embodiment, Figs. 3, 4a, 4b (not shown) lever 16 is replaced by two levers which are linked together and placed at the sides of the balance; switch 32 is replaced by a pair of micro-switches arranged so that the levers have the same 'feel' whether they are moved up or down.
Patent GB-1149509-A (GB)
Title: Reinforcement member for shielded enclosure
Inventor: FORTIN MARCEL
IPC: G21F7/005
Filed: 1967-07-10
Abstract: 1,149,509. Shielded enclosures. COMMISSARIAT A L'ENERGIE ATOMIQUE. 10 July, 1967 [4 Aug., 1966], No. 31642/67. Heading B4Q. In an enclosure for handling radio-active materials, an aperture is provided in a wall for the insertion of a tool. The aperture 4 is formed by the removal of one or more of the lead bricks forming the wall 1, and a metal reinforcement sleeve 6 is lodged within the aperture. The sleeve has external radial projections 7, 8, 9 and 10 which engage the sawtoothed grooves 11, 12. The space between the aperture and sleeve surfaces is filled with lead which is introduced in the molten state and which solidifies to lock the sleeve in the wall. To prevent radiation streaming, the sleeve inner surface has an annular shoulder 15. In modifications, the sleeve interior may be screw-threaded to reduce streaming and the member 5 may be formed of a single corrugated tube.
Patent GB-819696-A (GB)
Title: Quick release mechanism for parachute containers
IPC: B64D17/52
Filed: 1957-10-11
Abstract: 819,696. Parachute apparatus. SWITLIK PARACHUTE CO. Inc. Oct. 11, 1957 [Nov. 19, 1956], No. 31809/57. Class 4. Parachute quick release mechanism comprises a container having a lid and containing a parachute canopy with a crown line attached to the lid, means releasably securing the lid in closing position, and an explosive mechanism for separating the lid from the container and deploying the parachute. Figs 1 and 2 show the container 10, having a wall 18 attached to a base 20 by a co-operating groove 24 and flange 22. The load 12 is attached to the base, and the canopy 14 and shroud lines 16 are packed inside the container. A hinge part 52 attached to the lid 26 and 54 has a tongue 56 engaging a recess 58 in wall 18, and is hinged to a hinge part 50 attached to a member 46 screw threaded to a tube 34 contained in a housing 28. A collar 36 is attached to base 20 by a screw 38, and has an internal screw thread 42, Fig. 4. Tube 34 is reduced in diameter at 40 and has opposed radial bores through which project the ends of a member 44 screwed into collar 36. Tube 34 contains a member 60 axially secured by a grub screw 64 (shown in Fig. 2) and having a percussion cap 78, a time delay ignition train 72, an explosive charge 76, and a striker 68 supported on a bellows. The firing pin 86 is normally restrained by engagement of a part 90 with a part 92 of a pin 94. On manual withdrawal of pin 94 compressing spring 88, and on disengaging parts 92, 90, the pin strikes home. After the time delay caused by train 72, charge 76 is fired. The resulting gases drive striker 68 to deform member 44 and withdraw its ends from thread 40. The gases then expel tube 34 from housing 28, separating lid 26 from the container. The lid is attached to the canopy crown by a line 17, and thus deploys the parachute. The load may be the instruments of a radio-sonde device.
Patent GB-520894-A (GB)
Title: Improvements in or relating to tension devices or to machines making use of the same
IPC: D05B47/00
Filed: 1938-11-03
Abstract: 520,894. Sewing-machines. BRITISH UNITED SHOE MACHINERY CO., Ltd., and GOULDBOURNE, J. Nov. 3, 1938, No. 31819. [Class 112] Thread tensioning devices.-A thread-tension wheel 5 is carried by a shaft 3 integral with a brake disc 7. The disc 7 is spring-pressed against a second disc 21 and, in order to avoid stick friction, the disc 21 is continuously rotated in a direction opposite to that of the tension wheel The disc 7, with the tension wheel, is prevented from turning backwards with the disc 21 by means of two staggered pawls engaging ratchet teeth on the edge of the disc 7. The disc 21 may be driven by a worm and-wheel 27, 25. The disc 7 is loaded by two springs'33, 35 which have separate fine adjustments provided by a screw 49 and a screwed sleeve 65. Each of the latter rides against a graduated scale 53 and has a divided head. The disc 7 is cyclically relieved of the pressure of the spring 35, during the threading of the barbed needle and when it is moving rearwardly, by means of a camactuated lever 61. It is relieved of the pressure of both springs by means of a lever 39 when the machine is stopped. The device is suitable for use in the machine described in Specification 28985/10, [Class 112].
Patent GB-1044345-A (GB)
Title: Dibenzocycloheptene derivatives
IPC: C07C1/24
Filed: 1963-05-20
Abstract: The invention comprises compounds of the formula <FORM:1044345/C4-C5/1> in which each of X and X1 is a hydrogen atom or a C1- 5 alkyl, C2- 5 alkenyl, phenyl or substituted phenyl group and in which more than one substituent may be on each benzenoid ring, Y is a hydrogen atom and the dotted line indicates that the 10,11-position is singly or doubly bonded, and a process for their preparation comprising dehydrating a compound of the formula <FORM:1044345/C4-C5/2>ALSO:The invention comprises compounds of the formula <FORM:1044345/C2/1> in which each of X and X1 is a hydrogen or halogen atom or a C1- 5 alkyl, C1- 5 alkoxy, C2- 5 alkenyl, halo-C1- 5 alkyl, phenyl, substituted phenyl, C1- 4 acyl, C1- 4 haloacyl, amino, C1- 5 alkylamino, di - (C1- 5 alkyl) amino, C1- 4\t acylamino, C1- 4 haloacylamino, C1- 5 alkylsulphonylamino, hydroxy, C1- 5 haloalkoxy, cyano, carboxy, carbamoyl, C1- 5 alkyl-carbamoyl, di-(C1- 5\t alkyl)carbamoyl, C1- 5 alkylmercapto, C1- 5\t haloalkylsulphonyl, sulphamoyl, C1- 5 alkyl-sulphamoyl, or di-(C1- 5 alkyl)sulphamoyl group and in which more than one substituent may be on each benzenoid ring, Y is a hydrogen or halogen atom and the dotted line indicates that the 10,11-position is singly or doubly bonded, and a process for their preparation comprising dehydrating a compound of the formula <FORM:1044345/C2/2>
Patent GB-517053-A (GB)
Title: Improved darning appliance
IPC: D05B91/08
Filed: 1938-11-03
Abstract: 517,053. Darning. MEYER, J. Nov. 3; 1938, No. 31836. Convention date, March 2. [Class 112] In an appliance for stretching fabrics for darning of the type comprising a solid body with a transparent or translucent cover having ribs or other inequalities to facilitate the passage. of darning threads, a highly outwardly-reflecting surface is provided on the body or the inner face of the cover or an intermediate member to render the threads more easily visible. In the form shown in Fig. 4, the ribbed cover 10 provides a hollow in which mirror 11 lies on the body 2. The body 2 and the cover 10 may fit together without an intervening space, the cover being of the form shown, or plano-convex or lenticular, and the reflecting surface may be provided directly on the body 2 or in indentations in the inner surface of the cover 10. The reflecting surface and the surface of the cover may be roughened or provided with ribs or other inequalities to scatter the reflected light. The ribs 4 on the cover may be of different shape or size at different parts of the surface of the cover, to facilitate darning materials of differing fineness; the corresponding parts of the reflecting surface may be differently coloured, to facilitate selection of the desired portion of the ribs and to improve visibility of fabrics of different colours. The body 2 may form, with the cover, an egg-shape instead of the mushroom-shape shown. The body and cover may be of glass or synthetic material, and the body may alternatively be of wood or metal.
Patent GB-172943-A (GB)
Title: Mechanism for actuating the brakes of the front wheels of automobiles
IPC: B60T11/04
Filed: 1921-11-28
Abstract: 172,943. Sainturat, M. H. C. E. Dec. 15, 1920, [Convention date]. Controlling-apparatus, transmission gear in conjunction with.-Operating-connections for brakes on the steering-wheels of automobiles comprise a rod h universally jointed at g, i to arms j, f on the brake cam shaft k and countershaft a respectively. The countershaft a is mounted on the axle c and is actuated by a lever b. The line of direction of the rod h is arranged to pass through the axis of the steering-pivot d as at l in its mean position of braking with the wheel in normal position. There is thus no substantial displacement of the arm j and the cam by the steering movement of the wheel.
Patent GB-975895-A (GB)
Title: Diaphragm type carburetor or charge forming device
IPC: F02M17/04
Filed: 1960-11-21
Abstract: 975,895. Spray carburetters. TILLOTSON MANUFACTURING CO. 21 Nov. 1960 [Nov. 27,1959], No. 31887/64. Divided out of 975,894. Heading F1B. In a carburetter having a body 140, Fig. 2, formed with a fuel and air mixing passage 12b, having a throttle 30b, and a fuel chamber 38b having a flexible diaphragm 40b forming a wall, a main Venturi 14b containing a supplemental Venturi 144 having its axis offset from the main Venturi axis towards the diaphragm, an orifice 84b, means 68b, Fig. 5, for transmitting movement of the diaphragm to the fuel inlet valve 58b and a fuel valve closing spring 74b, the fuel chamber is unvented and the diaphragm is actuated by the aspiration due to the airflow through the mixing passage. On starting with choke valve 21b closed and throttle valve 30b open, fuel from chamber 38b is delivered through passages 108b, Fig. 4, and 106b past metering valve 112b into passage 94b to the main orifice 84b which discharges into the supplemental Venturi 144. The mixture from Venturi 144 is distributed to the outlet region 18b, this action continuing during moderate and high speed engine operation. During low speed or idling operation with throttle valve 30b nearly closed, fuel is delivered through bore 150, Fig. 3, through passage 122b past metering valve 123b into a passage 117b and thence via an inter-connecting passage to passage 90b to be delivered through one or both secondary orifices 86b, 88b into the mixing passage. Reduced pressure in the mixing passage causes diaphragm 40b to flex inwardly causing rotation of lever 68b to permit opening of valve 60b to admit fuel into chamber 38b. When reduced throttle opening causes increased pressure in the Venturis, the capillary action of fuel in the main nozzle and around valve 112b sets up a liquid seal preventing back bleeding of air into the unvented chamber 38b, thus allowing the carburetter to function in exrteme angular positions. An air bleed passage 130b may admit air into the fuel prior to its discharge through the main orifice 84b. In another embodiment, a ball valve 162, Fig. 8, e.g. of polyamide or formaldehyde resin, prevents back bleeding through orifice 84c and in a modification the air bleed 130c may enter the sleeve 160 above flange 161 so that emulsified fuel is delivered through the main orifice 84c only. Specification 975,896 also is referred to.
Patent GB-490884-A (GB)
Title: High tension electric insulators
IPC: H01B17/42
Filed: 1937-11-19
Abstract: 490,884. Insulators. LORENZ AKT.- GES., C. Nov. 19, 1937, No. 31892. Convention date, Nov. 24, 1936. [Class 36] A high tension insulator with a cup-shaped projection is characterized in that its inner surface is provided with a metal coating and the edge of the projection has an inwardly projecting annular extension which is not covered by the metal coating. The extension may be a bead or flange. The head 1 of the insulator and the cup-shaped projection 2 are coated with a metal layer 3 preferably of silver burnt thereon and coated with copper. The cup-shaped projection is fitted with an inwardly projecting flange 5.
Patent GB-821259-A (GB)
Title: Improvements in or relating to pallet loading apparatus
IPC: B65G57/00
Filed: 1956-10-19
Abstract: 821,259. Stacking machines. GREER CO., J. W. Oct. 19, 1956 [Oct. 20, 1955], No. 31892/56. Class 94(1). Apparatus for assembling articles on a pallet comprises a vertically movable platform for receiving a tier of articles at an upper position and for lowering them to a discharge position closely above the pallet on a preceding tier on the pallet, the platform being slidable transversely from beneath the articles to deposit them on the pallet on tier below. The platform consists of a series of rollers 82, the ends of which are carried by chains 84 running round sprockets 86, 88, 94, 98, the sprockets 94 being driven by a motor 104 to withdraw the rollers from beneath the articles and carry them to one side as in Fig. 3. The sprockets, chains and motor are mounted on a framework 54, 56, 58 movable vertically by a motor 74 through chains 60. A stripper bar 110 mounted on arms 112 is pivoted on the framework and is lowered to engage the rear of a tier of articles by a motor 116. In operation, when the framework is in its upper position and the platform positioned as in Fig. 1, a gate 130 is lowered permitting a tier of articles 46 to pass from a conveyer 44 on to the rollers 82. The gate rises when the platform is loaded, and the framework descends. The descent is halted by the interruption of light beams 155 of photo-electric means on the framework by either the pallet 42 or articles previously deposited on it. The stopper 110 pivots down to engage the tier and the rollers 82 are withdrawn to permit it to fall onto the pallet. The working of the device is fully automatic, being controlled by switches operated by movement of the framework and platform. An electrical control system, Fig 9 (not shown), is described.
Patent GB-207037-A (GB)
Title: A new powder for making adhesive paste
IPC: C09J103/00
Filed: 1922-11-22
Abstract: An adhesive for use in paper-hanging and the like comprises wheaten flour, starch, size, and boracic acid, all in powder form. The mixed ingredients are made into a paste with cold water and hot water then added until the paste is of the desired consistency.  An example of suitable proportions is given.
Patent GB-211926-A (GB)
Title: Improvements in kerbs or fenders for domestic and like fireplaces
IPC: F24B1/198
Filed: 1922-11-23
Abstract: 211,926. Paton, Calvert, & Co., Ltd., and Hastings, J. Nov. 23, 1922. Curbs; hearths.-A combined curb and hearth-plate is made from a blank 1 of thin tin-plate which is decorated, in the flat, by printing, painting, embossing, &c. and then, after the corners are cut to the required shape, bent up and secured to a wooden or other core 5. As shown in Fig. 5, the corners are cut to provide tongues 2, 3, the latter, when the blank is bent up, overlying the tongue 2 and being doubled over on itself to form a joint with a rounded edge. The blank shown, which is decorated to imitate tiles, has a beaded front edge 4 and is impressed along the joints between the tiles and also along the lines about which the blank is to be bent. The device, when of large size, is made from two or more sections secured together.