baber/WOPTO huggingface dataset:
Patent GB-1385351-A (GB)
Title: Screen for x-ray photography and a method of obtaining x-ray  photographs
IPC: G21K4/00
Filed: 1972-03-13
Abstract: 1385351 Luminescent screens FUJI PHOTO FILM CO Ltd 13 March 1972 [12 March 1971] 11678/72 Heading C4S [Also in Division H5] A screen for use in X-ray photography ineludes spaced X-ray absorbing, electrically conductive members 8, 8<SP>1</SP> and a substance or mixture of substances 7 which fluoresces under X-ray excitation and also on application of an E field between members 8, 8<SP>1</SP>. Preferably included are X-ray absorbing electrically non- conductive members 9 at right angles. The uniform light emission due to electric potential effects optimum sub-exposure and the members 8, 8<SP>1</SP>, 9 reduce X-ray scattering. A method of X-ray photographing includes applying a potential before, during or after exposure of the film. Plates 8 may be Pb or Cu, and fluorescent substances may be ZnS : Ag; CaWO 4 ; MgWO 4 ; ZnCdS : Ag; ZnS : Cu; BaSO 4  : Pb; ZnS : Zn; and ZnS : Mn with plastic binders such as triacetyl cellulose. Dimensions and electrical parameters are disclosed. Preferably the fluorescent substances are only on the side facing the film to reduce scattered X-ray influence. The mixture of substances may be one or more substances excited by X-rays and one or more substances excited by an electric field.
Patent GB-117755-A (GB)
IPC: C01D7/00
Abstract: 117,755. Scholes, S. R. Nov. 5, 1917 Potassium salts, obtaining from complex silicates. Minerals such as feldspar are ground and mixed with a sodium or potassium compound such as the carbonate in quantity such as to supply one equivalent of alkali metal oxide to each two equivalents of silica in the mineral, and the mixture is fused. The melt is poured into water and ground, and is then boiled with water and treated with carbonic acid or gases rich in carbonic acid, for instance cement kiln gases containing potash. The alkali carbonates are then formed in solution leaving hydrated silica, alumina. &c., as a precipitate. The solution is filtered off and evaporated ; a quantity equal to that extracted from the rock is withdrawn and the remainder is used to treat the next batch of rock. If the operation is started with sodium carbonate, all the sodium carbonate may be thus withdrawn after a number of cycles, leaving only potassium compounds for subsequent cycles. Alternatively, when sodium carbonate is used to start the operation, the solution first obtained may be concentrated so as to precipitate most of the sodium carbonate, which is separated, and the potassium carbonate remaining is then used with an appropriate quantity of rock for the next cycle.
Patent GB-706631-A (GB)
Title: Improvements relating to the production of welded joints in pipes and the like operating under stress at high temperatures
Inventor: BAILEY RICHARD WILLIAM
IPC: B23K33/00
Filed: 1951-05-21
Abstract: 706,631. Uniting by fusion. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. April 17, 1952 [May 21, 1951], No. 11826/51. Class 83 (4) A single V- or U-type of welded butt joint between metal pipes or tubular parts 1, 2 made of steel or alloys which have high strength at elevated temperatures and a high resistance to creep under load is made by depositing an initial layer or layers 3 of metal which is relatively ductile, of low creep strength and does not fail by intergranular cracking under sustained working stress and temperature, and subsequent layers 4 of metal which has a creep strength at elevated temperatures comparable with that of the parts 1, 2 which are prepared for the joint simply by machining. The parts 1, 2 may be steam pipes of ferritic chromium-molybdenum steel, the layer 3 may be mild steel and the layer 4 may be carbon-molybdenum steel, chromium-molybdenum steel, molybdenum-vanadium steel or chromiummolybdenum-vanadium steel. The outer surface of the joint may be dressed smooth or, alternatively, an outer layer of mild steel may be deposited on the joint. A backing ring may be placed between the pipe ends. Specification 482,201 is referred to.
Patent GB-252007-A (GB)
Title: Process and machine for stranding wires
IPC: D07B3/00
Filed: 1926-05-07
Abstract: 252,007. American Cable Co., Inc., (Assignees of Conner, E. A.). May 9, 1925, [Convention date]. Wire ropes; machines for making. - In a machine for making wire ropes &c. wherein the component wires are driven simultaneously through dies so as to form them into helices the helical components are laid into a strand, rope &c. as they emerge from the preforming means. The forming head 40 may be arranged to rotate with the flyer 14, 15 carrying the supply reels 30 or may be stationary, the wires with this arrangement being laid by means of a flyer carrying the receiving reels; and comprises in the rotating form a collar 11 keyed to the spindle 9 carrying the supply reels 30 and preferably formed integrally with the flyer 14. 15, and provided with a number of holes 13, through which the wires 44 are led to rollers 45, 46 by which they are fed to the forming dies 41. The dies 41 comprise pins having peripheral helical grooves and are carried in a flanged portion 53 of the head. the portion 53 also carrying the feed rollers 45. 46 which are driven through worm gearing 54. 55 by spur wheels 59 which are carried by the portion 53 and engage a stationary annular wheel 60 carried bv one of the machine supports 2. The wires leaving the forming head are preferably laid about a wire core 33 which is drawn through the hollow spindle 9. The stationary form of head differs only in that the annular gear 60 is driven through gearing from the lay shaft 4 and that the spindle 9 is stationary. The spindle 9 is slidable axially to permit removal &c. of the supply reels 30 and is locked in position by a hand-wheel 10 and the reels 30 are braked by devices 32 carried by the flyer. the flyer 14. 15 being mounted at the end remote from the forming bead by rollers 34 engaging in an annular track 35. The receiving reel which is mounted in the usual manner so as to rotate end-upon-end with the flyer, is rotated within the fiver for taking up the finished rope by gearing which includes a friction clutch. Specification 206,605 is referred to.
Patent GB-552026-A (GB)
Title: Improvements in or relating to fastening means for securing objects together
IPC: F16B5/10
Filed: 1941-09-17
Abstract: 552,026. Stud fastenings. HOPGOOD, T. Sept. 17, 1941, No. 11945. [Class 44] A fastening device, described as particularly suitable for securing an aeroplane panel 10 to a support shown as a second panel 11, comprises a stud 2 rotatably mounted on panel 10 and provided with projections 7 which are passed through an aperture in the support into engagement with the coils 14 of a preferably conical spring secured to the support. The stud is rotated by screw-driver &c. applied to a slot in the head 3 of the stud, causing the projections to travel along and compress the spring. Preferably the spring has several coils with a corresponding number of projections on the stud to provide a multi-start screw action. As shown the spring has two coils 14 connected at their free ends by a preferably integral bridge-piece 15. The coils are. bent to provide depressions 19 into which projections 7 snap to prevent accidental release of the stud and to provide parallel portions, merging into the bridge-piece, which act as abutments limiting rotation of the stud. The other ends 16 of the coils are bent outwards and formed with terminal eyes to receive securing devices such as rivets or screws 18 which also secure the base-flange 21 of a preferably frustro-conical guide socket 22 surrounding the support aperture. The socket may have an outwardly curled lip 20 and has slots through which ends 16 pass. A rubber or other resilient washer may be introduced between the parts 10, 11 and surrounding the stud, particularly if panel 10 is of curved form, the washer preferably being cemented to the panel. To facilitate assembly of the stud on the panel its cylindrical shank is hollow, with circular apertures 5, Fig. 5, and initially has convex humps 8 in the region of the apertures. A cylindrical pin 6, the ends of which provide the projections 7, has its ends reduced by flats 9, and is passed through the apertures 5 after the stud shank has been passed through the aperture in the panel. The humps 8 are then flattened to force the aperture walls into contact with the flats and retain the pin against removal.
Patent GB-310377-A (GB)
Title: Improvements in or relating to liquid gears
IPC: F16D33/00
Filed: 1929-04-17
Abstract: 310,377. Grade, H. April 24, 1928, [Convention date,]. Hydraulic transmission of power.-The member b, Fig. 1, has two rings of oppositely-inclined vanes c, d co-operating with vanes f in the casing e. In a modification, additional oppositelyinclined vanes c', d', Fig. 3, travel through slots in the vanes f.
Patent GB-1492118-A (GB)
Title: Delivery units for use with rotary presses
IPC: B41F13/54
Filed: 1975-03-21
Abstract: 1492118 Folding and cutting apparatus MITSUBISHI JUKOGYO KK 21 March 1975 [25 March 1974] 12038/75 Heading B8R Sheets cut from a web 1 by cutters 6 on a cylinder 4 are either directed to a stack 3 via gripper cylinder 15 and chain grippers 17 or are directed to a folding cylinder 7 which folds them into a jaw cylinder 11 which passes them to a delivery fan 13. The route taken by the sheets is determined by cam actuated picker pins on cylinders 4 and 7, the pins being arranged such that either those on cylinder 4 or those on cylinder 7 grip the sheet for cutting only or cutting and folding respectively. The web 1 may be longitudinally slit at 22 and longitudinally folded on a folding plate.
Patent GB-814361-A (GB)
Title: Improvements in or relating to anglers' fishing lines
IPC: A01K93/00
Filed: 1954-04-26
Abstract: 814,361. Fishing tackle. HOLLAND, B. July 26, 1955 [April 26, 1954], No. 12041/54. Class 48. An angler's fishing line 11 has the float 12 thereof freely movable on the line and is provided with a stop 10 of resilient material adjustably mounted on the line by frictional engagement therewith to limit the relative movement of the float along the line due to buoyancy. The stop may be formed as an elongated bead of hard rubber and the line may be threaded through it or engage jaws formed by a slot in the bead. Initially the line is threaded through the bead by means of a needle. A sinker 13 rests on a connector 14 connected to the hook 15.
Patent GB-1171080-A (GB)
Title: Ring-Segment for a Tunnel.
Inventor: REHNEN JOHANNES
IPC: E21D11/15
Filed: 1968-03-12
Abstract: 1,171,080. Tunnels. BUDERUS 'SCHE EISENWERKE. 12 March, 1968, No. 12044/68. Heading E1F. A tunnel segment 1 comprises a curved portion 2 having a peripheral flange 3 and one or more rows of depressions 7. The internal troughs 4 have lateral partitions and the depressions 7 may contain a filler.
Patent GB-387553-A (GB)
Title: Improvements in dental equipment stands
IPC: A61G15/14
Filed: 1932-04-27
Abstract: 387,553. Dental equipment stands ; saliva ejectors. ATOMISEUR GES. FœR RATIONELLE ZAHN-UNDMUNDPFLEGE, and ALTMANN, M., 220, Kurfurstendamm, Berlin. April 27, 1932, No. 12081. [Class 81 (ii).] In a dental equipment stand, comprising the usual assembly of instruments and appliances, all the separate devices operated by gas or liquid under pressure (atomizers, saliva ejectors, water jets, &c.) are connected to a gas bottle, or battery of such bottles, containing gas under pressure and interchangeably arranged within the apparatus. A gas bottle 2, Fig. 2 is fitted with a high pressure reducing valve 3 connected to distributing valves 6, 8 and a manometer 38, and connected also to a low pressure reducing valve 10 supplying distributing valves 11, 12, 14, 16, 18 and a manometer 39. Certain of the valves are connected by flexible tubes passing round weighted pulleys running on guides, to air-operated instruments such as the ejectoroperated saliva withdrawing device 7, Fig. 4, which is supplied with compressed gas through the flexible tube 26 and is provided also with a similar flexible outlet tube connected by a rigid pipe 28 to a collecting vessel 29 within the apparatus. A water reservoir 31, Fig. 5, within the apparatus is connected to the gas supply valve 12 by a pipe 30 opening into the cover of the reservoir, and is connected by a pipe 32 leading upwards from the base of the reservoir to a flexible tube 33 supplying a water jet 13. An electric heater 35 controlled from the usual switchboard on the apparatus, may be arranged on the tube 33. Electrically - operated instruments, a dental engine with a foot switch, and an instrument table are also provided. In the construction shown in Fig. 6 a cold water reservoir 31 and an electrically heated hot water reservoir 31a are provided, each having an inlet pipe 51 through which water may be poured and the cold-water reservoir having a connection 54 to the main water supply where this is available. The two reservoirs are connected at the bottom by a pipe 56 fitted with a non-return valve permitting flow only towards the hot water reservoir 31a. The reservoirs have connections 30, 46 to the compressed gas supply and outflow pipes 48 leading to the various instruments and to a draw-off tap. Additional outflow pipes 49 are provided, leading to a mixing chamber 50 whence the instruments may be provided with warm water. Air removal pipes 52 and a safety valve 53 are fitted to the reservoirs.
Patent GB-407834-A (GB)
Title: Method of making a printing surface
IPC: G03F7/04
Filed: 1933-04-25
Abstract: 407,834. Stereotype. BENNETT, C. W., 243, Alameda Avenue, Douglaston, Long Island, New York, U.S.A. April 25, 1933, No. 12082. Drawings to Specification. [Class 100 (ii).] A relief printing-surface is prepared by chilling to solidification selected portions, e.g. the characters of a cast plate, and raising these portions to obtain an increased relief. The matrix is preferably a metal plate which is provided with a bichromated gelatine surface to which the image is applied photographically. The plate is then coated with a varnish, and is dusted over with a powdered material capable of evolving gas when heated, such as powdered glass (obtained from a Cottrell precipitator in the stack of a furnace burning powdered coal), sand, metallic oxides such as iron oxide, or metal salts, such as copper arsenate, cadmium oxalate, or calcium carbonate. The plate is then developed by washing with water, the powdered material enabling the water to penetrate the varnish and remove the gelatine and superposed varnish at the unexposed portions. The plate may then be covered with a film of flexible material, preferably by applying a solution of rubber in petroleum naphtha or benzol. When a plate is cast, the molten metal coming into contact with the metal of the matrix, which is preferably cooled, is chilled to solidification, but the metal in contact with the heat-insulating coating remains liquid and is forced away from the coating by the gas evolved. To obtain a greater relief, the plate may first be heated while the casting-metal is in contact therewith and subsequently chilled. In an alternative process the matrix forms the upper side of the mould, and after the casting-metal has been poured and the selected portions chilled, the plate is raised by suction or magnetic means, so that the chilled portions adhering to the plate will be raised and so increase the relief. A similar effect is obtained by withdrawing a certain amount of metal from the mould after selected portions have been chilled.
Patent GB-907860-A (GB)
Title: Cryogenic storage tank
IPC: G11B5/55
Filed: 1961-04-05
Abstract: 907,860. Storing liquefied gas. CHICAGO BRIDGE & IRON CO. April 5, 1961 [Sept. 26, 1960], No. 12146/61. Class 8(2) A storage installation for liquefied gas L comprises an inner storage vessel 10 disposed within and spaced from an outer housing 14, the inner vessel being mounted on a lightweight concrete foundation 18 having a plurality of circular or polygonal cross-sectioned cavities 19 extending through the thickness thereof. The space 21 between the vessel 10 and the housing 14, and the cavities 19, are filled with granular or fibrous insulating material 22, e.g. expanded perlite. The concrete has a density of between 5 and 40 pounds per cubic foot and may comprise light-weight aggregates or be formed by aeration. The foundation 18 is provided with a concrete cap 20. The housing 14 rests upon a prepared foundation 23 having conduits 24 extending therethrough, hot water, for example, being circulated through the conduits 24 to prevent the foundation 23 from freezing.
Patent GB-190109-A (GB)
IPC: C10B1/04
Filed: 1922-05-01
Abstract: 190,109. Razen, Schaefer, et Cie Ges. Dec. 7, 1921, [Convention date]. Retorts.-A retort for the distillation of schists, bituminous materials, brown coal and the like comprises lateral walls 1 enclosing a space of small thickness and relatively considerable height and width and is provided with gratings 3 leading to a collecting space 4 from which the distillates pass to conduits 5. The two lateral walls are heated and the retort may be worked continuously. Partitions 6 may be arranged in the collector 4 and distillates collected separately by conduits 7. The gratings 3 may be disposed in a part only of the retort and may be placed as in Fig. 4 so as to be readily removable. When the retort is heated by the introduction of steam or inert gases, these are supplied to a space bounded on each side by gratings so as to drive the distillates horizontally across the retort as shown by the arrows in Fig. 1.
Patent GB-1199287-A (GB)
Title: Improvements in and relating to Refrigerator Systems
Inventor: FISHER JEFFREY O'NEIL
IPC: F25B15/10
Filed: 1967-03-15
Abstract: 1,199,287. Defrosting. HOTPOINT Ltd. 14 March, 1968 [15 March, 1967], No. 12188/67. Heading F4H. In an absorption refrigeration system of the type in which unevaporated refrigerant from the evaporator is accumulated in a liquid trap and subsequently used to defrost the evaporator, means are provided for restricting the rate at which the refrigerant enters the trap. As shown, liquid refrigerant from the evaporator outlet line 10 enters a chamber 15, the bottom of which is formed by a plug having a metering orifice 12 through which the refrigerant passes to a liquid trap 11. When the liquid reaches level A-A it is removed from the trap by a syphon 18 and passes through line 19 to a chamber which is heated by the system generator (Fig. 1, not shown). Refrigerant vapour returns through line 19 and passes through line 21 to a coil in heat exchange with the evaporator. The pressures in trap 11 and line 10 are equalized during syphoning by a conduit 16. In a modification (Fig. 3, not shown) tube 16 extends vertically through chamber 15 and the meeting orifice is located in the wall of the tube.
Patent GB-611134-A (GB)
Title: Improved drive for rotary drums, furnaces and the like
IPC: F26B11/02
Filed: 1946-04-23
Abstract: 611,134. Friction gearing. AKTIEBOLAGET TORKAPPARATER. April 23, 1946, No. 12196. Convention date, April 23, 1945. [Class 80 (i)] [Also in Groups II and XII] In a friction drive for rotary drums, furnaces, containers or the like, the drum is supported on driving friction rollers 1, which engage driving rings 3 on the drum, each roller being driven by its individual motor 4 to equalize any differences of the transmission ratio between a driving ring 3 and a driving roller 1 at the different transmission points. In one modification, each ring 3 has two driving rollers driven by individual motors, and in a second modification some rollers are driving rollers and some are supporting rollers.
Patent GB-438492-A (GB)
Title: Improvements in or relating to shock absorbers
IPC: B66B7/06
Filed: 1935-04-23
Abstract: 438,492. Shock-absorbing devices. MONARCH DOOR CONTROLLER CO., Ltd., SMITH, G. W. PETTIGREW-, and SAMS, J. G. B., 7, Victoria Street, Westminster. April 23, 1935, No. 12201. [Class 78 (ii)] [See also Group XXXII] The invention relates to a shock-absorbing arrangement, for incorporation in a hoisting rope or chain or in a rope used to connect a vessel to a bollard or in a towing connection, comprising two pairs of levers having curved coacting surfaces for varying the fulcrum of the levers when their outer ends are moved. According to the invention, the normally adjacent ends of each pair of levers are arranged nearer the centre line of the shock absorber than the normally diverging ends of the levers and the levers of each pair are made to roll against each other by means subject to tension applied to the outer end of one or of each of the two levers. The inner ends of the levers 1, 2 and 3, 4 are pivotally mounted on cross heads 6, 6<a> which slide on a rod 7 against the compression of rubber blocks 8, 8<a> or metallic springs when the outer ends of the levers are moved towards each other by pairs of links 14, 14<a> (not shown), 15, 15<a>, 10, 10<a> (not shown), and 11, 11<a> under the action of tension applied at the hook 13<a> and shackle 18. In a modified construction, Fig. 4, for towing an object at or near the surface of the sea, ropes 29, 30 are attached to levers 1, 3 pivotally mounted to the member 25 and provided with curved surfaces coacting with similar surfaces on the levers 2, 4 which are mounted on the member 25. The ends of the levers 2, 4 have rods 31, 32 with caps 35, 36 engaging the ends of springs 33, 34 which are compressed against abutments 25<a>, 25<b> carried on the member 25.
Patent GB-965196-A (GB)
Title: Tris(alkylaminophenyl)amines
IPC: C08K5/18
Filed: 1963-03-28
Abstract: The invention comprises compounds of the formula: <FORM:0965196/C1/1> wherein R is a secondary alkyl radical having 3 to 6 carbon atoms or a cycloalkyl radical having 5 or 6 carbon atoms. The compounds are prepared by the reductive alkylation of tris (p-aminophenyl) or tris (p-nitrophenyl) amine with the corresponding ketone in the presence of hydrogen and a palladium or carbon catalyst.ALSO:Natural and synthetic rubbers are protected against ozone attack by the addition of a tris (P-N,N-dialkylamino-phenyl) amine in which the alkyl groups are the same and have 1 or 2 carbon atoms or a tris (p-N-monosubstituted amino phenyl) amine in which the substituent is a secondary alkyl group having 3 to 6 carbon atoms or a cycloalkyl group having 5 or 6 carbon atoms.
Patent GB-902959-A (GB)
Title: Improvements relating to electrical switch arrangements
Inventor: KING KENNETH GORDON
IPC: H04M1/66
Filed: 1957-10-16
Abstract: 902,959. Switching systems. WESTING- HOUSE BRAKE & SIGNAL CO. Ltd. Oct. 16, 1958 [Oct. 16, 1957], No. 12251/62. Divided out of 902,957. Class 38 (4). In order to initiate the supplies to a telephone cable fed from both ends by rectifier sets M1, M4 having a constant current characteristic but subject to voltage limiting as disclosed in Specification 902,958, current sensitive relays are provided at both ends of the cable. The rectifier sets can be switched to provide approximately 20% of their normal current as disclosed in Specification 902,957. The first set, e.g. M1, is switched on manually at this low level. This current through the cable energizes a relay RL2 at the other end M4, the relay locks up and prepares a circuit to the controller (not shown) of M4 so that when M4 is switched on manually it will provide normal power. Due to its voltage limiting characteristic, however, it will only be able to provide half the total cable voltage and hence half the current. This increased current in turn causes the relay RL1 at the first end M1 to lock up and allows the controller (not shown) of M1 to provide normal power, and the cable current rises to its full value with the two rectifier sets sharing the total voltage. The relay RL1 did not respond to the original low level current output from M1 because the winding 26 was balanced by a winding 28 energized in accordance with the current input to M1.