baber/WOPTO huggingface dataset:
Patent GB-944194-A (GB)
Title: Improved emergency shutdown for nuclear reactors
IPC: G21C7/20
Filed: 1962-07-20
Abstract: 944,194. Controlling reactors. GENERAL DYNAMICS CORPORATION. July 20, 1962 [Aug. 2, 1961], No. 28109/62. Heading G6C. A nuclear reactor emergency control rod is suspended above the fissionable material by means of an element which melts or becomes weak at a predetermined temperature, thereby allowing the control rod to drop into the reactor core. As seen in Fig. 2, the neutron absorbing portion of the control rod comprises annular pellets 39, mounted on a support tube 33, and contained within a guide tube comprising an internally splined lower part 17 located in the reactor guide plate and an upper ' part 19 supported, via a conical seating 26, in the lower part. Referring now to Fig. 4, an externally splined retaining ring 47 is mounted on the lower end of the support tube 33 and acts as a retainer for a shock absorbing unit 41 and the pellets 33, and as a means for guiding the rod when it is dropped into the reactor core. A support rod 31 extends from the rod grapple head 29 to a collar 61 to which it is brazed or otherwise adhered. When the maximum allowable temperature is reached, the brazing melts and releases the control rod which drops down the guide tube into the reactor core. If the normal control rod 23 which shares the guide tube is fully inserted from below, then the downward movement of the emergency control rod is arrested by contact with control rod 23. If the lower control rod is not inserted, the emergency control rod is arrested at a somewhat lower point when the splines 51 reach the ends of the splines 25 cut in the guide tube 17. In a modification, the guide tube extends considerably above the top of the core so as to house an emergency control rod of sufficient length to extend through substantially the full depth of the core when released. Provision is made, for example electrical resistance coils, for heating the joint in order that the rod may be intentionally released. Cooling. Provision is made, such as by holes 57, 35, for circulating the reactor coolant gases within the control rod assembly.
Patent GB-339376-A (GB)
Title: Improvements in or relating to washer boxes for coal and the like
IPC: B03B5/24
Filed: 1929-09-16
Abstract: 339,376. Norton, B. Sept. 16, 1929. Jigs.-In a jig in which the amplitude of the water pulsations at the shale outlet is controlled automatically by variations in the pressure in air chambers according to the amount of shale to be discharged, a lost-motion device is provided so that only those movements of the actuator which exceed a certain value result in any variation of air pressure in the chambers. Air chambers 7, 8, Figs. 1 and 2, connected by a pipe 9 to a valve 10 are mounted immediately in front of the shale outlet 5. A float 13 which rests on the shale on the screen 3 is connected to vertical supports 14 by links 15, one of which is rigidly connected to a sector-shaped member 16 carrying two adjustable stops 17. The stops engage a rocking link 18, pivoted about the same axis as the member 16, which works the valve 10 through the link 19, the valve being opened when the shale bed has increased in thickness to a predetermined amount. The shale is then discharged over an extension shelf 20 into a chamber 6, the coal passing over the shelf 11. The extension shelf 20 is provided to prevent any discharge of shale when the valve 10 is closed. In a modification, Figs. 3 and 4, the float 21 is disposed in a tube 26 entering the washer below the screen and open to the air and is connected to a rocker 22 by a link 23, the end of the rocker lying between two adjustable stops 24 on a sector-shaped member 25 connected to the valve. An oil dash-pot 27 with plunger 28 connected to the rocker 22 is provided so that there is little resistance to the upward movement of the float but considerable resistance to its downward movement. As the depth of the shale bed increases more water will be forced up the tube 26 and when the limit of the lost motion device is exceeded the valve will be opened and shale discharged. One washer may, instead of the two control chambers, be provided with a single chamber open to the atmosphere and fitted with one or more transverse partitions with valves or flaps and control chambers may be provided at both ends of the washer. The float and valve may be connected electrically or by compressed air mechanism. Specifications 206,151, 254,709, and 306,169 are referred to.
Patent GB-426957-A (GB)
Title: Improvements in or relating to the standing rigging of sailing vessels
IPC: B63H9/10
Filed: 1933-10-11
Abstract: 426,957. Wire and like strainers. HIGHFIELD, J. S., 36, Victoria Street, London. Oct. 11, 1933, No. 28119. [Class 45] A backstay, runner, or other part of a ship's rigging is connected with a lever fulcrummed to the deck so that when the lever is thrown over to tighten the runner the direction of strain passes below the fulcrum and thus maintains the lever in operative position. By slightly lifting the free end of the lever the line passes above the fulcrum and pulls the lever over to the inoperative position. As shown in Fig. 1 the lever 1 is channel-shaped in crosssection and is pivoted by a pair of coaxial pins 3 to a pedestal 2. The wire 8 is spliced to an eye 7 held to the lever by a bolt 5 passing through one of a number of pairs of holes 6. For finer adjustment of the strain the eye may embrace an eccentric 22, Fig. 5, non- rotatably mounted on the pin which has an arm 25 temporarily held in the position shown by a button 26 engaging a groove 27 in the lever. By disengaging the button and turning the arm and therefore the pin and eccentric through 180‹ the relative position of the eye and lever may be altered. In the modification shown in Fig. 10 the lever is of simpler form and terminates in a hook 34 so that when the lever is thrown up the link 32 slides along the lever and is finally held by the hook. Reference has been directed by the Comptroller to British Specifications 208,474, 259,811, and 281,562, [all in Class 45], and U.S.A. Specification 1,835,516.
Patent GB-430955-A (GB)
Title: Improvements in fans
IPC: F04D29/42
Filed: 1934-10-02
Abstract: 430,955. Centrifugal pumps. STOTT, O., Chomlea, Claremont Road, Pendleton, Salford, Lancashire. Oct. 2, 1934, No. 28155. [Class 110 (i)] A semicircular vane b is secured to the scroll of a centrifugal pump obliquely to its axis. The scroll is bolted between side plates q, h which are formed with feet i. The scroll can be turned to bring the discharge c to any position before the side plates are bolted up.
Patent GB-1057046-A (GB)
Title: Magnetic materials preparation process
IPC: H01F1/09
Filed: 1963-07-16
Abstract: A fine particle magnetic material comprising Fe, Co and oxygen is prepared by electrodepositing into a mercury cathode fine particles of an alloy of Fe and Co, e.g. from an aqueous sulphate electrolyte, and then oxidizing the particles while suspended in the mercury, e.g. all as in Specification 996,913 and removing the mercury and simultaneously or subsequently treating the particles with hydrogen at an elevated temperature so as to prevent degradation of the magnetic properties of the particles or to restore these properties if degradation has occured during the mercury removal and so that the particles of Fe and Co still have an oxide coating.  Prior to the oxidation treatment the alloy particle-mercury slurry is heat treated at 200 DEG C. to eliminate dendritic branches on the particles and the slurry may be concentrated magnetically to remove some of the mercury, whereafter it may be subjected to an A.C. field treatment as in Specification 1,057,047.  After the oxidation treatment, which may be effected by bubbling warm moist air through the particle slurry, the mercury may be removed either by vacuum distillation or by vaporizing the mercury in a stream of an inert gas such as nitrogen, argon, or helium at 260 to 300 DEG C.  The hydrogen treatment may be with pure gas or with a non-combustible gas mixture consisting of 93% N2 and 7% H2 at a temperature of 280 to 300 DEG C.  If desired the mercury removal and hydrogen treatment of the particles may be combined in a single stage by using the non-combustible nitrogen-hydrogen gas mixture. The resulting alloy particles with their oxide coating may be formed into magnetic structures as in Specification 987,103.  For this the particles are dispersed in an organic solvent binder solution, e.g. of cellulose acetate, polythene, polyvinyl acetate, or a vinyl alcohol-acetate copolymer, polystyrene, an acrylic polymer, a linear aromatic polycarbonate or an epoxide resin, the particles removed from the solution and drained and a D.C. field applied to align the particles, and the solvent e.g. toluene, evaporated off by heating in an inert atmosphere.  The resultant friable mass of binder coated particles is then screened, placed in a combined A.C. and D.C. field, and hot pressed to the required shape.
Patent GB-487569-A (GB)
Title: Weed killing appliance
IPC: A01M21/04
Filed: 1937-10-16
Abstract: 487,569. Hand tools for destroying weeds. SPANYOL, E. Oct. 16, 1937, Nos. 28193 and 29789. [Class 6 (ii)] A weed-killing appliance comprises a container 4 for supplying weed-killing liquid to a prong or bar 2 fixed to a handle 1. The container 4 is so arranged that when the tool is in an inclined position as shown in Fig. 1 no liquid flows from the container. In this position the top of the weed is removed by the sharp end 3 of the prong 2. The tool is then raised to the vertical position and liquid flows from the container and runs down the surface of the prong 2 on to the weed. The upper end of the prong may be bent as shown to form a support for the container which may be provided with an air vent having a stopper or other closing means. The end 3 of the tool may be in the form of a. point or of flat chisel or gouge shape.
Patent GB-643366-A (GB)
Title: Improvements in or relating to means for automatically controlling the operation of electrical circuits
IPC: H03K17/288
Filed: 1947-10-22
Abstract: 643,366. Switching systems ; condenser arrangements. WAGSTAFF, P. A. Oct. 22, 1947, No. 28231. [Class 38 (iv)] [Also in Group XL (c)] A system for effecting timed and sequential energization of a number of electric circuits, such as the circuits containing the operating coils 12-16 of contactors controlling lamps or electrically-operable mechanisms, comprises a two-bank stepping switch. having a stepping magnet 9a energized by the intermittent discharge of a condenser 1 charged over resistors 2-6 of differing values and which are sequentially connected in the charging circuit as one wiper 8a of the stepping switch moves over contact bank 10. The other wiper 8b in moving over contact bank 11 sequentially completes an energizing circuit for each contactor coil. Discharge of the condenser is effected by a gasdischarge tube 7 which, in series with the stepping magnet, shunts the condenser. A potentiometer 21 permits control of the voltage at which tube 7 fires. Reference has been directed by the Comptroller to Specifications 604,390 and 636,113.
Patent GB-363660-A (GB)
Title: Improvements in or relating to formers or moulds for the production of articles of or containing organic materials
IPC: C08J5/02
Filed: 1930-09-22
Abstract: Master formers or moulds or replicas thereof and articles produced by such master moulds or replicas, are made from natural or artificial dispersions of rubber or other natural resins in non-vulcanized or vulcanized condition, synthetic rubbers and rubber-like substances in non-compounded or compounded condition, or of solutions of these substances in organic solvents.  The formers or moulds are first coated with the substance which is then treated as by the process described in Specification 324,988, [Class 70, Indiarubber &c.], to cause localized irregularities or wrinkling in the surface layer, the marking so produced being rendered permanent by subsequent or concurrent solidification.  A dipping former for the production of a rubber glove is provided with an unvulcanized coating of rubber. Master formers or moulds, may be used for the production of clay, plaster of Paris or metallic reproductions.  Part of the pattern may be removed from the moulds or formers.  The articles produced are preferably vulcanized before removal from the formers.
Patent GB-173615-A (GB)
Title: Improvements in or appertaining to printing machines
IPC: B41F21/00
Filed: 1920-10-06
Abstract: 173,615. Waite, F., and Waite & Saville, Ltd. Oct. 6, 1920. Tripping - arrangements. - In printing-machines having suction feed-mechanism, cam-actuated valves are employed acting on the suction devices to prevent the feed of a sheet or sheets, whereby inking may be repeated as often as desired. As shown for double inking, an intermittently rotating cam b, provided with projections 2 and hollows 3, engages a roller c on one end of a bell-crank lever d, the other end carrying a weight 4 situated below the weighted end of a lever g controlling a valve h opening into the suction cylinder k. The effect of each projection 2 is to impair the suction and thus prevent the feed of a sheet, the absence of a sheet causing the impression to be tripped. A ratchet p on the shaft a of the cam b is rotated by a pawl s through levers t<1>, u, v, x, the latter carrying a roller x<1> engaging a cam y on the shaft y<1> which serves to drive the piston m. For more than double inking, the cam b is replaced by one with fewer projections 2.
Patent GB-283577-A (GB)
Abstract: 283,577. Schering-Kahlbaum Akt.- Ges., (formerly Chemische Fabrik auf Actien, vorm. E. Schering). Jan. 14, 1927, [Convention date]. 4-Alkylquinolines are obtained by condensing aniline or its derivatives with alkyl-#-halogenethylketones (obtainable according to Specification 282,412) in acid, neutral, or alkaline solution in presence or absence of an oxidizing agent such as nitrobenzene or arsenic acid. According to examples.. the following compounds, are obtained : -(1) 4-Methylquinoline (lepidine) from aniline and methyl-#-chlorethylketone; (2) 6-methoxylepidine from p-anisidine; (3) 8-methoxylepidine from o-anisidine: (4) 6-ethoxylepidine from pphenetidine; (5) 6-nitrolepidine from p-nitraniline; (6) 6-chlorlepidine from p-chloraniline; (7) lepidine-8-carboxylic acid from anthranilic acid ester (saponification is effected during the condensation) ; (8) 4-ethylquinoline from aniline and ethyl-#-chlorethylketone; condensation is effected in presence of nitrobenzene and concentrated hydrochloric acid or 40 per cent sulphuric acid, or in one case caustic soda; a mixture of bases is usually obtained, the desired product being isolated as the picrate except in the case of the carboxylic acid.
Patent GB-1511654-A (GB)
Title: Internal combustion engine
IPC: F01C1/10
Filed: 1975-05-23
Abstract: 1511654 Rotary positive-displacement fluid machines H O HEBDITCH 23 May 1975 [26 June 1974] 28373/74 Heading F1F An I.C. engine comprises a casing 11, 12, an eccentric 19, 21 on a rotary shaft 18 which slidingly engages the sides 20 of a cavity formed within a block 15 located in the casing, and slides 13, 14 between which block 15 reciprocates tranversely of the block cavity as the eccentric orbits due to rotation of shaft 18. Two variable-volume spaces are thus formed between the eccentric and the ends of the block cavity. An inlet port 25, exhaust port 40, transfer ports 23, 24 and a spark-plug hole 26 are provided in the casing. Thus starting from the Figure 3 position, clockwise rotation of eccentric 19, 21 exhausts burnt gases via port 40 whilst uncovering port 25, due to leftwards movement of block 15, to draw in a fresh charge. When the eccentric reaches the upper part of the block cavity, exhaust is completed and compression of charge in the lower space begins by continued rotation. As compression is terminating, Fig. 2, compressed charge is transferred via port 24 and transfer chamber 22 to port 23 and thence to the top space for further compression before ignition by plug 27. The block may oscillate about a pin Figs. 6 to 9 (not shown), and instead of being completely enclosed by the casing may be merely located between a pair of casing end parts Fig. 10 (not shown).
Patent GB-535743-A (GB)
Title: Improvements in or relating to electric cables
IPC: H01B11/18
Filed: 1939-10-24
Abstract: 535,743. Cables. PIRELLI-GENERAL CABLE WORKS, Ltd., and WERREN, H. T. Oct. 24, 1939, No. 28558. [Class 36] In a cable with co-axial conductors, the central conductor 1 is insulated from the outer 3, shown as a series of wires, by one or more layers of tubes or cords 2 of low-loss plastic material such as polythene or rubber. The whole may have a lead sheath 4. Each tube or cord is, throughout its entire length, in contact with adjacent tubes or cords and also with the central conductor or adjacent layer.
Patent GB-281464-A (GB)
Title: Improvements in and connected with buffer casings for railway vehicles
IPC: B61G11/18
Filed: 1926-11-15
Abstract: 281,464. Macaulay, T. B. Nov. 15, 1926. Buffers.-A case for a railway-vehicle buffer is formed from a weldless tube A by folding flattened portions C over one another and welding them together. The tube is slotted at B, Fig. 1, the portions C being flattened into the shape shown in Fig. 2, which are folded over one another as shown in Fig. 4, and welded together. The sides of the tube may be squeezed in dies to form ribs D which may also be riveted.
Patent GB-603756-A (GB)
Title: Cushioning rollers for conveyor belts
IPC: B65G39/06
Filed: 1945-10-30
Abstract: 603,756. Endless-belt conveyers. SEARLES, A., and SWARTZ, C. A. Oct. 30, 1945, No. 28716. Convention date, Dec. 2, 1944. [Class 78 (i)] An idler roller comprises a resilient tyre having a radially inwardly extending rib, an annular member supporting said tyre and having substantially radial sections flanking said rib, a shaft, a plate attached to the shaft and spaced from the tyre-supporting member, and a non-metallic resilient element attached to and connecting said tyre-supporting member with said plate. An idler roller 21, Fig. 2, has a resilient tyre 1 of axial T-shaped crosssection. The central rib 2 is reinforced by layers of duck 3 and wires 4 and is received between annuli 6. Grooves 5 are provided to allow room for displacement. The annuli 6 have flanges 7 and 8 and are bonded to a rubber ring 10. Metal plates 11 are attached to the rings 10. Each plate 11 is secured to a rubber ring 12 which is attached to a metal ring 13. Rings 13 have flanges 14 secured by screws 16 to the tubular shaft 19. End rings 13 are supported on part 19a of flange 19b. Extension 19a screws into end 19b to press the roller units tightly together. Various modifications of the idler rollers are described. In one modification, the lower part of the tyre is constrained between annuli which are joined by a ring and the outer rubber rings are rigidly attached to the hub. The end hubs are threaded on to a supporting shaft to clamp the units together and have cut-out pieces to receive locking rings which are threaded on to the supporting shaft. In a further modification, the annuli are clamped together by bolts and nuts to secure the tyre in a proper position. Annuli are divided into two segments, each connected to a separate plate attached to the hub. The annuli may also be flared outwardly and extend downwardly. The annuli are divided into two pairs of quadrants, one pair engaging segmental plates attached to the hub, whilst the second are connected by resilient elements with a pair of central abutting rings which encircle the hub and are resiliently connected with the plates. The tyre may be cupped on its inner side to be of U-shaped cross-section. The tyre is then supported by a metal rim which has firm gripping contact with the flanges of plates which are held together by nuts and bolts. Clips may be welded to the rim or they may be free. The plates are flared to become side walls slidably engaging plates which are attached to supporting hubs.
Patent GB-1216365-A (GB)
Title: Improvements in and relating to sealing means
Inventor: BOVAGNE RENE
IPC: F27B7/24
Filed: 1968-06-17
Abstract: 1,216,365. Seals. SOC. DES FORGES ET ATELIERS DU CREUSOT. 17 June, 1968 [16 June, 19671, No. 28758/68. Heading F2B. Sealing means between a rotary furnace chamber 1 and a stationary end therefor, e.g. a smoke box 2, comprises a sealing ring located between flanges 5, 6 mounted on the stationary end and urged radially by resilient means into contact with a collar 20 coaxially surrounding the chamber 1, an annular partition 21, 22 extending between the chamber 1 and the collar 20. The flanges 5 and 6 are mounted on a stationary collar 3 and an axially movable collar 4 respectively. The sealing ring is formed by arcuate bars 10 each urged radially inwards by a spring 15 connected to an arm 16 integral with the collar 4 and to one end of a pivoted lever 13 whose other end rests on the bar 10. The tension of the spring 15 can be adjusted by a screw 17. One end 19 of each bar is a sliding fit in a recess 18 in the next bar. The ring 21 is pressed by spring-loaded lugs 23 against the ring 22 which is fixed to the chamber 1. The collar 20 is driven from the chamber by chains 27. The other end of the chamber is similarly sealed and may also be provided with an additional seal comprising an asbestos sealing ring (28), Fig. 6(not Shown), which engages the chamber 1 and is supported by a collar (29) fixed on a ring (30) pressed against a ring (33) integral with the collar (4). Heat insulation. TECHNIGAZ. 1,216,375. Heat insulation. TECHNIGAZ. 29 Jan., 1968 [28 Feb., 1967], No. 4518/68. Heading F2X. [Also in Divisions B7 and F4] A wall 2 of a tank for liquefied gas in a ship (or stationary structure) is thermally insulated by a plurality of flexible walled bags 6 containing perlite and stacked against the ships hull 4 (or concrete wall) to completely or partially fill the space between the two walls 2 and 4. The bags are approximately parallelepiped in shape and are secured to the wall 4 by flexible straps 8 or by rigid or flexible tie rods 9 with a retaining plate 10 or flange. The spaces between the edges of the bags and/or the space between the bags and the wall 2 are filled with rock wool. The insulation may support flexible walled tanks.