baber/WOPTO huggingface dataset:
Patent GB-899747-A (GB)
Title: Improvements in burst jacket detection in nuclear reactors
Inventor: GOUPIL JEAN
IPC: G21C17/04
Filed: 1958-10-21
Abstract: 899,747. Cooling reactors. COMMISSARIAT A L'ENERGIE ATOMIQUE. Oct. 21, 1958 [Oct. 26, 1957], No. 33659/58. Drawings to Specification. Class 39(4). In a heterogeneous liquid or gas cooled reactor the radioactivity of the coolant is measured during operation and compared with the value existing at the commencement of operation. An increase in activity indicates a failure of fuel element sheathing. Each fuel channel is automatically monitored in turn and the results recorded. The comparison of the initial and instantaneous radioactive states of the coolant is effected by an electronic bridge circuit which is simultaneously supplied with two voltages which correspond respectively to the instantaneous and initial states of a selected channel. The initial state of each channel is determined at the commencement of the operation and an associated potentiometer adjusted to give an output voltage which balances the bridge. The potentiometer settings represent the initial condition of each channel; they remain fixed during the reactor operation and are selected cyclically, with the associated channel monitor, for comparison at the bridge. Changes in the reactor power output effect the radioactive character of the coolant and the unbalancing effect of this is counteracted by the automatic adjustment of the potentiometer voltages in accordance with reactor power. In an alternative form, the potentiometer giving the voltage representing the radioactive condition of each channel is replaced by a digital device, for example a magnetic drum or punched card device. The correcting factor corresponding to the reactor power output may be effected either by measuring the radioactivity in the main coolant stream or by taking the mean of the radioactivity in the separate fuel channels. Specification 819,366 is referred to,
Patent GB-902015-A (GB)
Title: A process for the synthesis of secondary alkynols
IPC: C07C33/04
Filed: 1959-10-05
Abstract: Secondary alkynols of the general formula <FORM:0902015/IV (b)/1> in which R is an aliphatic, alicyclic, aromatic-aliphatic or heterocyclic group and R1 is one of such groups or hydrogen, are prepared by reacting an aldehyde of general formula RCHO under superatmospheric pressure and without the elimination of water with an of a catalyst consisting of one or more alkali metals, alkaline earth metals, alkali metal or alkaline earth metal acetylides and alkali metal acetylene of formula R1C­CH in the presence or alkaline earth metal compounds capable of forming acetylides under the reaction conditions without formation of water, and in the presence of a solvent consisting of liquid ammonia or an amine.  Preferably R and R1 are aliphatic or aromatic groups and when an amine is used as solvent it is preferably aliphatic.  Preferably the process is carried out at a pressure of 1.2-21 atm. and a temperature of from -40 DEG  to +40 DEG C. with a molar ratio of acetylene to aldehyde of at least 5 to 1. Compounds capable of forming acetylides under the reaction conditions and which can be used as catalysts are the amides, hydrides or alcoholates of alkali or alkaline earth metals. Specifications 502,693 and 902.014 are referred to.
Patent GB-1202962-A (GB)
Title: Multi-step method for forming plastics articles
Inventor: FOGELBERG CLEMENT VANUS
IPC: B29C49/00
Filed: 1968-07-16
Abstract: 1,202,962. Blow-moulding. BALL BROS. CO. Inc. 16 July, 1968, No. 33753/68. Heading B5A. Hollow articles are produced by blowmoulding a tubular parison, initially to expand a portion of the tube to contact the mould and then completely. The portion is preferably the neck-forming portion. As shown in Fig. 3, the apparatus comprises blow-mould halves 22, 24 operable by cylinders 30 and blowing mandrel 32 vertically reciprocable by fluid cylinder. An extruded tube 20 is closed by grippers 16, severed by knife (18, Figs. 1, 2, not shown) and transported to between the mould halves 22, 24 which are then closed. Blowing mandrel 32 is advanced either before or after mould closure, expanding neck portions into the threaded mould parts, air which acts as cooling medium escaping through the open neck area (Fig. 9, not shown). The blowing mandrel 32 is further advanced completing the expansion and further pressing material into the threads. A thickened shoulder (94, Fig. 10, not shown) is also formed by this movement. As it advances, shoulder 38 on mandrel 32 contacts end 28 of ring 26 to form a sealing lip (98, Fig. 10) on the  article.
Patent GB-840520-A (GB)
Title: Optical objective of variable equivalent focal length
IPC: G02B15/14
Filed: 1957-10-31
Abstract: 840,520. Optical objectives. BELL & HOWELL CO. Oct. 31, 1957 [Sept. 20, 1957], No. 33997/57. Class 97(1) An optical objective of variable focal length comprises at least four air spaced components of which the first component L1 is positive the second L2 is negative and the third and fourth components L3, L4 are positive, and is characterised in that where F is the mean focal length of the objective, f(L1+L2) is the combined focal length of the first and second components, f2 and f3 are the focal lengths of the third and fourth components respectively, S2 and S3 are the spacings between the second and third components and between the third and fourth components respectively, R1 and R4 are the radii of the front and rear surfaces of the first and second components, and R5 and R7 are the radii of the front and rear surfaces of the third component. Means are provided for varying the separations of the components, such means preferably operating in accordance with the equation #S1=##S2=2#S3. There may be another positive component closely spaced in front of the fourth component. Optical data are given for two examples., As shown in Fig. 5, the component L4 is mounted in a sleeve 8 which is rotatable and slidable in a hub portion 9 and has a sleeve 12 slidable therein, this sleeve 12 carrying the components L1 and L3' Within sleeve 12 is a sleeve 13 carrying component L2 this sleeve having a projecting stud 21 engaged in a longitudinal slot 22 in sleeve 12. And a stud 23 projects from sleeve 8 so as to engage helical slots 24, 25 in sleeves 12, 13 respectively, so that by rotating sleeve 12 the separations of the components are varied.
Patent GB-1165506-A (GB)
Title: Fuse Cord with Reduced Initiating Reaction
Inventor: PRIOR JOSEF
IPC: C06C5/04
Filed: 1968-07-17
Abstract: 1,165,506. Fuse cord. DYNAMIT NOBEL A.G. 17 July, 1968 [29 July, 1967], No. 34050/68. Heading F3A. [Also in Division C1] Fuse cord having a reduced initiating reaction i.e. a detonation velocity in the region of 3000 m/sec., comprising a continuous explosive filling consisting of a mixture of highly brisant explosive having a detonation velocity in excess of 5000 m/sec. and from 5 to 95% by weight, based on the weight of the mixture, of ammonium nitrate and/or an explodable nitric acid salt of a derivative of ammonia. The filling may be contained in a tube of lacquered flexible staple rayon. The derivative of ammonia is hydrazine, an amine, amide or imide, and, in particular, hydrazine nitrate; methyl amine nitrate; ethylene diamine nitrate; hexamethylene tetramine dinitrate, or a nitrate of ethanolamine-nitric acid ester, diethanolamine dinitric acid ester, or triethanolamine trinitric acid ester; the nitrate of urea or thiourea; or guanidine nitrate. The brisant explosive has a grain size less than 100 Á and is Hexogen, Nitropenta, Octogen, nitromannite or nitro-starch. The mixture contains a granulating agent such as nitrocellulose, methyl cellulose and ethyl cellulose.
Patent GB-325539-A (GB)
Title: Improvements in or connected with machines for making wafer biscuits and the like
IPC: A21C11/16
Filed: 1928-11-21
Abstract: 325,539. Bates, J. H. Nov. 21, 1928. Making wafer biscuits.-In a gasheated machine for making wafer biscuits and the like, the temperature of the baking plates is maintained substantially uniform by themostatic means. As shown, the plates 2 are heated above and below by burners, the gas supply to each of which is regulated by a needle valve 15 associated in known manner with an air and gas mixing tube leading to the burner. The thermostats comprise a flat sided vessel or bulb 16, containing, e.g. mercury, the bulbs being connected by hinged links 18 to stationary brackets 17, so that the bulbs make sliding contact with bars 19 fixed on the upper and lower baking plates. The bars 19 overlap the ends of the plates and form a continuous surface. The bulbs 16 are connected by pipes 26 to indicator dials, the moving pointers 23 being actuated by a weight on the top of the mercury column and a string connected therewith wound around the spindle of the pointer. A co-axial pointer 24, fixed at an adjustable setting, completes an electric circuit when the pointer 23 comes into alignment. The solenoid 10 then nearly closes the gas valve 8, and the temperature of the plates is reduced.
Patent GB-779669-A (GB)
Title: Improvements in or relating to radiant heating tubes for industrial furnaces
IPC: F23C3/00
Filed: 1954-11-24
Abstract: 779,669. Radiant tubes for furnaces. NASSHEUER, J., NASSHEUER, A., and HOPFNER, [nee NASSHEUER], M. Nov. 24, 1954, [No. 34128/54]. Class 51 (1). A radiant heating tube comprises a jacket tube closed at one end and having a waste gas outlet near the other end, a burner tube extending axially into the jacket tube, its inner end being closed and holes being formed in the wall of the burner tube between the end of an axial fuel inlet and the inner end of the burner, so that gas passing through the holes and burning in the jacket preheats air supplied at the outer end of the burner tube. The radiant heating tube comprises an outer jacket 1 closed at the furnace end and set into the furnace brickwork. A fluepipe is connected to a branch 4 near the outer end, which is closed by a cover 6 carrying a flame tube 7 to which air and gas are supplied through a connection 13 and a pipe 10 respectively. The gas pipe 10 extends to a nozzle brick 11 within the flame tube 7, which forms a burner tube 8 beyond the nozzle 11. The burner tube 8 is pierced by holes 23 and closed at its head end, so that gases partially burnt in the tube 8 pass through the holes and combustion is completed as they pass through the jacket 1 to the flue connection 4, heating the incoming air in the flame tube 7. The burner tube 8 may be of constant cross-section, or have a truncated conical part between the nozzle and a cylindrical part of reduced cross-section. The spacing and size of the holes 23 may vary along the length of the burner tube 8 to give a desired temperature distribution along the jacket 1. In a modification, Fig. 8, the jacket 1 is of inverted pear-shaped section, and an aperture 19 is provided in the cover 6, Fig. 6, to allow the removal of soot collected in the bottom groove. A transparent cover 20 closes the aperture 19, and acts as an observation window. A scraper may be provided to clear the window 20.
Patent GB-345227-A (GB)
Title: Improvements in or relating to electric machines for starting and lighting of motor vehicles
IPC: B60R16/023
Filed: 1929-11-08
Abstract: 345,227. Starting prime movers. SOC. DE PARIS ET DU RHONE, 41, Chemin de St. Priest, Lyons, France. Nov. 8, 1929, No. 34150. Convention date, Nov. 12, 1928. Addition to 262,064, [Class 38 (iv), Electric supply and transmission systems &c.]. [Class 38 (iv).] A dynamo-electric machine for lighting and starting motor vehicles as described in the parent Specification is provided with a resistance R as shown in the Figure, in series with the field winding S and a third brush A. The switch C connects the field winding S directly to the battery terminals to increase the excitation during starting and through the resistance R to the third brush when the machine runs as a generator.
Patent GB-300972-A (GB)
Title: Process for increasing the density of or consolidating sintered metallic masses
IPC: C22C1/05
Filed: 1928-11-21
Abstract: 300,972. Walter, R. Nov. 21, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Metals, powdered, obtaining coherent masses from; alloys.-A process for increasing the density of a sintered mass of metal or of metal carbides or nitrides, such as tungsten, molybdenum, or tantalum, or tungsten or molybdenum carbides or nitrides, consists in casing them to absorb one or more molten metals or alloys of lower melting points, which may for example be metals of the iron or chromium group, or an alloy of cobalt with a metal or metals of the chromium group, with or without the addition of up to 0.5 per cent of boron or titanium or both. For example the final mass may comprise 90 per cent of molybdenum and tungsten carbides and 10 per cent of an alloy consisting of 50 per cent of cobalt, 25 per cent of chromium, 22 per cent of tungsten, and 3 per cent of carbon. The metals or alloys may be melted in contact with the sintered mass.
Patent GB-343034-A (GB)
Abstract: 343,034. Typewriters &c. AUTOMATIC TELEPHONE MANUFACTURING CO., Ltd., Strowger Works, and SAXBY, R. N., 36, Millersdale Road, Mossley Hill, both in Liverpool. Nov. 11, 1929, No. 34435. [Class 100 (iv).] Type-wheel actions.-In a totalizator ticket-issuing machine, the competitor-selecting keys are arranged in two banks allotted respectively to the tens and units digits of the competitor's number. Selection for win or place is effected by depression of one of two bars extending the length of the banks. Referring to Fig. 4, each key is adapted to displace its individual sector 10, pivoted at 11 and notched to rock one or more bars 14 .. 17 common to the bank. These bars in turn serve to close spring-sets such as 13 and so control code lines leading to the decoding relays at the central station. As shown diagrammatically in Fig. 1, the tens keys T close one or more of the spring contacts a, b, g, hand the units keys U similarly control contacts c, .. f. Moreover each key when depressed marks a contact in a ring of contacts 18 or 19 adapted to be swept by a brush rotating with the number type wheel. The printing-wheel assembly, Fig. 5, comprises a motor-driven shaft 25 supporting a sleeve 26 driven from the shaft by a friction coupling 65. The tens type-wheel 34 fixed on the shaft i duplicated at 44 and the units wheel 37 secured on the sleeve is similarly duplicated at 45. A hand-set race number type-wheel 31 and duplicate sets of serial number type-wheels 41, 46 operated as in Specification 339,278, [Class 106 (i), Calculating &c.], are also provided, the duplicate type-wheels printing on a record-strip to check the subsequent payments. The units and tens type-wheels are controlled in position by the co-operation of brushes, carried by wheels 51, 56 rotated synchronously with the shaft and sleeve, with contacts 48 mounted on the insulating discs 18, 19 and connected with the separate keys. In the issue of a ticket the units contacts on disc 19 are first swept to find the marked contact and so stop the type-wheel in the required position by means of magnet USM, Fig. 1, and then the tens wheel is similarly set, this operation resulting in the closure of the code leads by magnet SWG. Specification 331,500' [Class 106 (i), Calculating &c.], also is referred to.
Patent GB-194811-A (GB)
Title: Improvements in or relating to apparatus for tipping railway wagons
IPC: B65G67/00
Filed: 1921-12-20
Abstract: 194,811. Mitchell, r. G. Dec. 20, 1921. Tipping-apparatus.-Relates to wagon-holding means for apparatus in which the wagon is tipped sideways at the level of the permanent track or when raised to a higher level, and the invention may be applied to the tippler described in Specifcation 142,198. The holding-means comprises a bar n connected to the tipping-frame a, or to a fixed support, and to loaded chains p, so that on tipping the frame about the axis b the upper edges of the end walls of the wagon abut against the bar n as shown in broken lines, leaving a free space between the bar n and the lower edge i<1> of the inverted wagon to permit of complete discharge. The bar n is pivotally connected with the upper ends of links o which are pivoted at the trunnions of a lateral supporting bar j on the tipping frame. The links o may be pivoted to the stationary structure on the tipping axis, they may be replaced by chains, and they may comprise yielding parts to allow movement of the wagon body away from the tipping frame when the springs of the wagon are relieved of stress. The chains p may be attached to arms which extend vertically from the bar n and when the wagon is tipped take up the position p<1> and bear against the upper side wall. Specification 194,812 is referred to.
Patent GB-449682-A (GB)
Title: Improvements in and relating to the manufacture of permanent magnets
IPC: H01F41/02
Filed: 1934-11-30
Abstract: 449,682. Magnets. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Probst, E. O.; 27A, Rankestrasse, and Rauch, A.; 25, Bochumerstrasse, both in Berlin) Nov. 30, 1934, No. 34485. [Class 35] [See also Group XXXIX] A permanent magnet is produced from powdered steel contained in a casing partly or wholly of non-magnetic material. In the form shown in Fig. 1, powdorod aluminiumnickel steel is pressed into a brass container n clamped between polepieces l, m. In the form shown in Fig. 3, the loud-speaker magnet consists of a central core and bars q located between plates r, s, the bars q being of powdered steel in non-magnetic casings. Specification 448,988 is referred to.
Patent GB-190496-A (GB)
Title: Method of forming rolls for rolling mills
IPC: B21B27/03
Filed: 1922-12-18
Abstract: 190,496. Coureaux, R. J., and Hardy, A. H. Dec. 16, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Rolling. - Rolls, stated to be particularly adapted for use in metal - sheet rolling- mills, are built up of a central steel core 1 and a separate working surface 2 of metal having chemical and physical characteristics suitable for the work to be performed. The sleeve may be shrunk on, or otherwise secured to the core.
Patent GB-820842-A (GB)
Title: Improvements in or relating to carding fibrous textile stock
IPC: D01G15/46
Filed: 1958-02-28
Abstract: 820,842. Carding engines; mounting and clearing rollers. ABINGTON TEXTILE MACHINERY WORKS. Feb. 28, 1956. [June 6, 1955], No. 34512/56. Divided out of 820,841. Drawings to Specification. Classes 120(1) and 120(2) Fibrous web is removed from the doffer of a carding engine by a pair of take off rolls, the diameter of one of which does not exceed # inch. The diameters and location relative to the doffer of the take off rolls are such that the circumferential distance between the point closest to the doffer of one of the rolls and the point on that roll that is closest to the other roll is not greater than # inch. The subjectmatter of this Specification is included in the description of Specification 820,841, but the claims differ.
Patent GB-1391445-A (GB)
Title: Powder distributor device
IPC: B05B7/14
Filed: 1971-07-22
Abstract: 1391445 Printing apparatus D J R WARHURST 15 June 1972 [22 July 1971] 34522/71 Heading B6C A powder spray apparatus, used to apply anti-set-off powder to freshly-printed sheets, comprises a distributer for the powder, so. arranged that equally spaced passages 16, feeding outlet connections 17, receive equal amounts of a powder/air mixture. The distributer comprises a body 10 with a chamber 12, a central inlet 13 in the chamber floor, a cover 23 and an apertured cap 19 over the inlet. Four equally spaced apertures 22 in the cap are located midway between adjacent passages 16, so that powder/air mixture issuing from the apertures strikes the side wall of the chamber before flowing into the passages 16. A helical spring 25 in the inlet 13 pushes the cap 19 against the cover 23, and so prevents it from rotating relative to the cover.
Patent GB-922337-A (GB)
Title: Injector for mixing gases
Inventor: BLACK GEOFFREY DONALD
IPC: B01F5/04
Filed: 1959-10-13
Abstract: 922,337. Injectors. BRITISH OXYGEN CO. Ltd. Oct. 12, 1960 [Oct. 13, 1959], No. 34619/59. Class 71. An injector for mixing gases comprises a tube 14 through which a wire 15 extends, projecting into a nozzle tube 3, the flow of gas under pressure, e.g. oxygen, through the tube 14 entraining air entering through ports 19. The tube 14 may be of stainless steel and is supported by a plug 13 and the wire 15 is carried by a screw-threaded plug 5 and may be used to clear blockages in the tube 14. Different sized wires 15 may be used to control the flow through the tube 14. A filter 10 is provided in the pressurized gas pipe 9 and the ports 19 are surrounded by a filter 20 with perforated cover 21.
Patent GB-970529-A (GB)
Title: Improvements in or relating to the fabrication of diaper tabs
IPC: D06B11/00
Filed: 1963-09-02
Abstract: 970,529. Diaper tabs. WILLIAM CARTER CO. Sept. 2, 1963 [Sept. 4, 1962], No. 34623/63. Heading A3V. [Also in Division D1] A diaper tab 92 attached to an infant's shirt 96 is provided with impregnated bands 94, 95 of a thermosetting plastics material to prevent transmission of moisture therealong. Impregnated bands 90, 91 are provided at each end of the tab to prevent fraying.
Patent GB-206398-A (GB)
Title: Improvements in air admission apparatus for internal combustion engines
IPC: F02D9/00
Filed: 1922-12-19
Abstract: 206,398. Bastin, J. Dec. 19, 1922. Spray carburettors.-A valve device for admitting supplementary air to the induction pipe or to the carburettor comprises a piston valve 1 having an annular groove 11 which is brought into register with ports 12, 14 connected to the atmosphere, and ports 13, 15 connected to the induction pipe or carburettor, by means of a centrifugal governor 8, the arms 7 of which act on a sliding piston or spring 9 bearing through one or more balls 10 on the end of the valve. The action of the governor is opposed by an adjustable spring 2. The ports 12, 13 may be triangular. Two or more valves may work simultaneously or in succession. The port 14 may be connected to the crank case, so that air saturated with oil vapour is drawn therefrom. One or more liquids may also be admitted with the air.
Patent GB-349047-A (GB)
IPC: F16C3/28
Filed: 1929-11-14
Abstract: 349,047. Variable-speed gearing. JANIK, E., 5, Weimarerstrasse, Vienna. Nov. 14, 1929, No. 34831. Convention date, Nov. 21, 1928. Void [Published under Sect. 91 of the Acts]. Addition to 313,494, [Class 80 (ii), Gearing, Variable-speed &c.]. [Class 80 (ii).] The Specification describes variable-speed ratchet gearing comprising a driving crank 4 the throw of which is varied by a screw 5 with a pinion head 6 adapted to be engaged by a non-rotary block B moved by a governor, not shown, on the driven shaft 10, modified by the provision of spring studs 19 acting on the block B. The block B is controllable manually by way of a forked lever 15 acting on cross pins 16, and the studs 19 function when the lever 15 is released to engage the block B with pinion 6 so as to start the drive and bring the speed automatically to within the range of the governor.